Point to specific project.

Added fast PPU override for Marvelous (fixes text rendering)
Fixed disassembly of SNES CPU opcodes 0x74-0x76 [invertego]

.cirrus.yml

@@ -0,0 +1,84 @@
+linux-x86_64-binaries_task:
+    container:
+        image: ubuntu:latest
+
+    setup_script:
+        - apt-get update && apt-get -y install build-essential libgtk2.0-dev libpulse-dev mesa-common-dev libgtksourceview2.0-dev libcairo2-dev libsdl2-dev libxv-dev libao-dev libopenal-dev libudev-dev zip
+
+    compile_script:
+        - make -C bsnes local=false
+
+    package_script:
+        - mkdir bsnes-nightly
+        - mkdir bsnes-nightly/Database
+        - mkdir bsnes-nightly/Firmware
+        - cp -a bsnes/out/bsnes bsnes-nightly/bsnes
+        - cp -a bsnes/Database/* bsnes-nightly/Database
+        - cp -a shaders bsnes-nightly/Shaders
+        - cp -a GPLv3.txt bsnes-nightly
+        - zip -r bsnes-nightly.zip bsnes-nightly
+
+    bsnes-nightly_artifacts:
+        path: "bsnes-nightly.zip"
+
+freebsd-x86_64-binaries_task:
+    freebsd_instance:
+        image: freebsd-12-0-release-amd64
+
+    setup_script:
+        - pkg install --yes gmake gdb gcc8 pkgconf sdl2 openal-soft gtksourceview2 libXv zip
+
+    compile_script:
+        - gmake -C bsnes local=false
+
+    package_script:
+        - mkdir bsnes-nightly
+        - mkdir bsnes-nightly/Database
+        - mkdir bsnes-nightly/Firmware
+        - cp -a bsnes/out/bsnes bsnes-nightly/bsnes
+        - cp -a bsnes/Database/* bsnes-nightly/Database
+        - cp -a shaders bsnes-nightly/Shaders
+        - cp -a GPLv3.txt bsnes-nightly
+        - zip -r bsnes-nightly.zip bsnes-nightly
+
+    bsnes-nightly_artifacts:
+        path: "bsnes-nightly.zip"
+
+windows-x86_64-binaries_task:
+    container:
+        image: ubuntu:latest
+
+    setup_script:
+        - apt-get update && apt-get -y install build-essential mingw-w64 zip
+
+    compile_script:
+        - make -C bsnes local=false platform=windows compiler="x86_64-w64-mingw32-g++" windres="x86_64-w64-mingw32-windres"
+
+    package_script:
+        - mkdir bsnes-nightly
+        - mkdir bsnes-nightly/Database
+        - mkdir bsnes-nightly/Firmware
+        - cp -a bsnes/out/bsnes bsnes-nightly/bsnes.exe
+        - cp -a bsnes/Database/* bsnes-nightly/Database
+        - cp -a shaders bsnes-nightly/Shaders
+        - cp -a GPLv3.txt bsnes-nightly
+        - zip -r bsnes-nightly.zip bsnes-nightly
+
+    bsnes-nightly_artifacts:
+        path: "bsnes-nightly.zip"
+
+macOS-x86_64-binaries_task:
+    osx_instance:
+        image: mojave-base
+
+    compile_script:
+        - make -C bsnes local=false
+
+    package_script:
+        - mkdir bsnes-nightly
+        - cp -a bsnes/out/bsnes.app bsnes-nightly
+        - cp -a GPLv3.txt bsnes-nightly
+        - zip -r bsnes-nightly.zip bsnes-nightly
+
+    bsnes-nightly_artifacts:
+        path: "bsnes-nightly.zip"

.gitattributes

@@ -0,0 +1,2 @@
+*.fs linguist-detectable=false
+*.vs linguist-detectable=false

.github/FUNDING.yml

@@ -0,0 +1 @@
+patreon: byuu

.gitignore

@@ -1 +0,0 @@
-ananke/libananke.so

CONTRIBUTING.md

@@ -0,0 +1,89 @@
+Contributing
+============
+
+Code contributions are most welcome and highly appreciated!
+
+But first, please note that although bsnes is licensed under the GPLv3 license,
+in order to be merged upstream, any code contributions must be provided under
+the ISC source code license.
+
+This is *not* a CLA (community license agreement), no legal contract needs to be
+signed, and you will maintain full and exclusive copyright ownership over any
+contributed source code.
+
+There are two reasons for this requirement:
+
+GPLv4+
+------
+
+bsnes is currently licensed under the GPLv3 license only. I do not license bsnes
+under the GPLv3 or later license, because there is no way of knowing what the
+GPLv4 and later licenses will change, and if they will be in the best interests
+of emulator development and video game preservation.
+
+Although I put a good deal of trust into the FSF, no one is an oracle that can
+predict the future. Would *you* agree to a license before being able to read it?
+
+However, the GPLv4 may prove beneficial, and close important holes in the GPLv3
+license, just as the GPLv3 license closed the GPLv2's TiVoization loophole. And
+so it is important that bsnes retains the option of relicensing to the GPLv4+ in
+the future.
+
+As a point of interest, there have been projects with similar concerns about
+using a GPLv2 or later clause, that are now permanently stuck on the GPLv2
+license. There have also been projects that did use a GPLv2 or later clause,
+only to disagree with the changes introduced in the GPLv3.
+
+ISC
+---
+
+The more important reason for this requirement is that it is my intention to
+release the entirety of bsnes under the ISC license once official upstream
+development has ceased.
+
+The reason I would want to relicense bsnes to the ISC license upon its official
+discontinuation is because once again, no one is an oracle, and I cannot predict
+what future issues bsnes permanently remaining under the GPLv3 license may
+cause.
+
+For instance, imagine a world where a certain vendor took over the world, and
+the only way to distribute applications was with their approval, and their store
+rules forbade GPLv3 software. Or perhaps a world where the GPL was abandoned in
+favor of the new OSSv1 license. But GPLv3 software was incompatible with the
+OSSv1 license. Other open source developers would not be able to use bsnes in
+that scenario.
+
+It would be very disappointing if all of our work ended up unusable 50+ years
+into the future because it was permanently bound to the GPLv3 license.
+
+GPLv3
+-----
+
+The reason I use the GPLv3 license currently is because it is a balance between
+altruism and self-interest. The GPLv3 allows other vendors to sell my own code
+without sharing revenue with me, and indeed this has already happened. But the
+GPLv3 also prevents other vendors from improving upon bsnes without sharing
+their work with everyone else as I have.
+
+While I am actively developing bsnes, I do not wish to compete against myself.
+
+As such, I believe the GPLv3 is the best license during active development, and
+the ISC is the best license once bsnes is officially discontinued.
+
+Considerations
+--------------
+
+This is the part that should concern you as a contributor: I am not requesting
+contributed source code to be released under the ISC so that I personally may
+sell GPLv3 commercial license exemptions to your work, but in the future when
+bsnes is released under the ISC license, that will open the door for anyone to
+sell the work commercially in a closed source form.
+
+If this is not acceptable to you, I wholly understand and I welcome you to
+release your work under the GPLv3 in the form of a bsnes fork. And if your work
+is not an essential part of the core emulation -- that is to say, it may be
+optionally disabled -- then I am still willing to work with you in merging such
+work upstream anyway under the full GPLv3 license, but please reach out to me
+first before developing under the assumption your work will be merged upstream.
+
+Thank you very much for reading and hopefully for your understanding.

GPLv3.txt

@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.  We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors.  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+  To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights.  Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
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+freedoms that you received.  You must make sure that they, too, receive
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+know their rights.
+
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+(1) assert copyright on the software, and (2) offer you this License
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+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+  9. Acceptance Not Required for Having Copies.
+
+  You are not required to accept this License in order to receive or
+run a copy of the Program.  Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance.  However,
+nothing other than this License grants you permission to propagate or
+modify any covered work.  These actions infringe copyright if you do
+not accept this License.  Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
+
+  10. Automatic Licensing of Downstream Recipients.
+
+  Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License.  You are not responsible
+for enforcing compliance by third parties with this License.
+
+  An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
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+the predecessor has it or can get it with reasonable efforts.
+
+  You may not impose any further restrictions on the exercise of the
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+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+  11. Patents.
+
+  A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based.  The
+work thus licensed is called the contributor's "contributor version".
+
+  A contributor's "essential patent claims" are all patent claims
+owned or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
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+but do not include claims that would be infringed only as a
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+purposes of this definition, "control" includes the right to grant
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+  Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
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+  In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement).  To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+  If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients.  "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
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+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
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+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

LICENSE.txt

@@ -0,0 +1,43 @@
+----------------------------------------------------------------------
+bsnes - Super Nintendo emulator
+
+  Copyright © 2004-2019 byuu
+
+  https://byuu.org
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, specifically version 3 of the License
+and no other version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <https://www.gnu.org/licenses/>.
+----------------------------------------------------------------------
+
+----------------------------------------------------------------------
+libco - C cooperative threading library
+nall  - C++ template library
+ruby  - Hardware abstraction library
+hiro  - User interface library
+
+  Copyright © 2006-2019 byuu
+
+Permission to use, copy, modify, and/or distribute this software for
+any purpose with or without fee is hereby granted, provided that the
+above copyright notice and this permission notice appear in all
+copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE.
+----------------------------------------------------------------------

Makefile

@@ -1,109 +0,0 @@
-include nall/Makefile
-
-fc  := fc
-sfc := sfc
-gb  := gb
-gba := gba
-
-profile := accuracy
-target  := ethos
-
-# options += debugger
-# arch := x86
-# console := true
-
-# compiler
-flags   += -I. -O3 -fomit-frame-pointer
-link    +=
-objects := libco
-
-# profile-guided optimization mode
-# pgo := instrument
-# pgo := optimize
-
-ifeq ($(pgo),instrument)
-  flags += -fprofile-generate
-  link += -lgcov
-else ifeq ($(pgo),optimize)
-  flags += -fprofile-use
-endif
-
-# platform
-ifeq ($(platform),windows)
-  ifeq ($(arch),x86)
-    flags += -m32
-    link += -m32
-  endif
-  ifeq ($(console),true)
-    link += -mconsole
-  else
-    link += -mwindows
-  endif
-  link += -s -mthreads -luuid -lkernel32 -luser32 -lgdi32 -lcomctl32 -lcomdlg32 -lshell32 -lole32 -lws2_32
-  link += -Wl,-enable-auto-import -Wl,-enable-runtime-pseudo-reloc
-else ifeq ($(platform),macosx)
-  flags += -march=native
-else ifeq ($(platform),linux)
-  flags += -march=native
-  link += -s -Wl,-export-dynamic -lX11 -lXext -ldl
-else ifeq ($(platform),bsd)
-  flags += -march=native
-  link += -s -Wl,-export-dynamic -lX11 -lXext
-else
-  $(error unsupported platform.)
-endif
-
-ui := target-$(target)
-
-# implicit rules
-compile = \
-  $(strip \
-    $(if $(filter %.c,$<), \
-      $(compiler) $(cflags) $(flags) $1 -c $< -o $@, \
-      $(if $(filter %.cpp,$<), \
-        $(compiler) $(cppflags) $(flags) $1 -c $< -o $@ \
-      ) \
-    ) \
-  )
-
-%.o: $<; $(call compile)
-
-all: build;
-
-obj/libco.o: libco/libco.c libco/*
-
-include $(ui)/Makefile
-flags := $(flags) $(foreach o,$(call strupper,$(options)),-D$o)
-
-# targets
-clean:
-	-@$(call delete,obj/*.o)
-	-@$(call delete,obj/*.a)
-	-@$(call delete,obj/*.so)
-	-@$(call delete,obj/*.dylib)
-	-@$(call delete,obj/*.dll)
-	-@$(call delete,*.res)
-	-@$(call delete,*.manifest)
-
-archive:
-	if [ -f higan.tar.xz ]; then rm higan.tar.xz; fi
-	tar -cJf higan.tar.xz `ls`
-
-sync:
-ifeq ($(shell id -un),byuu)
-	if [ -d ./libco ]; then rm -r ./libco; fi
-	if [ -d ./nall ]; then rm -r ./nall; fi
-	if [ -d ./ruby ]; then rm -r ./ruby; fi
-	if [ -d ./phoenix ]; then rm -r ./phoenix; fi
-	cp -r ../libco ./libco
-	cp -r ../nall ./nall
-	cp -r ../ruby ./ruby
-	cp -r ../phoenix ./phoenix
-	rm -r libco/doc
-	rm -r libco/.test
-	rm -r nall/.test
-	rm -r ruby/.test
-	rm -r phoenix/.test
-endif
-
-help:;

README.md

@@ -0,0 +1,99 @@
+bsnes
+=====
+
+![bsnes logo © byuu](https://byuu.org/images/bsnes/github/byuu-bsnes-logo.png)
+
+bsnes is a multi-platform Super Nintendo (Super Famicom) emulator from
+[byuu](https://byuu.org) that focuses on performance, features, and ease of use.
+
+bsnes currently enjoys 100% known, bug-free compatibility with the entire SNES
+library when configured to its most accurate settings, giving it the same
+accuracy level as higan. Accuracy can also optionally be traded for performance,
+allowing bsnes to operate more than 300% faster than higan while still remaining
+almost as accurate.
+
+Development
+-----------
+
+Git is used for the development of new releases, and represents a staging
+environment. As bsnes is rather mature, things should generally be quite stable.
+However, bugs will exist, regressions will occur, so proceed at your own risk.
+
+If stability is required, please download the latest stable release from the
+[official website.](https://bsnes.byuu.org)
+
+Unique Features
+---------------
+
+  - 100% (known) bug-free compatibility with the entire officially licensed SNES games library
+  - True Super Game Boy emulation (using the SameBoy core by Lior Halphon)
+  - HD mode 7 graphics with optional supersampling (by DerKoun)
+  - Low-level emulation of all SNES coprocessors (DSP-n, ST-01n, Cx4)
+  - Multi-threaded PPU graphics renderer
+  - Speed mode settings which retain smooth audio output (50%, 75%, 100%, 150%, 200%)
+  - Built-in games database with thousands of game entries
+  - Built-in cheat code database for hundreds of popular games (by mightymo)
+  - Built-in save state manager with screenshot previews and naming capabilities
+  - Customizable per-byte game mappings to support any cartridges, including prototype games
+  - 7-zip decompression support
+  - Extensive Satellaview emulation, including BS Memory flash write and wear-leveling emulation
+  - Optional higan game folder support (standard game ROM files are also fully supported!)
+  - Advanced mapping system allowing multiple bindings to every emulated input
+
+Standard Features
+-----------------
+
+  - MSU1 support
+  - BPS and IPS soft-patching support
+  - Save states with undo and redo support (for reverting accidental saves and loads)
+  - OpenGL multi-pass pixel shaders
+  - Several built-in software filters, including HQ2x (by MaxSt) and snes_ntsc (by blargg)
+  - Adaptive sync and dynamic rate control for perfect audio/video synchronization
+  - Just-in-time input polling for minimal input latency
+  - Run-ahead support for removing internal game engine input latency
+  - Support for Direct3D exclusive mode video
+  - Support for WASAPI exclusive mode audio
+  - Periodic auto-saving of game saves
+  - Auto-saving of states when unloading games, and auto-resuming of states when reloading games
+  - Sprite limit disable support
+  - Cubic audio interpolation support
+  - Optional high-level emulation of most SNES coprocessors
+  - Optional emulation of flaws in older emulators for compatibility with older unofficial software
+  - CPU, SA1, and SuperFX overclocking support
+  - Frame advance support
+  - Screenshot support
+  - Cheat code search support
+  - Movie recording and playback support
+  - Rewind support
+  - HiDPI support
+  - Multi-monitor support
+  - Turbo support for controller inputs
+
+Links
+-----
+
+  - [Official website](https://byuu.org/bsnes)
+  - [Official git repository](https://github.com/byuu/bsnes)
+  - [Developer resources](https://byuu.net)
+  - [Donations](https://patreon.com/byuu)
+
+Release Builds
+--------------
+
+  - [Windows binaries](https://byuu.itch.io/bsnes)
+
+Nightly Builds
+--------------
+
+  - [Download](https://cirrus-ci.com/github/byuu/bsnes/master)
+  - ![Build status](https://api.cirrus-ci.com/github/byuu/bsnes.svg?task=windows-x86_64-binaries)
+  - ![Build status](https://api.cirrus-ci.com/github/byuu/bsnes.svg?task=macOS-x86_64-binaries)
+  - ![Build status](https://api.cirrus-ci.com/github/byuu/bsnes.svg?task=linux-x86_64-binaries)
+  - ![Build status](https://api.cirrus-ci.com/github/byuu/bsnes.svg?task=freebsd-x86_64-binaries)
+
+Preview
+-------
+
+![bsnes user interface © byuu](https://byuu.org/images/bsnes/github/byuu-bsnes-user-interface.png)
+![bsnes running Bahamut Lagoon © byuu](https://byuu.org/images/bsnes/github/byuu-bsnes-bahamut-lagoon.png)
+![bsnes running Tengai Makyou Zero © byuu](https://byuu.org/images/bsnes/github/byuu-bsnes-tengai-makyou-zero.png)

ananke/Makefile

@@ -1,49 +0,0 @@
-include ../nall/Makefile
-include ../phoenix/Makefile
-
-path := /usr/local/lib
-flags := $(flags) -O3 -fomit-frame-pointer -I..
-
-all:
-	$(compiler) $(cppflags) $(flags) -fPIC -o obj/ananke.o -c ananke.cpp
-ifeq ($(platform),windows)
-	$(compiler) $(phoenixflags) -fPIC -o obj/phoenix.o -c ../phoenix/phoenix.cpp
-	$(compiler) $(link) -shared -o phoenix.dll obj/phoenix.o $(phoenixlink)
-	$(compiler) $(link) -shared -o ananke.dll obj/ananke.o -L. -lphoenix
-else ifeq ($(platform),macosx)
-	$(compiler) $(link) -shared -dynamiclib -undefined suppress -flat_namespace -o libananke.dylib obj/ananke.o
-else
-	$(compiler) $(link) -shared -Wl,-soname,libananke.so.1 -o libananke.so obj/ananke.o
-endif
-
-resource: force
-	sourcery resource/resource.bml resource/resource.cpp resource/resource.hpp
-
-clean:
-	-@$(call delete,obj/*.o)
-	-@$(call delete,*.dll)
-	-@$(call delete,*.so)
-
-install: uninstall
-ifeq ($(platform),windows)
-else ifeq ($(platform),macosx)
-	if [ ! -d ~/Library/Application\ Support/ananke ]; then mkdir ~/Library/Application\ Support/ananke; fi
-	sudo cp libananke.dylib $(path)/libananke.1.dylib
-	sudo ln -s $(path)/libananke.1.dylib $(path)/libananke.dylib
-else
-	if [ ! -d ~/.config/ananke ]; then mkdir ~/.config/ananke; fi
-	sudo cp libananke.so $(path)/libananke.so.1
-	sudo ln -s $(path)/libananke.so.1 $(path)/libananke.so
-endif
-
-uninstall:
-ifeq ($(platform),windows)
-else ifeq ($(platform),macosx)
-	if [ -f $(path)/libananke.dylib ]; then sudo rm $(path)/libananke.dylib; fi
-	if [ -f $(path)/libananke.1.dylib ]; then sudo rm $(path)/libananke.1.dylib; fi
-else
-	if [ -f $(path)/libananke.so ]; then sudo rm $(path)/libananke.so; fi
-	if [ -f $(path)/libananke.so.1 ]; then sudo rm $(path)/libananke.so.1; fi
-endif
-
-force:

ananke/ananke.cpp

@@ -1,179 +0,0 @@
-#include <nall/nall.hpp>
-#include <nall/beat/patch.hpp>
-#include "heuristics/famicom.hpp"
-#include "heuristics/super-famicom.hpp"
-#include "heuristics/game-boy.hpp"
-#include "heuristics/game-boy-advance.hpp"
-using namespace nall;
-
-#include <phoenix/phoenix.hpp>
-using namespace phoenix;
-
-namespace Database {
-  #include "database/super-famicom.hpp"
-  #include "database/sufami-turbo.hpp"
-  #include "database/bsx-satellaview.hpp"
-};
-
-struct Ananke {
-  #include "configuration.cpp"
-  string libraryPath;
-
-  Ananke();
-
-  struct Information {
-    string path;      //path to selected file
-    string name;      //name of selected file (inside of archive if .zip)
-    string archive;   //pathname of archive
-    string manifest;  //manifest from successfully applied patch
-  } information;
-
-  //archive.cpp
-  vector<uint8_t> extractROM();
-  vector<uint8_t> extractFile(const string &filename);
-
-  //patch.cpp
-  void applyBeatPatch(vector<uint8_t> &buffer);
-
-  //famicom.cpp
-  void copyFamicomSaves(const string &pathname);
-  string createFamicomHeuristic(vector<uint8_t> &buffer);
-  string openFamicom(vector<uint8_t> &buffer);
-  string syncFamicom(const string &pathname);
-
-  //super-famicom.cpp
-  void copySuperFamicomSaves(const string &pathname);
-  string createSuperFamicomDatabase(vector<uint8_t> &buffer, Markup::Node &document, const string &manifest);
-  string createSuperFamicomHeuristic(vector<uint8_t> &buffer);
-  void createSuperFamicomHeuristicFirmware(vector<uint8_t> &buffer, const string &pathname, bool firmware_appended);
-  string openSuperFamicom(vector<uint8_t> &buffer);
-  string syncSuperFamicom(const string &pathname);
-
-  //sufami-turbo.cpp
-  void copySufamiTurboSaves(const string &pathname);
-  string createSufamiTurboDatabase(vector<uint8_t> &buffer, Markup::Node &document, const string &manifest);
-  string createSufamiTurboHeuristic(vector<uint8_t> &buffer);
-  string openSufamiTurbo(vector<uint8_t> &buffer);
-  string syncSufamiTurbo(const string &pathname);
-
-  //bsx-satellaview.cpp
-  string createBsxSatellaviewDatabase(vector<uint8_t> &buffer, Markup::Node &document, const string &manifest);
-  string createBsxSatellaviewHeuristic(vector<uint8_t> &buffer);
-  string openBsxSatellaview(vector<uint8_t> &buffer);
-  string syncBsxSatellaview(const string &pathname);
-
-  //game-boy.cpp
-  void copyGameBoySaves(const string &pathname);
-  string createGameBoyHeuristic(vector<uint8_t> &buffer);
-  string openGameBoy(vector<uint8_t> &buffer);
-  string syncGameBoy(const string &pathname);
-
-  //game-boy-advance.cpp
-  void copyGameBoyAdvanceSaves(const string &pathname);
-  string createGameBoyAdvanceHeuristic(vector<uint8_t> &buffer);
-  string openGameBoyAdvance(vector<uint8_t> &buffer);
-  string syncGameBoyAdvance(const string &pathname);
-
-  static bool supported(const string &filename);
-  string open(string filename = "");
-  string sync(string pathname);
-};
-
-#include "resource/resource.cpp"
-#include "file-dialog.cpp"
-#include "archive.cpp"
-#include "patch.cpp"
-#include "famicom.cpp"
-#include "super-famicom.cpp"
-#include "sufami-turbo.cpp"
-#include "bsx-satellaview.cpp"
-#include "game-boy.cpp"
-#include "game-boy-advance.cpp"
-
-FileDialog *fileDialog = nullptr;
-
-Ananke::Ananke() {
-  libraryPath = string::read({configpath(), "higan/library.bml"}).strip().ltrim<1>("Path: ").replace("\\", "/");
-  if(libraryPath.empty()) libraryPath = {userpath(), "Emulation/"};
-  if(libraryPath.endsWith("/") == false) libraryPath.append("/");
-}
-
-bool Ananke::supported(const string &filename) {
-  string extension = nall::extension(filename);
-
-  if(extension == "fc" ) return true;
-  if(extension == "nes") return true;
-  if(extension == "sfc") return true;
-  if(extension == "smc") return true;
-  if(extension == "st" ) return true;
-  if(extension == "bs" ) return true;
-  if(extension == "gb" ) return true;
-  if(extension == "gbc") return true;
-  if(extension == "gba") return true;
-  if(extension == "zip") return true;
-
-  return false;
-}
-
-string Ananke::open(string filename) {
-  if(filename.empty()) {
-    if(!fileDialog) {
-      fileDialog = new FileDialog;
-      fileDialog->setGeometry(config.geometry);
-    }
-    fileDialog->setPath(config.path);
-    filename = fileDialog->open();
-    config.geometry = fileDialog->geometry().text();
-  }
-
-  if(filename.empty()) return "";
-
-  information.path = dir(filename);
-  information.name = notdir(filename);
-  config.path = information.path;  //remember last used directory
-
-  vector<uint8_t> buffer;
-  if(filename.endsWith(".zip")) {
-    information.archive = filename;
-    buffer = extractROM();
-  } else {
-    buffer = file::read(filename);
-  }
-  if(buffer.size() == 0) return "";  //failed to read file
-
-  applyBeatPatch(buffer);
-
-  if(information.name.endsWith(".fc") || information.name.endsWith(".nes")) return openFamicom(buffer);
-  if(information.name.endsWith(".sfc") || information.name.endsWith(".smc")) return openSuperFamicom(buffer);
-  if(information.name.endsWith(".st")) return openSufamiTurbo(buffer);
-  if(information.name.endsWith(".bs")) return openBsxSatellaview(buffer);
-  if(information.name.endsWith(".gb") || information.name.endsWith(".gbc")) return openGameBoy(buffer);
-  if(information.name.endsWith(".gba")) return openGameBoyAdvance(buffer);
-  return "";
-}
-
-string Ananke::sync(string pathname) {
-  if(pathname.endsWith(".fc/")) return syncFamicom(pathname);
-  if(pathname.endsWith(".sfc/")) return syncSuperFamicom(pathname);
-  if(pathname.endsWith(".st/")) return syncSufamiTurbo(pathname);
-  if(pathname.endsWith(".bs/")) return syncBsxSatellaview(pathname);
-  if(pathname.endsWith(".gb/")) return syncGameBoy(pathname);
-  if(pathname.endsWith(".gbc/")) return syncGameBoy(pathname);
-  if(pathname.endsWith(".gba/")) return syncGameBoyAdvance(pathname);
-  return "";
-}
-
-extern "C" string ananke_browse(const string &filename) {
-  Ananke ananke;
-  return ananke.open();
-}
-
-extern "C" string ananke_open(const string &filename) {
-  Ananke ananke;
-  return ananke.open(filename);
-}
-
-extern "C" string ananke_sync(const string &pathname) {
-  Ananke ananke;
-  return ananke.sync(pathname);
-}

ananke/archive.cpp

@@ -1,29 +0,0 @@
-vector<uint8_t> Ananke::extractROM() {
-  unzip archive;
-  if(archive.open(information.archive)) {
-    for(auto& file : archive.file) {
-      if(file.name.endsWith(".fc")  || file.name.endsWith(".nes")
-      || file.name.endsWith(".sfc") || file.name.endsWith(".smc")
-      || file.name.endsWith(".st")  || file.name.endsWith(".bs")
-      || file.name.endsWith(".gb")  || file.name.endsWith(".gbc")
-      || file.name.endsWith(".gba")
-      ) {
-        information.name = notdir(file.name);
-        return archive.extract(file);
-      }
-    }
-  }
-  return vector<uint8_t>();
-}
-
-vector<uint8_t> Ananke::extractFile(const string& filename) {
-  unzip archive;
-  if(archive.open(information.archive)) {
-    for(auto& file : archive.file) {
-      if(notdir(file.name) == filename) {
-        return archive.extract(file);
-      }
-    }
-  }
-  return vector<uint8_t>();
-}

ananke/bsx-satellaview.cpp

@@ -1,72 +0,0 @@
-string Ananke::createBsxSatellaviewDatabase(vector<uint8_t> &buffer, Markup::Node &document, const string &manifest) {
-  string pathname = {
-    libraryPath, "BS-X Satellaview/",
-    document["release/information/name"].text(),
-    " (", document["release/information/region"].text(), ")",
-    " (", document["release/information/revision"].text(), ")",
-    ".bs/"
-  };
-  directory::create(pathname);
-
-  //strip "release" root node from database entry (since a single game manifest isn't part of a database)
-  string markup = manifest;
-  markup.replace("\n  ", "\n");
-  markup.replace("information", "\ninformation");
-  markup.ltrim<1>("release\n");
-
-  file::write({pathname, "manifest.bml"}, markup);
-  file::write({pathname, "program.rom"}, buffer);
-
-  return pathname;
-}
-
-string Ananke::createBsxSatellaviewHeuristic(vector<uint8_t> &buffer) {
-  string pathname = {
-    libraryPath, "BS-X Satellaview/",
-    nall::basename(information.name),
-    ".bs/"
-  };
-  directory::create(pathname);
-
-  file::write({pathname, "manifest.bml"}, {
-    "unverified\n",
-    "\n",
-    "cartridge\n",
-    "  rom name=program.rom size=0x", hex(buffer.size()), " type=FlashROM\n",
-    "\n",
-    "information\n",
-    "  title: ", nall::basename(information.name), "\n"
-  });
-  file::write({pathname, "program.rom"}, buffer);
-
-  return pathname;
-}
-
-string Ananke::openBsxSatellaview(vector<uint8_t> &buffer) {
-  string sha256 = nall::sha256(buffer.data(), buffer.size());
-
-  string databaseText = string::read({configpath(), "ananke/database/BS-X Satellaview.bml"}).strip();
-  if(databaseText.empty()) databaseText = string{Database::BsxSatellaview}.strip();
-  lstring databaseItem = databaseText.split("\n\n");
-
-  for(auto &item : databaseItem) {
-    item.append("\n");
-    auto document = Markup::Document(item);
-
-    if(document["release/information/sha256"].text() == sha256) {
-      return createBsxSatellaviewDatabase(buffer, document, item);
-    }
-  }
-
-  return createBsxSatellaviewHeuristic(buffer);
-}
-
-string Ananke::syncBsxSatellaview(const string &pathname) {
-  auto buffer = file::read({pathname, "program.rom"});
-  if(buffer.size() == 0) return "";
-
-  directory::remove(pathname);
-  information.path = pathname;
-  information.name = notdir(string{pathname}.rtrim<1>("/"));
-  return openBsxSatellaview(buffer);
-}

ananke/configuration.cpp

@@ -1,17 +0,0 @@
-struct Settings : Configuration::Document {
-  string path;
-  string geometry;
-
-  Settings() {
-    Configuration::Node node;
-    node.append(path = userpath(), "Path");
-    node.append(geometry = "64,64,480,600", "Geometry");
-    append(node, "Settings");
-    directory::create({configpath(), "ananke/"});
-    load({configpath(), "ananke/settings.bml"});
-  }
-
-  ~Settings() {
-    save({configpath(), "ananke/settings.bml"});
-  }
-} config;

ananke/database/bsx-satellaview.hpp

@@ -1,19 +0,0 @@
-string BsxSatellaview = R"(
-
-database revision=2013-01-22
-
-release
-  cartridge
-    rom name=program.rom size=0x80000 type=MaskROM
-  information
-    title:    鮫亀 キャラカセット
-    name:     Same Game - Character Cassette
-    region:   JP
-    revision: 1.0
-    board:    BSMC-CR-01
-    serial:   BSMC-ZS5J-JPN
-    sha256:   80c34b50817d58820bc8c88d2d9fa462550b4a76372e19c6467cbfbc8cf5d9ef
-    configuration
-      rom name=program.rom size=0x80000 type=MaskROM
-
-)";

ananke/database/sufami-turbo.hpp

@@ -1,162 +0,0 @@
-string SufamiTurbo = R"(
-
-database revision=2013-01-22
-
-release
-  cartridge linkable
-    rom name=program.rom size=0x80000
-    ram name=save.ram size=0x800
-  information
-    title:    SDウルトラバトル ウルトラマン伝説
-    name:     SD Ultra Battle - Ultraman Densetsu
-    region:   JP
-    revision: 1.0
-    serial:   SFT-0101-JPN
-    sha256:   2bb55214fb668ca603d7b944b14f105dfb10b987a8902d420fe4ae1cb69c1d4a
-    configuration
-      rom name=program.rom size=0x80000
-      ram name=save.ram size=0x800
-      linkable
-
-release
-  cartridge linkable
-    rom name=program.rom size=0x80000
-    ram name=save.ram size=0x800
-  information
-    title:    SDウルトラバトル セブン伝説
-    name:     SD Ultra Battle - Seven Densetsu
-    region:   JP
-    revision: 1.0
-    serial:   SFT-0102-JPN
-    sha256:   2fec5f2bc7dee010af10569a3d2bc18715a79a126940800c3eade5abbd625e3f
-    configuration
-      rom name=program.rom size=0x80000
-      ram name=save.ram size=0x800
-      linkable
-
-release
-  cartridge linkable
-    rom name=program.rom size=0x80000
-    ram name=save.ram size=0x800
-  information
-    title:    ポイポイ忍者ワールド
-    name:     Poi Poi Ninja World
-    region:   JP
-    revision: 1.0
-    serial:   SFT-0103-JPN
-    sha256:   602b20b788640f5743487108a10f3f77bca5ce2d24208b25b1ca498a96eb0d69
-    configuration
-      rom name=program.rom size=0x80000
-      ram name=save.ram size=0x800
-      linkable
-
-release
-  cartridge linkable
-    rom name=program.rom size=0x80000
-    ram name=save.ram size=0x2000
-  information
-    title:    SDガンダムジェネレーション 一年戦争記
-    name:     SD Gundam Generation - Ichinen Sensouki
-    region:   JP
-    revision: 1.0
-    serial:   SFT-0104-JPN
-    sha256:   3e82215bed08274874b30d461fc4a965c6bca932229da5d46d56e36f484d65eb
-    configuration
-      rom name=program.rom size=0x80000
-      ram name=save.ram size=0x2000
-      linkable
-
-release
-  cartridge linkable
-    rom name=program.rom size=0x80000
-    ram name=save.ram size=0x2000
-  information
-    title:    SDガンダムジェネレーション グリプス戦記
-    name:     SD Gundam Generation - Grips Senki
-    region:   JP
-    revision: 1.0
-    serial:   SFT-0105-JPN
-    sha256:   8547a08ed11fe408eac282a90ac46654bd2e5f49bda3aec8e5edf166a0a4b9af
-    configuration
-      rom name=program.rom size=0x80000
-      ram name=save.ram size=0x2000
-      linkable
-
-release
-  cartridge
-    rom name=program.rom size=0x80000
-  information
-    title:    ゲゲゲの鬼太郎 妖怪ドンジャラ
-    name:     Gegege no Kitarou - Youkai Donjara
-    region:   JP
-    revision: 1.0
-    serial:   SFT-0106-JPN
-    sha256:   d93b3a570e7cf343f680ab0768a50b77e3577f9c555007e2de3decd6bc4765c8
-    configuration
-      rom name=program.rom size=0x80000
-
-release
-  cartridge linkable
-    rom name=program.rom size=0x80000
-    ram name=save.ram size=0x2000
-  information
-    title:    SDガンダムジェネレーション アクシズ戦記
-    name:     SD Gundam Generation - Axis Senki
-    region:   JP
-    revision: 1.0
-    serial:   SFT-0107-JPN
-    sha256:   2a9d7c9a61318861028a73ca03e32a48cff162d76cba36fbaab8690b212efe9b
-    configuration
-      rom name=program.rom size=0x80000
-      ram name=save.ram size=0x2000
-      linkable
-
-release
-  cartridge linkable
-    rom name=program.rom size=0x80000
-    ram name=save.ram size=0x2000
-  information
-    title:    SDガンダムジェネレーション バビロニア建国戦記
-    name:     SD Gundam Generation - Babylonia Kenkoku Senki
-    region:   JP
-    revision: 1.0
-    serial:   SFT-0108-JPN
-    sha256:   60ac017c18f534e8cf24ca7f38e22ce92db95ea6c30b2d59d76f13c4f1c8a6e4
-    configuration
-      rom name=program.rom size=0x80000
-      ram name=save.ram size=0x2000
-      linkable
-
-release
-  cartridge linkable
-    rom name=program.rom size=0x80000
-    ram name=save.ram size=0x2000
-  information
-    title:    SDガンダムジェネレーション ザンスカール戦記
-    name:     SD Gundam Generation - Zanscar Senki
-    region:   JP
-    revision: 1.0
-    serial:   SFT-0110-JPN
-    sha256:   5951a58a91d8e397d0a237ccc2b1248e17c7312cb9cc11cbc350200a97b4e021
-    configuration
-      rom name=program.rom size=0x80000
-      ram name=save.ram size=0x2000
-      linkable
-
-release
-  cartridge linkable
-    rom name=program.rom size=0x80000
-    ram name=save.ram size=0x800
-  information
-    title:    SDガンダムジェネレーション コロニー格闘記
-    name:     SD Gundam Generation - Colony Kakutouki
-    region:   JP
-    revision: 1.0
-    serial:   SFT-0111-JPN
-    sha256:   e639b5d5d722432b6809ccc6801dc584e1a3016379f34b335ed2dfa73b1ebf69
-    configuration
-      rom name=program.rom size=0x80000
-      ram name=save.ram size=0x800
-      linkable
-
-)";

ananke/famicom.cpp

@@ -1,39 +0,0 @@
-void Ananke::copyFamicomSaves(const string &pathname) {
-  if(!file::exists({pathname, "save.ram"})) {
-    if(file::exists({information.path, nall::basename(information.name), ".sav"})) {
-      file::copy({information.path, nall::basename(information.name), ".srm"}, {pathname, "save.ram"});
-    }
-  }
-}
-
-string Ananke::createFamicomHeuristic(vector<uint8_t> &buffer) {
-  string pathname = {
-    libraryPath, "Famicom/",
-    nall::basename(information.name),
-    ".fc/"
-  };
-  directory::create(pathname);
-
-  FamicomCartridge info(buffer.data(), buffer.size());
-  string markup = {"unverified\n\n", info.markup};
-  markup.append("\ninformation\n  title: ", nall::basename(information.name), "\n");
-  if(!information.manifest.empty()) markup = information.manifest;  //override with embedded beat manifest, if one exists
-
-  file::write({pathname, "manifest.bml"}, markup);
-  file::write({pathname, "program.rom"}, buffer.data() + 16, info.prgrom);
-  if(info.chrrom > 0) file::write({pathname, "character.rom"}, buffer.data() + 16 + info.prgrom, info.chrrom);
-
-  copyFamicomSaves(pathname);
-  return pathname;
-}
-
-string Ananke::openFamicom(vector<uint8_t> &buffer) {
-  return createFamicomHeuristic(buffer);
-}
-
-//this currently cannot work:
-//game folders discard iNES header required for heuristic detection
-//a games database of all commercial Famicom software will be required
-string Ananke::syncFamicom(const string &pathname) {
-  return "";
-}

ananke/file-dialog.cpp

@@ -1,106 +0,0 @@
-struct FileDialog : Window {
-  VerticalLayout layout;
-    HorizontalLayout pathLayout;
-      LineEdit pathEdit;
-      Button homeButton;
-      Button upButton;
-    ListView fileList;
-    HorizontalLayout controlLayout;
-      Label filterLabel;
-      Button openButton;
-
-  string open() {
-    setVisible();
-    fileList.setFocused();
-    filename = "";
-
-    setModal();
-    return filename;
-  }
-
-  void setPath(const string &path) {
-    pathname = string{path}.transform("\\", "/");
-    if(pathname.empty()) pathname = userpath();
-    if(pathname.endsWith("/") == false) pathname.append("/");
-    pathEdit.setText(pathname);
-
-    fileList.reset();
-    filenameList.reset();
-
-    lstring folders = directory::ifolders(pathname);
-    for(auto &folder : folders) {
-      fileList.append(string{folder}.rtrim<1>("/"));
-      fileList.setImage(filenameList.size(), 0, {resource::folder, sizeof resource::folder});
-      filenameList.append({pathname, folder});
-    }
-
-    lstring files = directory::ifiles(pathname);
-    for(auto &file : files) {
-      if(Ananke::supported(file) == false) continue;  //ignore unsupported extensions
-      fileList.append(file);
-      if(extension(file) == "zip") {
-        fileList.setImage(filenameList.size(), 0, {resource::archive, sizeof resource::archive});
-      } else {
-        fileList.setImage(filenameList.size(), 0, {resource::file, sizeof resource::file});
-      }
-      filenameList.append({pathname, file});
-    }
-
-    fileList.setSelection(0);
-    fileList.setSelected();
-    fileList.setFocused();
-  }
-
-  FileDialog() {
-    setTitle("Load Image");
-
-    layout.setMargin(5);
-    homeButton.setImage({resource::home, sizeof resource::home});
-    upButton.setImage({resource::up, sizeof resource::up});
-    filterLabel.setText("Filter: *.fc, *.sfc, *.st, *.bs, *.gb, *.gbc, *.gba, *.nes, *.smc, *.zip");
-    openButton.setText("Open");
-
-    append(layout);
-    layout.append(pathLayout, {~0, 0}, 5);
-      pathLayout.append(pathEdit, {~0, 0}, 5);
-      pathLayout.append(homeButton, {28, 28}, 5);
-      pathLayout.append(upButton, {28, 28});
-    layout.append(fileList, {~0, ~0}, 5);
-    layout.append(controlLayout, {~0, 0});
-      controlLayout.append(filterLabel, {~0, 0}, 5);
-      controlLayout.append(openButton, {80, 0});
-
-    pathEdit.onActivate = [&] {
-      string path = pathEdit.text();
-      setPath(path);
-    };
-
-    homeButton.onActivate = [&] {
-      setPath(userpath());
-    };
-
-    upButton.onActivate = [&] {
-      setPath(parentdir(pathname));
-    };
-
-    fileList.onActivate = openButton.onActivate = [&] {
-      if(fileList.selected() == false) return;
-      string name = filenameList(fileList.selection());
-      if(name.empty()) return;
-
-      if(name.endsWith("/")) return setPath(name);
-      filename = name;
-      onClose();
-    };
-
-    onClose = [&] {
-      setModal(false);
-      setVisible(false);
-    };
-  }
-
-private:
-  string pathname;
-  string filename;
-  lstring filenameList;
-};

ananke/game-boy-advance.cpp

@@ -1,58 +0,0 @@
-void Ananke::copyGameBoyAdvanceSaves(const string &pathname) {
-  if(!file::exists({pathname, "save.ram"})) {
-    if(file::exists({information.path, nall::basename(information.name), ".sav"})) {
-      file::copy({information.path, nall::basename(information.name), ".sav"}, {pathname, "save.ram"});
-    }
-  }
-
-  if(!file::exists({pathname, "rtc.ram"})) {
-    if(file::exists({information.path, nall::basename(information.name), ".rtc"})) {
-      file::copy({information.path, nall::basename(information.name), ".rtc"}, {pathname, "rtc.ram"});
-    }
-  }
-}
-
-string Ananke::createGameBoyAdvanceHeuristic(vector<uint8_t> &buffer) {
-  string pathname = {
-    libraryPath, "Game Boy Advance/",
-    nall::basename(information.name),
-    ".gba/"
-  };
-  directory::create(pathname);
-
-  GameBoyAdvanceCartridge info(buffer.data(), buffer.size());
-  string markup = {"unverified\n\n", info.markup};
-  markup.append("\ninformation\n  title: ", nall::basename(information.name), "\n");
-  if(!information.manifest.empty()) markup = information.manifest;  //override with embedded beat manifest, if one exists
-
-  file::write({pathname, "manifest.bml"}, markup);
-  file::write({pathname, "program.rom"}, buffer);
-
-  copyGameBoyAdvanceSaves(pathname);
-  return pathname;
-}
-
-string Ananke::openGameBoyAdvance(vector<uint8_t> &buffer) {
-  return createGameBoyAdvanceHeuristic(buffer);
-}
-
-string Ananke::syncGameBoyAdvance(const string &pathname) {
-  auto buffer = file::read({pathname, "program.rom"});
-  if(buffer.size() == 0) return "";
-
-  auto save = file::read({pathname, "save.ram"});
-  if(save.size() == 0) save = file::read({pathname, "save.rwm"});
-
-  auto rtc = file::read({pathname, "rtc.ram"});
-  if(rtc.size() == 0) rtc = file::read({pathname, "rtc.rwm"});
-
-  directory::remove(pathname);
-  information.path = pathname;
-  information.name = notdir(string{pathname}.rtrim<1>("/"));
-  string outputPath = openGameBoyAdvance(buffer);
-
-  if(save.size()) file::write({outputPath, "save.ram"}, save);
-  if(rtc.size()) file::write({outputPath, "rtc.ram"}, rtc);
-
-  return outputPath;
-}

ananke/game-boy.cpp

@@ -1,59 +0,0 @@
-void Ananke::copyGameBoySaves(const string &pathname) {
-  if(!file::exists({pathname, "save.ram"})) {
-    if(file::exists({information.path, nall::basename(information.name), ".sav"})) {
-      file::copy({information.path, nall::basename(information.name), ".sav"}, {pathname, "save.ram"});
-    }
-  }
-
-  if(!file::exists({pathname, "rtc.ram"})) {
-    if(file::exists({information.path, nall::basename(information.name), ".rtc"})) {
-      file::copy({information.path, nall::basename(information.name), ".rtc"}, {pathname, "rtc.ram"});
-    }
-  }
-}
-
-string Ananke::createGameBoyHeuristic(vector<uint8_t> &buffer) {
-  GameBoyCartridge info(buffer.data(), buffer.size());
-
-  string pathname = {
-    libraryPath, "Game Boy", (info.info.cgb ? " Color" : ""), "/",
-    nall::basename(information.name),
-    ".", (info.info.cgb ? "gbc" : "gb"), "/"
-  };
-  directory::create(pathname);
-
-  string markup = {"unverified\n\n", info.markup};
-  markup.append("\ninformation\n  title: ", nall::basename(information.name), "\n");
-  if(!information.manifest.empty()) markup = information.manifest;  //override with embedded beat manifest, if one exists
-
-  file::write({pathname, "manifest.bml"}, markup);
-  file::write({pathname, "program.rom"}, buffer);
-
-  copyGameBoySaves(pathname);
-  return pathname;
-}
-
-string Ananke::openGameBoy(vector<uint8_t> &buffer) {
-  return createGameBoyHeuristic(buffer);
-}
-
-string Ananke::syncGameBoy(const string &pathname) {
-  auto buffer = file::read({pathname, "program.rom"});
-  if(buffer.size() == 0) return "";
-
-  auto save = file::read({pathname, "save.ram"});
-  if(save.size() == 0) save = file::read({pathname, "save.rwm"});
-
-  auto rtc = file::read({pathname, "rtc.ram"});
-  if(rtc.size() == 0) rtc = file::read({pathname, "rtc.rwm"});
-
-  directory::remove(pathname);
-  information.path = pathname;
-  information.name = notdir(string{pathname}.rtrim<1>("/"));
-  string outputPath = openGameBoy(buffer);
-
-  if(save.size()) file::write({outputPath, "save.ram"}, save);
-  if(rtc.size()) file::write({outputPath, "rtc.ram"}, rtc);
-
-  return outputPath;
-}

ananke/heuristics/famicom.hpp

@@ -1,173 +0,0 @@
-#ifndef NALL_EMULATION_FAMICOM_HPP
-#define NALL_EMULATION_FAMICOM_HPP
-
-#include <nall/sha256.hpp>
-#include <nall/string.hpp>
-
-namespace nall {
-
-struct FamicomCartridge {
-  string markup;
-  inline FamicomCartridge(const uint8_t *data, unsigned size);
-
-//private:
-  unsigned mapper;
-  unsigned mirror;
-  unsigned prgrom;
-  unsigned prgram;
-  unsigned chrrom;
-  unsigned chrram;
-};
-
-FamicomCartridge::FamicomCartridge(const uint8_t *data, unsigned size) {
-  markup = "";
-  if(size < 16) return;
-  if(data[0] != 'N') return;
-  if(data[1] != 'E') return;
-  if(data[2] != 'S') return;
-  if(data[3] !=  26) return;
-
-  mapper = ((data[7] >> 4) << 4) | (data[6] >> 4);
-  mirror = ((data[6] & 0x08) >> 2) | (data[6] & 0x01);
-  prgrom = data[4] * 0x4000;
-  chrrom = data[5] * 0x2000;
-  prgram = 0u;
-  chrram = chrrom == 0u ? 8192u : 0u;
-
-  markup.append("cartridge\n");
-
-  switch(mapper) {
-  default:
-    markup.append("  board type=NES-NROM-256\n");
-    markup.append("  mirror mode=", mirror == 0 ? "horizontal" : "vertical", "\n");
-    break;
-
-  case   1:
-    markup.append("  board type=NES-SXROM\n");
-    markup.append("  chip type=MMC1B2\n");
-    prgram = 8192;
-    break;
-
-  case   2:
-    markup.append("  board type=NES-UOROM\n");
-    markup.append("  mirror mode=", mirror == 0 ? "horizontal" : "vertical", "\n");
-    break;
-
-  case   3:
-    markup.append("  board type=NES-CNROM\n");
-    markup.append("  mirror mode=", mirror == 0 ? "horizontal" : "vertical", "\n");
-    break;
-
-  case   4:
-    //MMC3
-    markup.append("  board type=NES-TLROM\n");
-    markup.append("  chip type=MMC3B\n");
-    prgram = 8192;
-    //MMC6
-  //markup.append("  board type=NES-HKROM\n");
-  //markup.append("  chip type=MMC6n");
-  //prgram = 1024;
-    break;
-
-  case   5:
-    markup.append("  board type=NES-ELROM\n");
-    markup.append("  chip type=MMC5\n");
-    prgram = 65536;
-    break;
-
-  case   7:
-    markup.append("  board type=NES-AOROM\n");
-    break;
-
-  case   9:
-    markup.append("  board type=NES-PNROM\n");
-    markup.append("  chip type=MMC2\n");
-    prgram = 8192;
-    break;
-
-  case  10:
-    markup.append("  board type=NES-FKROM\n");
-    markup.append("  chip type=MMC4\n");
-    prgram = 8192;
-    break;
-
-  case  16:
-    markup.append("  board type=BANDAI-FCG\n");
-    markup.append("  chip type=LZ93D50\n");
-    break;
-
-  case  21:
-  case  23:
-  case  25:
-    //VRC4
-    markup.append("  board type=KONAMI-VRC-4\n");
-    markup.append("  chip type=VRC4\n");
-    markup.append("    pinout a0=1 a1=0\n");
-    prgram = 8192;
-    break;
-
-  case  22:
-    //VRC2
-    markup.append("  board type=KONAMI-VRC-2\n");
-    markup.append("  chip type=VRC2\n");
-    markup.append("    pinout a0=0 a1=1\n");
-    break;
-
-  case  24:
-    markup.append("  board type=KONAMI-VRC-6\n");
-    markup.append("  chip type=VRC6\n");
-    break;
-
-  case  26:
-    markup.append("  board type=KONAMI-VRC-6\n");
-    markup.append("  chip type=VRC6\n");
-    prgram = 8192;
-    break;
-
-  case  34:
-    markup.append("  board type=NES-BNROM\n");
-    markup.append("  mirror mode=", mirror == 0 ? "horizontal" : "vertical", "\n");
-    break;
-
-  case  66:
-    markup.append("  board type=NES-GNROM\n");
-    markup.append("  mirror mode=", mirror == 0 ? "horizontal" : "vertical", "\n");
-    break;
-
-  case  69:
-    markup.append("  board type=SUNSOFT-5B\n");
-    markup.append("  chip type=5B\n");
-    prgram = 8192;
-    break;
-
-  case  73:
-    markup.append("  board type=KONAMI-VRC-3\n");
-    markup.append("  chip type=VRC3\n");
-    markup.append("  mirror mode=", mirror == 0 ? "horizontal" : "vertical", "\n");
-    prgram = 8192;
-    break;
-
-  case  75:
-    markup.append("  board type=KONAMI-VRC-1\n");
-    markup.append("  chip type=VRC1\n");
-    break;
-
-  case  85:
-    markup.append("  board type=KONAMI-VRC-7\n");
-    markup.append("  chip type=VRC7\n");
-    prgram = 8192;
-    break;
-  }
-
-  markup.append("  prg\n");
-  if(prgrom) markup.append("    rom name=program.rom size=0x", hex(prgrom), "\n");
-  if(prgram) markup.append("    ram name=save.ram size=0x", hex(prgram), "\n");
-
-  markup.append("  chr\n");
-  if(chrrom) markup.append("    rom name=character.rom size=0x", hex(chrrom), "\n");
-  if(chrram) markup.append("    ram size=0x", hex(chrram), "\n");
-}
-
-}
-
-#endif

ananke/heuristics/game-boy-advance.hpp

@@ -1,63 +0,0 @@
-#ifndef NALL_EMULATION_GAME_BOY_ADVANCE_HPP
-#define NALL_EMULATION_GAME_BOY_ADVANCE_HPP
-
-#include <nall/sha256.hpp>
-#include <nall/string.hpp>
-#include <nall/vector.hpp>
-
-namespace nall {
-
-struct GameBoyAdvanceCartridge {
-  string markup;
-  string identifiers;
-  inline GameBoyAdvanceCartridge(const uint8_t *data, unsigned size);
-};
-
-GameBoyAdvanceCartridge::GameBoyAdvanceCartridge(const uint8_t *data, unsigned size) {
-  struct Identifier {
-    string name;
-    unsigned size;
-  };
-  vector<Identifier> idlist;
-  idlist.append({"SRAM_V",      6});
-  idlist.append({"SRAM_F_V",    8});
-  idlist.append({"EEPROM_V",    8});
-  idlist.append({"FLASH_V",     7});
-  idlist.append({"FLASH512_V", 10});
-  idlist.append({"FLASH1M_V",   9});
-
-  lstring list;
-  for(auto &id : idlist) {
-    for(signed n = 0; n < size - 16; n++) {
-      if(!memcmp(data + n, (const char*)id.name, id.size)) {
-        const char *p = (const char*)data + n + id.size;
-        if(p[0] >= '0' && p[0] <= '9'
-        && p[1] >= '0' && p[1] <= '9'
-        && p[2] >= '0' && p[2] <= '9'
-        ) {
-          char text[16];
-          memcpy(text, data + n, id.size + 3);
-          text[id.size + 3] = 0;
-          list.appendOnce(text);
-        }
-      }
-    }
-  }
-  identifiers = list.merge(",");
-
-  markup = "";
-  markup.append("cartridge\n");
-  markup.append("  rom name=program.rom size=0x", hex(size), "\n");
-  if(0);
-  else if(identifiers.beginsWith("SRAM_V"    )) markup.append("  ram name=save.ram type=SRAM size=0x8000\n");
-  else if(identifiers.beginsWith("SRAM_F_V"  )) markup.append("  ram name=save.ram type=FRAM size=0x8000\n");
-  else if(identifiers.beginsWith("EEPROM_V"  )) markup.append("  ram name=save.ram type=EEPROM size=0x0\n");
-  else if(identifiers.beginsWith("FLASH_V"   )) markup.append("  ram name=save.ram type=FlashROM size=0x10000\n");
-  else if(identifiers.beginsWith("FLASH512_V")) markup.append("  ram name=save.ram type=FlashROM size=0x10000\n");
-  else if(identifiers.beginsWith("FLASH1M_V" )) markup.append("  ram name=save.ram type=FlashROM size=0x20000\n");
-//if(identifiers.empty() == false) markup.append("  #detected: ", identifiers, "\n");
-}
-
-}
-
-#endif

ananke/heuristics/game-boy.hpp

@@ -1,120 +0,0 @@
-#ifndef NALL_EMULATION_GAME_BOY_HPP
-#define NALL_EMULATION_GAME_BOY_HPP
-
-#include <nall/sha256.hpp>
-#include <nall/string.hpp>
-
-namespace nall {
-
-struct GameBoyCartridge {
-  string markup;
-  inline GameBoyCartridge(uint8_t *data, unsigned size);
-
-//private:
-  struct Information {
-    string mapper;
-    bool ram;
-    bool battery;
-    bool rtc;
-    bool rumble;
-
-    unsigned romsize;
-    unsigned ramsize;
-
-    bool cgb;
-    bool cgbonly;
-  } info;
-};
-
-GameBoyCartridge::GameBoyCartridge(uint8_t *romdata, unsigned romsize) {
-  markup = "";
-  if(romsize < 0x4000) return;
-
-  info.mapper = "unknown";
-  info.ram = false;
-  info.battery = false;
-  info.rtc = false;
-  info.rumble = false;
-
-  info.romsize = 0;
-  info.ramsize = 0;
-
-  unsigned base = romsize - 0x8000;
-  if(romdata[base + 0x0104] == 0xce && romdata[base + 0x0105] == 0xed
-  && romdata[base + 0x0106] == 0x66 && romdata[base + 0x0107] == 0x66
-  && romdata[base + 0x0108] == 0xcc && romdata[base + 0x0109] == 0x0d
-  && romdata[base + 0x0147] >= 0x0b && romdata[base + 0x0147] <= 0x0d
-  ) {
-    //MMM01 stores header at bottom of image
-    //flip this around for consistency with all other mappers
-    uint8_t header[0x8000];
-    memcpy(header, romdata + base, 0x8000);
-    memmove(romdata + 0x8000, romdata, romsize - 0x8000);
-    memcpy(romdata, header, 0x8000);
-  }
-
-  info.cgb     = (romdata[0x0143] & 0x80) == 0x80;
-  info.cgbonly = (romdata[0x0143] & 0xc0) == 0xc0;
-
-  switch(romdata[0x0147]) {
-    case 0x00: info.mapper = "none";  break;
-    case 0x01: info.mapper = "MBC1";  break;
-    case 0x02: info.mapper = "MBC1";  info.ram = true; break;
-    case 0x03: info.mapper = "MBC1";  info.ram = true; info.battery = true; break;
-    case 0x05: info.mapper = "MBC2";  info.ram = true; break;
-    case 0x06: info.mapper = "MBC2";  info.ram = true; info.battery = true; break;
-    case 0x08: info.mapper = "none";  info.ram = true; break;
-    case 0x09: info.mapper = "MBC0";  info.ram = true; info.battery = true; break;
-    case 0x0b: info.mapper = "MMM01"; break;
-    case 0x0c: info.mapper = "MMM01"; info.ram = true; break;
-    case 0x0d: info.mapper = "MMM01"; info.ram = true; info.battery = true; break;
-    case 0x0f: info.mapper = "MBC3";  info.rtc = true; info.battery = true; break;
-    case 0x10: info.mapper = "MBC3";  info.rtc = true; info.ram = true; info.battery = true; break;
-    case 0x11: info.mapper = "MBC3";  break;
-    case 0x12: info.mapper = "MBC3";  info.ram = true; break;
-    case 0x13: info.mapper = "MBC3";  info.ram = true; info.battery = true; break;
-    case 0x19: info.mapper = "MBC5";  break;
-    case 0x1a: info.mapper = "MBC5";  info.ram = true; break;
-    case 0x1b: info.mapper = "MBC5";  info.ram = true; info.battery = true; break;
-    case 0x1c: info.mapper = "MBC5";  info.rumble = true; break;
-    case 0x1d: info.mapper = "MBC5";  info.rumble = true; info.ram = true; break;
-    case 0x1e: info.mapper = "MBC5";  info.rumble = true; info.ram = true; info.battery = true; break;
-    case 0xfc: break;  //Pocket Camera
-    case 0xfd: break;  //Bandai TAMA5
-    case 0xfe: info.mapper = "HuC3";  break;
-    case 0xff: info.mapper = "HuC1";  info.ram = true; info.battery = true; break;
-  }
-
-  switch(romdata[0x0148]) { default:
-    case 0x00: info.romsize =   2 * 16 * 1024; break;
-    case 0x01: info.romsize =   4 * 16 * 1024; break;
-    case 0x02: info.romsize =   8 * 16 * 1024; break;
-    case 0x03: info.romsize =  16 * 16 * 1024; break;
-    case 0x04: info.romsize =  32 * 16 * 1024; break;
-    case 0x05: info.romsize =  64 * 16 * 1024; break;
-    case 0x06: info.romsize = 128 * 16 * 1024; break;
-    case 0x07: info.romsize = 256 * 16 * 1024; break;
-    case 0x52: info.romsize =  72 * 16 * 1024; break;
-    case 0x53: info.romsize =  80 * 16 * 1024; break;
-    case 0x54: info.romsize =  96 * 16 * 1024; break;
-  }
-
-  switch(romdata[0x0149]) { default:
-    case 0x00: info.ramsize =  0 * 1024; break;
-    case 0x01: info.ramsize =  2 * 1024; break;
-    case 0x02: info.ramsize =  8 * 1024; break;
-    case 0x03: info.ramsize = 32 * 1024; break;
-  }
-
-  if(info.mapper == "MBC2") info.ramsize = 512;  //512 x 4-bit
-
-  markup = "";
-  markup.append("cartridge\n");
-  markup.append("  board type=", info.mapper, "\n");
-  markup.append("  rom name=program.rom size=0x", hex(romsize), "\n");
-  if(info.ramsize > 0) markup.append("  ram name=save.ram size=0x", hex(info.ramsize), "\n");
-}
-
-}
-
-#endif

ananke/heuristics/satellaview.hpp

@@ -1,23 +0,0 @@
-#ifndef NALL_EMULATION_SATELLAVIEW_HPP
-#define NALL_EMULATION_SATELLAVIEW_HPP
-
-#include <nall/sha256.hpp>
-#include <nall/string.hpp>
-
-namespace nall {
-
-struct SatellaviewCartridge {
-  string markup;
-  inline SatellaviewCartridge(const uint8_t *data, unsigned size);
-};
-
-SatellaviewCartridge::SatellaviewCartridge(const uint8_t *data, unsigned size) {
-  markup = "";
-
-  markup.append("cartridge\n");
-  markup.append("  rom name=program.rom size=0x", hex(size), " type=FlashROM\n");
-}
-
-}
-
-#endif

ananke/heuristics/sufami-turbo.hpp

@@ -1,31 +0,0 @@
-#ifndef NALL_EMULATION_SUFAMI_TURBO_HPP
-#define NALL_EMULATION_SUFAMI_TURBO_HPP
-
-#include <nall/sha256.hpp>
-#include <nall/string.hpp>
-
-namespace nall {
-
-struct SufamiTurboCartridge {
-  string markup;
-  inline SufamiTurboCartridge(const uint8_t *data, unsigned size);
-};
-
-SufamiTurboCartridge::SufamiTurboCartridge(const uint8_t *data, unsigned size) {
-  markup = "";
-
-  if(size < 0x20000) return;  //too small to be a valid game?
-  if(memcmp(data, "BANDAI SFC-ADX", 14)) return;  //missing required header?
-  unsigned romsize = data[0x36] * 0x20000;  //128KB
-  unsigned ramsize = data[0x37] *   0x800;    //2KB
-  bool linkable = data[0x35] != 0x00;  //TODO: unconfirmed
-
-  markup.append("cartridge", linkable ? " linkable" : "", "\n");
-  markup.append("  rom name=program.rom size=0x", hex(romsize), "\n");
-  if(ramsize)
-  markup.append("  ram name=save.ram size=0x", hex(ramsize), "\n");
-}
-
-}
-
-#endif

ananke/heuristics/super-famicom.hpp

@@ -1,814 +0,0 @@
-#ifndef NALL_EMULATION_SUPER_FAMICOM_HPP
-#define NALL_EMULATION_SUPER_FAMICOM_HPP
-
-#include <nall/sha256.hpp>
-#include <nall/string.hpp>
-
-namespace nall {
-
-struct SuperFamicomCartridge {
-  string markup;
-  inline SuperFamicomCartridge(const uint8_t *data, unsigned size);
-
-//private:
-  inline void read_header(const uint8_t *data, unsigned size);
-  inline unsigned find_header(const uint8_t *data, unsigned size);
-  inline unsigned score_header(const uint8_t *data, unsigned size, unsigned addr);
-
-  enum HeaderField {
-    CartName    = 0x00,
-    Mapper      = 0x15,
-    RomType     = 0x16,
-    RomSize     = 0x17,
-    RamSize     = 0x18,
-    CartRegion  = 0x19,
-    Company     = 0x1a,
-    Version     = 0x1b,
-    Complement  = 0x1c,  //inverse checksum
-    Checksum    = 0x1e,
-    ResetVector = 0x3c,
-  };
-
-  enum Mode {
-    ModeNormal,
-    ModeBsxSlotted,
-    ModeBsx,
-    ModeSufamiTurbo,
-    ModeSuperGameBoy,
-  };
-
-  enum Type {
-    TypeNormal,
-    TypeBsxSlotted,
-    TypeBsxBios,
-    TypeBsx,
-    TypeSufamiTurboBios,
-    TypeSufamiTurbo,
-    TypeSuperGameBoy1Bios,
-    TypeSuperGameBoy2Bios,
-    TypeGameBoy,
-    TypeUnknown,
-  };
-
-  enum Region {
-    NTSC,
-    PAL,
-  };
-
-  enum MemoryMapper {
-    LoROM,
-    HiROM,
-    ExLoROM,
-    ExHiROM,
-    SuperFXROM,
-    SA1ROM,
-    SPC7110ROM,
-    BSCLoROM,
-    BSCHiROM,
-    BSXROM,
-    STROM,
-  };
-
-  enum DSP1MemoryMapper {
-    DSP1Unmapped,
-    DSP1LoROM1MB,
-    DSP1LoROM2MB,
-    DSP1HiROM,
-  };
-
-  bool loaded;             //is a base cartridge inserted?
-  unsigned crc32;          //crc32 of all cartridges (base+slot(s))
-  unsigned rom_size;
-  unsigned ram_size;
-  bool firmware_appended;  //true if firmware is appended to end of ROM data
-
-  Mode mode;
-  Type type;
-  Region region;
-  MemoryMapper mapper;
-  DSP1MemoryMapper dsp1_mapper;
-
-  bool has_bsx_slot;
-  bool has_superfx;
-  bool has_sa1;
-  bool has_sharprtc;
-  bool has_epsonrtc;
-  bool has_sdd1;
-  bool has_spc7110;
-  bool has_cx4;
-  bool has_dsp1;
-  bool has_dsp2;
-  bool has_dsp3;
-  bool has_dsp4;
-  bool has_obc1;
-  bool has_st010;
-  bool has_st011;
-  bool has_st018;
-};
-
-SuperFamicomCartridge::SuperFamicomCartridge(const uint8_t *data, unsigned size) {
-  firmware_appended = false;
-
-  //skip copier header
-  if((size & 0x7fff) == 512) data += 512, size -= 512;
-
-  markup = "";
-  if(size < 0x8000) return;
-
-  read_header(data, size);
-
-  markup = "";
-  if(type == TypeGameBoy) return;
-  if(type == TypeBsx) return;
-  if(type == TypeSufamiTurbo) return;
-
-  const char *range = (rom_size > 0x200000) || (ram_size > 32 * 1024) ? "0000-7fff" : "0000-ffff";
-  markup.append("cartridge region=", region == NTSC ? "NTSC" : "PAL", "\n");
-
-  if(type == TypeSuperGameBoy1Bios || type == TypeSuperGameBoy2Bios) {
-    markup.append(
-      "  rom name=program.rom size=0x", hex(rom_size), "\n"
-      "  map id=rom address=00-7f,80-ff:8000-ffff mask=0x8000\n"
-      "  icd2 revision=1\n"
-      "    rom name=sgb.boot.rom size=0x100\n"
-      "    map id=io address=00-3f,80-bf:6000-7fff\n"
-    );
-    if((rom_size & 0x7fff) == 0x100) {
-      firmware_appended = true;
-      rom_size -= 0x100;
-    }
-  }
-
-  else if(has_cx4) {
-    markup.append(
-      "  hitachidsp model=HG51B169 frequency=20000000\n"
-      "    rom id=program name=program.rom size=0x", hex(rom_size), "\n"
-      "    rom id=data name=cx4.data.rom size=0xc00\n"
-      "    ram id=data size=0xc00\n"
-      "    map id=io address=00-3f,80-bf:6000-7fff\n"
-      "    map id=rom address=00-7f,80-ff:8000-ffff mask=0x8000\n"
-      "    map id=ram address=70-77:0000-7fff\n"
-    );
-    if((rom_size & 0x7fff) == 0xc00) {
-      firmware_appended = true;
-      rom_size -= 0xc00;
-    }
-  }
-
-  else if(has_spc7110) {
-    markup.append(
-      "  spc7110\n"
-      "    rom id=program name=program.rom size=0x100000\n"
-      "    rom id=data name=data.rom size=0x", hex(rom_size - 0x100000), "\n"
-      "    ram name=save.ram size=0x", hex(ram_size), "\n"
-      "    map id=io address=00-3f,80-bf:4800-483f\n"
-      "    map id=io address=50:0000-ffff\n"
-      "    map id=rom address=00-3f,80-bf:8000-ffff\n"
-      "    map id=rom address=c0-ff:0000-ffff\n"
-      "    map id=ram address=00-3f,80-bf:6000-7fff mask=0xe000\n"
-    );
-  }
-
-  else if(has_sdd1) {
-    markup.append(
-      "  sdd1\n"
-      "    rom name=program.rom size=0x", hex(rom_size), "\n"
-    );
-    if(ram_size > 0) markup.append(
-      "    ram name=save.ram size=0x", hex(ram_size), "\n"
-    );
-    markup.append(
-      "    map id=io address=00-3f,80-bf:4800-4807\n"
-      "    map id=rom address=00-3f,80-bf:8000-ffff mask=0x8000\n"
-      "    map id=rom address=c0-ff:0000-ffff\n"
-    );
-    if(ram_size > 0) markup.append(
-      "    map id=ram address=20-3f,a0-bf:6000-7fff mask=0xe000\n"
-      "    map id=ram address=70-7f:0000-7fff\n"
-    );
-  }
-
-  else if(mapper == LoROM) {
-    markup.append(
-      "  rom name=program.rom size=0x", hex(rom_size), "\n"
-    );
-    if(ram_size > 0) markup.append(
-      "  ram name=save.ram size=0x", hex(ram_size), "\n"
-    );
-    markup.append(
-      "  map id=rom address=00-7f,80-ff:8000-ffff mask=0x8000\n"
-    );
-    if(ram_size > 0) markup.append(
-      "  map id=ram address=70-7f,f0-ff:", range, "\n"
-    );
-  }
-
-  else if(mapper == HiROM) {
-    markup.append(
-      "  rom name=program.rom size=0x", hex(rom_size), "\n"
-    );
-    if(ram_size > 0) markup.append(
-      "  ram name=save.ram size=0x", hex(ram_size), "\n"
-    );
-    markup.append(
-      "  map id=rom address=00-3f,80-bf:8000-ffff\n"
-      "  map id=rom address=40-7f,c0-ff:0000-ffff\n"
-    );
-    if(ram_size > 0) markup.append(
-      "  map id=ram address=10-3f,90-bf:6000-7fff mask=0xe000\n"
-    );
-  }
-
-  else if(mapper == ExLoROM) {
-    markup.append(
-      "  rom name=program.rom size=0x", hex(rom_size), "\n"
-    );
-    if(ram_size > 0) markup.append(
-      "  ram name=save.ram size=0x", hex(ram_size), "\n"
-    );
-    markup.append(
-      "  map id=rom address=00-3f,80-bf:8000-ffff mask=0x8000\n"
-      "  map id=rom address=40-7f:0000-ffff\n"
-    );
-    if(ram_size > 0) markup.append(
-      "  map id=ram address=20-3f,a0-bf:6000-7fff\n"
-      "  map id=ram address=70-7f:0000-7fff\n"
-    );
-  }
-
-  else if(mapper == ExHiROM) {
-    markup.append(
-      "  rom name=program.rom size=0x", hex(rom_size), "\n"
-    );
-    if(ram_size > 0) markup.append(
-      "  ram name=save.ram size=0x", hex(ram_size), "\n"
-    );
-    markup.append(
-      "  map id=rom address=00-3f:8000-ffff base=0x400000\n"
-      "  map id=rom address=40-7f:0000-ffff base=0x400000\n"
-      "  map id=rom address=80-bf:8000-ffff mask=0xc00000\n"
-      "  map id=rom address=c0-ff:0000-ffff mask=0xc00000\n"
-    );
-    if(ram_size > 0) markup.append(
-      "  map id=ram address=20-3f,a0-bf:6000-7fff mask=0xe000\n"
-      "  map id=ram address=70-7f:", range, "\n"
-    );
-  }
-
-  else if(mapper == SuperFXROM) {
-    markup.append(
-      "  superfx revision=3\n"
-      "    rom name=program.rom size=0x", hex(rom_size), "\n"
-    );
-    if(ram_size > 0) markup.append(
-      "    ram name=save.ram size=0x", hex(ram_size), "\n"
-    );
-    markup.append(
-      "    map id=io address=00-3f,80-bf:3000-32ff\n"
-      "    map id=rom address=00-3f,80-bf:8000-ffff mask=0x8000\n"
-      "    map id=rom address=40-5f,c0-df:0000-ffff\n"
-    );
-    if(ram_size > 0) markup.append(
-      "    map id=ram address=00-3f,80-bf:6000-7fff size=0x2000\n"
-      "    map id=ram address=70-71,f0-f1:0000-ffff\n"
-    );
-  }
-
-  else if(mapper == SA1ROM) {
-    markup.append(
-      "  sa1\n"
-      "    rom name=program.rom size=0x", hex(rom_size), "\n"
-    );
-    if(ram_size > 0) markup.append(
-      "    ram id=bitmap name=save.ram size=0x", hex(ram_size), "\n"
-    );
-    markup.append(
-      "    ram id=internal size=0x800\n"
-      "    map id=io address=00-3f,80-bf:2200-23ff\n"
-      "    map id=rom address=00-3f,80-bf:8000-ffff\n"
-      "    map id=rom address=c0-ff:0000-ffff\n"
-    );
-    if(ram_size > 0) markup.append(
-      "    map id=bwram address=00-3f,80-bf:6000-7fff\n"
-      "    map id=bwram address=40-4f:0000-ffff\n"
-    );
-    markup.append(
-      "    map id=iram address=00-3f,80-bf:3000-37ff\n"
-    );
-  }
-
-  else if(mapper == BSCLoROM) {
-    markup.append(
-      "  rom name=program.rom size=0x", hex(rom_size), "\n"
-      "  ram name=save.ram size=0x", hex(ram_size), "\n"
-      "  map id=rom address=00-1f:8000-ffff base=0x000000 mask=0x8000\n"
-      "  map id=rom address=20-3f:8000-ffff base=0x100000 mask=0x8000\n"
-      "  map id=rom address=80-9f:8000-ffff base=0x200000 mask=0x8000\n"
-      "  map id=rom address=a0-bf:8000-ffff base=0x100000 mask=0x8000\n"
-      "  map id=ram address=70-7f,f0-ff:0000-7fff\n"
-      "  bsxslot\n"
-      "    map id=rom address=c0-ef:0000-ffff\n"
-    );
-  }
-
-  else if(mapper == BSCHiROM) {
-    markup.append(
-      "  rom name=program.rom size=0x", hex(rom_size), "\n"
-      "  ram name=save.ram size=0x", hex(ram_size), "\n"
-      "  map id=rom address=00-1f,80-9f:8000-ffff\n"
-      "  map id=rom address=40-5f,c0-df:0000-ffff\n"
-      "  map id=ram address=20-3f,a0-bf:6000-7fff\n"
-      "  bsxslot\n"
-      "    map id=rom address=20-3f,a0-bf:8000-ffff\n"
-      "    map id=rom address=60-7f,e0-ff:0000-ffff\n"
-    );
-  }
-
-  else if(mapper == BSXROM) {
-    markup.append(
-      "  bsx\n"
-      "    rom name=program.rom size=0x", hex(rom_size), "\n"
-      "    ram id=save name=save.ram size=0x", hex(ram_size), "\n"
-      "    ram id=download name=bsx.ram size=0x40000\n"
-      "    map id=io address=00-3f,80-bf:5000-5fff\n"
-      "    map id=rom address=00-3f,80-bf:8000-ffff\n"
-      "    map id=rom address=40-7f,c0-ff:0000-ffff\n"
-      "    map id=ram address=20-3f:6000-7fff\n"
-    );
-  }
-
-  else if(mapper == STROM) {
-    markup.append(
-      "  rom name=program.rom size=0x", hex(rom_size), "\n"
-      "  map id=rom address='00-1f,80-9f:8000-ffff mask=0x8000\n"
-      "  sufamiturbo\n"
-      "    slot id=A\n"
-      "      map id=rom address=20-3f,a0-bf:8000-ffff mask=0x8000\n"
-      "      map id=ram address=60-63,e0-e3:8000-ffff\n"
-      "    slot id=B\n"
-      "      map id=rom address=40-5f,c0-df:8000-ffff mask=0x8000\n"
-      "      map id=ram address=70-73,f0-f3:8000-ffff\n"
-    );
-  }
-
-  if(has_sharprtc) {
-    markup.append(
-      "  sharprtc\n"
-      "    ram name=rtc.ram size=0x10\n"
-      "    map id=io address=00-3f,80-bf:2800-2801\n"
-    );
-  }
-
-  if(has_epsonrtc) {
-    markup.append(
-      "  epsonrtc\n"
-      "    ram name=rtc.ram size=0x10\n"
-      "    map id=io address=00-3f,80-bf:4840-4842\n"
-    );
-  }
-
-  if(has_obc1) {
-    markup.append(
-      "  obc1\n"
-      "    ram name=save.ram size=0x2000\n"
-      "    map id=io address=00-3f,80-bf:6000-7fff\n"
-    );
-  }
-
-  if(has_dsp1) {
-    markup.append(
-      "  necdsp model=uPD7725 frequency=8000000\n"
-      "    rom id=program name=dsp1b.program.rom size=0x1800\n"
-      "    rom id=data name=dsp1b.data.rom size=0x800\n"
-      "    ram id=data size=0x200\n"
-    );
-    if(dsp1_mapper == DSP1LoROM1MB) markup.append(
-      "    map id=io address=20-3f,a0-bf:8000-ffff select=0x4000\n"
-    );
-    if(dsp1_mapper == DSP1LoROM2MB) markup.append(
-      "    map id=io address=60-6f,e0-ef:0000-7fff select=0x4000\n"
-    );
-    if(dsp1_mapper == DSP1HiROM) markup.append(
-      "    map id=io address=00-1f,80-9f:6000-7fff select=0x1000\n"
-    );
-    if((size & 0x7fff) == 0x2000) {
-      firmware_appended = true;
-      rom_size -= 0x2000;
-    }
-  }
-
-  if(has_dsp2) {
-    markup.append(
-      "  necdsp model=uPD7725 frequency=8000000\n"
-      "    rom id=program name=dsp2.program.rom size=0x1800\n"
-      "    rom id=data name=dsp2.data.rom size=0x800\n"
-      "    ram id=data size=0x200\n"
-      "    map id=io address=20-3f,a0-bf:8000-ffff select=0x4000\n"
-    );
-    if((size & 0x7fff) == 0x2000) {
-      firmware_appended = true;
-      rom_size -= 0x2000;
-    }
-  }
-
-  if(has_dsp3) {
-    markup.append(
-      "  necdsp model=uPD7725 frequency=8000000\n"
-      "    rom id=program name=dsp3.program.rom size=0x1800\n"
-      "    rom id=data name=dsp3.data.rom size=0x800\n"
-      "    ram id=data size=0x200\n"
-      "    map id=io address=20-3f,a0-bf:8000-ffff select=0x4000\n"
-    );
-    if((size & 0x7fff) == 0x2000) {
-      firmware_appended = true;
-      rom_size -= 0x2000;
-    }
-  }
-
-  if(has_dsp4) {
-    markup.append(
-      "  necdsp model=uPD7725 frequency=8000000\n"
-      "    rom id=program name=dsp4.program.rom size=0x1800\n"
-      "    rom id=data name=dsp4.data.rom size=0x800\n"
-      "    ram id=data size=0x200\n"
-      "    map id=io address=30-3f,b0-bf:8000-ffff select=0x4000\n"
-    );
-    if((size & 0x7fff) == 0x2000) {
-      firmware_appended = true;
-      rom_size -= 0x2000;
-    }
-  }
-
-  if(has_st010) {
-    markup.append(
-      "  necdsp model=uPD96050 frequency=11000000\n"
-      "    rom id=program name=st010.program.rom size=0xc000\n"
-      "    rom id=data name=st010.data.rom size=0x1000\n"
-      "    ram id=data name=save.ram size=0x1000\n"
-      "    map id=io address=60-67,e0-e7:0000-3fff select=0x0001\n"
-      "    map id=ram address=68-6f,e8-ef:0000-7fff\n"
-    );
-    if((size & 0xffff) == 0xd000) {
-      firmware_appended = true;
-      rom_size -= 0xd000;
-    }
-  }
-
-  if(has_st011) {
-    markup.append(
-      "  necdsp model=uPD96050 frequency=15000000\n"
-      "    rom id=program name=st011.program.rom size=0xc000\n"
-      "    rom id=data name=st011.data.rom size=0x1000\n"
-      "    ram id=data name=save.ram size=0x1000\n"
-      "    map id=io address=60-67,e0-e7:0000-3fff select=0x0001\n"
-      "    map id=ram address=68-6f,e8-ef:0000-7fff\n"
-    );
-    if((size & 0xffff) == 0xd000) {
-      firmware_appended = true;
-      rom_size -= 0xd000;
-    }
-  }
-
-  if(has_st018) {
-    markup.append(
-      "  armdsp frequency=21477272\n"
-      "    rom id=program name=st018.program.rom size=0x20000\n"
-      "    rom id=data name=st018.data.rom size=0x8000\n"
-      "    ram name=save.ram size=0x4000\n"
-      "    map id=io address=00-3f,80-bf:3800-38ff\n"
-    );
-    if((size & 0x3ffff) == 0x28000) {
-      firmware_appended = true;
-      rom_size -= 0x28000;
-    }
-  }
-}
-
-void SuperFamicomCartridge::read_header(const uint8_t *data, unsigned size) {
-  type        = TypeUnknown;
-  mapper      = LoROM;
-  dsp1_mapper = DSP1Unmapped;
-  region      = NTSC;
-  rom_size    = size;
-  ram_size    = 0;
-
-  has_bsx_slot   = false;
-  has_superfx    = false;
-  has_sa1        = false;
-  has_sharprtc   = false;
-  has_epsonrtc   = false;
-  has_sdd1       = false;
-  has_spc7110    = false;
-  has_cx4        = false;
-  has_dsp1       = false;
-  has_dsp2       = false;
-  has_dsp3       = false;
-  has_dsp4       = false;
-  has_obc1       = false;
-  has_st010      = false;
-  has_st011      = false;
-  has_st018      = false;
-
-  //=====================
-  //detect Game Boy carts
-  //=====================
-
-  if(size >= 0x0140) {
-    if(data[0x0104] == 0xce && data[0x0105] == 0xed && data[0x0106] == 0x66 && data[0x0107] == 0x66
-    && data[0x0108] == 0xcc && data[0x0109] == 0x0d && data[0x010a] == 0x00 && data[0x010b] == 0x0b) {
-      type = TypeGameBoy;
-      return;
-    }
-  }
-
-  if(size < 32768) {
-    type = TypeUnknown;
-    return;
-  }
-
-  const unsigned index = find_header(data, size);
-  const uint8_t mapperid = data[index + Mapper];
-  const uint8_t rom_type = data[index + RomType];
-  const uint8_t rom_size = data[index + RomSize];
-  const uint8_t company  = data[index + Company];
-  const uint8_t regionid = data[index + CartRegion] & 0x7f;
-
-  ram_size = 1024 << (data[index + RamSize] & 7);
-  if(ram_size == 1024) ram_size = 0;  //no RAM present
-  if(rom_size == 0 && ram_size) ram_size = 0;  //fix for Bazooka Blitzkrieg's malformed header (swapped ROM and RAM sizes)
-
-  //0, 1, 13 = NTSC; 2 - 12 = PAL
-  region = (regionid <= 1 || regionid >= 13) ? NTSC : PAL;
-
-  //=======================
-  //detect BS-X flash carts
-  //=======================
-
-  if(data[index + 0x13] == 0x00 || data[index + 0x13] == 0xff) {
-    if(data[index + 0x14] == 0x00) {
-      const uint8_t n15 = data[index + 0x15];
-      if(n15 == 0x00 || n15 == 0x80 || n15 == 0x84 || n15 == 0x9c || n15 == 0xbc || n15 == 0xfc) {
-        if(data[index + 0x1a] == 0x33 || data[index + 0x1a] == 0xff) {
-          type = TypeBsx;
-          mapper = BSXROM;
-          region = NTSC;  //BS-X only released in Japan
-          return;
-        }
-      }
-    }
-  }
-
-  //=========================
-  //detect Sufami Turbo carts
-  //=========================
-
-  if(!memcmp(data, "BANDAI SFC-ADX", 14)) {
-    if(!memcmp(data + 16, "SFC-ADX BACKUP", 14)) {
-      type = TypeSufamiTurboBios;
-    } else {
-      type = TypeSufamiTurbo;
-    }
-    mapper = STROM;
-    region = NTSC;  //Sufami Turbo only released in Japan
-    return;         //RAM size handled outside this routine
-  }
-
-  //==========================
-  //detect Super Game Boy BIOS
-  //==========================
-
-  if(!memcmp(data + index, "Super GAMEBOY2", 14)) {
-    type = TypeSuperGameBoy2Bios;
-    return;
-  }
-
-  if(!memcmp(data + index, "Super GAMEBOY", 13)) {
-    type = TypeSuperGameBoy1Bios;
-    return;
-  }
-
-  //=====================
-  //detect standard carts
-  //=====================
-
-  //detect presence of BS-X flash cartridge connector (reads extended header information)
-  if(data[index - 14] == 'Z') {
-    if(data[index - 11] == 'J') {
-      uint8_t n13 = data[index - 13];
-      if((n13 >= 'A' && n13 <= 'Z') || (n13 >= '0' && n13 <= '9')) {
-        if(company == 0x33 || (data[index - 10] == 0x00 && data[index - 4] == 0x00)) {
-          has_bsx_slot = true;
-        }
-      }
-    }
-  }
-
-  if(has_bsx_slot) {
-    if(!memcmp(data + index, "Satellaview BS-X     ", 21)) {
-      //BS-X base cart
-      type = TypeBsxBios;
-      mapper = BSXROM;
-      region = NTSC;  //BS-X only released in Japan
-      return;         //RAM size handled internally by load_cart_bsx() -> BSXCart class
-    } else {
-      type = TypeBsxSlotted;
-      mapper = (index == 0x7fc0 ? BSCLoROM : BSCHiROM);
-      region = NTSC;  //BS-X slotted cartridges only released in Japan
-    }
-  } else {
-    //standard cart
-    type = TypeNormal;
-
-    if(index == 0x7fc0 && size >= 0x401000) {
-      mapper = ExLoROM;
-    } else if(index == 0x7fc0 && mapperid == 0x32) {
-      mapper = ExLoROM;
-    } else if(index == 0x7fc0) {
-      mapper = LoROM;
-    } else if(index == 0xffc0) {
-      mapper = HiROM;
-    } else {  //index == 0x40ffc0
-      mapper = ExHiROM;
-    }
-  }
-
-  if(mapperid == 0x20 && (rom_type == 0x13 || rom_type == 0x14 || rom_type == 0x15 || rom_type == 0x1a)) {
-    has_superfx = true;
-    mapper = SuperFXROM;
-    ram_size = 1024 << (data[index - 3] & 7);
-    if(ram_size == 1024) ram_size = 0;
-  }
-
-  if(mapperid == 0x23 && (rom_type == 0x32 || rom_type == 0x34 || rom_type == 0x35)) {
-    has_sa1 = true;
-    mapper = SA1ROM;
-  }
-
-  if(mapperid == 0x35 && rom_type == 0x55) {
-    has_sharprtc = true;
-  }
-
-  if(mapperid == 0x32 && (rom_type == 0x43 || rom_type == 0x45)) {
-    has_sdd1 = true;
-  }
-
-  if(mapperid == 0x3a && (rom_type == 0xf5 || rom_type == 0xf9)) {
-    has_spc7110 = true;
-    has_epsonrtc = (rom_type == 0xf9);
-    mapper = SPC7110ROM;
-  }
-
-  if(mapperid == 0x20 && rom_type == 0xf3) {
-    has_cx4 = true;
-  }
-
-  if((mapperid == 0x20 || mapperid == 0x21) && rom_type == 0x03) {
-    has_dsp1 = true;
-  }
-
-  if(mapperid == 0x30 && rom_type == 0x05 && company != 0xb2) {
-    has_dsp1 = true;
-  }
-
-  if(mapperid == 0x31 && (rom_type == 0x03 || rom_type == 0x05)) {
-    has_dsp1 = true;
-  }
-
-  if(has_dsp1 == true) {
-    if((mapperid & 0x2f) == 0x20 && size <= 0x100000) {
-      dsp1_mapper = DSP1LoROM1MB;
-    } else if((mapperid & 0x2f) == 0x20) {
-      dsp1_mapper = DSP1LoROM2MB;
-    } else if((mapperid & 0x2f) == 0x21) {
-      dsp1_mapper = DSP1HiROM;
-    }
-  }
-
-  if(mapperid == 0x20 && rom_type == 0x05) {
-    has_dsp2 = true;
-  }
-
-  if(mapperid == 0x30 && rom_type == 0x05 && company == 0xb2) {
-    has_dsp3 = true;
-  }
-
-  if(mapperid == 0x30 && rom_type == 0x03) {
-    has_dsp4 = true;
-  }
-
-  if(mapperid == 0x30 && rom_type == 0x25) {
-    has_obc1 = true;
-  }
-
-  if(mapperid == 0x30 && rom_type == 0xf6 && rom_size >= 10) {
-    has_st010 = true;
-  }
-
-  if(mapperid == 0x30 && rom_type == 0xf6 && rom_size < 10) {
-    has_st011 = true;
-  }
-
-  if(mapperid == 0x30 && rom_type == 0xf5) {
-    has_st018 = true;
-  }
-}
-
-unsigned SuperFamicomCartridge::find_header(const uint8_t *data, unsigned size) {
-  unsigned score_lo = score_header(data, size, 0x007fc0);
-  unsigned score_hi = score_header(data, size, 0x00ffc0);
-  unsigned score_ex = score_header(data, size, 0x40ffc0);
-  if(score_ex) score_ex += 4;  //favor ExHiROM on images > 32mbits
-
-  if(score_lo >= score_hi && score_lo >= score_ex) {
-    return 0x007fc0;
-  } else if(score_hi >= score_ex) {
-    return 0x00ffc0;
-  } else {
-    return 0x40ffc0;
-  }
-}
-
-unsigned SuperFamicomCartridge::score_header(const uint8_t *data, unsigned size, unsigned addr) {
-  if(size < addr + 64) return 0;  //image too small to contain header at this location?
-  int score = 0;
-
-  uint16_t resetvector = data[addr + ResetVector] | (data[addr + ResetVector + 1] << 8);
-  uint16_t checksum    = data[addr + Checksum   ] | (data[addr + Checksum    + 1] << 8);
-  uint16_t complement  = data[addr + Complement ] | (data[addr + Complement  + 1] << 8);
-
-  uint8_t resetop = data[(addr & ~0x7fff) | (resetvector & 0x7fff)];  //first opcode executed upon reset
-  uint8_t mapper  = data[addr + Mapper] & ~0x10;                      //mask off irrelevent FastROM-capable bit
-
-  //$00:[000-7fff] contains uninitialized RAM and MMIO.
-  //reset vector must point to ROM at $00:[8000-ffff] to be considered valid.
-  if(resetvector < 0x8000) return 0;
-
-  //some images duplicate the header in multiple locations, and others have completely
-  //invalid header information that cannot be relied upon.
-  //below code will analyze the first opcode executed at the specified reset vector to
-  //determine the probability that this is the correct header.
-
-  //most likely opcodes
-  if(resetop == 0x78  //sei
-  || resetop == 0x18  //clc (clc; xce)
-  || resetop == 0x38  //sec (sec; xce)
-  || resetop == 0x9c  //stz $nnnn (stz $4200)
-  || resetop == 0x4c  //jmp $nnnn
-  || resetop == 0x5c  //jml $nnnnnn
-  ) score += 8;
-
-  //plausible opcodes
-  if(resetop == 0xc2  //rep #$nn
-  || resetop == 0xe2  //sep #$nn
-  || resetop == 0xad  //lda $nnnn
-  || resetop == 0xae  //ldx $nnnn
-  || resetop == 0xac  //ldy $nnnn
-  || resetop == 0xaf  //lda $nnnnnn
-  || resetop == 0xa9  //lda #$nn
-  || resetop == 0xa2  //ldx #$nn
-  || resetop == 0xa0  //ldy #$nn
-  || resetop == 0x20  //jsr $nnnn
-  || resetop == 0x22  //jsl $nnnnnn
-  ) score += 4;
-
-  //implausible opcodes
-  if(resetop == 0x40  //rti
-  || resetop == 0x60  //rts
-  || resetop == 0x6b  //rtl
-  || resetop == 0xcd  //cmp $nnnn
-  || resetop == 0xec  //cpx $nnnn
-  || resetop == 0xcc  //cpy $nnnn
-  ) score -= 4;
-
-  //least likely opcodes
-  if(resetop == 0x00  //brk #$nn
-  || resetop == 0x02  //cop #$nn
-  || resetop == 0xdb  //stp
-  || resetop == 0x42  //wdm
-  || resetop == 0xff  //sbc $nnnnnn,x
-  ) score -= 8;
-
-  //at times, both the header and reset vector's first opcode will match ...
-  //fallback and rely on info validity in these cases to determine more likely header.
-
-  //a valid checksum is the biggest indicator of a valid header.
-  if((checksum + complement) == 0xffff && (checksum != 0) && (complement != 0)) score += 4;
-
-  if(addr == 0x007fc0 && mapper == 0x20) score += 2;  //0x20 is usually LoROM
-  if(addr == 0x00ffc0 && mapper == 0x21) score += 2;  //0x21 is usually HiROM
-  if(addr == 0x007fc0 && mapper == 0x22) score += 2;  //0x22 is usually ExLoROM
-  if(addr == 0x40ffc0 && mapper == 0x25) score += 2;  //0x25 is usually ExHiROM
-
-  if(data[addr + Company] == 0x33) score += 2;        //0x33 indicates extended header
-  if(data[addr + RomType] < 0x08) score++;
-  if(data[addr + RomSize] < 0x10) score++;
-  if(data[addr + RamSize] < 0x08) score++;
-  if(data[addr + CartRegion] < 14) score++;
-
-  if(score < 0) score = 0;
-  return score;
-}
-
-}
-
-#endif

ananke/obj/.gitignore

@@ -1 +0,0 @@
-*.o

ananke/patch.cpp

@@ -1,15 +0,0 @@
-void Ananke::applyBeatPatch(vector<uint8_t> &buffer) {
-  string name = {information.path, nall::basename(information.name), ".bps"};
-  if(!file::exists(name)) return;
-
-  bpspatch patch;
-  if(patch.modify(name) == false) return;
-  patch.source(buffer.data(), buffer.size());
-  vector<uint8_t> output;
-  output.resize(patch.size());
-  patch.target(output.data(), output.size());
-  if(patch.apply() == bpspatch::result::success) {
-    buffer = output;
-    information.manifest = patch.metadata();
-  }
-}

ananke/resource/resource.bml

@@ -1,6 +0,0 @@
-resource name=resource
-  binary id=home name=home.png
-  binary id=up name=up.png
-  binary id=folder name=folder.png
-  binary id=file name=file.png
-  binary id=archive name=archive.png

ananke/resource/resource.cpp

@@ -1,156 +0,0 @@
-namespace resource {
-
-const uint8_t home[606] = {
-  137,80,78,71,13,10,26,10,0,0,0,13,73,72,68,82,0,0,0,16,0,0,0,16,8,6,0,0,0,31,243,255,
-  97,0,0,0,6,98,75,71,68,0,0,0,0,0,0,249,67,187,127,0,0,0,9,112,72,89,115,0,0,13,215,0,
-  0,13,215,1,66,40,155,120,0,0,0,7,116,73,77,69,7,213,10,14,20,37,19,83,42,210,59,0,0,1,235,73,
-  68,65,84,56,203,149,147,191,107,83,81,20,128,191,123,251,222,75,211,64,242,36,160,85,135,100,81,123,19,104,85,172,
-  17,92,28,140,66,19,167,135,212,74,39,145,162,163,24,92,58,180,110,193,169,254,24,234,212,37,139,245,199,96,19,240,
-  15,240,63,16,121,91,92,196,90,219,240,98,81,137,33,121,215,33,246,217,151,80,33,103,186,92,206,247,221,115,14,231,
-  194,1,225,41,85,172,128,174,128,246,148,122,200,48,177,7,123,74,105,79,169,61,73,113,104,120,177,56,163,203,55,111,
-  252,87,34,250,225,154,235,110,20,148,98,253,220,89,182,39,78,113,228,240,56,39,188,38,83,107,107,212,92,151,130,82,
-  215,14,185,110,117,64,176,31,126,83,156,97,247,248,49,148,202,50,22,141,210,106,181,24,219,252,74,182,92,30,144,136,
-  126,184,122,251,22,157,100,146,116,42,77,42,149,2,64,107,104,183,219,236,214,235,156,44,149,66,18,177,31,126,247,160,
-  68,199,48,201,229,46,96,219,118,208,154,214,26,0,223,247,249,185,181,69,114,110,46,144,136,10,232,130,82,188,127,84,
-  198,107,54,57,63,157,35,30,143,35,132,8,9,124,223,15,206,134,16,140,230,243,212,92,23,3,184,3,172,78,157,62,
-  195,253,210,61,54,170,111,3,240,201,202,51,86,30,63,69,139,17,116,167,133,48,70,209,221,223,44,47,45,209,238,165,
-  204,202,121,120,190,48,153,33,17,79,0,160,212,4,153,140,34,155,205,244,94,20,146,145,244,149,222,196,83,121,144,22,
-  90,107,22,38,51,204,195,186,236,239,211,178,44,76,211,196,48,140,224,254,75,227,7,0,31,234,59,116,187,126,144,11,
-  48,32,144,82,34,165,196,146,159,1,232,96,241,241,83,3,128,111,222,47,58,34,18,90,36,99,96,179,254,14,207,231,
-  40,0,151,46,78,115,53,26,67,234,113,46,75,147,237,77,66,21,24,253,21,252,155,126,239,165,239,222,14,162,217,56,
-  112,245,3,65,36,18,193,182,109,18,137,4,2,137,16,16,139,197,112,28,103,0,178,44,43,252,23,174,207,58,175,0,
-  135,225,98,245,229,139,215,119,255,0,86,248,213,163,133,187,128,26,0,0,0,0,73,69,78,68,174,66,96,130,
-};
-
-const uint8_t up[652] = {
-  137,80,78,71,13,10,26,10,0,0,0,13,73,72,68,82,0,0,0,16,0,0,0,16,8,6,0,0,0,31,243,255,
-  97,0,0,0,4,115,66,73,84,8,8,8,8,124,8,100,136,0,0,0,25,116,69,88,116,83,111,102,116,119,97,114,
-  101,0,119,119,119,46,105,110,107,115,99,97,112,101,46,111,114,103,155,238,60,26,0,0,2,30,73,68,65,84,56,141,
-  149,147,79,104,19,65,20,198,191,55,187,51,217,141,133,122,104,76,255,209,130,4,237,193,64,42,168,208,213,138,104,68,
-  98,69,45,20,114,107,74,201,73,144,98,22,193,171,199,82,145,160,23,15,69,79,30,165,66,241,226,77,42,94,68,80,
-  208,67,41,180,42,149,148,52,137,166,154,38,217,217,25,15,81,172,33,169,246,29,223,251,230,199,124,223,155,33,173,53,
-  218,213,201,155,124,30,0,150,102,189,233,118,26,214,110,224,184,60,221,223,21,73,246,117,29,76,58,46,79,239,9,224,
-  184,60,26,16,251,178,87,206,76,6,199,70,147,193,128,8,102,29,151,71,255,11,224,184,188,3,132,197,137,115,211,214,
-  150,151,199,150,183,137,248,200,37,11,132,69,199,229,29,255,4,16,225,209,232,112,162,167,55,52,72,159,75,31,240,177,
-  244,30,157,157,157,20,27,58,209,13,194,195,93,1,142,203,211,253,7,34,137,179,71,199,249,74,254,13,12,198,97,50,
-  142,87,107,11,136,13,29,23,161,253,61,137,230,60,216,142,195,81,193,237,108,42,225,218,235,229,101,104,242,32,132,137,
-  58,125,199,54,21,241,46,255,28,23,78,95,13,154,166,248,43,15,182,211,247,212,88,198,82,228,161,34,75,16,1,1,
-  30,224,40,203,117,8,219,64,65,174,162,168,86,113,254,212,69,139,216,159,60,216,111,223,241,99,227,221,135,250,98,148,
-  175,172,193,228,6,56,55,80,81,5,84,141,175,16,54,131,176,25,150,191,189,64,184,55,68,71,14,15,135,137,53,242,
-  160,145,140,153,30,232,142,100,111,76,220,177,5,15,64,65,194,135,135,215,185,5,188,45,60,131,100,21,16,35,36,6,
-  50,208,90,67,41,160,94,175,225,241,211,249,74,177,180,57,99,18,67,234,83,110,197,158,185,119,185,225,137,163,122,247,
-  250,19,171,44,115,240,141,109,112,193,192,76,130,193,9,115,15,110,87,101,77,91,191,236,7,137,33,101,46,205,122,78,
-  211,38,180,214,10,165,250,23,48,131,96,112,6,30,104,64,100,77,91,47,231,60,218,245,29,0,128,210,62,126,212,139,
-  141,43,251,26,178,174,160,85,235,63,99,182,106,250,74,162,90,219,134,50,53,160,21,124,73,240,189,61,0,164,47,17,
-  31,188,6,98,0,49,2,17,246,0,32,108,220,186,63,25,110,37,38,194,70,115,239,39,48,247,197,219,182,208,154,34,
-  0,0,0,0,73,69,78,68,174,66,96,130,
-};
-
-const uint8_t folder[1176] = {
-  137,80,78,71,13,10,26,10,0,0,0,13,73,72,68,82,0,0,0,32,0,0,0,32,8,6,0,0,0,115,122,122,
-  244,0,0,0,4,115,66,73,84,8,8,8,8,124,8,100,136,0,0,0,9,112,72,89,115,0,0,13,215,0,0,13,
-  215,1,66,40,155,120,0,0,0,25,116,69,88,116,83,111,102,116,119,97,114,101,0,119,119,119,46,105,110,107,115,99,
-  97,112,101,46,111,114,103,155,238,60,26,0,0,4,21,73,68,65,84,88,133,237,151,61,111,28,69,24,199,127,51,187,
-  119,123,175,246,57,145,48,9,5,86,148,194,31,0,9,5,33,83,110,149,130,26,137,2,90,58,62,64,36,62,64,74,
-  132,68,133,104,161,67,72,167,64,23,201,138,2,138,210,69,194,198,196,40,22,198,247,186,119,222,151,153,157,25,138,123,
-  201,58,119,142,19,114,82,40,248,75,143,118,118,118,247,121,126,243,60,51,179,187,34,12,67,94,167,228,107,141,254,95,
-  0,240,1,110,220,184,225,43,165,126,54,198,188,119,209,3,66,136,220,90,251,249,195,135,15,191,92,25,64,154,166,91,
-  149,74,229,157,155,55,111,250,73,146,224,156,3,192,90,11,48,63,159,182,253,59,119,238,220,222,222,222,254,254,209,163,
-  71,199,43,1,80,74,101,213,106,213,29,29,29,209,233,116,112,206,45,53,0,33,4,155,155,155,249,193,193,193,71,192,
-  237,149,0,104,173,211,44,203,196,165,75,27,24,99,176,214,158,9,92,204,132,16,130,106,181,90,63,60,60,252,98,123,
-  123,251,214,172,127,153,156,115,218,90,251,241,222,222,222,143,207,5,0,178,44,203,188,78,167,75,167,211,153,3,204,142,
-  179,32,197,64,91,91,91,245,70,163,65,179,217,68,8,129,16,2,0,41,229,188,29,69,17,247,238,221,187,5,60,31,
-  224,242,229,203,105,191,223,247,54,54,90,104,173,23,0,150,149,98,166,56,142,1,230,16,69,139,227,24,99,76,237,188,
-  224,115,128,221,221,93,117,237,218,53,217,235,245,230,25,0,150,130,204,178,81,212,108,196,197,224,82,202,25,64,229,66,
-  0,0,99,140,109,54,215,100,154,102,220,63,180,220,221,63,27,228,188,58,63,171,25,204,228,153,22,206,93,185,206,219,
-  31,232,226,61,158,39,190,93,255,253,155,79,206,0,56,231,116,183,219,245,187,221,46,143,59,13,62,253,240,93,174,191,
-  181,81,112,54,61,62,47,250,18,200,105,207,60,206,147,206,152,175,190,187,255,254,236,188,152,1,221,104,212,171,90,107,
-  212,31,146,102,181,204,254,223,99,162,56,159,140,108,233,104,207,35,17,11,77,1,52,42,62,42,211,8,65,103,118,121,
-  190,21,27,99,116,191,63,160,219,237,18,103,150,122,181,132,53,147,27,228,212,193,179,134,59,207,220,83,179,19,179,214,
-  145,100,134,52,203,193,137,249,6,86,44,65,86,169,4,180,90,45,50,35,168,5,37,172,83,120,114,53,175,139,113,154,
-  83,111,250,140,134,57,214,186,39,11,0,121,158,171,40,26,209,239,15,208,230,13,170,129,143,115,14,79,158,155,231,23,
-  147,131,81,170,209,185,37,240,37,113,170,173,49,249,209,2,128,49,38,43,151,75,84,155,27,172,213,202,56,64,10,177,
-  188,248,47,40,227,28,163,84,147,91,135,231,9,130,178,199,105,146,41,33,196,201,2,128,181,54,27,141,198,28,15,20,
-  235,245,75,232,220,190,210,232,51,109,137,51,3,78,224,79,253,148,61,201,232,84,229,130,167,147,176,152,129,212,247,125,
-  188,32,160,73,153,76,217,11,131,76,230,152,195,186,201,62,97,236,196,84,110,151,173,72,156,131,193,40,181,185,115,139,
-  0,214,218,100,60,30,211,25,248,84,90,101,162,68,147,233,233,75,8,200,141,69,27,135,206,45,185,153,110,203,47,153,
-  149,68,25,134,227,196,19,210,91,90,130,84,8,129,12,26,148,74,62,163,68,19,37,154,84,25,148,182,47,29,108,153,
-  226,44,231,52,209,62,231,148,32,142,227,83,122,81,133,74,13,30,159,196,12,99,189,212,209,191,145,0,134,177,66,25,
-  83,250,245,234,94,47,124,252,12,128,181,54,6,129,245,107,100,185,37,138,53,74,95,60,15,94,84,82,10,78,134,9,
-  82,200,56,220,221,157,59,62,51,7,146,36,33,74,12,87,175,4,84,3,143,160,188,186,111,86,41,4,105,170,144,82,
-  12,139,253,197,18,36,0,154,18,235,85,143,122,105,21,85,127,42,231,28,253,36,65,88,59,88,0,104,183,219,98,103,
-  103,199,68,177,98,112,234,248,243,100,136,236,190,226,14,184,68,199,199,67,155,36,195,7,187,237,118,45,12,195,120,14,
-  0,120,81,20,253,244,203,161,248,76,173,227,255,182,255,202,31,187,103,228,192,2,88,157,30,28,63,248,225,235,226,53,
-  49,251,53,107,183,219,205,96,109,237,205,90,208,218,116,56,41,133,92,201,18,200,141,49,42,75,107,185,16,121,62,58,
-  233,1,127,133,97,216,91,0,152,66,72,32,96,146,153,124,21,0,83,5,64,10,168,48,12,207,44,45,241,255,207,233,
-  235,6,248,7,188,50,165,151,203,8,55,43,0,0,0,0,73,69,78,68,174,66,96,130,
-};
-
-const uint8_t file[844] = {
-  137,80,78,71,13,10,26,10,0,0,0,13,73,72,68,82,0,0,0,32,0,0,0,32,8,6,0,0,0,115,122,122,
-  244,0,0,0,4,115,66,73,84,8,8,8,8,124,8,100,136,0,0,3,3,73,68,65,84,88,133,229,151,79,110,212,
-  48,24,197,127,182,227,56,81,39,116,36,132,0,169,167,226,2,101,209,93,239,192,150,37,171,46,43,245,4,92,164,183,
-  40,82,89,21,36,134,84,76,18,59,44,90,91,142,243,103,50,21,59,62,201,138,227,120,236,247,189,247,252,37,3,255,
-  123,136,116,224,234,234,234,67,150,101,55,64,165,148,66,74,137,115,14,107,109,104,93,215,133,107,220,95,26,3,118,93,
-  215,125,188,185,185,249,26,239,151,141,16,9,113,125,113,113,81,61,247,195,120,223,247,131,121,241,253,202,126,117,121,121,
-  121,13,44,3,176,214,110,1,110,111,111,17,66,32,165,12,87,41,37,74,41,148,82,8,33,80,74,177,221,110,209,90,
-  15,158,167,125,33,4,251,253,158,166,105,182,233,126,50,29,232,251,30,33,68,104,64,88,208,55,207,78,215,117,24,99,
-  70,191,247,109,77,140,24,112,206,133,13,98,6,210,38,165,164,40,138,48,127,42,60,16,159,200,20,168,17,3,206,185,
-  17,11,177,4,49,40,231,28,77,211,28,204,114,137,141,17,0,107,109,232,207,177,224,159,41,165,208,90,31,100,97,9,
-  200,36,3,233,230,233,189,181,150,60,207,41,203,146,186,174,233,186,46,204,91,202,124,21,0,207,192,156,9,1,140,49,
-  20,69,65,93,215,100,89,70,158,231,3,173,231,50,127,17,128,88,123,127,239,105,55,198,96,140,161,109,219,85,174,95,
-  13,96,202,132,41,35,62,218,182,5,240,213,110,113,211,163,25,72,179,23,66,208,52,13,90,235,80,92,252,243,199,199,
-  199,229,244,97,210,172,7,37,136,93,47,165,164,170,42,178,44,67,8,193,201,201,73,232,151,101,57,152,63,197,194,139,
-  37,136,77,168,181,198,90,27,42,97,215,117,97,222,210,113,92,205,128,215,50,205,222,103,16,75,226,156,11,12,120,64,
-  62,203,41,38,142,146,32,213,190,239,123,172,181,225,69,228,105,143,193,214,117,141,115,110,86,134,163,0,196,11,11,33,
-  200,178,140,170,170,6,115,235,186,14,114,120,79,40,165,70,155,28,205,64,74,181,7,32,165,28,248,195,24,67,158,231,
-  1,172,82,106,117,89,158,5,144,158,231,212,7,113,40,165,6,12,120,169,210,170,184,20,171,142,161,47,54,177,254,254,
-  236,123,205,227,58,177,219,237,86,3,152,250,34,26,80,37,132,96,179,217,80,150,229,200,96,155,205,6,173,245,96,190,
-  49,38,48,177,6,196,162,9,189,15,178,44,27,140,123,96,109,219,142,36,136,95,90,107,98,214,3,177,9,211,240,99,
-  190,8,77,197,161,162,52,11,32,149,96,238,37,3,79,18,164,0,60,232,135,135,135,17,107,171,1,132,135,82,6,157,
-  227,240,0,119,187,221,8,160,63,5,167,167,167,65,138,163,62,201,226,5,189,235,167,88,232,251,30,173,245,36,56,95,
-  71,252,247,229,82,164,167,160,146,82,254,234,251,254,213,217,217,89,24,156,211,185,40,138,197,197,211,242,155,231,249,14,
-  120,7,252,4,246,41,128,10,120,115,127,127,255,249,252,252,252,19,80,46,174,190,50,242,60,167,105,26,132,16,127,238,
-  238,238,190,0,239,1,5,124,7,92,156,90,14,188,5,94,3,91,192,60,79,252,23,241,135,167,100,107,224,7,240,13,
-  248,13,19,127,78,159,55,46,158,1,173,43,103,135,195,1,45,79,180,239,129,96,140,191,182,58,238,12,241,249,173,246,
-  0,0,0,0,73,69,78,68,174,66,96,130,
-};
-
-const uint8_t archive[1067] = {
-  137,80,78,71,13,10,26,10,0,0,0,13,73,72,68,82,0,0,0,32,0,0,0,32,8,6,0,0,0,115,122,122,
-  244,0,0,0,4,115,66,73,84,8,8,8,8,124,8,100,136,0,0,3,226,73,68,65,84,88,133,237,150,95,136,212,
-  85,20,199,63,231,222,251,251,253,102,102,103,255,142,166,27,150,150,88,144,102,127,31,218,40,49,200,36,136,68,200,30,
-  20,218,212,13,89,84,8,138,30,138,222,10,122,232,205,212,44,89,55,145,192,146,32,168,232,37,42,208,212,84,212,165,
-  32,162,168,101,21,203,221,213,253,51,237,56,51,191,223,189,61,252,134,217,217,117,86,155,26,240,161,253,194,225,222,115,
-  239,253,157,251,189,231,158,223,57,23,102,49,139,255,59,228,90,147,189,47,164,151,26,63,120,51,12,243,107,156,184,60,
-  14,59,229,75,135,2,130,234,70,5,45,114,196,89,121,233,185,247,198,142,215,68,96,223,150,166,37,126,144,58,168,148,
-  190,115,249,163,107,82,205,109,237,68,81,136,32,24,63,0,229,163,76,2,209,1,202,76,138,232,4,202,11,80,58,32,
-  180,206,253,240,117,143,244,159,250,232,47,27,113,209,138,125,165,115,87,246,208,117,9,236,239,106,190,77,18,254,137,101,
-  43,58,91,231,45,186,67,141,12,156,117,103,15,127,38,78,0,231,112,81,30,163,4,163,193,211,130,209,130,167,193,76,
-  235,39,146,45,100,30,123,195,93,56,190,215,133,131,167,213,207,231,70,115,69,203,182,141,239,142,247,84,238,167,43,149,
-  3,93,201,5,36,147,199,239,93,221,221,182,248,129,213,122,252,66,31,167,191,249,88,10,133,43,216,40,196,218,8,37,
-  160,68,80,10,180,18,148,18,180,2,53,173,47,46,79,225,242,79,114,83,199,139,146,255,227,20,173,137,208,27,30,203,
-  175,122,250,65,51,240,233,201,98,223,85,30,120,191,171,97,94,50,149,60,185,108,229,166,246,246,37,29,218,141,253,138,
-  23,52,80,140,38,157,100,157,5,107,65,25,68,123,177,168,88,40,181,162,13,136,46,27,78,54,207,167,144,27,167,175,
-  119,45,162,52,191,93,24,155,112,214,110,234,220,147,61,88,38,208,179,49,61,55,104,76,29,107,91,176,116,161,56,114,
-  67,3,125,233,71,158,121,141,230,185,183,146,27,57,55,121,95,162,64,52,136,138,5,13,74,226,13,69,202,115,18,7,
-  40,0,65,67,134,200,193,151,59,214,227,108,33,151,12,252,68,54,151,15,113,172,239,220,147,61,36,123,55,55,181,25,
-  99,135,1,252,32,117,62,44,230,191,187,253,190,39,215,221,179,122,27,209,200,47,224,44,206,89,112,46,182,234,92,172,
-  151,250,255,100,204,207,220,69,118,228,34,95,125,240,242,69,92,120,38,178,246,9,0,177,108,85,198,68,111,3,160,100,
-  205,149,98,126,69,208,152,121,106,249,170,173,68,163,191,99,139,19,216,98,14,23,94,41,139,13,167,233,197,220,117,199,
-  242,127,158,165,113,206,34,238,94,185,161,69,180,30,182,74,47,22,56,234,20,59,167,252,5,7,182,207,57,252,248,230,
-  221,15,167,51,11,175,153,31,254,11,190,221,191,61,55,116,254,199,141,157,187,42,98,0,96,95,119,211,67,98,237,81,
-  165,117,81,68,121,162,52,206,70,53,152,118,51,206,136,196,182,28,46,111,163,40,0,120,126,79,86,166,16,112,32,31,
-  118,55,183,0,20,109,116,169,99,237,171,12,28,235,169,110,177,70,220,124,255,58,190,255,124,7,158,210,109,0,158,248,
-  197,103,119,13,102,1,76,153,37,56,118,143,94,6,232,221,146,38,145,74,147,76,165,235,66,32,72,54,2,176,161,100,
-  191,18,230,170,213,37,40,109,240,147,13,117,33,160,141,55,227,220,140,4,180,241,240,19,245,241,128,54,126,237,4,140,
-  246,8,18,245,241,128,249,247,30,184,145,4,60,143,160,78,49,96,252,242,21,248,64,225,90,4,2,160,21,226,138,103,
-  252,20,184,90,114,65,21,136,66,169,114,209,189,5,24,3,46,1,81,53,2,205,64,198,41,111,112,184,255,204,220,204,
-  194,142,210,112,69,146,113,149,9,199,149,117,87,117,77,220,14,245,247,97,197,27,2,230,151,246,140,74,36,166,16,208,
-  37,221,251,226,244,196,91,216,157,175,11,97,75,141,231,173,10,135,25,249,228,196,196,59,64,2,240,168,120,135,76,207,
-  249,173,64,166,212,6,196,119,86,15,20,0,5,100,137,79,126,30,40,86,35,0,144,4,90,74,155,207,24,164,53,34,
-  36,190,143,81,96,28,38,31,183,215,171,122,245,170,138,51,87,170,89,220,104,252,13,162,179,143,166,193,167,182,66,0,
-  0,0,0,73,69,78,68,174,66,96,130,
-};
-
-};

ananke/resource/resource.hpp

@@ -1,7 +0,0 @@
-namespace resource {
-  extern const uint8_t home[606];
-  extern const uint8_t up[652];
-  extern const uint8_t folder[1176];
-  extern const uint8_t file[844];
-  extern const uint8_t archive[1067];
-};

ananke/sufami-turbo.cpp

@@ -1,90 +0,0 @@
-void Ananke::copySufamiTurboSaves(const string &pathname) {
-  if(!file::exists({pathname, "save.ram"})) {
-    if(file::exists({information.path, nall::basename(information.name), ".srm"})) {
-      file::copy({information.path, nall::basename(information.name), ".srm"}, {pathname, "save.ram"});
-    }
-  }
-}
-
-string Ananke::createSufamiTurboDatabase(vector<uint8_t> &buffer, Markup::Node &document, const string &manifest) {
-  string pathname = {
-    libraryPath, "Sufami Turbo/",
-    document["release/information/name"].text(),
-    " (", document["release/information/region"].text(), ")",
-    " (", document["release/information/revision"].text(), ")",
-    ".st/"
-  };
-  directory::create(pathname);
-
-  //strip "release" root node from database entry (since a single game manifest isn't part of a database)
-  string markup = manifest;
-  markup.replace("\n  ", "\n");
-  markup.replace("information", "\ninformation");
-  markup.ltrim<1>("release\n");
-
-  file::write({pathname, "manifest.bml"}, markup);
-  file::write({pathname, "program.rom"}, buffer);
-  copySufamiTurboSaves(pathname);
-
-  return pathname;
-}
-
-string Ananke::createSufamiTurboHeuristic(vector<uint8_t> &buffer) {
-  string pathname = {
-    libraryPath, "Sufami Turbo/",
-    nall::basename(information.name),
-    ".st/"
-  };
-  directory::create(pathname);
-
-  file::write({pathname, "manifest.bml"}, {
-    "unverified\n",
-    "\n",
-    "cartridge\n",
-    "  rom name=program.rom size=0x", hex(buffer.size()), "\n",
-    "  ram name=save.ram size=0x2000\n",
-    "\n",
-    "information\n",
-    "  title: ", nall::basename(information.name), "\n"
-  });
-  file::write({pathname, "program.rom"}, buffer);
-  copySufamiTurboSaves(pathname);
-
-  return pathname;
-}
-
-string Ananke::openSufamiTurbo(vector<uint8_t> &buffer) {
-  string sha256 = nall::sha256(buffer.data(), buffer.size());
-
-  string databaseText = string::read({configpath(), "ananke/database/Sufami Turbo.bml"}).strip();
-  if(databaseText.empty()) databaseText = string{Database::SufamiTurbo}.strip();
-  lstring databaseItem = databaseText.split("\n\n");
-
-  for(auto &item : databaseItem) {
-    item.append("\n");
-    auto document = Markup::Document(item);
-
-    if(document["release/information/sha256"].text() == sha256) {
-      return createSufamiTurboDatabase(buffer, document, item);
-    }
-  }
-
-  return createSufamiTurboHeuristic(buffer);
-}
-
-string Ananke::syncSufamiTurbo(const string &pathname) {
-  auto buffer = file::read({pathname, "program.rom"});
-  if(buffer.size() == 0) return "";
-
-  auto save = file::read({pathname, "save.ram"});
-  if(save.size() == 0) save = file::read({pathname, "save.rwm"});
-
-  directory::remove(pathname);
-  information.path = pathname;
-  information.name = notdir(string{pathname}.rtrim<1>("/"));
-  string outputPath = openSufamiTurbo(buffer);
-
-  if(save.size()) file::write({outputPath, "save.ram"}, save);
-
-  return outputPath;
-}

ananke/super-famicom.cpp

@@ -1,215 +0,0 @@
-void Ananke::copySuperFamicomSaves(const string &pathname) {
-  if(!file::exists({pathname, "save.ram"})) {
-    if(file::exists({information.path, nall::basename(information.name), ".srm"})) {
-      file::copy({information.path, nall::basename(information.name), ".srm"}, {pathname, "save.ram"});
-    }
-  }
-
-  if(!file::exists({pathname, "rtc.ram"})) {
-    if(file::exists({information.path, nall::basename(information.name), ".rtc"})) {
-      file::copy({information.path, nall::basename(information.name), ".rtc"}, {pathname, "rtc.ram"});
-    }
-  }
-}
-
-string Ananke::createSuperFamicomDatabase(vector<uint8_t> &buffer, Markup::Node &document, const string &manifest) {
-  string pathname = {
-    libraryPath, "Super Famicom/",
-    document["release/information/name"].text(),
-    " (", document["release/information/region"].text(), ")",
-    " (", document["release/information/revision"].text(), ")",
-    ".sfc/"
-  };
-  directory::create(pathname);
-
-  //strip "release" root node from database entry (since a single game manifest isn't part of a database)
-  string markup = manifest;
-  markup.replace("\n  ", "\n");
-  markup.replace("information", "\ninformation");
-  markup.ltrim<1>("release\n");
-
-  file::write({pathname, "manifest.bml"}, markup);
-
-  unsigned offset = 0;
-  for(auto &node : document["release/information/configuration"]) {
-    if(node.name != "rom") continue;
-    string name = node["name"].text();
-    unsigned size = node["size"].decimal();
-    file::write({pathname, name}, buffer.data() + offset, size);
-    offset += size;
-  }
-
-  copySuperFamicomSaves(pathname);
-  return pathname;
-}
-
-string Ananke::createSuperFamicomHeuristic(vector<uint8_t> &buffer) {
-  string pathname = {
-    libraryPath, "Super Famicom/",
-    nall::basename(information.name),
-    ".sfc/"
-  };
-  directory::create(pathname);
-
-  if((buffer.size() & 0x7fff) == 512) buffer.remove(0, 512);  //strip copier header, if present
-
-  SuperFamicomCartridge info(buffer.data(), buffer.size());
-  string markup = {"unverified\n\n", info.markup};
-  markup.append("\ninformation\n  title: ", nall::basename(information.name), "\n");
-  if(!information.manifest.empty()) markup = information.manifest;  //override with embedded beat manifest, if one exists
-  information.manifest = markup;  //save for use with firmware routine below
-
-  file::write({pathname, "manifest.bml"}, markup);
-
-  if(!markup.find("spc7110")) {
-    file::write({pathname, "program.rom"}, buffer.data(), info.rom_size);
-  } else {
-    file::write({pathname, "program.rom"}, buffer.data(), 0x100000);
-    file::write({pathname, "data.rom"}, buffer.data() + 0x100000, info.rom_size - 0x100000);
-  }
-
-  createSuperFamicomHeuristicFirmware(buffer, pathname, info.firmware_appended);
-  copySuperFamicomSaves(pathname);
-
-  return pathname;
-}
-
-void Ananke::createSuperFamicomHeuristicFirmware(vector<uint8_t> &buffer, const string &pathname, bool firmware_appended) {
-  auto copyFirmwareInternal = [&](const string &name, unsigned programSize, unsigned dataSize, unsigned bootSize) {
-    //firmware appended directly onto .sfc file
-    string basename = nall::basename(name);
-    if(programSize) file::write({pathname, basename, ".program.rom"}, buffer.data() + buffer.size() - programSize - dataSize - bootSize, programSize);
-    if(dataSize) file::write({pathname, basename, ".data.rom"}, buffer.data() + buffer.size() - dataSize - bootSize, dataSize);
-    if(bootSize) file::write({pathname, basename, ".boot.rom"}, buffer.data() + buffer.size() - bootSize, bootSize);
-  };
-
-  auto copyFirmwareExternal = [&](const string &name, unsigned programSize, unsigned dataSize, unsigned bootSize) {
-    //firmware stored in external file
-    auto buffer = file::read({information.path, name});  //try and read from the containing directory
-    if(buffer.size() == 0) buffer = extractFile(name);  //try and read from the containing archive, if one exists
-    if(buffer.size() == 0) {
-      if(thread::primary()) MessageWindow().setText({
-        "Error: ", information.name, "\n\n",
-        "Required firmware ", name, " not found. Game will not be playable!\n\n",
-        "You must obtain this file, and place it in the same folder as this game."
-      }).error();
-      return;
-    }
-
-    string basename = nall::basename(name);
-    if(programSize) file::write({pathname, basename, ".program.rom"}, buffer.data(), programSize);
-    if(dataSize) file::write({pathname, basename, ".data.rom"}, buffer.data() + programSize, dataSize);
-    if(bootSize) file::write({pathname, basename, ".boot.rom"}, buffer.data() + programSize + dataSize, bootSize);
-  };
-
-  auto copyFirmware = [&](const string &name, unsigned programSize, unsigned dataSize, unsigned bootSize = 0) {
-    if(firmware_appended == 1) copyFirmwareInternal(name, programSize, dataSize, bootSize);
-    if(firmware_appended == 0) copyFirmwareExternal(name, programSize, dataSize, bootSize);
-  };
-
-  string markup = information.manifest;
-  if(markup.find("dsp1.program.rom" )) copyFirmware("dsp1.rom",  0x001800, 0x000800);
-  if(markup.find("dsp1b.program.rom")) copyFirmware("dsp1b.rom", 0x001800, 0x000800);
-  if(markup.find("dsp2.program.rom" )) copyFirmware("dsp2.rom",  0x001800, 0x000800);
-  if(markup.find("dsp3.program.rom" )) copyFirmware("dsp3.rom",  0x001800, 0x000800);
-  if(markup.find("dsp4.program.rom" )) copyFirmware("dsp4.rom",  0x001800, 0x000800);
-  if(markup.find("st010.program.rom")) copyFirmware("st010.rom", 0x00c000, 0x001000);
-  if(markup.find("st011.program.rom")) copyFirmware("st011.rom", 0x00c000, 0x001000);
-  if(markup.find("st018.program.rom")) copyFirmware("st018.rom", 0x020000, 0x008000);
-  if(markup.find("cx4.data.rom"     )) copyFirmware("cx4.rom",   0x000000, 0x000c00);
-  if(markup.find("sgb.boot.rom"     )) copyFirmware("sgb.rom",   0x000000, 0x000000, 0x000100);
-}
-
-string Ananke::openSuperFamicom(vector<uint8_t> &buffer) {
-  string sha256 = nall::sha256(buffer.data(), buffer.size());
-
-  string databaseText = string::read({configpath(), "ananke/database/Super Famicom.bml"}).strip();
-  if(databaseText.empty()) databaseText = string{Database::SuperFamicom}.strip();
-  lstring databaseItem = databaseText.split("\n\n");
-
-  for(auto &item : databaseItem) {
-    item.append("\n");
-    auto document = Markup::Document(item);
-
-    if(document["release/information/sha256"].text() == sha256) {
-      return createSuperFamicomDatabase(buffer, document, item);
-    }
-  }
-
-  return createSuperFamicomHeuristic(buffer);
-}
-
-string Ananke::syncSuperFamicom(const string &pathname) {
-  if(file::exists({pathname, "msu1.rom"})) return "";  //cannot update MSU1 games
-
-  vector<uint8_t> buffer;
-
-  auto append = [&](string filename) {
-    filename = {pathname, filename};
-    auto data = file::read(filename);
-    if(data.size() == 0) return;  //file does not exist
-
-    unsigned position = buffer.size();
-    buffer.resize(buffer.size() + data.size());
-    memcpy(buffer.data() + position, data.data(), data.size());
-  };
-
-  append("program.rom");
-  append("data.rom");
-
-  append("dsp1.rom");
-  append("dsp1.program.rom");
-  append("dsp1.data.rom");
-
-  append("dsp1b.rom");
-  append("dsp1b.program.rom");
-  append("dsp1b.data.rom");
-
-  append("dsp2.rom");
-  append("dsp2.program.rom");
-  append("dsp2.data.rom");
-
-  append("dsp3.rom");
-  append("dsp3.program.rom");
-  append("dsp3.data.rom");
-
-  append("dsp4.rom");
-  append("dsp4.program.rom");
-  append("dsp4.data.rom");
-
-  append("st010.rom");
-  append("st010.program.rom");
-  append("st010.data.rom");
-
-  append("st011.rom");
-  append("st011.program.rom");
-  append("st011.data.rom");
-
-  append("st018.rom");
-  append("st018.program.rom");
-  append("st018.data.rom");
-
-  append("cx4.rom");
-  append("cx4.data.rom");
-
-  append("sgb.rom");
-  append("sgb.boot.rom");
-
-  if(buffer.size() == 0) return "";
-
-  auto save = file::read({pathname, "save.ram"});
-  if(save.size() == 0) save = file::read({pathname, "save.rwm"});
-
-  auto rtc = file::read({pathname, "rtc.ram"});
-  if(rtc.size() == 0) rtc= file::read({pathname, "rtc.rwm"});
-
-  directory::remove(pathname);
-  information.path = pathname;
-  information.name = notdir(string{pathname}.rtrim<1>("/"));
-  string outputPath = openSuperFamicom(buffer);
-
-  if(save.size()) file::write({outputPath, "save.ram"}, save);
-  if(rtc.size()) file::write({outputPath, "rtc.ram"}, save);
-
-  return outputPath;
-}

bsnes/Database/BS Memory.bml

@@ -0,0 +1,44 @@
+database
+  revision: 2020-01-01
+
+//BS Memory (JPN)
+
+database
+  revision: 2018-04-14
+
+game
+  sha256:   80c34b50817d58820bc8c88d2d9fa462550b4a76372e19c6467cbfbc8cf5d9ef
+  label:    鮫亀 キャラカセット
+  name:     Same Game - Chara Cassette
+  region:   BSMC-ZS5J-JPN
+  revision: BSMC-ZS5J-0
+  board:    BSMC-CR-01
+    memory
+      type: ROM
+      size: 0x80000
+      content: Program
+
+game
+  sha256:   859c7f7b4771d920a5bdb11f1d247ab6b43fb026594d1062f6f72d32cd340a0a
+  label:    鮫亀 キャラデータ集
+  name:     Same Game - Chara Data Shuu
+  region:   BSMC-YS5J-JPN
+  revision: BSMC-YS5J-0
+  board:    BSMC-CR-01
+    memory
+      type: ROM
+      size: 0x80000
+      content: Program
+
+game
+  sha256:   c92a15fdd9b0133f9ea69105d0230a3acd1cdeef98567462eca86ea02a959e4e
+  label:    SDガンダム ジーネクスト ユニット&マップコレクション
+  name:     SD Gundam G Next - Unit & Map Collection
+  region:   BSMC-ZX3J-JPN
+  revision: BSMC-ZX3J-0
+  board:    BSMC-BR-01
+    memory
+      type: ROM
+      size: 0x80000
+      content: Program
+

bsnes/Database/Sufami Turbo.bml

@@ -0,0 +1,213 @@
+database
+  revision: 2020-01-01
+
+//Sufami Turbo (JPN)
+
+database
+  revision: 2018-04-14
+
+game
+  sha256:   f73bda08743565e0bd101632ebbac2d363d703a3ab39d23f49d95217cab29269
+  label:    美少女戦士セーラームーン セーラースターズ ふわふわパニック2
+  name:     Bishoujo Senshi Sailor Moon Sailor Stars - Fuwafuwa Panic 2
+  region:   SFT-0112-JPN
+  revision: SAILOR MOON
+  board:    PT-911
+    memory
+      type: ROM
+      size: 0x100000
+      content: Program
+  note: Unlinkable
+
+game
+  sha256:   afb3f2a83b5bfcb1b8829b6995f108cc4d64ca322d1ba4a50b83af6e1f2e89bd
+  label:    クレヨンしんちゃん 長ぐつドボン!!
+  name:     Crayon Shin-chan - Nagagutsu Dobon!!
+  region:   SFT-0113-JPN
+  revision: SHINCYAN
+  board:    PT-911
+    memory
+      type: ROM
+      size: 0x80000
+      content: Program
+  note: Unlinkable
+
+game
+  sha256:   d93b3a570e7cf343f680ab0768a50b77e3577f9c555007e2de3decd6bc4765c8
+  label:    ゲゲゲの鬼太郎 妖怪ドンジャラ
+  name:     Gegege no Kitarou - Youkai Donjara
+  region:   SFT-0106-JPN
+  revision: KITARO DONJYAR
+  board:    PT-911
+    memory
+      type: ROM
+      size: 0x80000
+      content: Program
+  note: Unlinkable
+
+game
+  sha256:   89aecd4e23d8219c8de3e71bb75db3dfe667d51c1eba4ea7239d2f772743d0cc
+  label:    激走戦隊カーレンジャ 全開!レーサー戦士
+  name:     Gekisou Sentai Carranger - Zenkai! Racer Senshi
+  region:   SFT-0109-JPN
+  revision: CAR RANGER
+  board:    PT-911
+    memory
+      type: ROM
+      size: 0x80000
+      content: Program
+  note: Unlinkable
+
+game
+  sha256:   602b20b788640f5743487108a10f3f77bca5ce2d24208b25b1ca498a96eb0d69
+  label:    ぽいぽい忍者ワールド
+  name:     Poi Poi Ninja World
+  region:   SFT-0103-JPN
+  revision: POI POI NINJYA
+  board:    PT-911
+    memory
+      type: ROM
+      size: 0x80000
+      content: Program
+    memory
+      type: RAM
+      size: 0x800
+      content: Save
+  note: Linkable: SFT-0103-JPN
+
+game
+  sha256:   2a9d7c9a61318861028a73ca03e32a48cff162d76cba36fbaab8690b212efe9b
+  label:    SDガンダムジェネレーション アクシズ戦記
+  name:     SD Gundam Generation - Axis Senki
+  region:   SFT-0107-JPN
+  revision: GUNDAM C
+  board:    PT-912
+    memory
+      type: ROM
+      size: 0x80000
+      content: Program
+    memory
+      type: RAM
+      size: 0x2000
+      content: Save
+  note: Linkable: SFT-0104-JPN, SFT-0105-JPN, SFT-0107-JPN, SFT-0108-JPN, SFT-0110-JPN, SFT-0111-JPN
+
+game
+  sha256:   60ac017c18f534e8cf24ca7f38e22ce92db95ea6c30b2d59d76f13c4f1c8a6e4
+  label:    SDガンダムジェネレーション バビロニア建国戦記
+  name:     SD Gundam Generation - Babylonia Kenkoku Senki
+  region:   SFT-0108-JPN
+  revision: GUNDAM D
+  board:    PT-912
+    memory
+      type: ROM
+      size: 0x80000
+      content: Program
+    memory
+      type: RAM
+      size: 0x2000
+      content: Save
+  note: Linkable: SFT-0104-JPN, SFT-0105-JPN, SFT-0107-JPN, SFT-0108-JPN, SFT-0110-JPN, SFT-0111-JPN
+
+game
+  sha256:   e639b5d5d722432b6809ccc6801dc584e1a3016379f34b335ed2dfa73b1ebf69
+  label:    SDガンダムジェネレーション コロニー格闘記
+  name:     SD Gundam Generation - Colony Kakutouki
+  region:   SFT-0111-JPN
+  revision: GUNDAM F
+  board:    PT-912
+    memory
+      type: ROM
+      size: 0x80000
+      content: Program
+    memory
+      type: RAM
+      size: 0x2000
+      content: Save
+  note: Linkable: SFT-0104-JPN, SFT-0105-JPN, SFT-0107-JPN, SFT-0108-JPN, SFT-0110-JPN, SFT-0111-JPN
+
+game
+  sha256:   8547a08ed11fe408eac282a90ac46654bd2e5f49bda3aec8e5edf166a0a4b9af
+  label:    SDガンダムジェネレーション グリプス戦記
+  name:     SD Gundam Generation - Gryps Senki
+  region:   SFT-0105-JPN
+  revision: GUNDAM B
+  board:    PT-912
+    memory
+      type: ROM
+      size: 0x80000
+      content: Program
+    memory
+      type: RAM
+      size: 0x2000
+      content: Save
+  note: Linkable: SFT-0104-JPN, SFT-0105-JPN, SFT-0107-JPN, SFT-0108-JPN, SFT-0110-JPN, SFT-0111-JPN
+
+game
+  sha256:   3e82215bed08274874b30d461fc4a965c6bca932229da5d46d56e36f484d65eb
+  label:    SDガンダムジェネレーション 一年戦争記
+  name:     SD Gundam Generation - Ichinen Sensouki
+  region:   SFT-0104-JPN
+  revision: GUNDAM A
+  board:    PT-912
+    memory
+      type: ROM
+      size: 0x80000
+      content: Program
+    memory
+      type: RAM
+      size: 0x2000
+      content: Save
+  note: Linkable: SFT-0104-JPN, SFT-0105-JPN, SFT-0107-JPN, SFT-0108-JPN, SFT-0110-JPN, SFT-0111-JPN
+
+game
+  sha256:   5951a58a91d8e397d0a237ccc2b1248e17c7312cb9cc11cbc350200a97b4e021
+  label:    SDガンダムジェネレーション ザンスカール戦記
+  name:     SD Gundam Generation - Zanscare Senki
+  region:   SFT-0110-JPN
+  revision: GUNDAM E
+  board:    PT-912
+    memory
+      type: ROM
+      size: 0x80000
+      content: Program
+    memory
+      type: RAM
+      size: 0x2000
+      content: Save
+  note: Linkable: SFT-0104-JPN, SFT-0105-JPN, SFT-0107-JPN, SFT-0108-JPN, SFT-0110-JPN, SFT-0111-JPN
+
+game
+  sha256:   2fec5f2bc7dee010af10569a3d2bc18715a79a126940800c3eade5abbd625e3f
+  label:    SDウルトラバトル セブン伝説
+  name:     SD Ultra Battle - Seven Densetsu
+  region:   SFT-0102-JPN
+  revision: ULTRA SEVEN 1
+  board:    PT-911
+    memory
+      type: ROM
+      size: 0x80000
+      content: Program
+    memory
+      type: RAM
+      size: 0x800
+      content: Save
+  note: Linkable: SFT-0101-JPN, SFT-0102-JPN
+
+game
+  sha256:   2bb55214fb668ca603d7b944b14f105dfb10b987a8902d420fe4ae1cb69c1d4a
+  label:    SDウルトラバトル ウルトラマン伝説
+  name:     SD Ultra Battle - Ultraman Densetsu
+  region:   SFT-0101-JPN
+  revision: ULTRA MAN 1
+  board:    PT-911
+    memory
+      type: ROM
+      size: 0x80000
+      content: Program
+    memory
+      type: RAM
+      size: 0x800
+      content: Save
+  note: Linkable: SFT-0101-JPN, SFT-0102-JPN
+

bsnes/GNUmakefile

@@ -0,0 +1,64 @@
+target := bsnes
+binary := application
+build := performance
+openmp := true
+local := true
+flags += -I. -I..
+
+# in order for this to work, obj/lzma.o must be omitted or bsnes will hang on startup.
+# further, only the X-Video driver works reliably. OpenGL 3.2, OpenGL 2.0, and XShm crash bsnes.
+ifeq ($(profile),true)
+  flags += -pg
+  options += -pg
+endif
+
+# binaries built with this flag are faster, but are not portable to multiple machines.
+ifeq ($(local),true)
+  flags += -march=native
+endif
+
+nall.path := ../nall
+include $(nall.path)/GNUmakefile
+
+ifeq ($(platform),windows)
+  ifeq ($(binary),application)
+    options += -luuid -lkernel32 -luser32 -lgdi32 -lcomctl32 -lcomdlg32 -lshell32
+    options += -Wl,-enable-auto-import
+    options += -Wl,-enable-runtime-pseudo-reloc
+  else ifeq ($(binary),library)
+    options += -shared
+  endif
+else ifeq ($(platform),macos)
+  ifeq ($(binary),application)
+  else ifeq ($(binary),library)
+    flags += -fPIC
+    options += -dynamiclib
+  endif
+else ifneq ($(filter $(platform),linux bsd),)
+  ifeq ($(binary),application)
+    options += -Wl,-export-dynamic
+    options += -lX11 -lXext
+  else ifeq ($(binary),library)
+    flags += -fPIC
+    options += -shared
+  endif
+endif
+
+objects := libco emulator filter lzma
+
+obj/libco.o: ../libco/libco.c
+obj/emulator.o: emulator/emulator.cpp
+obj/filter.o: filter/filter.cpp
+obj/lzma.o: lzma/lzma.cpp
+
+include sfc/GNUmakefile
+include gb/GNUmakefile
+include processor/GNUmakefile
+
+ui := target-$(target)
+include $(ui)/GNUmakefile
+-include obj/*.d
+
+clean:
+	$(call delete,obj/*)
+	$(call delete,out/*)

bsnes/Locale/Japanese.bml

@@ -0,0 +1,127 @@
+locale
+  language: 日本語
+
+namespace: MessageDialog
+  map
+    input: Yes
+    value: はい
+  map
+    input: No
+    value: いいえ
+  map
+    input: Cancel
+    value: キャンセル
+
+namespace: BrowserDialog
+  map
+    input: Open
+    value: 開く
+  map
+    input: Save
+    value: 保存
+  map
+    input: Select
+    value: 選択
+  map
+    input: Cancel
+    value: キャンセル
+
+namespace: Program
+  map
+    input: Unloaded
+    value: アンロードされる
+  map
+    input: Paused
+    value: ポーズ
+
+namespace: Presentation
+  map
+    input: System
+    value: システム
+  map
+    input: Load Game
+    value: ゲームを読み込み
+  map
+    input: Load Recent Game
+    value: 最新ゲームを読み込み
+  map
+    input: empty
+    value: なし
+  map
+    input: Clear List
+    value: 全部を消す
+  map
+    input: Reset System
+    value: システムをリセット
+  map
+    input: Unload Game
+    value: ゲームをアンロード
+  map
+    input: Controller Port 1
+    value: コントローラポート1
+  map
+    input: Controller Port 2
+    value: コントローラポート2
+  map
+    input: Expansion Port
+    value: 拡張ポート
+  map
+    input: Gamepad
+    value: ゲームパッド
+  map
+    input: Mouse
+    value: マウス
+  map
+    input: Super Multitap
+    value: スーパーマルチタップ
+  map
+    input: Super Scope
+    value: スーパースコップ
+  map
+    input: Justifier
+    value: 1挺のジャスティファイアー
+  map
+    input: Justifiers
+    value: 2挺のジャスティファイアー
+  map
+    input: None
+    value: なし
+  map
+    input: Satellaview
+    value: サテラビュー
+  map
+    input: Quit
+    value: 終了
+  map
+    input: Settings
+    value: 設定
+  map
+    input: Tools
+    value: ツール
+  map
+    input: Help
+    value: ヘルプ
+  map
+    input: Documentation
+    value: オンラインマニュアル
+  map
+    input: About
+    value: 情報
+
+namespace: AboutWindow
+  map
+    input: About {0}
+    value: {0}について
+  map
+    input: Version
+    value: バージョン
+  map
+    input: Author
+    value: 作者
+  map
+    input: License
+    value: ライセンス
+  map
+    input: Website
+    value: 公式サイト
+

bsnes/emulator/audio/audio.cpp

@@ -0,0 +1,75 @@
+#define double float
+
+namespace Emulator {
+
+#include "stream.cpp"
+Audio audio;
+
+Audio::~Audio() {
+  reset(nullptr);
+}
+
+auto Audio::reset(Interface* interface) -> void {
+  _interface = interface;
+  _streams.reset();
+  _channels = 0;
+}
+
+auto Audio::setFrequency(double frequency) -> void {
+  _frequency = frequency;
+  for(auto& stream : _streams) {
+    stream->setFrequency(stream->inputFrequency, frequency);
+  }
+}
+
+auto Audio::setVolume(double volume) -> void {
+  _volume = volume;
+}
+
+auto Audio::setBalance(double balance) -> void {
+  _balance = balance;
+}
+
+auto Audio::createStream(uint channels, double frequency) -> shared_pointer<Stream> {
+  _channels = max(_channels, channels);
+  shared_pointer<Stream> stream = new Stream;
+  stream->reset(channels, frequency, _frequency);
+  _streams.append(stream);
+  return stream;
+}
+
+auto Audio::process() -> void {
+  while(_streams) {
+    for(auto& stream : _streams) {
+      if(!stream->pending()) return;
+    }
+
+    double samples[_channels];
+    for(auto& sample : samples) sample = 0.0;
+
+    for(auto& stream : _streams) {
+      double buffer[_channels];
+      uint length = stream->read(buffer), offset = 0;
+
+      for(auto& sample : samples) {
+        sample += buffer[offset];
+        if(++offset >= length) offset = 0;
+      }
+    }
+
+    for(auto c : range(_channels)) {
+      samples[c] = max(-1.0, min(+1.0, samples[c] * _volume));
+    }
+
+    if(_channels == 2) {
+      if(_balance < 0.0) samples[1] *= 1.0 + _balance;
+      if(_balance > 0.0) samples[0] *= 1.0 - _balance;
+    }
+
+    platform->audioFrame(samples, _channels);
+  }
+}
+
+}
+
+#undef double

bsnes/emulator/audio/audio.hpp

@@ -0,0 +1,95 @@
+#pragma once
+#define double float
+
+#include <nall/dsp/iir/dc-removal.hpp>
+#include <nall/dsp/iir/one-pole.hpp>
+#include <nall/dsp/iir/biquad.hpp>
+#include <nall/dsp/resampler/cubic.hpp>
+
+namespace Emulator {
+
+struct Interface;
+struct Audio;
+struct Filter;
+struct Stream;
+
+struct Audio {
+  ~Audio();
+  auto reset(Interface* interface) -> void;
+
+  inline auto channels() const -> uint { return _channels; }
+  inline auto frequency() const -> double { return _frequency; }
+  inline auto volume() const -> double { return _volume; }
+  inline auto balance() const -> double { return _balance; }
+
+  auto setFrequency(double frequency) -> void;
+  auto setVolume(double volume) -> void;
+  auto setBalance(double balance) -> void;
+
+  auto createStream(uint channels, double frequency) -> shared_pointer<Stream>;
+
+private:
+  auto process() -> void;
+
+  Interface* _interface = nullptr;
+  vector<shared_pointer<Stream>> _streams;
+
+  uint _channels = 0;
+  double _frequency = 48000.0;
+
+  double _volume = 1.0;
+  double _balance = 0.0;
+
+  friend class Stream;
+};
+
+struct Filter {
+  enum class Mode : uint { DCRemoval, OnePole, Biquad } mode;
+  enum class Type : uint { None, LowPass, HighPass } type;
+  enum class Order : uint { None, First, Second } order;
+
+  DSP::IIR::DCRemoval dcRemoval;
+  DSP::IIR::OnePole onePole;
+  DSP::IIR::Biquad biquad;
+};
+
+struct Stream {
+  auto reset(uint channels, double inputFrequency, double outputFrequency) -> void;
+  auto reset() -> void;
+
+  auto frequency() const -> double;
+  auto setFrequency(double inputFrequency, maybe<double> outputFrequency = nothing) -> void;
+
+  auto addDCRemovalFilter() -> void;
+  auto addLowPassFilter(double cutoffFrequency, Filter::Order order, uint passes = 1) -> void;
+  auto addHighPassFilter(double cutoffFrequency, Filter::Order order, uint passes = 1) -> void;
+
+  auto pending() const -> uint;
+  auto read(double samples[]) -> uint;
+  auto write(const double samples[]) -> void;
+
+  template<typename... P> auto sample(P&&... p) -> void {
+    double samples[sizeof...(P)] = {forward<P>(p)...};
+    write(samples);
+  }
+
+  auto serialize(serializer&) -> void;
+
+private:
+  struct Channel {
+    vector<Filter> filters;
+    vector<DSP::IIR::Biquad> nyquist;
+    DSP::Resampler::Cubic resampler;
+  };
+  vector<Channel> channels;
+  double inputFrequency;
+  double outputFrequency;
+
+  friend class Audio;
+};
+
+extern Audio audio;
+
+}
+
+#undef double

bsnes/emulator/audio/stream.cpp

@@ -0,0 +1,125 @@
+auto Stream::reset(uint channelCount, double inputFrequency, double outputFrequency) -> void {
+  channels.reset();
+  channels.resize(channelCount);
+
+  for(auto& channel : channels) {
+    channel.filters.reset();
+  }
+
+  setFrequency(inputFrequency, outputFrequency);
+}
+
+auto Stream::reset() -> void {
+  for(auto& channel : channels) {
+    channel.resampler.reset(this->inputFrequency, this->outputFrequency);
+  }
+}
+
+auto Stream::frequency() const -> double {
+  return inputFrequency;
+}
+
+auto Stream::setFrequency(double inputFrequency, maybe<double> outputFrequency) -> void {
+  this->inputFrequency = inputFrequency;
+  if(outputFrequency) this->outputFrequency = outputFrequency();
+
+  for(auto& channel : channels) {
+    channel.nyquist.reset();
+    channel.resampler.reset(this->inputFrequency, this->outputFrequency);
+  }
+
+  if(this->inputFrequency >= this->outputFrequency * 2) {
+    //add a low-pass filter to prevent aliasing during resampling
+    double cutoffFrequency = min(25000.0, this->outputFrequency / 2.0 - 2000.0);
+    for(auto& channel : channels) {
+      uint passes = 3;
+      for(uint pass : range(passes)) {
+        DSP::IIR::Biquad filter;
+        double q = DSP::IIR::Biquad::butterworth(passes * 2, pass);
+        filter.reset(DSP::IIR::Biquad::Type::LowPass, cutoffFrequency, this->inputFrequency, q);
+        channel.nyquist.append(filter);
+      }
+    }
+  }
+}
+
+auto Stream::addDCRemovalFilter() -> void {
+  return;  //todo: test to ensure this is desirable before enabling
+  for(auto& channel : channels) {
+    Filter filter{Filter::Mode::DCRemoval, Filter::Type::None, Filter::Order::None};
+    channel.filters.append(filter);
+  }
+}
+
+auto Stream::addLowPassFilter(double cutoffFrequency, Filter::Order order, uint passes) -> void {
+  for(auto& channel : channels) {
+    for(uint pass : range(passes)) {
+      if(order == Filter::Order::First) {
+        Filter filter{Filter::Mode::OnePole, Filter::Type::LowPass, Filter::Order::First};
+        filter.onePole.reset(DSP::IIR::OnePole::Type::LowPass, cutoffFrequency, inputFrequency);
+        channel.filters.append(filter);
+      }
+      if(order == Filter::Order::Second) {
+        Filter filter{Filter::Mode::Biquad, Filter::Type::LowPass, Filter::Order::Second};
+        double q = DSP::IIR::Biquad::butterworth(passes * 2, pass);
+        filter.biquad.reset(DSP::IIR::Biquad::Type::LowPass, cutoffFrequency, inputFrequency, q);
+        channel.filters.append(filter);
+      }
+    }
+  }
+}
+
+auto Stream::addHighPassFilter(double cutoffFrequency, Filter::Order order, uint passes) -> void {
+  for(auto& channel : channels) {
+    for(uint pass : range(passes)) {
+      if(order == Filter::Order::First) {
+        Filter filter{Filter::Mode::OnePole, Filter::Type::HighPass, Filter::Order::First};
+        filter.onePole.reset(DSP::IIR::OnePole::Type::HighPass, cutoffFrequency, inputFrequency);
+        channel.filters.append(filter);
+      }
+      if(order == Filter::Order::Second) {
+        Filter filter{Filter::Mode::Biquad, Filter::Type::HighPass, Filter::Order::Second};
+        double q = DSP::IIR::Biquad::butterworth(passes * 2, pass);
+        filter.biquad.reset(DSP::IIR::Biquad::Type::HighPass, cutoffFrequency, inputFrequency, q);
+        channel.filters.append(filter);
+      }
+    }
+  }
+}
+
+auto Stream::pending() const -> uint {
+  if(!channels) return 0;
+  return channels[0].resampler.pending();
+}
+
+auto Stream::read(double samples[]) -> uint {
+  for(uint c : range(channels.size())) samples[c] = channels[c].resampler.read();
+  return channels.size();
+}
+
+auto Stream::write(const double samples[]) -> void {
+  for(auto c : range(channels.size())) {
+    double sample = samples[c] + 1e-25;  //constant offset used to suppress denormals
+    for(auto& filter : channels[c].filters) {
+      switch(filter.mode) {
+      case Filter::Mode::DCRemoval: sample = filter.dcRemoval.process(sample); break;
+      case Filter::Mode::OnePole: sample = filter.onePole.process(sample); break;
+      case Filter::Mode::Biquad: sample = filter.biquad.process(sample); break;
+      }
+    }
+    for(auto& filter : channels[c].nyquist) {
+      sample = filter.process(sample);
+    }
+    channels[c].resampler.write(sample);
+  }
+
+  audio.process();
+}
+
+auto Stream::serialize(serializer& s) -> void {
+  for(auto& channel : channels) {
+    channel.resampler.serialize(s);
+  }
+  s.real(inputFrequency);
+  s.real(outputFrequency);
+}

bsnes/emulator/cheat.hpp

@@ -0,0 +1,57 @@
+#pragma once
+
+namespace Emulator {
+
+struct Cheat {
+  struct Code {
+    auto operator==(const Code& code) const -> bool {
+      if(address != code.address) return false;
+      if(data != code.data) return false;
+      if((bool)compare != (bool)code.compare) return false;
+      if(compare && code.compare && compare() != code.compare()) return false;
+      return true;
+    }
+
+    uint address;
+    uint data;
+    maybe<uint> compare;
+    bool enable;
+    uint restore;
+  };
+
+  explicit operator bool() const {
+    return codes.size() > 0;
+  }
+
+  auto reset() -> void {
+    codes.reset();
+  }
+
+  auto append(uint address, uint data, maybe<uint> compare = {}) -> void {
+    codes.append({address, data, compare});
+  }
+
+  auto assign(const vector<string>& list) -> void {
+    reset();
+    for(auto& entry : list) {
+      for(auto code : entry.split("+")) {
+        auto part = code.transform("=?", "//").split("/");
+        if(part.size() == 2) append(part[0].hex(), part[1].hex());
+        if(part.size() == 3) append(part[0].hex(), part[2].hex(), part[1].hex());
+      }
+    }
+  }
+
+  auto find(uint address, uint compare) -> maybe<uint> {
+    for(auto& code : codes) {
+      if(code.address == address && (!code.compare || code.compare() == compare)) {
+        return code.data;
+      }
+    }
+    return nothing;
+  }
+
+  vector<Code> codes;
+};
+
+}

bsnes/emulator/emulator.cpp

@@ -0,0 +1,8 @@
+#include <emulator/emulator.hpp>
+#include <emulator/audio/audio.cpp>
+
+namespace Emulator {
+
+Platform* platform = nullptr;
+
+}

bsnes/emulator/emulator.hpp

@@ -0,0 +1,58 @@
+#pragma once
+
+#include <libco/libco.h>
+
+#include <nall/platform.hpp>
+#include <nall/adaptive-array.hpp>
+#include <nall/any.hpp>
+#include <nall/chrono.hpp>
+#include <nall/dl.hpp>
+#include <nall/endian.hpp>
+#include <nall/image.hpp>
+#include <nall/literals.hpp>
+#include <nall/random.hpp>
+#include <nall/serializer.hpp>
+#include <nall/shared-pointer.hpp>
+#include <nall/string.hpp>
+#include <nall/traits.hpp>
+#include <nall/unique-pointer.hpp>
+#include <nall/vector.hpp>
+#include <nall/vfs.hpp>
+#include <nall/hash/crc32.hpp>
+#include <nall/hash/sha256.hpp>
+using namespace nall;
+
+#include <emulator/types.hpp>
+#include <emulator/memory/readable.hpp>
+#include <emulator/memory/writable.hpp>
+#include <emulator/audio/audio.hpp>
+
+namespace Emulator {
+  static const string Name    = "bsnes";
+  static const string Version = "114";
+  static const string Author  = "byuu";
+  static const string License = "GPLv3";
+  static const string Website = "https://byuu.org";
+
+  //incremented only when serialization format changes
+  static const string SerializerVersion = "112";
+
+  namespace Constants {
+    namespace Colorburst {
+      static constexpr double NTSC = 315.0 / 88.0 * 1'000'000.0;
+      static constexpr double PAL  = 283.75 * 15'625.0 + 25.0;
+    }
+  }
+
+  //nall/vfs shorthand constants for open(), load()
+  namespace File {
+    static const auto Read  = vfs::file::mode::read;
+    static const auto Write = vfs::file::mode::write;
+    static const auto Optional = false;
+    static const auto Required = true;
+  };
+}
+
+#include "platform.hpp"
+#include "interface.hpp"
+#include "game.hpp"

bsnes/emulator/game.hpp

@@ -0,0 +1,112 @@
+#pragma once
+
+namespace Emulator {
+
+struct Game {
+  struct Memory;
+  struct Oscillator;
+
+  inline auto load(string_view) -> void;
+  inline auto memory(Markup::Node) -> maybe<Memory>;
+  inline auto oscillator(natural = 0) -> maybe<Oscillator>;
+
+  struct Memory {
+    Memory() = default;
+    inline Memory(Markup::Node);
+    explicit operator bool() const { return (bool)type; }
+    inline auto name() const -> string;
+
+    string type;
+    natural size;
+    string content;
+    string manufacturer;
+    string architecture;
+    string identifier;
+    boolean nonVolatile;
+  };
+
+  struct Oscillator {
+    Oscillator() = default;
+    inline Oscillator(Markup::Node);
+    explicit operator bool() const { return frequency; }
+
+    natural frequency;
+  };
+
+  Markup::Node document;
+  string sha256;
+  string label;
+  string name;
+  string title;
+  string region;
+  string revision;
+  string board;
+  vector<Memory> memoryList;
+  vector<Oscillator> oscillatorList;
+};
+
+auto Game::load(string_view text) -> void {
+  document = BML::unserialize(text);
+
+  sha256 = document["game/sha256"].text();
+  label = document["game/label"].text();
+  name = document["game/name"].text();
+  title = document["game/title"].text();
+  region = document["game/region"].text();
+  revision = document["game/revision"].text();
+  board = document["game/board"].text();
+
+  for(auto node : document.find("game/board/memory")) {
+    memoryList.append(Memory{node});
+  }
+
+  for(auto node : document.find("game/board/oscillator")) {
+    oscillatorList.append(Oscillator{node});
+  }
+}
+
+auto Game::memory(Markup::Node node) -> maybe<Memory> {
+  if(!node) return nothing;
+  for(auto& memory : memoryList) {
+    auto type = node["type"].text();
+    auto size = node["size"].natural();
+    auto content = node["content"].text();
+    auto manufacturer = node["manufacturer"].text();
+    auto architecture = node["architecture"].text();
+    auto identifier = node["identifier"].text();
+    if(type && type != memory.type) continue;
+    if(size && size != memory.size) continue;
+    if(content && content != memory.content) continue;
+    if(manufacturer && manufacturer != memory.manufacturer) continue;
+    if(architecture && architecture != memory.architecture) continue;
+    if(identifier && identifier != memory.identifier) continue;
+    return memory;
+  }
+  return nothing;
+}
+
+auto Game::oscillator(natural index) -> maybe<Oscillator> {
+  if(index < oscillatorList.size()) return oscillatorList[index];
+  return nothing;
+}
+
+Game::Memory::Memory(Markup::Node node) {
+  type = node["type"].text();
+  size = node["size"].natural();
+  content = node["content"].text();
+  manufacturer = node["manufacturer"].text();
+  architecture = node["architecture"].text();
+  identifier = node["identifier"].text();
+  nonVolatile = !(bool)node["volatile"];
+}
+
+auto Game::Memory::name() const -> string {
+  if(architecture) return string{architecture, ".", content, ".", type}.downcase();
+  return string{content, ".", type}.downcase();
+}
+
+Game::Oscillator::Oscillator(Markup::Node node) {
+  frequency = node["frequency"].natural();
+}
+
+}

bsnes/emulator/interface.hpp

@@ -0,0 +1,109 @@
+#pragma once
+
+namespace Emulator {
+
+struct Interface {
+  struct Information {
+    string manufacturer;
+    string name;
+    string extension;
+    bool resettable = false;
+  };
+
+  struct Display {
+    struct Type { enum : uint {
+      CRT,
+      LCD,
+    };};
+    uint id = 0;
+    string name;
+    uint type = 0;
+    uint colors = 0;
+    uint width = 0;
+    uint height = 0;
+    uint internalWidth = 0;
+    uint internalHeight = 0;
+    double aspectCorrection = 0;
+  };
+
+  struct Port {
+    uint id;
+    string name;
+  };
+
+  struct Device {
+    uint id;
+    string name;
+  };
+
+  struct Input {
+    struct Type { enum : uint {
+      Hat,
+      Button,
+      Trigger,
+      Control,
+      Axis,
+      Rumble,
+    };};
+
+    uint type;
+    string name;
+  };
+
+  //information
+  virtual auto information() -> Information { return {}; }
+
+  virtual auto display() -> Display { return {}; }
+  virtual auto color(uint32 color) -> uint64 { return 0; }
+
+  //game interface
+  virtual auto loaded() -> bool { return false; }
+  virtual auto hashes() -> vector<string> { return {}; }
+  virtual auto manifests() -> vector<string> { return {}; }
+  virtual auto titles() -> vector<string> { return {}; }
+  virtual auto title() -> string { return {}; }
+  virtual auto load() -> bool { return false; }
+  virtual auto save() -> void {}
+  virtual auto unload() -> void {}
+
+  //system interface
+  virtual auto ports() -> vector<Port> { return {}; }
+  virtual auto devices(uint port) -> vector<Device> { return {}; }
+  virtual auto inputs(uint device) -> vector<Input> { return {}; }
+  virtual auto connected(uint port) -> uint { return 0; }
+  virtual auto connect(uint port, uint device) -> void {}
+  virtual auto power() -> void {}
+  virtual auto reset() -> void {}
+  virtual auto run() -> void {}
+
+  //time functions
+  virtual auto rtc() -> bool { return false; }
+  virtual auto synchronize(uint64 timestamp = 0) -> void {}
+
+  //state functions
+  virtual auto serialize(bool synchronize = true) -> serializer { return {}; }
+  virtual auto unserialize(serializer&) -> bool { return false; }
+
+  //cheat functions
+  virtual auto read(uint24 address) -> uint8 { return 0; }
+  virtual auto cheats(const vector<string>& = {}) -> void {}
+
+  //configuration
+  virtual auto configuration() -> string { return {}; }
+  virtual auto configuration(string name) -> string { return {}; }
+  virtual auto configure(string configuration = "") -> bool { return false; }
+  virtual auto configure(string name, string value) -> bool { return false; }
+
+  //settings
+  virtual auto cap(const string& name) -> bool { return false; }
+  virtual auto get(const string& name) -> any { return {}; }
+  virtual auto set(const string& name, const any& value) -> bool { return false; }
+
+  virtual auto frameSkip() -> uint { return 0; }
+  virtual auto setFrameSkip(uint frameSkip) -> void {}
+
+  virtual auto runAhead() -> bool { return false; }
+  virtual auto setRunAhead(bool runAhead) -> void {}
+};
+
+}

bsnes/emulator/memory/memory.hpp

@@ -0,0 +1,30 @@
+#pragma once
+
+namespace Emulator::Memory {
+
+inline auto mirror(uint address, uint size) -> uint {
+  if(size == 0) return 0;
+  uint base = 0;
+  uint mask = 1 << 31;
+  while(address >= size) {
+    while(!(address & mask)) mask >>= 1;
+    address -= mask;
+    if(size > mask) {
+      size -= mask;
+      base += mask;
+    }
+    mask >>= 1;
+  }
+  return base + address;
+}
+
+inline auto reduce(uint address, uint mask) -> uint {
+  while(mask) {
+    uint bits = (mask & -mask) - 1;
+    address = address >> 1 & ~bits | address & bits;
+    mask = (mask & mask - 1) >> 1;
+  }
+  return address;
+}
+
+}

bsnes/emulator/memory/readable.hpp

@@ -0,0 +1,63 @@
+#pragma once
+
+#include <emulator/memory/memory.hpp>
+
+namespace Emulator::Memory {
+
+template<typename T>
+struct Readable {
+  ~Readable() { reset(); }
+
+  inline auto reset() -> void {
+    delete[] self.data;
+    self.data = nullptr;
+    self.size = 0;
+    self.mask = 0;
+  }
+
+  inline auto allocate(uint size, T fill = ~0ull) -> void {
+    if(!size) return reset();
+    delete[] self.data;
+    self.size = size;
+    self.mask = bit::round(self.size) - 1;
+    self.data = new T[self.mask + 1];
+    memory::fill<T>(self.data, self.mask + 1, fill);
+  }
+
+  inline auto load(shared_pointer<vfs::file> fp) -> void {
+    fp->read(self.data, min(fp->size(), self.size * sizeof(T)));
+    for(uint address = self.size; address <= self.mask; address++) {
+      self.data[address] = self.data[mirror(address, self.size)];
+    }
+  }
+
+  inline auto save(shared_pointer<vfs::file> fp) -> void {
+    fp->write(self.data, self.size * sizeof(T));
+  }
+
+  explicit operator bool() const { return (bool)self.data; }
+  inline auto data() const -> const T* { return self.data; }
+  inline auto size() const -> uint { return self.size; }
+  inline auto mask() const -> uint { return self.mask; }
+
+  inline auto operator[](uint address) const -> T { return self.data[address & self.mask]; }
+  inline auto read(uint address) const -> T { return self.data[address & self.mask]; }
+  inline auto write(uint address, T data) const -> void {}
+
+  auto serialize(serializer& s) -> void {
+    const uint size = self.size;
+    s.integer(self.size);
+    s.integer(self.mask);
+    if(self.size != size) allocate(self.size);
+    s.array(self.data, self.size);
+  }
+
+private:
+  struct {
+    T* data = nullptr;
+    uint size = 0;
+    uint mask = 0;
+  } self;
+};
+
+}

bsnes/emulator/memory/writable.hpp

@@ -0,0 +1,65 @@
+#pragma once
+
+#include <emulator/memory/memory.hpp>
+
+namespace Emulator::Memory {
+
+template<typename T>
+struct Writable {
+  ~Writable() { reset(); }
+
+  inline auto reset() -> void {
+    delete[] self.data;
+    self.data = nullptr;
+    self.size = 0;
+    self.mask = 0;
+  }
+
+  inline auto allocate(uint size, T fill = ~0ull) -> void {
+    if(!size) return reset();
+    delete[] self.data;
+    self.size = size;
+    self.mask = bit::round(self.size) - 1;
+    self.data = new T[self.mask + 1];
+    memory::fill<T>(self.data, self.mask + 1, fill);
+  }
+
+  inline auto load(shared_pointer<vfs::file> fp) -> void {
+    fp->read(self.data, min(fp->size(), self.size * sizeof(T)));
+    for(uint address = self.size; address <= self.mask; address++) {
+      self.data[address] = self.data[mirror(address, self.size)];
+    }
+  }
+
+  inline auto save(shared_pointer<vfs::file> fp) -> void {
+    fp->write(self.data, self.size * sizeof(T));
+  }
+
+  explicit operator bool() const { return (bool)self.data; }
+  inline auto data() -> T* { return self.data; }
+  inline auto data() const -> const T* { return self.data; }
+  inline auto size() const -> uint { return self.size; }
+  inline auto mask() const -> uint { return self.mask; }
+
+  inline auto operator[](uint address) -> T& { return self.data[address & self.mask]; }
+  inline auto operator[](uint address) const -> T { return self.data[address & self.mask]; }
+  inline auto read(uint address) const -> T { return self.data[address & self.mask]; }
+  inline auto write(uint address, T data) -> void { self.data[address & self.mask] = data; }
+
+  auto serialize(serializer& s) -> void {
+    const uint size = self.size;
+    s.integer(self.size);
+    s.integer(self.mask);
+    if(self.size != size) allocate(self.size);
+    s.array(self.data, self.size);
+  }
+
+private:
+  struct {
+    T* data = nullptr;
+    uint size = 0;
+    uint mask = 0;
+  } self;
+};
+
+}

bsnes/emulator/platform.hpp

@@ -0,0 +1,29 @@
+#pragma once
+
+namespace Emulator {
+
+struct Platform {
+  struct Load {
+    Load() = default;
+    Load(uint pathID, string option = "") : valid(true), pathID(pathID), option(option) {}
+    explicit operator bool() const { return valid; }
+
+    bool valid = false;
+    uint pathID = 0;
+    string option;
+  };
+
+  virtual auto path(uint id) -> string { return ""; }
+  virtual auto open(uint id, string name, vfs::file::mode mode, bool required = false) -> shared_pointer<vfs::file> { return {}; }
+  virtual auto load(uint id, string name, string type, vector<string> options = {}) -> Load { return {}; }
+  virtual auto videoFrame(const uint16* data, uint pitch, uint width, uint height, uint scale) -> void {}
+  virtual auto audioFrame(const float* samples, uint channels) -> void {}
+  virtual auto inputPoll(uint port, uint device, uint input) -> int16 { return 0; }
+  virtual auto inputRumble(uint port, uint device, uint input, bool enable) -> void {}
+  virtual auto dipSettings(Markup::Node node) -> uint { return 0; }
+  virtual auto notify(string text) -> void {}
+};
+
+extern Platform* platform;
+
+}

bsnes/emulator/random.hpp

@@ -0,0 +1,96 @@
+#pragma once
+
+namespace Emulator {
+
+struct Random {
+  enum class Entropy : uint { None, Low, High };
+
+  auto operator()() -> uint64 {
+    return random();
+  }
+
+  auto entropy(Entropy entropy) -> void {
+    _entropy = entropy;
+    seed();
+  }
+
+  auto seed(maybe<uint32> seed = nothing, maybe<uint32> sequence = nothing) -> void {
+    if(!seed) seed = (uint32)clock();
+    if(!sequence) sequence = 0;
+
+    _state = 0;
+    _increment = sequence() << 1 | 1;
+    step();
+    _state += seed();
+    step();
+  }
+
+  auto random() -> uint64 {
+    if(_entropy == Entropy::None) return 0;
+    return (uint64)step() << 32 | (uint64)step() << 0;
+  }
+
+  auto bias(uint64 bias) -> uint64 {
+    if(_entropy == Entropy::None) return bias;
+    return random();
+  }
+
+  auto bound(uint64 bound) -> uint64 {
+    uint64 threshold = -bound % bound;
+    while(true) {
+      uint64 result = random();
+      if(result >= threshold) return result % bound;
+    }
+  }
+
+  auto array(uint8* data, uint32 size) -> void {
+    if(_entropy == Entropy::None) {
+      memory::fill(data, size);
+      return;
+    }
+
+    if(_entropy == Entropy::High) {
+      for(uint32 address : range(size)) {
+        data[address] = random();
+      }
+      return;
+    }
+
+    //Entropy::Low
+    uint lobit = random() & 3;
+    uint hibit = (lobit + 8 + (random() & 3)) & 15;
+    uint lovalue = random() & 255;
+    uint hivalue = random() & 255;
+    if((random() & 3) == 0) lovalue = 0;
+    if((random() & 1) == 0) hivalue = ~lovalue;
+
+    for(uint32 address : range(size)) {
+      uint8 value = (address & 1ull << lobit) ? lovalue : hivalue;
+      if((address & 1ull << hibit)) value = ~value;
+      if((random() &  511) == 0) value ^= 1 << (random() & 7);
+      if((random() & 2047) == 0) value ^= 1 << (random() & 7);
+      data[address] = value;
+    }
+  }
+
+  auto serialize(serializer& s) -> void {
+    s.integer((uint&)_entropy);
+    s.integer(_state);
+    s.integer(_increment);
+  }
+
+private:
+  auto step() -> uint32 {
+    uint64 state = _state;
+    _state = state * 6364136223846793005ull + _increment;
+    uint32 xorshift = (state >> 18 ^ state) >> 27;
+    uint32 rotate = state >> 59;
+    return xorshift >> rotate | xorshift << (-rotate & 31);
+  }
+
+  Entropy _entropy = Entropy::High;
+  uint64 _state;
+  uint64 _increment;
+};
+
+}

bsnes/emulator/types.hpp

@@ -0,0 +1,72 @@
+#pragma once
+
+using  int1 = nall::Integer< 1>;
+using  int2 = nall::Integer< 2>;
+using  int3 = nall::Integer< 3>;
+using  int4 = nall::Integer< 4>;
+using  int5 = nall::Integer< 5>;
+using  int6 = nall::Integer< 6>;
+using  int7 = nall::Integer< 7>;
+using  int8 = int8_t;
+using  int9 = nall::Integer< 9>;
+using int10 = nall::Integer<10>;
+using int11 = nall::Integer<11>;
+using int12 = nall::Integer<12>;
+using int13 = nall::Integer<13>;
+using int14 = nall::Integer<14>;
+using int15 = nall::Integer<15>;
+using int16 = int16_t;
+using int17 = nall::Integer<17>;
+using int18 = nall::Integer<18>;
+using int19 = nall::Integer<19>;
+using int20 = nall::Integer<20>;
+using int21 = nall::Integer<21>;
+using int22 = nall::Integer<22>;
+using int23 = nall::Integer<23>;
+using int24 = nall::Integer<24>;
+using int25 = nall::Integer<25>;
+using int26 = nall::Integer<26>;
+using int27 = nall::Integer<27>;
+using int28 = nall::Integer<28>;
+using int29 = nall::Integer<29>;
+using int30 = nall::Integer<30>;
+using int31 = nall::Integer<31>;
+using int32 = int32_t;
+using int48 = nall::Integer<48>;  //Cx4
+using int64 = int64_t;
+
+using  uint1 = nall::Natural< 1>;
+using  uint2 = nall::Natural< 2>;
+using  uint3 = nall::Natural< 3>;
+using  uint4 = nall::Natural< 4>;
+using  uint5 = nall::Natural< 5>;
+using  uint6 = nall::Natural< 6>;
+using  uint7 = nall::Natural< 7>;
+using  uint8 = uint8_t;
+using  uint9 = nall::Natural< 9>;
+using uint10 = nall::Natural<10>;
+using uint11 = nall::Natural<11>;
+using uint12 = nall::Natural<12>;
+using uint13 = nall::Natural<13>;
+using uint14 = nall::Natural<14>;
+using uint15 = nall::Natural<15>;
+using uint16 = uint16_t;
+using uint17 = nall::Natural<17>;
+using uint18 = nall::Natural<18>;
+using uint19 = nall::Natural<19>;
+using uint20 = nall::Natural<20>;
+using uint21 = nall::Natural<21>;
+using uint22 = nall::Natural<22>;
+using uint23 = nall::Natural<23>;
+using uint24 = nall::Natural<24>;
+using uint25 = nall::Natural<25>;
+using uint26 = nall::Natural<26>;
+using uint27 = nall::Natural<27>;
+using uint28 = nall::Natural<28>;
+using uint29 = nall::Natural<29>;
+using uint30 = nall::Natural<30>;
+using uint31 = nall::Natural<31>;
+using uint32 = uint32_t;
+using uint40 = nall::Natural<40>;  //SA1
+using uint48 = nall::Natural<48>;  //Cx4
+using uint64 = uint64_t;

bsnes/filter/2xsai.cpp

@@ -0,0 +1,25 @@
+namespace Filter::_2xSaI {
+
+auto size(uint& width, uint& height) -> void {
+  width  *= 2;
+  height *= 2;
+}
+
+uint32_t temp[512 * 480];
+
+auto render(
+  uint32_t* colortable, uint32_t* output, uint outpitch,
+  const uint16_t* input, uint pitch, uint width, uint height
+) -> void {
+  for(unsigned y = 0; y < height; y++) {
+    const uint16_t *line_in = (const uint16_t*)(((const uint8_t*)input) + pitch * y);
+    uint32_t *line_out = temp + y * width;
+    for(unsigned x = 0; x < width; x++) {
+      line_out[x] = colortable[line_in[x]];
+    }
+  }
+
+  _2xSaI32((unsigned char*)temp, width * sizeof(uint32_t), 0, (unsigned char*)output, outpitch, width, height);
+}
+
+}

bsnes/filter/filter.cpp

@@ -0,0 +1,25 @@
+#include <emulator/emulator.hpp>
+
+#undef register
+#define register
+#include "sai/sai.cpp"
+
+uint32_t* colortable;
+#include "snes_ntsc/snes_ntsc.h"
+#include "snes_ntsc/snes_ntsc.c"
+
+#include "none.cpp"
+#include "scanlines-light.cpp"
+#include "scanlines-dark.cpp"
+#include "scanlines-black.cpp"
+#include "pixellate2x.cpp"
+#include "scale2x.cpp"
+#include "2xsai.cpp"
+#include "super-2xsai.cpp"
+#include "super-eagle.cpp"
+#include "lq2x.cpp"
+#include "hq2x.cpp"
+#include "ntsc-rf.cpp"
+#include "ntsc-composite.cpp"
+#include "ntsc-svideo.cpp"
+#include "ntsc-rgb.cpp"

bsnes/filter/filter.hpp

@@ -0,0 +1,129 @@
+#pragma once
+
+#include <emulator/emulator.hpp>
+
+namespace Filter {
+  using Size = auto (*)(uint& width, uint& height) -> void;
+  using Render = auto (*)(uint32_t* palette, uint32_t* output, uint outpitch,
+    const uint16_t* input, uint pitch, uint width, uint height) -> void;
+}
+
+namespace Filter::None {
+  auto size(uint& width, uint& height) -> void;
+  auto render(
+    uint32_t* colortable, uint32_t* output, uint outpitch,
+    const uint16_t* input, uint pitch, uint width, uint height
+  ) -> void;
+}
+
+namespace Filter::ScanlinesLight {
+  auto size(uint& width, uint& height) -> void;
+  auto render(
+    uint32_t* colortable, uint32_t* output, uint outpitch,
+    const uint16_t* input, uint pitch, uint width, uint height
+  ) -> void;
+}
+
+namespace Filter::ScanlinesDark {
+  auto size(uint& width, uint& height) -> void;
+  auto render(
+    uint32_t* colortable, uint32_t* output, uint outpitch,
+    const uint16_t* input, uint pitch, uint width, uint height
+  ) -> void;
+}
+
+namespace Filter::ScanlinesBlack {
+  auto size(uint& width, uint& height) -> void;
+  auto render(
+    uint32_t* colortable, uint32_t* output, uint outpitch,
+    const uint16_t* input, uint pitch, uint width, uint height
+  ) -> void;
+}
+
+namespace Filter::Pixellate2x {
+  auto size(uint& width, uint& height) -> void;
+  auto render(
+    uint32_t* colortable, uint32_t* output, uint outpitch,
+    const uint16_t* input, uint pitch, uint width, uint height
+  ) -> void;
+}
+
+namespace Filter::Scale2x {
+  auto size(uint& width, uint& height) -> void;
+  auto render(
+    uint32_t* colortable, uint32_t* output, uint outpitch,
+    const uint16_t* input, uint pitch, uint width, uint height
+  ) -> void;
+}
+
+namespace Filter::_2xSaI {
+  auto size(uint& width, uint& height) -> void;
+  auto render(
+    uint32_t* colortable, uint32_t* output, uint outpitch,
+    const uint16_t* input, uint pitch, uint width, uint height
+  ) -> void;
+}
+
+namespace Filter::Super2xSaI {
+  auto size(uint& width, uint& height) -> void;
+  auto render(
+    uint32_t* colortable, uint32_t* output, uint outpitch,
+    const uint16_t* input, uint pitch, uint width, uint height
+  ) -> void;
+}
+
+namespace Filter::SuperEagle {
+  auto size(uint& width, uint& height) -> void;
+  auto render(
+    uint32_t* colortable, uint32_t* output, uint outpitch,
+    const uint16_t* input, uint pitch, uint width, uint height
+  ) -> void;
+}
+
+namespace Filter::LQ2x {
+  auto size(uint& width, uint& height) -> void;
+  auto render(
+    uint32_t* colortable, uint32_t* output, uint outpitch,
+    const uint16_t* input, uint pitch, uint width, uint height
+  ) -> void;
+}
+
+namespace Filter::HQ2x {
+  auto size(uint& width, uint& height) -> void;
+  auto render(
+    uint32_t* colortable, uint32_t* output, uint outpitch,
+    const uint16_t* input, uint pitch, uint width, uint height
+  ) -> void;
+}
+
+namespace Filter::NTSC_RF {
+  auto size(uint& width, uint& height) -> void;
+  auto render(
+    uint32_t* colortable, uint32_t* output, uint outpitch,
+    const uint16_t* input, uint pitch, uint width, uint height
+  ) -> void;
+}
+
+namespace Filter::NTSC_Composite {
+  auto size(uint& width, uint& height) -> void;
+  auto render(
+    uint32_t* colortable, uint32_t* output, uint outpitch,
+    const uint16_t* input, uint pitch, uint width, uint height
+  ) -> void;
+}
+
+namespace Filter::NTSC_SVideo {
+  auto size(uint& width, uint& height) -> void;
+  auto render(
+    uint32_t* colortable, uint32_t* output, uint outpitch,
+    const uint16_t* input, uint pitch, uint width, uint height
+  ) -> void;
+}
+
+namespace Filter::NTSC_RGB {
+  auto size(uint& width, uint& height) -> void;
+  auto render(
+    uint32_t* colortable, uint32_t* output, uint outpitch,
+    const uint16_t* input, uint pitch, uint width, uint height
+  ) -> void;
+}

bsnes/filter/hq2x.cpp

@@ -0,0 +1,200 @@
+namespace Filter::HQ2x {
+
+enum {
+  diff_offset = (0x440 << 21) + (0x207 << 11) + 0x407,
+  diff_mask   = (0x380 << 21) + (0x1f0 << 11) + 0x3f0,
+};
+
+uint32_t *yuvTable;
+uint8_t rotate[256];
+
+const uint8_t hqTable[256] = {
+  4, 4, 6,  2, 4, 4, 6,  2, 5,  3, 15, 12, 5,  3, 17, 13,
+  4, 4, 6, 18, 4, 4, 6, 18, 5,  3, 12, 12, 5,  3,  1, 12,
+  4, 4, 6,  2, 4, 4, 6,  2, 5,  3, 17, 13, 5,  3, 16, 14,
+  4, 4, 6, 18, 4, 4, 6, 18, 5,  3, 16, 12, 5,  3,  1, 14,
+  4, 4, 6,  2, 4, 4, 6,  2, 5, 19, 12, 12, 5, 19, 16, 12,
+  4, 4, 6,  2, 4, 4, 6,  2, 5,  3, 16, 12, 5,  3, 16, 12,
+  4, 4, 6,  2, 4, 4, 6,  2, 5, 19,  1, 12, 5, 19,  1, 14,
+  4, 4, 6,  2, 4, 4, 6, 18, 5,  3, 16, 12, 5, 19,  1, 14,
+  4, 4, 6,  2, 4, 4, 6,  2, 5,  3, 15, 12, 5,  3, 17, 13,
+  4, 4, 6,  2, 4, 4, 6,  2, 5,  3, 16, 12, 5,  3, 16, 12,
+  4, 4, 6,  2, 4, 4, 6,  2, 5,  3, 17, 13, 5,  3, 16, 14,
+  4, 4, 6,  2, 4, 4, 6,  2, 5,  3, 16, 13, 5,  3,  1, 14,
+  4, 4, 6,  2, 4, 4, 6,  2, 5,  3, 16, 12, 5,  3, 16, 13,
+  4, 4, 6,  2, 4, 4, 6,  2, 5,  3, 16, 12, 5,  3,  1, 12,
+  4, 4, 6,  2, 4, 4, 6,  2, 5,  3, 16, 12, 5,  3,  1, 14,
+  4, 4, 6,  2, 4, 4, 6,  2, 5,  3,  1, 12, 5,  3,  1, 14,
+};
+
+static void initialize() {
+  static bool initialized = false;
+  if(initialized == true) return;
+  initialized = true;
+
+  yuvTable = new uint32_t[32768];
+
+  for(unsigned i = 0; i < 32768; i++) {
+    uint8_t R = (i >>  0) & 31;
+    uint8_t G = (i >>  5) & 31;
+    uint8_t B = (i >> 10) & 31;
+
+    //bgr555->bgr888
+    double r = (R << 3) | (R >> 2);
+    double g = (G << 3) | (G >> 2);
+    double b = (B << 3) | (B >> 2);
+
+    //bgr888->yuv
+    double y = (r + g + b) * (0.25f * (63.5f / 48.0f));
+    double u = ((r - b) * 0.25f + 128.0f) * (7.5f / 7.0f);
+    double v = ((g * 2.0f - r - b) * 0.125f + 128.0f) * (7.5f / 6.0f);
+
+    yuvTable[i] = ((unsigned)y << 21) + ((unsigned)u << 11) + ((unsigned)v);
+  }
+
+  //counter-clockwise rotation table; one revolution:
+  //123    369  12346789
+  //4.6 -> 2.8  =
+  //789    147  36928147
+  for(unsigned n = 0; n < 256; n++) {
+    rotate[n] = ((n >> 2) & 0x11) | ((n << 2) & 0x88)
+              | ((n & 0x01) << 5) | ((n & 0x08) << 3)
+              | ((n & 0x10) >> 3) | ((n & 0x80) >> 5);
+  }
+}
+
+static void terminate() {
+  delete[] yuvTable;
+}
+
+static bool same(uint16_t x, uint16_t y) {
+  return !((yuvTable[x] - yuvTable[y] + diff_offset) & diff_mask);
+}
+
+static bool diff(uint32_t x, uint16_t y) {
+  return ((x - yuvTable[y]) & diff_mask);
+}
+
+static void grow(uint32_t &n) { n |= n << 16; n &= 0x03e07c1f; }
+static uint16_t pack(uint32_t n) { n &= 0x03e07c1f; return n | (n >> 16); }
+
+static uint16_t blend1(uint32_t A, uint32_t B) {
+  grow(A); grow(B);
+  return pack((A * 3 + B) >> 2);
+}
+
+static uint16_t blend2(uint32_t A, uint32_t B, uint32_t C) {
+  grow(A); grow(B); grow(C);
+  return pack((A * 2 + B + C) >> 2);
+}
+
+static uint16_t blend3(uint32_t A, uint32_t B, uint32_t C) {
+  grow(A); grow(B); grow(C);
+  return pack((A * 5 + B * 2 + C) >> 3);
+}
+
+static uint16_t blend4(uint32_t A, uint32_t B, uint32_t C) {
+  grow(A); grow(B); grow(C);
+  return pack((A * 6 + B + C) >> 3);
+}
+
+static uint16_t blend5(uint32_t A, uint32_t B, uint32_t C) {
+  grow(A); grow(B); grow(C);
+  return pack((A * 2 + (B + C) * 3) >> 3);
+}
+
+static uint16_t blend6(uint32_t A, uint32_t B, uint32_t C) {
+  grow(A); grow(B); grow(C);
+  return pack((A * 14 + B + C) >> 4);
+}
+
+static uint16_t blend(unsigned rule, uint16_t E, uint16_t A, uint16_t B, uint16_t D, uint16_t F, uint16_t H) {
+  switch(rule) { default:
+    case  0: return E;
+    case  1: return blend1(E, A);
+    case  2: return blend1(E, D);
+    case  3: return blend1(E, B);
+    case  4: return blend2(E, D, B);
+    case  5: return blend2(E, A, B);
+    case  6: return blend2(E, A, D);
+    case  7: return blend3(E, B, D);
+    case  8: return blend3(E, D, B);
+    case  9: return blend4(E, D, B);
+    case 10: return blend5(E, D, B);
+    case 11: return blend6(E, D, B);
+    case 12: return same(B, D) ? blend2(E, D, B) : E;
+    case 13: return same(B, D) ? blend5(E, D, B) : E;
+    case 14: return same(B, D) ? blend6(E, D, B) : E;
+    case 15: return same(B, D) ? blend2(E, D, B) : blend1(E, A);
+    case 16: return same(B, D) ? blend4(E, D, B) : blend1(E, A);
+    case 17: return same(B, D) ? blend5(E, D, B) : blend1(E, A);
+    case 18: return same(B, F) ? blend3(E, B, D) : blend1(E, D);
+    case 19: return same(D, H) ? blend3(E, D, B) : blend1(E, B);
+  }
+}
+
+auto size(uint& width, uint& height) -> void {
+  width  *= 2;
+  height *= 2;
+}
+
+auto render(
+  uint32_t* colortable, uint32_t* output, uint outpitch,
+  const uint16_t* input, uint pitch, uint width, uint height
+) -> void {
+  initialize();
+
+  pitch    >>= 1;
+  outpitch >>= 2;
+
+  for(uint y = 0; y < height; y++) {
+    const uint16_t* in = input + y * pitch;
+    uint32_t* out0 = output + y * outpitch * 2;
+    uint32_t* out1 = output + y * outpitch * 2 + outpitch;
+
+    int prevline = (y == 0 ? 0 : pitch);
+    int nextline = (y == height - 1 ? 0 : pitch);
+
+    in++;
+    *out0++ = 0; *out0++ = 0;
+    *out1++ = 0; *out1++ = 0;
+
+    for(unsigned x = 1; x < width - 1; x++) {
+      uint16_t A = *(in - prevline - 1);
+      uint16_t B = *(in - prevline + 0);
+      uint16_t C = *(in - prevline + 1);
+      uint16_t D = *(in - 1);
+      uint16_t E = *(in + 0);
+      uint16_t F = *(in + 1);
+      uint16_t G = *(in + nextline - 1);
+      uint16_t H = *(in + nextline + 0);
+      uint16_t I = *(in + nextline + 1);
+      uint32_t e = yuvTable[E] + diff_offset;
+
+      uint8_t pattern;
+      pattern  = diff(e, A) << 0;
+      pattern |= diff(e, B) << 1;
+      pattern |= diff(e, C) << 2;
+      pattern |= diff(e, D) << 3;
+      pattern |= diff(e, F) << 4;
+      pattern |= diff(e, G) << 5;
+      pattern |= diff(e, H) << 6;
+      pattern |= diff(e, I) << 7;
+
+      *(out0 + 0) = colortable[blend(hqTable[pattern], E, A, B, D, F, H)]; pattern = rotate[pattern];
+      *(out0 + 1) = colortable[blend(hqTable[pattern], E, C, F, B, H, D)]; pattern = rotate[pattern];
+      *(out1 + 1) = colortable[blend(hqTable[pattern], E, I, H, F, D, B)]; pattern = rotate[pattern];
+      *(out1 + 0) = colortable[blend(hqTable[pattern], E, G, D, H, B, F)];
+
+      in++;
+      out0 += 2;
+      out1 += 2;
+    }
+
+    in++;
+    *out0++ = 0; *out0++ = 0;
+    *out1++ = 0; *out1++ = 0;
+  }
+}
+
+}

bsnes/filter/lq2x.cpp

@@ -0,0 +1,46 @@
+namespace Filter::LQ2x {
+
+auto size(uint& width, uint& height) -> void {
+  width  *= 2;
+  height *= 2;
+}
+
+auto render(
+  uint32_t* colortable, uint32_t* output, uint outpitch,
+  const uint16_t* input, uint pitch, uint width, uint height
+) -> void {
+  pitch    >>= 1;
+  outpitch >>= 2;
+
+  for(uint y = 0; y < height; y++) {
+    const uint16_t* in = input + y * pitch;
+    uint32_t* out0 = output + y * outpitch * 2;
+    uint32_t* out1 = output + y * outpitch * 2 + outpitch;
+
+    int prevline = (y == 0 ? 0 : pitch);
+    int nextline = (y == height - 1 ? 0 : pitch);
+
+    for(uint x = 0; x < width; x++) {
+      uint16_t A = *(in - prevline);
+      uint16_t B = (x > 0) ? *(in - 1) : *in;
+      uint16_t C = *in;
+      uint16_t D = (x < width - 1) ? *(in + 1) : *in;
+      uint16_t E = *(in++ + nextline);
+      uint32_t c = colortable[C];
+
+      if(A != E && B != D) {
+        *out0++ = (A == B ? colortable[C + A - ((C ^ A) & 0x0421) >> 1] : c);
+        *out0++ = (A == D ? colortable[C + A - ((C ^ A) & 0x0421) >> 1] : c);
+        *out1++ = (E == B ? colortable[C + E - ((C ^ E) & 0x0421) >> 1] : c);
+        *out1++ = (E == D ? colortable[C + E - ((C ^ E) & 0x0421) >> 1] : c);
+      } else {
+        *out0++ = c;
+        *out0++ = c;
+        *out1++ = c;
+        *out1++ = c;
+      }
+    }
+  }
+}
+
+}

bsnes/filter/none.cpp

@@ -0,0 +1,24 @@
+namespace Filter::None {
+
+auto size(uint& width, uint& height) -> void {
+  width  = width;
+  height = height;
+}
+
+auto render(
+  uint32_t* colortable, uint32_t* output, uint outpitch,
+  const uint16_t* input, uint pitch, uint width, uint height
+) -> void {
+  pitch    >>= 1;
+  outpitch >>= 2;
+
+  for(uint y = 0; y < height; y++) {
+    const uint16_t* in = input + y * pitch;
+    uint32_t* out = output + y * outpitch;
+    for(uint x = 0; x < width; x++) {
+      *out++ = colortable[*in++];
+    }
+  }
+}
+
+}

bsnes/filter/ntsc-composite.cpp

@@ -0,0 +1,50 @@
+namespace Filter::NTSC_Composite {
+
+struct snes_ntsc_t *ntsc;
+snes_ntsc_setup_t setup;
+int burst;
+int burst_toggle;
+
+void initialize() {
+  static bool initialized = false;
+  if(initialized == true) return;
+  initialized = true;
+
+  ntsc = (snes_ntsc_t*)malloc(sizeof *ntsc);
+  setup = snes_ntsc_composite;
+  setup.merge_fields = 1;
+  snes_ntsc_init(ntsc, &setup);
+
+  burst = 0;
+  burst_toggle = (setup.merge_fields ? 0 : 1);
+}
+
+void terminate() {
+  if(ntsc) free(ntsc);
+}
+
+auto size(uint& width, uint& height) -> void {
+  width  = SNES_NTSC_OUT_WIDTH(256);
+  height = height;
+}
+
+auto render(
+  uint32_t* colortable_, uint32_t* output, uint outpitch,
+  const uint16_t* input, uint pitch, uint width, uint height
+) -> void {
+  initialize();
+  colortable = colortable_;
+
+  pitch    >>= 1;
+  outpitch >>= 2;
+
+  if(width <= 256) {
+    snes_ntsc_blit      (ntsc, input, pitch, burst, width, height, output, outpitch << 2);
+  } else {
+    snes_ntsc_blit_hires(ntsc, input, pitch, burst, width, height, output, outpitch << 2);
+  }
+
+  burst ^= burst_toggle;
+}
+
+}

bsnes/filter/ntsc-rf.cpp

@@ -0,0 +1,50 @@
+namespace Filter::NTSC_RF {
+
+struct snes_ntsc_t *ntsc;
+snes_ntsc_setup_t setup;
+int burst;
+int burst_toggle;
+
+void initialize() {
+  static bool initialized = false;
+  if(initialized == true) return;
+  initialized = true;
+
+  ntsc = (snes_ntsc_t*)malloc(sizeof *ntsc);
+  setup = snes_ntsc_composite;
+  setup.merge_fields = 0;
+  snes_ntsc_init(ntsc, &setup);
+
+  burst = 0;
+  burst_toggle = (setup.merge_fields ? 0 : 1);
+}
+
+void terminate() {
+  if(ntsc) free(ntsc);
+}
+
+auto size(uint& width, uint& height) -> void {
+  width  = SNES_NTSC_OUT_WIDTH(256);
+  height = height;
+}
+
+auto render(
+  uint32_t* colortable_, uint32_t* output, uint outpitch,
+  const uint16_t* input, uint pitch, uint width, uint height
+) -> void {
+  initialize();
+  colortable = colortable_;
+
+  pitch    >>= 1;
+  outpitch >>= 2;
+
+  if(width <= 256) {
+    snes_ntsc_blit      (ntsc, input, pitch, burst, width, height, output, outpitch << 2);
+  } else {
+    snes_ntsc_blit_hires(ntsc, input, pitch, burst, width, height, output, outpitch << 2);
+  }
+
+  burst ^= burst_toggle;
+}
+
+}

bsnes/filter/ntsc-rgb.cpp

@@ -0,0 +1,50 @@
+namespace Filter::NTSC_RGB {
+
+struct snes_ntsc_t *ntsc;
+snes_ntsc_setup_t setup;
+int burst;
+int burst_toggle;
+
+void initialize() {
+  static bool initialized = false;
+  if(initialized == true) return;
+  initialized = true;
+
+  ntsc = (snes_ntsc_t*)malloc(sizeof *ntsc);
+  setup = snes_ntsc_rgb;
+  setup.merge_fields = 1;
+  snes_ntsc_init(ntsc, &setup);
+
+  burst = 0;
+  burst_toggle = (setup.merge_fields ? 0 : 1);
+}
+
+void terminate() {
+  if(ntsc) free(ntsc);
+}
+
+auto size(uint& width, uint& height) -> void {
+  width  = SNES_NTSC_OUT_WIDTH(256);
+  height = height;
+}
+
+auto render(
+  uint32_t* colortable_, uint32_t* output, uint outpitch,
+  const uint16_t* input, uint pitch, uint width, uint height
+) -> void {
+  initialize();
+  colortable = colortable_;
+
+  pitch    >>= 1;
+  outpitch >>= 2;
+
+  if(width <= 256) {
+    snes_ntsc_blit      (ntsc, input, pitch, burst, width, height, output, outpitch << 2);
+  } else {
+    snes_ntsc_blit_hires(ntsc, input, pitch, burst, width, height, output, outpitch << 2);
+  }
+
+  burst ^= burst_toggle;
+}
+
+}

bsnes/filter/ntsc-svideo.cpp

@@ -0,0 +1,50 @@
+namespace Filter::NTSC_SVideo {
+
+struct snes_ntsc_t *ntsc;
+snes_ntsc_setup_t setup;
+int burst;
+int burst_toggle;
+
+void initialize() {
+  static bool initialized = false;
+  if(initialized == true) return;
+  initialized = true;
+
+  ntsc = (snes_ntsc_t*)malloc(sizeof *ntsc);
+  setup = snes_ntsc_svideo;
+  setup.merge_fields = 1;
+  snes_ntsc_init(ntsc, &setup);
+
+  burst = 0;
+  burst_toggle = (setup.merge_fields ? 0 : 1);
+}
+
+void terminate() {
+  if(ntsc) free(ntsc);
+}
+
+auto size(uint& width, uint& height) -> void {
+  width  = SNES_NTSC_OUT_WIDTH(256);
+  height = height;
+}
+
+auto render(
+  uint32_t* colortable_, uint32_t* output, uint outpitch,
+  const uint16_t* input, uint pitch, uint width, uint height
+) -> void {
+  initialize();
+  colortable = colortable_;
+
+  pitch    >>= 1;
+  outpitch >>= 2;
+
+  if(width <= 256) {
+    snes_ntsc_blit      (ntsc, input, pitch, burst, width, height, output, outpitch << 2);
+  } else {
+    snes_ntsc_blit_hires(ntsc, input, pitch, burst, width, height, output, outpitch << 2);
+  }
+
+  burst ^= burst_toggle;
+}
+
+}

bsnes/filter/pixellate2x.cpp

@@ -0,0 +1,40 @@
+namespace Filter::Pixellate2x {
+
+auto size(uint& width, uint& height) -> void {
+  width  = (width  <= 256) ? width  * 2 : width;
+  height = (height <= 240) ? height * 2 : height;
+}
+
+auto render(
+  uint32_t* colortable, uint32_t* output, uint outpitch,
+  const uint16_t* input, uint pitch, uint width, uint height
+) -> void {
+  pitch >>= 1;
+  outpitch >>= 2;
+
+  uint32_t *out0 = output;
+  uint32_t *out1 = output + outpitch;
+
+  for(unsigned y = 0; y < height; y++) {
+    for(unsigned x = 0; x < width; x++) {
+      uint32_t p = colortable[*input++];
+
+      *out0++ = p;
+      if(height <= 240) *out1++ = p;
+      if(width > 256) continue;
+
+      *out0++ = p;
+      if(height <= 240) *out1++ = p;
+    }
+
+    input += pitch - width;
+    if(height <= 240) {
+      out0 += outpitch + outpitch - 512;
+      out1 += outpitch + outpitch - 512;
+    } else {
+      out0 += outpitch - 512;
+    }
+  }
+}
+
+}

bsnes/filter/scale2x.cpp

@@ -0,0 +1,46 @@
+namespace Filter::Scale2x {
+
+auto size(uint& width, uint& height) -> void {
+  width  *= 2;
+  height *= 2;
+}
+
+auto render(
+  uint32_t* colortable, uint32_t* output, uint outpitch,
+  const uint16_t* input, uint pitch, uint width, uint height
+) -> void {
+  pitch    >>= 1;
+  outpitch >>= 2;
+
+  for(uint y = 0; y < height; y++) {
+    const uint16_t* in = input + y * pitch;
+    uint32_t* out0 = output + y * outpitch * 2;
+    uint32_t* out1 = output + y * outpitch * 2 + outpitch;
+
+    int prevline = (y == 0 ? 0 : pitch);
+    int nextline = (y == height - 1 ? 0 : pitch);
+
+    for(unsigned x = 0; x < width; x++) {
+      uint16_t A = *(in - prevline);
+      uint16_t B = (x > 0) ? *(in - 1) : *in;
+      uint16_t C = *in;
+      uint16_t D = (x < width - 1) ? *(in + 1) : *in;
+      uint16_t E = *(in++ + nextline);
+      uint32_t c = colortable[C];
+
+      if(A != E && B != D) {
+        *out0++ = (A == B ? colortable[A] : c);
+        *out0++ = (A == D ? colortable[A] : c);
+        *out1++ = (E == B ? colortable[E] : c);
+        *out1++ = (E == D ? colortable[E] : c);
+      } else {
+        *out0++ = c;
+        *out0++ = c;
+        *out1++ = c;
+        *out1++ = c;
+      }
+    }
+  }
+}
+
+}

bsnes/filter/scanlines-black.cpp

@@ -0,0 +1,28 @@
+namespace Filter::ScanlinesBlack {
+
+auto size(uint& width, uint& height) -> void {
+  width  = width;
+  height = height * 2;
+}
+
+auto render(
+  uint32_t* palette, uint32_t* output, uint outpitch,
+  const uint16_t* input, uint pitch, uint width, uint height
+) -> void {
+  pitch    >>= 1;
+  outpitch >>= 2;
+
+  for(unsigned y = 0; y < height; y++) {
+    const uint16_t *in = input + y * pitch;
+    uint32_t *out0 = output + y * outpitch * 2;
+    uint32_t *out1 = output + y * outpitch * 2 + outpitch;
+
+    for(unsigned x = 0; x < width; x++) {
+      uint16_t color = *in++;
+      *out0++ = palette[color];
+      *out1++ = 0;
+    }
+  }
+}
+
+}

bsnes/filter/scanlines-dark.cpp

@@ -0,0 +1,48 @@
+namespace Filter::ScanlinesDark {
+
+uint16_t adjust[32768];
+
+void initialize() {
+  static bool initialized = false;
+  if(initialized == true) return;
+  initialized = true;
+
+  for(unsigned i = 0; i < 32768; i++) {
+    uint8_t r = (i >> 10) & 31;
+    uint8_t g = (i >>  5) & 31;
+    uint8_t b = (i >>  0) & 31;
+    r *= 0.333;
+    g *= 0.333;
+    b *= 0.333;
+    adjust[i] = (r << 10) + (g << 5) + (b << 0);
+  }
+}
+
+auto size(uint& width, uint& height) -> void {
+  width  = width;
+  height = height * 2;
+}
+
+auto render(
+  uint32_t* palette, uint32_t* output, uint outpitch,
+  const uint16_t* input, uint pitch, uint width, uint height
+) -> void {
+  initialize();
+
+  pitch    >>= 1;
+  outpitch >>= 2;
+
+  for(unsigned y = 0; y < height; y++) {
+    const uint16_t *in = input + y * pitch;
+    uint32_t *out0 = output + y * outpitch * 2;
+    uint32_t *out1 = output + y * outpitch * 2 + outpitch;
+
+    for(unsigned x = 0; x < width; x++) {
+      uint16_t color = *in++;
+      *out0++ = palette[color];
+      *out1++ = palette[adjust[color]];
+    }
+  }
+}
+
+}

bsnes/filter/scanlines-light.cpp

@@ -0,0 +1,48 @@
+namespace Filter::ScanlinesLight {
+
+uint16_t adjust[32768];
+
+void initialize() {
+  static bool initialized = false;
+  if(initialized == true) return;
+  initialized = true;
+
+  for(unsigned i = 0; i < 32768; i++) {
+    uint8_t r = (i >> 10) & 31;
+    uint8_t g = (i >>  5) & 31;
+    uint8_t b = (i >>  0) & 31;
+    r *= 0.666;
+    g *= 0.666;
+    b *= 0.666;
+    adjust[i] = (r << 10) + (g << 5) + (b << 0);
+  }
+}
+
+auto size(uint& width, uint& height) -> void {
+  width  = width;
+  height = height * 2;
+}
+
+auto render(
+  uint32_t* palette, uint32_t* output, uint outpitch,
+  const uint16_t* input, uint pitch, uint width, uint height
+) -> void {
+  initialize();
+
+  pitch    >>= 1;
+  outpitch >>= 2;
+
+  for(unsigned y = 0; y < height; y++) {
+    const uint16_t *in = input + y * pitch;
+    uint32_t *out0 = output + y * outpitch * 2;
+    uint32_t *out1 = output + y * outpitch * 2 + outpitch;
+
+    for(unsigned x = 0; x < width; x++) {
+      uint16_t color = *in++;
+      *out0++ = palette[color];
+      *out1++ = palette[adjust[color]];
+    }
+  }
+}
+
+}

bsnes/filter/snes_ntsc/snes_ntsc.c

@@ -0,0 +1,251 @@
+/* snes_ntsc 0.2.2. http://www.slack.net/~ant/ */
+
+#include "snes_ntsc.h"
+
+/* Copyright (C) 2006-2007 Shay Green. This module is free software; you
+can redistribute it and/or modify it under the terms of the GNU Lesser
+General Public License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version. This
+module is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
+details. You should have received a copy of the GNU Lesser General Public
+License along with this module; if not, write to the Free Software Foundation,
+Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */
+
+snes_ntsc_setup_t const snes_ntsc_monochrome = { 0,-1, 0, 0,.2,  0,.2,-.2,-.2,-1,  1, 0, 0 };
+snes_ntsc_setup_t const snes_ntsc_composite  = { 0, 0, 0, 0, 0,  0, 0,  0,  0, 0,  1, 0, 0 };
+snes_ntsc_setup_t const snes_ntsc_svideo     = { 0, 0, 0, 0,.2,  0,.2, -1, -1, 0,  1, 0, 0 };
+snes_ntsc_setup_t const snes_ntsc_rgb        = { 0, 0, 0, 0,.2,  0,.7, -1, -1,-1,  1, 0, 0 };
+
+#define alignment_count 3
+#define burst_count     3
+#define rescale_in      8
+#define rescale_out     7
+
+#define artifacts_mid   1.0f
+#define fringing_mid    1.0f
+#define std_decoder_hue 0
+
+#define rgb_bits        7 /* half normal range to allow for doubled hires pixels */
+#define gamma_size      32
+
+#include "snes_ntsc_impl.h"
+
+/* 3 input pixels -> 8 composite samples */
+pixel_info_t const snes_ntsc_pixels [alignment_count] = {
+	{ PIXEL_OFFSET( -4, -9 ), { 1, 1, .6667f, 0 } },
+	{ PIXEL_OFFSET( -2, -7 ), {       .3333f, 1, 1, .3333f } },
+	{ PIXEL_OFFSET(  0, -5 ), {                  0, .6667f, 1, 1 } },
+};
+
+static void merge_kernel_fields( snes_ntsc_rgb_t* io )
+{
+	int n;
+	for ( n = burst_size; n; --n )
+	{
+		snes_ntsc_rgb_t p0 = io [burst_size * 0] + rgb_bias;
+		snes_ntsc_rgb_t p1 = io [burst_size * 1] + rgb_bias;
+		snes_ntsc_rgb_t p2 = io [burst_size * 2] + rgb_bias;
+		/* merge colors without losing precision */
+		io [burst_size * 0] =
+				((p0 + p1 - ((p0 ^ p1) & snes_ntsc_rgb_builder)) >> 1) - rgb_bias;
+		io [burst_size * 1] =
+				((p1 + p2 - ((p1 ^ p2) & snes_ntsc_rgb_builder)) >> 1) - rgb_bias;
+		io [burst_size * 2] =
+				((p2 + p0 - ((p2 ^ p0) & snes_ntsc_rgb_builder)) >> 1) - rgb_bias;
+		++io;
+	}
+}
+
+static void correct_errors( snes_ntsc_rgb_t color, snes_ntsc_rgb_t* out )
+{
+	int n;
+	for ( n = burst_count; n; --n )
+	{
+		unsigned i;
+		for ( i = 0; i < rgb_kernel_size / 2; i++ )
+		{
+			snes_ntsc_rgb_t error = color -
+					out [i    ] - out [(i+12)%14+14] - out [(i+10)%14+28] -
+					out [i + 7] - out [i + 5    +14] - out [i + 3    +28];
+			DISTRIBUTE_ERROR( i+3+28, i+5+14, i+7 );
+		}
+		out += alignment_count * rgb_kernel_size;
+	}
+}
+
+void snes_ntsc_init( snes_ntsc_t* ntsc, snes_ntsc_setup_t const* setup )
+{
+	int merge_fields;
+	int entry;
+	init_t impl;
+	if ( !setup )
+		setup = &snes_ntsc_composite;
+	init( &impl, setup );
+	
+	merge_fields = setup->merge_fields;
+	if ( setup->artifacts <= -1 && setup->fringing <= -1 )
+		merge_fields = 1;
+	
+	for ( entry = 0; entry < snes_ntsc_palette_size; entry++ )
+	{
+		/* Reduce number of significant bits of source color. Clearing the
+		low bits of R and B were least notictable. Modifying green was too
+		noticeable. */
+		int ir = entry >> 8 & 0x1E;
+		int ig = entry >> 4 & 0x1F;
+		int ib = entry << 1 & 0x1E;
+		
+		#if SNES_NTSC_BSNES_COLORTBL
+			if ( setup->bsnes_colortbl )
+			{
+				int bgr15 = (ib << 10) | (ig << 5) | ir;
+				unsigned long rgb16 = setup->bsnes_colortbl [bgr15];
+				ir = rgb16 >> 11 & 0x1E;
+				ig = rgb16 >>  6 & 0x1F;
+				ib = rgb16       & 0x1E;
+			}
+		#endif
+		
+		{
+			float rr = impl.to_float [ir];
+			float gg = impl.to_float [ig];
+			float bb = impl.to_float [ib];
+			
+			float y, i, q = RGB_TO_YIQ( rr, gg, bb, y, i );
+			
+			int r, g, b = YIQ_TO_RGB( y, i, q, impl.to_rgb, int, r, g );
+			snes_ntsc_rgb_t rgb = PACK_RGB( r, g, b );
+			
+			snes_ntsc_rgb_t* out = ntsc->table [entry];
+			gen_kernel( &impl, y, i, q, out );
+			if ( merge_fields )
+				merge_kernel_fields( out );
+			correct_errors( rgb, out );
+		}
+	}
+}
+
+#ifndef SNES_NTSC_NO_BLITTERS
+
+void snes_ntsc_blit( snes_ntsc_t const* ntsc, SNES_NTSC_IN_T const* input, long in_row_width,
+		int burst_phase, int in_width, int in_height, void* rgb_out, long out_pitch )
+{
+	int chunk_count = (in_width - 1) / snes_ntsc_in_chunk;
+	for ( ; in_height; --in_height )
+	{
+		SNES_NTSC_IN_T const* line_in = input;
+		SNES_NTSC_BEGIN_ROW( ntsc, burst_phase,
+				snes_ntsc_black, snes_ntsc_black, SNES_NTSC_ADJ_IN( *line_in ) );
+		snes_ntsc_out_t* restrict line_out = (snes_ntsc_out_t*) rgb_out;
+		int n;
+		++line_in;
+		
+		for ( n = chunk_count; n; --n )
+		{
+			/* order of input and output pixels must not be altered */
+			SNES_NTSC_COLOR_IN( 0, SNES_NTSC_ADJ_IN( line_in [0] ) );
+			SNES_NTSC_RGB_OUT( 0, line_out [0], SNES_NTSC_OUT_DEPTH );
+			SNES_NTSC_RGB_OUT( 1, line_out [1], SNES_NTSC_OUT_DEPTH );
+			
+			SNES_NTSC_COLOR_IN( 1, SNES_NTSC_ADJ_IN( line_in [1] ) );
+			SNES_NTSC_RGB_OUT( 2, line_out [2], SNES_NTSC_OUT_DEPTH );
+			SNES_NTSC_RGB_OUT( 3, line_out [3], SNES_NTSC_OUT_DEPTH );
+			
+			SNES_NTSC_COLOR_IN( 2, SNES_NTSC_ADJ_IN( line_in [2] ) );
+			SNES_NTSC_RGB_OUT( 4, line_out [4], SNES_NTSC_OUT_DEPTH );
+			SNES_NTSC_RGB_OUT( 5, line_out [5], SNES_NTSC_OUT_DEPTH );
+			SNES_NTSC_RGB_OUT( 6, line_out [6], SNES_NTSC_OUT_DEPTH );
+			
+			line_in  += 3;
+			line_out += 7;
+		}
+		
+		/* finish final pixels */
+		SNES_NTSC_COLOR_IN( 0, snes_ntsc_black );
+		SNES_NTSC_RGB_OUT( 0, line_out [0], SNES_NTSC_OUT_DEPTH );
+		SNES_NTSC_RGB_OUT( 1, line_out [1], SNES_NTSC_OUT_DEPTH );
+		
+		SNES_NTSC_COLOR_IN( 1, snes_ntsc_black );
+		SNES_NTSC_RGB_OUT( 2, line_out [2], SNES_NTSC_OUT_DEPTH );
+		SNES_NTSC_RGB_OUT( 3, line_out [3], SNES_NTSC_OUT_DEPTH );
+		
+		SNES_NTSC_COLOR_IN( 2, snes_ntsc_black );
+		SNES_NTSC_RGB_OUT( 4, line_out [4], SNES_NTSC_OUT_DEPTH );
+		SNES_NTSC_RGB_OUT( 5, line_out [5], SNES_NTSC_OUT_DEPTH );
+		SNES_NTSC_RGB_OUT( 6, line_out [6], SNES_NTSC_OUT_DEPTH );
+		
+		burst_phase = (burst_phase + 1) % snes_ntsc_burst_count;
+		input += in_row_width;
+		rgb_out = (char*) rgb_out + out_pitch;
+	}
+}
+
+void snes_ntsc_blit_hires( snes_ntsc_t const* ntsc, SNES_NTSC_IN_T const* input, long in_row_width,
+		int burst_phase, int in_width, int in_height, void* rgb_out, long out_pitch )
+{
+	int chunk_count = (in_width - 2) / (snes_ntsc_in_chunk * 2);
+	for ( ; in_height; --in_height )
+	{
+		SNES_NTSC_IN_T const* line_in = input;
+		SNES_NTSC_HIRES_ROW( ntsc, burst_phase,
+				snes_ntsc_black, snes_ntsc_black, snes_ntsc_black,
+				SNES_NTSC_ADJ_IN( line_in [0] ),
+				SNES_NTSC_ADJ_IN( line_in [1] ) );
+		snes_ntsc_out_t* restrict line_out = (snes_ntsc_out_t*) rgb_out;
+		int n;
+		line_in += 2;
+		
+		for ( n = chunk_count; n; --n )
+		{
+			/* twice as many input pixels per chunk */
+			SNES_NTSC_COLOR_IN( 0, SNES_NTSC_ADJ_IN( line_in [0] ) );
+			SNES_NTSC_HIRES_OUT( 0, line_out [0], SNES_NTSC_OUT_DEPTH );
+			
+			SNES_NTSC_COLOR_IN( 1, SNES_NTSC_ADJ_IN( line_in [1] ) );
+			SNES_NTSC_HIRES_OUT( 1, line_out [1], SNES_NTSC_OUT_DEPTH );
+			
+			SNES_NTSC_COLOR_IN( 2, SNES_NTSC_ADJ_IN( line_in [2] ) );
+			SNES_NTSC_HIRES_OUT( 2, line_out [2], SNES_NTSC_OUT_DEPTH );
+			
+			SNES_NTSC_COLOR_IN( 3, SNES_NTSC_ADJ_IN( line_in [3] ) );
+			SNES_NTSC_HIRES_OUT( 3, line_out [3], SNES_NTSC_OUT_DEPTH );
+			
+			SNES_NTSC_COLOR_IN( 4, SNES_NTSC_ADJ_IN( line_in [4] ) );
+			SNES_NTSC_HIRES_OUT( 4, line_out [4], SNES_NTSC_OUT_DEPTH );
+			
+			SNES_NTSC_COLOR_IN( 5, SNES_NTSC_ADJ_IN( line_in [5] ) );
+			SNES_NTSC_HIRES_OUT( 5, line_out [5], SNES_NTSC_OUT_DEPTH );
+			SNES_NTSC_HIRES_OUT( 6, line_out [6], SNES_NTSC_OUT_DEPTH );
+			
+			line_in  += 6;
+			line_out += 7;
+		}
+		
+		SNES_NTSC_COLOR_IN( 0, snes_ntsc_black );
+		SNES_NTSC_HIRES_OUT( 0, line_out [0], SNES_NTSC_OUT_DEPTH );
+		
+		SNES_NTSC_COLOR_IN( 1, snes_ntsc_black );
+		SNES_NTSC_HIRES_OUT( 1, line_out [1], SNES_NTSC_OUT_DEPTH );
+		
+		SNES_NTSC_COLOR_IN( 2, snes_ntsc_black );
+		SNES_NTSC_HIRES_OUT( 2, line_out [2], SNES_NTSC_OUT_DEPTH );
+		
+		SNES_NTSC_COLOR_IN( 3, snes_ntsc_black );
+		SNES_NTSC_HIRES_OUT( 3, line_out [3], SNES_NTSC_OUT_DEPTH );
+		
+		SNES_NTSC_COLOR_IN( 4, snes_ntsc_black );
+		SNES_NTSC_HIRES_OUT( 4, line_out [4], SNES_NTSC_OUT_DEPTH );
+		
+		SNES_NTSC_COLOR_IN( 5, snes_ntsc_black );
+		SNES_NTSC_HIRES_OUT( 5, line_out [5], SNES_NTSC_OUT_DEPTH );
+		SNES_NTSC_HIRES_OUT( 6, line_out [6], SNES_NTSC_OUT_DEPTH );
+		
+		burst_phase = (burst_phase + 1) % snes_ntsc_burst_count;
+		input += in_row_width;
+		rgb_out = (char*) rgb_out + out_pitch;
+	}
+}
+
+#endif

bsnes/filter/snes_ntsc/snes_ntsc.h

@@ -0,0 +1,228 @@
+/* SNES NTSC video filter */
+
+/* snes_ntsc 0.2.2 */
+#ifndef SNES_NTSC_H
+#define SNES_NTSC_H
+
+#include "snes_ntsc_config.h"
+
+#ifdef __cplusplus
+	extern "C" {
+#endif
+
+/* Image parameters, ranging from -1.0 to 1.0. Actual internal values shown
+in parenthesis and should remain fairly stable in future versions. */
+typedef struct snes_ntsc_setup_t
+{
+	/* Basic parameters */
+	double hue;        /* -1 = -180 degrees     +1 = +180 degrees */
+	double saturation; /* -1 = grayscale (0.0)  +1 = oversaturated colors (2.0) */
+	double contrast;   /* -1 = dark (0.5)       +1 = light (1.5) */
+	double brightness; /* -1 = dark (0.5)       +1 = light (1.5) */
+	double sharpness;  /* edge contrast enhancement/blurring */
+	
+	/* Advanced parameters */
+	double gamma;      /* -1 = dark (1.5)       +1 = light (0.5) */
+	double resolution; /* image resolution */
+	double artifacts;  /* artifacts caused by color changes */
+	double fringing;   /* color artifacts caused by brightness changes */
+	double bleed;      /* color bleed (color resolution reduction) */
+	int merge_fields;  /* if 1, merges even and odd fields together to reduce flicker */
+	float const* decoder_matrix; /* optional RGB decoder matrix, 6 elements */
+	
+	unsigned long const* bsnes_colortbl; /* undocumented; set to 0 */
+} snes_ntsc_setup_t;
+
+/* Video format presets */
+extern snes_ntsc_setup_t const snes_ntsc_composite; /* color bleeding + artifacts */
+extern snes_ntsc_setup_t const snes_ntsc_svideo;    /* color bleeding only */
+extern snes_ntsc_setup_t const snes_ntsc_rgb;       /* crisp image */
+extern snes_ntsc_setup_t const snes_ntsc_monochrome;/* desaturated + artifacts */
+
+/* Initializes and adjusts parameters. Can be called multiple times on the same
+snes_ntsc_t object. Can pass NULL for either parameter. */
+typedef struct snes_ntsc_t snes_ntsc_t;
+void snes_ntsc_init( snes_ntsc_t* ntsc, snes_ntsc_setup_t const* setup );
+
+/* Filters one or more rows of pixels. Input pixel format is set by SNES_NTSC_IN_FORMAT
+and output RGB depth is set by SNES_NTSC_OUT_DEPTH. Both default to 16-bit RGB.
+In_row_width is the number of pixels to get to the next input row. Out_pitch
+is the number of *bytes* to get to the next output row. */
+void snes_ntsc_blit( snes_ntsc_t const* ntsc, SNES_NTSC_IN_T const* input,
+		long in_row_width, int burst_phase, int in_width, int in_height,
+		void* rgb_out, long out_pitch );
+
+void snes_ntsc_blit_hires( snes_ntsc_t const* ntsc, SNES_NTSC_IN_T const* input,
+		long in_row_width, int burst_phase, int in_width, int in_height,
+		void* rgb_out, long out_pitch );
+
+/* Number of output pixels written by low-res blitter for given input width. Width
+might be rounded down slightly; use SNES_NTSC_IN_WIDTH() on result to find rounded
+value. Guaranteed not to round 256 down at all. */
+#define SNES_NTSC_OUT_WIDTH( in_width ) \
+	((((in_width) - 1) / snes_ntsc_in_chunk + 1) * snes_ntsc_out_chunk)
+
+/* Number of low-res input pixels that will fit within given output width. Might be
+rounded down slightly; use SNES_NTSC_OUT_WIDTH() on result to find rounded
+value. */
+#define SNES_NTSC_IN_WIDTH( out_width ) \
+	(((out_width) / snes_ntsc_out_chunk - 1) * snes_ntsc_in_chunk + 1)
+
+
+/* Interface for user-defined custom blitters */
+
+enum { snes_ntsc_in_chunk    = 3  }; /* number of input pixels read per chunk */
+enum { snes_ntsc_out_chunk   = 7  }; /* number of output pixels generated per chunk */
+enum { snes_ntsc_black       = 0  }; /* palette index for black */
+enum { snes_ntsc_burst_count = 3  }; /* burst phase cycles through 0, 1, and 2 */
+
+/* Begins outputting row and starts three pixels. First pixel will be cut off a bit.
+Use snes_ntsc_black for unused pixels. Declares variables, so must be before first
+statement in a block (unless you're using C++). */
+#define SNES_NTSC_BEGIN_ROW( ntsc, burst, pixel0, pixel1, pixel2 ) \
+	char const* ktable = \
+		(char const*) (ntsc)->table + burst * (snes_ntsc_burst_size * sizeof (snes_ntsc_rgb_t));\
+	SNES_NTSC_BEGIN_ROW_6_( pixel0, pixel1, pixel2, SNES_NTSC_IN_FORMAT, ktable )
+
+/* Begins input pixel */
+#define SNES_NTSC_COLOR_IN( index, color ) \
+	SNES_NTSC_COLOR_IN_( index, color, SNES_NTSC_IN_FORMAT, ktable )
+
+/* Generates output pixel. Bits can be 24, 16, 15, 14, 32 (treated as 24), or 0:
+24:          RRRRRRRR GGGGGGGG BBBBBBBB (8-8-8 RGB)
+16:                   RRRRRGGG GGGBBBBB (5-6-5 RGB)
+15:                    RRRRRGG GGGBBBBB (5-5-5 RGB)
+14:                    BBBBBGG GGGRRRRR (5-5-5 BGR, native SNES format)
+ 0: xxxRRRRR RRRxxGGG GGGGGxxB BBBBBBBx (native internal format; x = junk bits) */
+#define SNES_NTSC_RGB_OUT( index, rgb_out, bits ) \
+	SNES_NTSC_RGB_OUT_14_( index, rgb_out, bits, 1 )
+
+/* Hires equivalents */
+#define SNES_NTSC_HIRES_ROW( ntsc, burst, pixel1, pixel2, pixel3, pixel4, pixel5 ) \
+	char const* ktable = \
+		(char const*) (ntsc)->table + burst * (snes_ntsc_burst_size * sizeof (snes_ntsc_rgb_t));\
+	unsigned const snes_ntsc_pixel1_ = (pixel1);\
+	snes_ntsc_rgb_t const* kernel1  = SNES_NTSC_IN_FORMAT( ktable, snes_ntsc_pixel1_ );\
+	unsigned const snes_ntsc_pixel2_ = (pixel2);\
+	snes_ntsc_rgb_t const* kernel2  = SNES_NTSC_IN_FORMAT( ktable, snes_ntsc_pixel2_ );\
+	unsigned const snes_ntsc_pixel3_ = (pixel3);\
+	snes_ntsc_rgb_t const* kernel3  = SNES_NTSC_IN_FORMAT( ktable, snes_ntsc_pixel3_ );\
+	unsigned const snes_ntsc_pixel4_ = (pixel4);\
+	snes_ntsc_rgb_t const* kernel4  = SNES_NTSC_IN_FORMAT( ktable, snes_ntsc_pixel4_ );\
+	unsigned const snes_ntsc_pixel5_ = (pixel5);\
+	snes_ntsc_rgb_t const* kernel5  = SNES_NTSC_IN_FORMAT( ktable, snes_ntsc_pixel5_ );\
+	snes_ntsc_rgb_t const* kernel0 = kernel1;\
+	snes_ntsc_rgb_t const* kernelx0;\
+	snes_ntsc_rgb_t const* kernelx1 = kernel1;\
+	snes_ntsc_rgb_t const* kernelx2 = kernel1;\
+	snes_ntsc_rgb_t const* kernelx3 = kernel1;\
+	snes_ntsc_rgb_t const* kernelx4 = kernel1;\
+	snes_ntsc_rgb_t const* kernelx5 = kernel1
+
+#define SNES_NTSC_HIRES_OUT( x, rgb_out, bits ) {\
+	snes_ntsc_rgb_t raw_ =\
+		kernel0  [ x       ] + kernel2  [(x+5)%7+14] + kernel4  [(x+3)%7+28] +\
+		kernelx0 [(x+7)%7+7] + kernelx2 [(x+5)%7+21] + kernelx4 [(x+3)%7+35] +\
+		kernel1  [(x+6)%7  ] + kernel3  [(x+4)%7+14] + kernel5  [(x+2)%7+28] +\
+		kernelx1 [(x+6)%7+7] + kernelx3 [(x+4)%7+21] + kernelx5 [(x+2)%7+35];\
+	SNES_NTSC_CLAMP_( raw_, 0 );\
+	SNES_NTSC_RGB_OUT_( rgb_out, (bits), 0 );\
+}
+
+
+/* private */
+enum { snes_ntsc_entry_size = 128 };
+enum { snes_ntsc_palette_size = 0x2000 };
+typedef unsigned long snes_ntsc_rgb_t;
+struct snes_ntsc_t {
+	snes_ntsc_rgb_t table [snes_ntsc_palette_size] [snes_ntsc_entry_size];
+};
+enum { snes_ntsc_burst_size = snes_ntsc_entry_size / snes_ntsc_burst_count };
+
+#define SNES_NTSC_RGB16( ktable, n ) \
+	(snes_ntsc_rgb_t const*) (ktable + ((n & 0x001E) | (n >> 1 & 0x03E0) | (n >> 2 & 0x3C00)) * \
+			(snes_ntsc_entry_size / 2 * sizeof (snes_ntsc_rgb_t)))
+
+#define SNES_NTSC_BGR15( ktable, n ) \
+	(snes_ntsc_rgb_t const*) (ktable + ((n << 9 & 0x3C00) | (n & 0x03E0) | (n >> 10 & 0x001E)) * \
+			(snes_ntsc_entry_size / 2 * sizeof (snes_ntsc_rgb_t)))
+
+/* common 3->7 ntsc macros */
+#define SNES_NTSC_BEGIN_ROW_6_( pixel0, pixel1, pixel2, ENTRY, table ) \
+	unsigned const snes_ntsc_pixel0_ = (pixel0);\
+	snes_ntsc_rgb_t const* kernel0  = ENTRY( table, snes_ntsc_pixel0_ );\
+	unsigned const snes_ntsc_pixel1_ = (pixel1);\
+	snes_ntsc_rgb_t const* kernel1  = ENTRY( table, snes_ntsc_pixel1_ );\
+	unsigned const snes_ntsc_pixel2_ = (pixel2);\
+	snes_ntsc_rgb_t const* kernel2  = ENTRY( table, snes_ntsc_pixel2_ );\
+	snes_ntsc_rgb_t const* kernelx0;\
+	snes_ntsc_rgb_t const* kernelx1 = kernel0;\
+	snes_ntsc_rgb_t const* kernelx2 = kernel0
+
+#define SNES_NTSC_RGB_OUT_14_( x, rgb_out, bits, shift ) {\
+	snes_ntsc_rgb_t raw_ =\
+		kernel0  [x       ] + kernel1  [(x+12)%7+14] + kernel2  [(x+10)%7+28] +\
+		kernelx0 [(x+7)%14] + kernelx1 [(x+ 5)%7+21] + kernelx2 [(x+ 3)%7+35];\
+	SNES_NTSC_CLAMP_( raw_, shift );\
+	SNES_NTSC_RGB_OUT_( rgb_out, bits, shift );\
+}
+
+/* common ntsc macros */
+#define snes_ntsc_rgb_builder    ((1L << 21) | (1 << 11) | (1 << 1))
+#define snes_ntsc_clamp_mask     (snes_ntsc_rgb_builder * 3 / 2)
+#define snes_ntsc_clamp_add      (snes_ntsc_rgb_builder * 0x101)
+#define SNES_NTSC_CLAMP_( io, shift ) {\
+	snes_ntsc_rgb_t sub = (io) >> (9-(shift)) & snes_ntsc_clamp_mask;\
+	snes_ntsc_rgb_t clamp = snes_ntsc_clamp_add - sub;\
+	io |= clamp;\
+	clamp -= sub;\
+	io &= clamp;\
+}
+
+#define SNES_NTSC_COLOR_IN_( index, color, ENTRY, table ) {\
+	unsigned color_;\
+	kernelx##index = kernel##index;\
+	kernel##index = (color_ = (color), ENTRY( table, color_ ));\
+}
+
+/* x is always zero except in snes_ntsc library */
+/* original routine */
+/*
+#define SNES_NTSC_RGB_OUT_( rgb_out, bits, x ) {\
+	if ( bits == 16 )\
+		rgb_out = (raw_>>(13-x)& 0xF800)|(raw_>>(8-x)&0x07E0)|(raw_>>(4-x)&0x001F);\
+	if ( bits == 24 || bits == 32 )\
+		rgb_out = (raw_>>(5-x)&0xFF0000)|(raw_>>(3-x)&0xFF00)|(raw_>>(1-x)&0xFF);\
+	if ( bits == 15 )\
+		rgb_out = (raw_>>(14-x)& 0x7C00)|(raw_>>(9-x)&0x03E0)|(raw_>>(4-x)&0x001F);\
+	if ( bits == 14 )\
+		rgb_out = (raw_>>(24-x)& 0x001F)|(raw_>>(9-x)&0x03E0)|(raw_<<(6+x)&0x7C00);\
+	if ( bits == 0 )\
+		rgb_out = raw_ << x;\
+}
+*/
+
+/* custom bsnes routine -- hooks into bsnes colortable */
+#define SNES_NTSC_RGB_OUT_( rgb_out, bits, x ) {\
+	if ( bits == 16 ) {\
+		rgb_out = (raw_>>(13-x)& 0xF800)|(raw_>>(8-x)&0x07E0)|(raw_>>(4-x)&0x001F);\
+		rgb_out = ((rgb_out&0xf800)>>11)|((rgb_out&0x07c0)>>1)|((rgb_out&0x001f)<<10);\
+		rgb_out = colortable[rgb_out];\
+	} else if ( bits == 24 || bits == 32 ) {\
+		rgb_out = (raw_>>(5-x)&0xFF0000)|(raw_>>(3-x)&0xFF00)|(raw_>>(1-x)&0xFF);\
+		rgb_out = ((rgb_out&0xf80000)>>19)|((rgb_out&0x00f800)>>6)|((rgb_out&0x0000f8)<<7);\
+		rgb_out = colortable[rgb_out];\
+	} else if ( bits == 15 ) {\
+		rgb_out = (raw_>>(14-x)& 0x7C00)|(raw_>>(9-x)&0x03E0)|(raw_>>(4-x)&0x001F);\
+		rgb_out = ((rgb_out&0x7c00)>>10)|((rgb_out&0x03e0))|((rgb_out&0x001f)<<10);\
+		rgb_out = colortable[rgb_out];\
+	} else {\
+		rgb_out = raw_ << x;\
+	}\
+}
+
+#ifdef __cplusplus
+	}
+#endif
+
+#endif

bsnes/filter/snes_ntsc/snes_ntsc_config.h

@@ -0,0 +1,26 @@
+/* Configure library by modifying this file */
+
+#ifndef SNES_NTSC_CONFIG_H
+#define SNES_NTSC_CONFIG_H
+
+/* Format of source pixels */
+/* #define SNES_NTSC_IN_FORMAT SNES_NTSC_RGB16 */
+#define SNES_NTSC_IN_FORMAT SNES_NTSC_BGR15
+
+/* The following affect the built-in blitter only; a custom blitter can
+handle things however it wants. */
+
+/* Bits per pixel of output. Can be 15, 16, 32, or 24 (same as 32). */
+#define SNES_NTSC_OUT_DEPTH 32
+
+/* Type of input pixel values */
+#define SNES_NTSC_IN_T unsigned short
+
+/* Each raw pixel input value is passed through this. You might want to mask
+the pixel index if you use the high bits as flags, etc. */
+#define SNES_NTSC_ADJ_IN( in ) in
+
+/* For each pixel, this is the basic operation:
+output_color = SNES_NTSC_ADJ_IN( SNES_NTSC_IN_T ) */
+
+#endif

bsnes/filter/snes_ntsc/snes_ntsc_impl.h

@@ -0,0 +1,439 @@
+/* snes_ntsc 0.2.2. http://www.slack.net/~ant/ */
+
+/* Common implementation of NTSC filters */
+
+#include <assert.h>
+#include <math.h>
+
+/* Copyright (C) 2006 Shay Green. This module is free software; you
+can redistribute it and/or modify it under the terms of the GNU Lesser
+General Public License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version. This
+module is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
+details. You should have received a copy of the GNU Lesser General Public
+License along with this module; if not, write to the Free Software Foundation,
+Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */
+
+#define DISABLE_CORRECTION 0
+
+#undef PI
+#define PI 3.14159265358979323846f
+
+#ifndef LUMA_CUTOFF
+	#define LUMA_CUTOFF 0.20
+#endif
+#ifndef gamma_size
+	#define gamma_size 1
+#endif
+#ifndef rgb_bits
+	#define rgb_bits 8
+#endif
+#ifndef artifacts_max
+	#define artifacts_max (artifacts_mid * 1.5f)
+#endif
+#ifndef fringing_max
+	#define fringing_max (fringing_mid * 2)
+#endif
+#ifndef STD_HUE_CONDITION
+	#define STD_HUE_CONDITION( setup ) 1
+#endif
+
+#define ext_decoder_hue     (std_decoder_hue + 15)
+#define rgb_unit            (1 << rgb_bits)
+#define rgb_offset          (rgb_unit * 2 + 0.5f)
+
+enum { burst_size  = snes_ntsc_entry_size / burst_count };
+enum { kernel_half = 16 };
+enum { kernel_size = kernel_half * 2 + 1 };
+
+typedef struct init_t
+{
+	float to_rgb [burst_count * 6];
+	float to_float [gamma_size];
+	float contrast;
+	float brightness;
+	float artifacts;
+	float fringing;
+	float kernel [rescale_out * kernel_size * 2];
+} init_t;
+
+#define ROTATE_IQ( i, q, sin_b, cos_b ) {\
+	float t;\
+	t = i * cos_b - q * sin_b;\
+	q = i * sin_b + q * cos_b;\
+	i = t;\
+}
+
+static void init_filters( init_t* impl, snes_ntsc_setup_t const* setup )
+{
+#if rescale_out > 1
+	float kernels [kernel_size * 2];
+#else
+	float* const kernels = impl->kernel;
+#endif
+
+	/* generate luma (y) filter using sinc kernel */
+	{
+		/* sinc with rolloff (dsf) */
+		float const rolloff = 1 + (float) setup->sharpness * (float) 0.032;
+		float const maxh = 32;
+		float const pow_a_n = (float) pow( rolloff, maxh );
+		float sum;
+		int i;
+		/* quadratic mapping to reduce negative (blurring) range */
+		float to_angle = (float) setup->resolution + 1;
+		to_angle = PI / maxh * (float) LUMA_CUTOFF * (to_angle * to_angle + 1);
+		
+		kernels [kernel_size * 3 / 2] = maxh; /* default center value */
+		for ( i = 0; i < kernel_half * 2 + 1; i++ )
+		{
+			int x = i - kernel_half;
+			float angle = x * to_angle;
+			/* instability occurs at center point with rolloff very close to 1.0 */
+			if ( x || pow_a_n > (float) 1.056 || pow_a_n < (float) 0.981 )
+			{
+				float rolloff_cos_a = rolloff * (float) cos( angle );
+				float num = 1 - rolloff_cos_a -
+						pow_a_n * (float) cos( maxh * angle ) +
+						pow_a_n * rolloff * (float) cos( (maxh - 1) * angle );
+				float den = 1 - rolloff_cos_a - rolloff_cos_a + rolloff * rolloff;
+				float dsf = num / den;
+				kernels [kernel_size * 3 / 2 - kernel_half + i] = dsf - (float) 0.5;
+			}
+		}
+		
+		/* apply blackman window and find sum */
+		sum = 0;
+		for ( i = 0; i < kernel_half * 2 + 1; i++ )
+		{
+			float x = PI * 2 / (kernel_half * 2) * i;
+			float blackman = 0.42f - 0.5f * (float) cos( x ) + 0.08f * (float) cos( x * 2 );
+			sum += (kernels [kernel_size * 3 / 2 - kernel_half + i] *= blackman);
+		}
+		
+		/* normalize kernel */
+		sum = 1.0f / sum;
+		for ( i = 0; i < kernel_half * 2 + 1; i++ )
+		{
+			int x = kernel_size * 3 / 2 - kernel_half + i;
+			kernels [x] *= sum;
+			assert( kernels [x] == kernels [x] ); /* catch numerical instability */
+		}
+	}
+
+	/* generate chroma (iq) filter using gaussian kernel */
+	{
+		float const cutoff_factor = -0.03125f;
+		float cutoff = (float) setup->bleed;
+		int i;
+		
+		if ( cutoff < 0 )
+		{
+			/* keep extreme value accessible only near upper end of scale (1.0) */
+			cutoff *= cutoff;
+			cutoff *= cutoff;
+			cutoff *= cutoff;
+			cutoff *= -30.0f / 0.65f;
+		}
+		cutoff = cutoff_factor - 0.65f * cutoff_factor * cutoff;
+		
+		for ( i = -kernel_half; i <= kernel_half; i++ )
+			kernels [kernel_size / 2 + i] = (float) exp( i * i * cutoff );
+		
+		/* normalize even and odd phases separately */
+		for ( i = 0; i < 2; i++ )
+		{
+			float sum = 0;
+			int x;
+			for ( x = i; x < kernel_size; x += 2 )
+				sum += kernels [x];
+			
+			sum = 1.0f / sum;
+			for ( x = i; x < kernel_size; x += 2 )
+			{
+				kernels [x] *= sum;
+				assert( kernels [x] == kernels [x] ); /* catch numerical instability */
+			}
+		}
+	}
+	
+	/*
+	printf( "luma:\n" );
+	for ( i = kernel_size; i < kernel_size * 2; i++ )
+		printf( "%f\n", kernels [i] );
+	printf( "chroma:\n" );
+	for ( i = 0; i < kernel_size; i++ )
+		printf( "%f\n", kernels [i] );
+	*/
+	
+	/* generate linear rescale kernels */
+	#if rescale_out > 1
+	{
+		float weight = 1.0f;
+		float* out = impl->kernel;
+		int n = rescale_out;
+		do
+		{
+			float remain = 0;
+			int i;
+			weight -= 1.0f / rescale_in;
+			for ( i = 0; i < kernel_size * 2; i++ )
+			{
+				float cur = kernels [i];
+				float m = cur * weight;
+				*out++ = m + remain;
+				remain = cur - m;
+			}
+		}
+		while ( --n );
+	}
+	#endif
+}
+
+static float const default_decoder [6] =
+	{ 0.956f, 0.621f, -0.272f, -0.647f, -1.105f, 1.702f };
+
+static void init( init_t* impl, snes_ntsc_setup_t const* setup )
+{
+	impl->brightness = (float) setup->brightness * (0.5f * rgb_unit) + rgb_offset;
+	impl->contrast   = (float) setup->contrast   * (0.5f * rgb_unit) + rgb_unit;
+	#ifdef default_palette_contrast
+		if ( !setup->palette )
+			impl->contrast *= default_palette_contrast;
+	#endif
+	
+	impl->artifacts = (float) setup->artifacts;
+	if ( impl->artifacts > 0 )
+		impl->artifacts *= artifacts_max - artifacts_mid;
+	impl->artifacts = impl->artifacts * artifacts_mid + artifacts_mid;
+
+	impl->fringing = (float) setup->fringing;
+	if ( impl->fringing > 0 )
+		impl->fringing *= fringing_max - fringing_mid;
+	impl->fringing = impl->fringing * fringing_mid + fringing_mid;
+	
+	init_filters( impl, setup );
+	
+	/* generate gamma table */
+	if ( gamma_size > 1 )
+	{
+		float const to_float = 1.0f / (gamma_size - (gamma_size > 1));
+		float const gamma = 1.1333f - (float) setup->gamma * 0.5f;
+		/* match common PC's 2.2 gamma to TV's 2.65 gamma */
+		int i;
+		for ( i = 0; i < gamma_size; i++ )
+			impl->to_float [i] =
+					(float) pow( i * to_float, gamma ) * impl->contrast + impl->brightness;
+	}
+	
+	/* setup decoder matricies */
+	{
+		float hue = (float) setup->hue * PI + PI / 180 * ext_decoder_hue;
+		float sat = (float) setup->saturation + 1;
+		float const* decoder = setup->decoder_matrix;
+		if ( !decoder )
+		{
+			decoder = default_decoder;
+			if ( STD_HUE_CONDITION( setup ) )
+				hue += PI / 180 * (std_decoder_hue - ext_decoder_hue);
+		}
+		
+		{
+			float s = (float) sin( hue ) * sat;
+			float c = (float) cos( hue ) * sat;
+			float* out = impl->to_rgb;
+			int n;
+			
+			n = burst_count;
+			do
+			{
+				float const* in = decoder;
+				int n = 3;
+				do
+				{
+					float i = *in++;
+					float q = *in++;
+					*out++ = i * c - q * s;
+					*out++ = i * s + q * c;
+				}
+				while ( --n );
+				if ( burst_count <= 1 )
+					break;
+				ROTATE_IQ( s, c, 0.866025f, -0.5f ); /* +120 degrees */
+			}
+			while ( --n );
+		}
+	}
+}
+
+/* kernel generation */
+
+#define RGB_TO_YIQ( r, g, b, y, i ) (\
+	(y = (r) * 0.299f + (g) * 0.587f + (b) * 0.114f),\
+	(i = (r) * 0.596f - (g) * 0.275f - (b) * 0.321f),\
+	((r) * 0.212f - (g) * 0.523f + (b) * 0.311f)\
+)
+
+#define YIQ_TO_RGB( y, i, q, to_rgb, type, r, g ) (\
+	r = (type) (y + to_rgb [0] * i + to_rgb [1] * q),\
+	g = (type) (y + to_rgb [2] * i + to_rgb [3] * q),\
+	(type) (y + to_rgb [4] * i + to_rgb [5] * q)\
+)
+
+#define PACK_RGB( r, g, b ) ((r) << 21 | (g) << 11 | (b) << 1)
+
+enum { rgb_kernel_size = burst_size / alignment_count };
+enum { rgb_bias = rgb_unit * 2 * snes_ntsc_rgb_builder };
+
+typedef struct pixel_info_t
+{
+	int offset;
+	float negate;
+	float kernel [4];
+} pixel_info_t;
+
+#if rescale_in > 1
+	#define PIXEL_OFFSET_( ntsc, scaled ) \
+		(kernel_size / 2 + ntsc + (scaled != 0) + (rescale_out - scaled) % rescale_out + \
+				(kernel_size * 2 * scaled))
+
+	#define PIXEL_OFFSET( ntsc, scaled ) \
+		PIXEL_OFFSET_( ((ntsc) - (scaled) / rescale_out * rescale_in),\
+				(((scaled) + rescale_out * 10) % rescale_out) ),\
+		(1.0f - (((ntsc) + 100) & 2))
+#else
+	#define PIXEL_OFFSET( ntsc, scaled ) \
+		(kernel_size / 2 + (ntsc) - (scaled)),\
+		(1.0f - (((ntsc) + 100) & 2))
+#endif
+
+extern pixel_info_t const snes_ntsc_pixels [alignment_count];
+
+/* Generate pixel at all burst phases and column alignments */
+static void gen_kernel( init_t* impl, float y, float i, float q, snes_ntsc_rgb_t* out )
+{
+	/* generate for each scanline burst phase */
+	float const* to_rgb = impl->to_rgb;
+	int burst_remain = burst_count;
+	y -= rgb_offset;
+	do
+	{
+		/* Encode yiq into *two* composite signals (to allow control over artifacting).
+		Convolve these with kernels which: filter respective components, apply
+		sharpening, and rescale horizontally. Convert resulting yiq to rgb and pack
+		into integer. Based on algorithm by NewRisingSun. */
+		pixel_info_t const* pixel = snes_ntsc_pixels;
+		int alignment_remain = alignment_count;
+		do
+		{
+			/* negate is -1 when composite starts at odd multiple of 2 */
+			float const yy = y * impl->fringing * pixel->negate;
+			float const ic0 = (i + yy) * pixel->kernel [0];
+			float const qc1 = (q + yy) * pixel->kernel [1];
+			float const ic2 = (i - yy) * pixel->kernel [2];
+			float const qc3 = (q - yy) * pixel->kernel [3];
+			
+			float const factor = impl->artifacts * pixel->negate;
+			float const ii = i * factor;
+			float const yc0 = (y + ii) * pixel->kernel [0];
+			float const yc2 = (y - ii) * pixel->kernel [2];
+			
+			float const qq = q * factor;
+			float const yc1 = (y + qq) * pixel->kernel [1];
+			float const yc3 = (y - qq) * pixel->kernel [3];
+			
+			float const* k = &impl->kernel [pixel->offset];
+			int n;
+			++pixel;
+			for ( n = rgb_kernel_size; n; --n )
+			{
+				float i = k[0]*ic0 + k[2]*ic2;
+				float q = k[1]*qc1 + k[3]*qc3;
+				float y = k[kernel_size+0]*yc0 + k[kernel_size+1]*yc1 +
+				          k[kernel_size+2]*yc2 + k[kernel_size+3]*yc3 + rgb_offset;
+				if ( rescale_out <= 1 )
+					k--;
+				else if ( k < &impl->kernel [kernel_size * 2 * (rescale_out - 1)] )
+					k += kernel_size * 2 - 1;
+				else
+					k -= kernel_size * 2 * (rescale_out - 1) + 2;
+				{
+					int r, g, b = YIQ_TO_RGB( y, i, q, to_rgb, int, r, g );
+					*out++ = PACK_RGB( r, g, b ) - rgb_bias;
+				}
+			}
+		}
+		while ( alignment_count > 1 && --alignment_remain );
+		
+		if ( burst_count <= 1 )
+			break;
+		
+		to_rgb += 6;
+		
+		ROTATE_IQ( i, q, -0.866025f, -0.5f ); /* -120 degrees */
+	}
+	while ( --burst_remain );
+}
+
+static void correct_errors( snes_ntsc_rgb_t color, snes_ntsc_rgb_t* out );
+
+#if DISABLE_CORRECTION
+	#define CORRECT_ERROR( a ) { out [i] += rgb_bias; }
+	#define DISTRIBUTE_ERROR( a, b, c ) { out [i] += rgb_bias; }
+#else
+	#define CORRECT_ERROR( a ) { out [a] += error; }
+	#define DISTRIBUTE_ERROR( a, b, c ) {\
+		snes_ntsc_rgb_t fourth = (error + 2 * snes_ntsc_rgb_builder) >> 2;\
+		fourth &= (rgb_bias >> 1) - snes_ntsc_rgb_builder;\
+		fourth -= rgb_bias >> 2;\
+		out [a] += fourth;\
+		out [b] += fourth;\
+		out [c] += fourth;\
+		out [i] += error - (fourth * 3);\
+	}
+#endif
+
+#define RGB_PALETTE_OUT( rgb, out_ )\
+{\
+	unsigned char* out = (out_);\
+	snes_ntsc_rgb_t clamped = (rgb);\
+	SNES_NTSC_CLAMP_( clamped, (8 - rgb_bits) );\
+	out [0] = (unsigned char) (clamped >> 21);\
+	out [1] = (unsigned char) (clamped >> 11);\
+	out [2] = (unsigned char) (clamped >>  1);\
+}
+
+/* blitter related */
+
+#ifndef restrict
+	#if defined (__GNUC__)
+		#define restrict __restrict__
+	#elif defined (_MSC_VER) && _MSC_VER > 1300
+		#define restrict __restrict
+	#else
+		/* no support for restricted pointers */
+		#define restrict
+	#endif
+#endif
+
+#include <limits.h>
+
+#if SNES_NTSC_OUT_DEPTH <= 16
+	#if USHRT_MAX == 0xFFFF
+		typedef unsigned short snes_ntsc_out_t;
+	#else
+		#error "Need 16-bit int type"
+	#endif
+
+#else
+	#if UINT_MAX == 0xFFFFFFFF
+		typedef unsigned int  snes_ntsc_out_t;
+	#elif ULONG_MAX == 0xFFFFFFFF
+		typedef unsigned long snes_ntsc_out_t;
+	#else
+		#error "Need 32-bit int type"
+	#endif
+
+#endif

bsnes/filter/super-2xsai.cpp

@@ -0,0 +1,25 @@
+namespace Filter::Super2xSaI {
+
+auto size(uint& width, uint& height) -> void {
+  width  *= 2;
+  height *= 2;
+}
+
+uint32_t temp[512 * 480];
+
+auto render(
+  uint32_t* colortable, uint32_t* output, uint outpitch,
+  const uint16_t* input, uint pitch, uint width, uint height
+) -> void {
+  for(unsigned y = 0; y < height; y++) {
+    const uint16_t *line_in = (const uint16_t*)(((const uint8_t*)input) + pitch * y);
+    uint32_t *line_out = temp + y * width;
+    for(unsigned x = 0; x < width; x++) {
+      line_out[x] = colortable[line_in[x]];
+    }
+  }
+
+  Super2xSaI32((unsigned char*)temp, width * sizeof(uint32_t), 0, (unsigned char*)output, outpitch, width, height);
+}
+
+}

bsnes/filter/super-eagle.cpp

@@ -0,0 +1,25 @@
+namespace Filter::SuperEagle {
+
+auto size(uint& width, uint& height) -> void {
+  width  *= 2;
+  height *= 2;
+}
+
+uint32_t temp[512 * 480];
+
+auto render(
+  uint32_t* colortable, uint32_t* output, uint outpitch,
+  const uint16_t* input, uint pitch, uint width, uint height
+) -> void {
+  for(unsigned y = 0; y < height; y++) {
+    const uint16_t *line_in = (const uint16_t*)(((const uint8_t*)input) + pitch * y);
+    uint32_t *line_out = temp + y * width;
+    for(unsigned x = 0; x < width; x++) {
+      line_out[x] = colortable[line_in[x]];
+    }
+  }
+
+  SuperEagle32((unsigned char*)temp, width * sizeof(uint32_t), 0, (unsigned char*)output, outpitch, width, height);
+}
+
+}

bsnes/gb/Core/apu.h

@@ -0,0 +1,164 @@
+#ifndef apu_h
+#define apu_h
+#include <stdbool.h>
+#include <stdint.h>
+#include <stddef.h>
+#include "gb_struct_def.h"
+
+
+#ifdef GB_INTERNAL
+/* Speed = 1 / Length (in seconds) */
+#define DAC_DECAY_SPEED 20000
+#define DAC_ATTACK_SPEED 20000
+
+
+/* Divides nicely and never overflows with 4 channels and 8 (1-8) volume levels */
+#ifdef WIIU
+/* Todo: Remove this hack once https://github.com/libretro/RetroArch/issues/6252 is fixed*/
+#define MAX_CH_AMP (0xFF0 / 2)
+#else
+#define MAX_CH_AMP 0xFF0
+#endif
+#define CH_STEP (MAX_CH_AMP/0xF/8)
+#endif
+
+
+
+/* APU ticks are 2MHz, triggered by an internal APU clock. */
+
+typedef struct
+{
+    int16_t left;
+    int16_t right;
+} GB_sample_t;
+
+typedef struct
+{
+    double left;
+    double right;
+} GB_double_sample_t;
+
+enum GB_CHANNELS {
+    GB_SQUARE_1,
+    GB_SQUARE_2,
+    GB_WAVE,
+    GB_NOISE,
+    GB_N_CHANNELS
+};
+
+typedef void (*GB_sample_callback_t)(GB_gameboy_t *gb, GB_sample_t *sample);
+
+typedef struct
+{
+    bool global_enable;
+    uint8_t apu_cycles;
+
+    uint8_t samples[GB_N_CHANNELS];
+    bool is_active[GB_N_CHANNELS];
+
+    uint8_t div_divider; // The DIV register ticks the APU at 512Hz, but is then divided
+                         // once more to generate 128Hz and 64Hz clocks
+
+    uint8_t lf_div; // The APU runs in 2MHz, but channels 1, 2 and 4 run in 1MHZ so we divide
+                    // need to divide the signal.
+
+    uint8_t square_sweep_countdown; // In 128Hz
+    uint8_t square_sweep_calculate_countdown; // In 2 MHz
+    uint16_t new_sweep_sample_legnth;
+    uint16_t shadow_sweep_sample_legnth;
+    bool sweep_enabled;
+    bool sweep_decreasing;
+
+    struct {
+        uint16_t pulse_length; // Reloaded from NRX1 (xorred), in 256Hz DIV ticks
+        uint8_t current_volume; // Reloaded from NRX2
+        uint8_t volume_countdown; // Reloaded from NRX2
+        uint8_t current_sample_index; /* For save state compatibility,
+                                         highest bit is reused (See NR14/NR24's
+                                         write code)*/
+
+        uint16_t sample_countdown; // in APU ticks (Reloaded from sample_length, xorred $7FF)
+        uint16_t sample_length; // From NRX3, NRX4, in APU ticks
+        bool length_enabled; // NRX4
+
+    } square_channels[2];
+
+    struct {
+        bool enable; // NR30
+        uint16_t pulse_length; // Reloaded from NR31 (xorred), in 256Hz DIV ticks
+        uint8_t shift; // NR32
+        uint16_t sample_length; // NR33, NR34, in APU ticks
+        bool length_enabled; // NR34
+
+        uint16_t sample_countdown; // in APU ticks (Reloaded from sample_length, xorred $7FF)
+        uint8_t current_sample_index;
+        uint8_t current_sample; // Current sample before shifting.
+
+        int8_t wave_form[32];
+        bool wave_form_just_read;
+    } wave_channel;
+
+    struct {
+        uint16_t pulse_length; // Reloaded from NR41 (xorred), in 256Hz DIV ticks
+        uint8_t current_volume; // Reloaded from NR42
+        uint8_t volume_countdown; // Reloaded from NR42
+        uint16_t lfsr;
+        bool narrow;
+
+        uint16_t sample_countdown; // in APU ticks (Reloaded from sample_length)
+        uint16_t sample_length; // From NR43, in APU ticks
+        bool length_enabled; // NR44
+
+        uint8_t alignment; // If (NR43 & 7) != 0, samples are aligned to 512KHz clock instead of
+                           // 1MHz. This variable keeps track of the alignment.
+
+    } noise_channel;
+
+    bool skip_div_event;
+    bool current_lfsr_sample;
+} GB_apu_t;
+
+typedef enum {
+    GB_HIGHPASS_OFF, // Do not apply any filter, keep DC offset
+    GB_HIGHPASS_ACCURATE, // Apply a highpass filter similar to the one used on hardware
+    GB_HIGHPASS_REMOVE_DC_OFFSET, // Remove DC Offset without affecting the waveform
+    GB_HIGHPASS_MAX
+} GB_highpass_mode_t;
+
+typedef struct {
+    unsigned sample_rate;
+
+    double sample_cycles; // In 8 MHz units
+    double cycles_per_sample;
+
+    // Samples are NOT normalized to MAX_CH_AMP * 4 at this stage!
+    unsigned cycles_since_render;
+    unsigned last_update[GB_N_CHANNELS];
+    GB_sample_t current_sample[GB_N_CHANNELS];
+    GB_sample_t summed_samples[GB_N_CHANNELS];
+    double dac_discharge[GB_N_CHANNELS];
+
+    GB_highpass_mode_t highpass_mode;
+    double highpass_rate;
+    GB_double_sample_t highpass_diff;
+    
+    GB_sample_callback_t sample_callback;
+    
+    bool rate_set_in_clocks;
+} GB_apu_output_t;
+
+void GB_set_sample_rate(GB_gameboy_t *gb, unsigned sample_rate);
+void GB_set_sample_rate_by_clocks(GB_gameboy_t *gb, double cycles_per_sample); /* Cycles are in 8MHz units */
+void GB_set_highpass_filter_mode(GB_gameboy_t *gb, GB_highpass_mode_t mode);
+void GB_apu_set_sample_callback(GB_gameboy_t *gb, GB_sample_callback_t callback);
+#ifdef GB_INTERNAL
+bool GB_apu_is_DAC_enabled(GB_gameboy_t *gb, unsigned index);
+void GB_apu_write(GB_gameboy_t *gb, uint8_t reg, uint8_t value);
+uint8_t GB_apu_read(GB_gameboy_t *gb, uint8_t reg);
+void GB_apu_div_event(GB_gameboy_t *gb);
+void GB_apu_init(GB_gameboy_t *gb);
+void GB_apu_run(GB_gameboy_t *gb);
+void GB_apu_update_cycles_per_sample(GB_gameboy_t *gb);
+#endif
+
+#endif /* apu_h */

bsnes/gb/Core/camera.c

@@ -0,0 +1,149 @@
+#include "gb.h"
+
+static int noise_seed = 0;
+
+/* This is not a complete emulation of the camera chip. Only the features used by the GameBoy Camera ROMs are supported.
+    We also do not emulate the timing of the real cart, as it might be actually faster than the webcam. */
+
+static uint8_t generate_noise(uint8_t x, uint8_t y)
+{
+    int value = (x + y * 128 + noise_seed);
+    uint8_t *data = (uint8_t *) &value;
+    unsigned hash = 0;
+
+    while ((int *) data != &value + 1) {
+        hash ^= (*data << 8);
+        if (hash & 0x8000) {
+            hash ^= 0x8a00;
+            hash ^= *data;
+        }
+        data++;
+        hash <<= 1;
+    }
+    return (hash >> 8);
+}
+
+static long get_processed_color(GB_gameboy_t *gb, uint8_t x, uint8_t y)
+{
+    if (x >= 128) {
+        x = 0;
+    }
+    if (y >= 112) {
+        y = 0;
+    }
+
+    long color = gb->camera_get_pixel_callback? gb->camera_get_pixel_callback(gb, x, y) : (generate_noise(x, y));
+
+    static const double gain_values[] =
+        {0.8809390, 0.9149149, 0.9457498, 0.9739758,
+         1.0000000, 1.0241412, 1.0466537, 1.0677433,
+         1.0875793, 1.1240310, 1.1568911, 1.1868043,
+         1.2142561, 1.2396208, 1.2743837, 1.3157323,
+         1.3525190, 1.3856512, 1.4157897, 1.4434309,
+         1.4689574, 1.4926697, 1.5148087, 1.5355703,
+         1.5551159, 1.5735801, 1.5910762, 1.6077008,
+         1.6235366, 1.6386550, 1.6531183, 1.6669808};
+    /* Multiply color by gain value */
+    color *= gain_values[gb->camera_registers[GB_CAMERA_GAIN_AND_EDGE_ENHACEMENT_FLAGS] & 0x1F];
+
+
+    /* Color is multiplied by the exposure register to simulate exposure. */
+    color = color * ((gb->camera_registers[GB_CAMERA_EXPOSURE_HIGH] << 8) + gb->camera_registers[GB_CAMERA_EXPOSURE_LOW]) / 0x1000;
+
+    return color;
+}
+
+uint8_t GB_camera_read_image(GB_gameboy_t *gb, uint16_t addr)
+{
+    if (gb->camera_registers[GB_CAMERA_SHOOT_AND_1D_FLAGS] & 1) {
+        /* Forbid reading the image while the camera is busy. */
+        return 0xFF;
+    }
+    uint8_t tile_x = addr / 0x10 % 0x10;
+    uint8_t tile_y = addr / 0x10 / 0x10;
+
+    uint8_t y = ((addr >> 1) & 0x7) + tile_y * 8;
+    uint8_t bit = addr & 1;
+
+    uint8_t ret = 0;
+
+    for (uint8_t x = tile_x * 8; x < tile_x * 8 + 8; x++) {
+
+        long color = get_processed_color(gb, x, y);
+
+        static const double edge_enhancement_ratios[] = {0.5, 0.75, 1, 1.25, 2, 3, 4, 5};
+        double edge_enhancement_ratio = edge_enhancement_ratios[(gb->camera_registers[GB_CAMERA_EDGE_ENHANCEMENT_INVERT_AND_VOLTAGE] >> 4) & 0x7];
+        if ((gb->camera_registers[GB_CAMERA_GAIN_AND_EDGE_ENHACEMENT_FLAGS] & 0xE0) == 0xE0) {
+                color += (color * 4) * edge_enhancement_ratio;
+                color -= get_processed_color(gb, x - 1, y) * edge_enhancement_ratio;
+                color -= get_processed_color(gb, x + 1, y) * edge_enhancement_ratio;
+                color -= get_processed_color(gb, x, y - 1) * edge_enhancement_ratio;
+                color -= get_processed_color(gb, x, y + 1) * edge_enhancement_ratio;
+        }
+
+
+        /* The camera's registers are used as a threshold pattern, which defines the dithering */
+        uint8_t pattern_base = ((x & 3) + (y & 3) * 4) * 3 + GB_CAMERA_DITHERING_PATTERN_START;
+
+        if (color < gb->camera_registers[pattern_base]) {
+            color = 3;
+        }
+        else if (color < gb->camera_registers[pattern_base + 1]) {
+            color = 2;
+        }
+        else if (color < gb->camera_registers[pattern_base + 2]) {
+            color = 1;
+        }
+        else {
+            color = 0;
+        }
+
+        ret <<= 1;
+        ret |= (color >> bit) & 1;
+    }
+
+    return ret;
+}
+
+void GB_set_camera_get_pixel_callback(GB_gameboy_t *gb, GB_camera_get_pixel_callback_t callback)
+{
+    gb->camera_get_pixel_callback = callback;
+}
+
+void GB_set_camera_update_request_callback(GB_gameboy_t *gb, GB_camera_update_request_callback_t callback)
+{
+    gb->camera_update_request_callback = callback;
+}
+
+void GB_camera_updated(GB_gameboy_t *gb)
+{
+    gb->camera_registers[GB_CAMERA_SHOOT_AND_1D_FLAGS] &= ~1;
+}
+
+void GB_camera_write_register(GB_gameboy_t *gb, uint16_t addr, uint8_t value)
+{
+    addr &= 0x7F;
+    if (addr == GB_CAMERA_SHOOT_AND_1D_FLAGS) {
+        value &= 0x7;
+        noise_seed = rand();
+        if ((value & 1) && !(gb->camera_registers[GB_CAMERA_SHOOT_AND_1D_FLAGS] & 1) && gb->camera_update_request_callback) {
+            /* If no callback is set, ignore the write as if the camera is instantly done */
+            gb->camera_registers[GB_CAMERA_SHOOT_AND_1D_FLAGS] |= 1;
+            gb->camera_update_request_callback(gb);
+        }
+    }
+    else {
+        if (addr >= 0x36) {
+            GB_log(gb, "Wrote invalid camera register %02x: %2x\n", addr, value);
+            return;
+        }
+        gb->camera_registers[addr] = value;
+    }
+}
+uint8_t GB_camera_read_register(GB_gameboy_t *gb, uint16_t addr)
+{
+    if ((addr & 0x7F) == 0) {
+        return gb->camera_registers[GB_CAMERA_SHOOT_AND_1D_FLAGS];
+    }
+    return 0;
+}

bsnes/gb/Core/camera.h

@@ -0,0 +1,29 @@
+#ifndef camera_h
+#define camera_h
+#include <stdint.h>
+#include "gb_struct_def.h"
+
+typedef uint8_t (*GB_camera_get_pixel_callback_t)(GB_gameboy_t *gb, uint8_t x, uint8_t y);
+typedef void (*GB_camera_update_request_callback_t)(GB_gameboy_t *gb);
+
+enum {
+    GB_CAMERA_SHOOT_AND_1D_FLAGS = 0,
+    GB_CAMERA_GAIN_AND_EDGE_ENHACEMENT_FLAGS = 1,
+    GB_CAMERA_EXPOSURE_HIGH = 2,
+    GB_CAMERA_EXPOSURE_LOW = 3,
+    GB_CAMERA_EDGE_ENHANCEMENT_INVERT_AND_VOLTAGE = 4,
+    GB_CAMERA_DITHERING_PATTERN_START = 6,
+    GB_CAMERA_DITHERING_PATTERN_END = 0x35,
+};
+
+uint8_t GB_camera_read_image(GB_gameboy_t *gb, uint16_t addr);
+
+void GB_set_camera_get_pixel_callback(GB_gameboy_t *gb, GB_camera_get_pixel_callback_t callback);
+void GB_set_camera_update_request_callback(GB_gameboy_t *gb, GB_camera_update_request_callback_t callback);
+
+void GB_camera_updated(GB_gameboy_t *gb);
+
+void GB_camera_write_register(GB_gameboy_t *gb, uint16_t addr, uint8_t value);
+uint8_t GB_camera_read_register(GB_gameboy_t *gb, uint16_t addr);
+
+#endif

bsnes/gb/Core/debugger.h

@@ -0,0 +1,43 @@
+#ifndef debugger_h
+#define debugger_h
+#include <stdbool.h>
+#include <stdint.h>
+#include "gb_struct_def.h"
+#include "symbol_hash.h"
+
+
+#ifdef GB_INTERNAL
+#ifdef DISABLE_DEBUGGER
+#define GB_debugger_run(gb) (void)0
+#define GB_debugger_handle_async_commands(gb) (void)0
+#define GB_debugger_ret_hook(gb) (void)0
+#define GB_debugger_call_hook(gb, addr) (void)addr
+#define GB_debugger_test_write_watchpoint(gb, addr, value) ((void)addr, (void)value)
+#define GB_debugger_test_read_watchpoint(gb, addr) (void)addr
+#else
+void GB_debugger_run(GB_gameboy_t *gb);
+void GB_debugger_handle_async_commands(GB_gameboy_t *gb);
+void GB_debugger_call_hook(GB_gameboy_t *gb, uint16_t call_addr);
+void GB_debugger_ret_hook(GB_gameboy_t *gb);
+void GB_debugger_test_write_watchpoint(GB_gameboy_t *gb, uint16_t addr, uint8_t value);
+void GB_debugger_test_read_watchpoint(GB_gameboy_t *gb, uint16_t addr);
+const GB_bank_symbol_t *GB_debugger_find_symbol(GB_gameboy_t *gb, uint16_t addr);
+#endif /* DISABLE_DEBUGGER */
+#endif
+
+#ifdef GB_INTERNAL
+bool /* Returns true if debugger waits for more commands. Not relevant for non-GB_INTERNAL */
+#else
+void
+#endif
+GB_debugger_execute_command(GB_gameboy_t *gb, char *input); /* Destroys input. */
+
+
+void GB_debugger_load_symbol_file(GB_gameboy_t *gb, const char *path);
+const char *GB_debugger_name_for_address(GB_gameboy_t *gb, uint16_t addr);
+bool GB_debugger_evaluate(GB_gameboy_t *gb, const char *string, uint16_t *result, uint16_t *result_bank); /* result_bank is -1 if unused. */
+void GB_debugger_break(GB_gameboy_t *gb);
+bool GB_debugger_is_stopped(GB_gameboy_t *gb);
+void GB_debugger_set_disabled(GB_gameboy_t *gb, bool disabled);
+void GB_debugger_clear_symbols(GB_gameboy_t *gb);
+#endif /* debugger_h */

bsnes/gb/Core/display.h

@@ -0,0 +1,54 @@
+#ifndef display_h
+#define display_h
+
+#include "gb.h"
+#include <stdbool.h>
+#include <stdint.h>
+
+#ifdef GB_INTERNAL
+void GB_display_run(GB_gameboy_t *gb, uint8_t cycles);
+void GB_palette_changed(GB_gameboy_t *gb, bool background_palette, uint8_t index);
+void GB_window_related_write(GB_gameboy_t *gb, uint8_t addr, uint8_t value);
+void GB_STAT_update(GB_gameboy_t *gb);
+void GB_lcd_off(GB_gameboy_t *gb);
+#endif
+
+typedef enum {
+    GB_PALETTE_NONE,
+    GB_PALETTE_BACKGROUND,
+    GB_PALETTE_OAM,
+    GB_PALETTE_AUTO,
+} GB_palette_type_t;
+
+typedef enum {
+    GB_MAP_AUTO,
+    GB_MAP_9800,
+    GB_MAP_9C00,
+} GB_map_type_t;
+
+typedef enum {
+    GB_TILESET_AUTO,
+    GB_TILESET_8800,
+    GB_TILESET_8000,
+} GB_tileset_type_t;
+
+typedef struct {
+    uint32_t image[128];
+    uint8_t x, y, tile, flags;
+    uint16_t oam_addr;
+    bool obscured_by_line_limit;
+} GB_oam_info_t;
+
+typedef enum {
+    GB_COLOR_CORRECTION_DISABLED,
+    GB_COLOR_CORRECTION_CORRECT_CURVES,
+    GB_COLOR_CORRECTION_EMULATE_HARDWARE,
+    GB_COLOR_CORRECTION_PRESERVE_BRIGHTNESS,
+} GB_color_correction_mode_t;
+
+void GB_draw_tileset(GB_gameboy_t *gb, uint32_t *dest, GB_palette_type_t palette_type, uint8_t palette_index);
+void GB_draw_tilemap(GB_gameboy_t *gb, uint32_t *dest, GB_palette_type_t palette_type, uint8_t palette_index, GB_map_type_t map_type, GB_tileset_type_t tileset_type);
+uint8_t GB_get_oam_info(GB_gameboy_t *gb, GB_oam_info_t *dest, uint8_t *sprite_height);
+uint32_t GB_convert_rgb15(GB_gameboy_t *gb, uint16_t color);
+void GB_set_color_correction_mode(GB_gameboy_t *gb, GB_color_correction_mode_t mode);
+#endif /* display_h */

bsnes/gb/Core/gb.h

@@ -0,0 +1,725 @@
+#ifndef GB_h
+#define GB_h
+#define typeof __typeof__
+#include <stdbool.h>
+#include <stdint.h>
+#include <time.h>
+
+#include "gb_struct_def.h"
+#include "save_state.h"
+
+#include "apu.h"
+#include "camera.h"
+#include "debugger.h"
+#include "display.h"
+#include "joypad.h"
+#include "mbc.h"
+#include "memory.h"
+#include "printer.h"
+#include "timing.h"
+#include "rewind.h"
+#include "sm83_cpu.h"
+#include "symbol_hash.h"
+#include "sgb.h"
+
+#define GB_STRUCT_VERSION 13
+
+#define GB_MODEL_FAMILY_MASK 0xF00
+#define GB_MODEL_DMG_FAMILY 0x000
+#define GB_MODEL_MGB_FAMILY 0x100
+#define GB_MODEL_CGB_FAMILY 0x200
+#define GB_MODEL_PAL_BIT 0x1000
+#define GB_MODEL_NO_SFC_BIT 0x2000
+
+#ifdef GB_INTERNAL
+#if __clang__
+#define UNROLL _Pragma("unroll")
+#elif __GNUC__
+#define UNROLL _Pragma("GCC unroll 8")
+#else
+#define UNROLL
+#endif
+
+#endif
+
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+#define GB_BIG_ENDIAN
+#elif __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+#define GB_LITTLE_ENDIAN
+#else
+#error Unable to detect endianess
+#endif
+
+typedef union {
+    struct {
+        uint8_t seconds;
+        uint8_t minutes;
+        uint8_t hours;
+        uint8_t days;
+        uint8_t high;
+    };
+    uint8_t data[5];
+} GB_rtc_time_t;
+
+
+typedef enum {
+    // GB_MODEL_DMG_0 = 0x000,
+    // GB_MODEL_DMG_A = 0x001,
+    GB_MODEL_DMG_B = 0x002,
+    // GB_MODEL_DMG_C = 0x003,
+    GB_MODEL_SGB = 0x004,
+    GB_MODEL_SGB_NTSC = GB_MODEL_SGB,
+    GB_MODEL_SGB_PAL = GB_MODEL_SGB | GB_MODEL_PAL_BIT,
+    GB_MODEL_SGB_NTSC_NO_SFC = GB_MODEL_SGB | GB_MODEL_NO_SFC_BIT,
+    GB_MODEL_SGB_NO_SFC = GB_MODEL_SGB_NTSC_NO_SFC,
+    GB_MODEL_SGB_PAL_NO_SFC = GB_MODEL_SGB | GB_MODEL_NO_SFC_BIT | GB_MODEL_PAL_BIT,
+    // GB_MODEL_MGB = 0x100,
+    GB_MODEL_SGB2 = 0x101,
+    GB_MODEL_SGB2_NO_SFC = GB_MODEL_SGB2 | GB_MODEL_NO_SFC_BIT,
+    // GB_MODEL_CGB_0 = 0x200,
+    // GB_MODEL_CGB_A = 0x201,
+    // GB_MODEL_CGB_B = 0x202,
+    GB_MODEL_CGB_C = 0x203,
+    // GB_MODEL_CGB_D = 0x204,
+    GB_MODEL_CGB_E = 0x205,
+    GB_MODEL_AGB = 0x206,
+} GB_model_t;
+
+enum {
+    GB_REGISTER_AF,
+    GB_REGISTER_BC,
+    GB_REGISTER_DE,
+    GB_REGISTER_HL,
+    GB_REGISTER_SP,
+    GB_REGISTERS_16_BIT /* Count */
+};
+
+/* Todo: Actually use these! */
+enum {
+    GB_CARRY_FLAG = 16,
+    GB_HALF_CARRY_FLAG = 32,
+    GB_SUBSTRACT_FLAG = 64,
+    GB_ZERO_FLAG = 128,
+};
+
+#define GB_MAX_IR_QUEUE 256
+
+enum {
+    /* Joypad and Serial */
+    GB_IO_JOYP       = 0x00, // Joypad (R/W)
+    GB_IO_SB         = 0x01, // Serial transfer data (R/W)
+    GB_IO_SC         = 0x02, // Serial Transfer Control (R/W)
+
+    /* Missing */
+
+    /* Timers */
+    GB_IO_DIV        = 0x04, // Divider Register (R/W)
+    GB_IO_TIMA       = 0x05, // Timer counter (R/W)
+    GB_IO_TMA        = 0x06, // Timer Modulo (R/W)
+    GB_IO_TAC        = 0x07, // Timer Control (R/W)
+
+    /* Missing */
+
+    GB_IO_IF         = 0x0f, // Interrupt Flag (R/W)
+
+    /* Sound */
+    GB_IO_NR10       = 0x10, // Channel 1 Sweep register (R/W)
+    GB_IO_NR11       = 0x11, // Channel 1 Sound length/Wave pattern duty (R/W)
+    GB_IO_NR12       = 0x12, // Channel 1 Volume Envelope (R/W)
+    GB_IO_NR13       = 0x13, // Channel 1 Frequency lo (Write Only)
+    GB_IO_NR14       = 0x14, // Channel 1 Frequency hi (R/W)
+    /* NR20 does not exist */
+    GB_IO_NR21       = 0x16, // Channel 2 Sound Length/Wave Pattern Duty (R/W)
+    GB_IO_NR22       = 0x17, // Channel 2 Volume Envelope (R/W)
+    GB_IO_NR23       = 0x18, // Channel 2 Frequency lo data (W)
+    GB_IO_NR24       = 0x19, // Channel 2 Frequency hi data (R/W)
+    GB_IO_NR30       = 0x1a, // Channel 3 Sound on/off (R/W)
+    GB_IO_NR31       = 0x1b, // Channel 3 Sound Length
+    GB_IO_NR32       = 0x1c, // Channel 3 Select output level (R/W)
+    GB_IO_NR33       = 0x1d, // Channel 3 Frequency's lower data (W)
+    GB_IO_NR34       = 0x1e, // Channel 3 Frequency's higher data (R/W)
+    /* NR40 does not exist */
+    GB_IO_NR41       = 0x20, // Channel 4 Sound Length (R/W)
+    GB_IO_NR42       = 0x21, // Channel 4 Volume Envelope (R/W)
+    GB_IO_NR43       = 0x22, // Channel 4 Polynomial Counter (R/W)
+    GB_IO_NR44       = 0x23, // Channel 4 Counter/consecutive, Inital (R/W)
+    GB_IO_NR50       = 0x24, // Channel control / ON-OFF / Volume (R/W)
+    GB_IO_NR51       = 0x25, // Selection of Sound output terminal (R/W)
+    GB_IO_NR52       = 0x26, // Sound on/off
+
+    /* Missing */
+
+    GB_IO_WAV_START  = 0x30, // Wave pattern start
+    GB_IO_WAV_END    = 0x3f, // Wave pattern end
+
+    /* Graphics */
+    GB_IO_LCDC       = 0x40, // LCD Control (R/W)
+    GB_IO_STAT       = 0x41, // LCDC Status (R/W)
+    GB_IO_SCY        = 0x42, // Scroll Y (R/W)
+    GB_IO_SCX        = 0x43, // Scroll X (R/W)
+    GB_IO_LY         = 0x44, // LCDC Y-Coordinate (R)
+    GB_IO_LYC        = 0x45, // LY Compare (R/W)
+    GB_IO_DMA        = 0x46, // DMA Transfer and Start Address (W)
+    GB_IO_BGP        = 0x47, // BG Palette Data (R/W) - Non CGB Mode Only
+    GB_IO_OBP0       = 0x48, // Object Palette 0 Data (R/W) - Non CGB Mode Only
+    GB_IO_OBP1       = 0x49, // Object Palette 1 Data (R/W) - Non CGB Mode Only
+    GB_IO_WY         = 0x4a, // Window Y Position (R/W)
+    GB_IO_WX         = 0x4b, // Window X Position minus 7 (R/W)
+    // Has some undocumented compatibility flags written at boot.
+    // Unfortunately it is not readable or writable after boot has finished, so research of this
+    // register is quite limited. The value written to this register, however, can be controlled
+    // in some cases.
+    GB_IO_DMG_EMULATION = 0x4c,
+
+    /* General CGB features */
+    GB_IO_KEY1       = 0x4d, // CGB Mode Only - Prepare Speed Switch
+
+    /* Missing */
+
+    GB_IO_VBK        = 0x4f, // CGB Mode Only - VRAM Bank
+    GB_IO_BIOS       = 0x50, // Write to disable the BIOS mapping
+
+    /* CGB DMA */
+    GB_IO_HDMA1      = 0x51, // CGB Mode Only - New DMA Source, High
+    GB_IO_HDMA2      = 0x52, // CGB Mode Only - New DMA Source, Low
+    GB_IO_HDMA3      = 0x53, // CGB Mode Only - New DMA Destination, High
+    GB_IO_HDMA4      = 0x54, // CGB Mode Only - New DMA Destination, Low
+    GB_IO_HDMA5      = 0x55, // CGB Mode Only - New DMA Length/Mode/Start
+
+    /* IR */
+    GB_IO_RP         = 0x56, // CGB Mode Only - Infrared Communications Port
+
+    /* Missing */
+
+    /* CGB Paletts */
+    GB_IO_BGPI       = 0x68, // CGB Mode Only - Background Palette Index
+    GB_IO_BGPD       = 0x69, // CGB Mode Only - Background Palette Data
+    GB_IO_OBPI       = 0x6a, // CGB Mode Only - Sprite Palette Index
+    GB_IO_OBPD       = 0x6b, // CGB Mode Only - Sprite Palette Data
+
+    // 1 is written for DMG ROMs on a CGB. Does not appear to have an effect.
+    GB_IO_DMG_EMULATION_INDICATION   = 0x6c, // (FEh) Bit 0 (Read/Write)
+
+    /* Missing */
+
+    GB_IO_SVBK       = 0x70, // CGB Mode Only - WRAM Bank
+    GB_IO_UNKNOWN2   = 0x72, // (00h) - Bit 0-7 (Read/Write)
+    GB_IO_UNKNOWN3   = 0x73, // (00h) - Bit 0-7 (Read/Write)
+    GB_IO_UNKNOWN4   = 0x74, // (00h) - Bit 0-7 (Read/Write) - CGB Mode Only
+    GB_IO_UNKNOWN5   = 0x75, // (8Fh) - Bit 4-6 (Read/Write)
+    GB_IO_PCM_12     = 0x76, // Channels 1 and 2 amplitudes
+    GB_IO_PCM_34     = 0x77, // Channels 3 and 4 amplitudes
+    GB_IO_UNKNOWN8   = 0x7F, // Unknown, write only
+};
+
+typedef enum {
+    GB_LOG_BOLD = 1,
+    GB_LOG_DASHED_UNDERLINE = 2,
+    GB_LOG_UNDERLINE = 4,
+    GB_LOG_UNDERLINE_MASK =  GB_LOG_DASHED_UNDERLINE | GB_LOG_UNDERLINE
+} GB_log_attributes;
+
+#ifdef GB_INTERNAL
+#define LCDC_PERIOD 70224
+#define CPU_FREQUENCY 0x400000
+#define SGB_NTSC_FREQUENCY (21477272 / 5)
+#define SGB_PAL_FREQUENCY (21281370 / 5)
+#define DIV_CYCLES (0x100)
+#define INTERNAL_DIV_CYCLES (0x40000)
+
+#if !defined(MIN)
+#define MIN(A,B)    ({ __typeof__(A) __a = (A); __typeof__(B) __b = (B); __a < __b ? __a : __b; })
+#endif
+
+#if !defined(MAX)
+#define MAX(A,B)    ({ __typeof__(A) __a = (A); __typeof__(B) __b = (B); __a < __b ? __b : __a; })
+#endif
+#endif
+
+typedef void (*GB_vblank_callback_t)(GB_gameboy_t *gb);
+typedef void (*GB_log_callback_t)(GB_gameboy_t *gb, const char *string, GB_log_attributes attributes);
+typedef char *(*GB_input_callback_t)(GB_gameboy_t *gb);
+typedef uint32_t (*GB_rgb_encode_callback_t)(GB_gameboy_t *gb, uint8_t r, uint8_t g, uint8_t b);
+typedef void (*GB_infrared_callback_t)(GB_gameboy_t *gb, bool on, long cycles_since_last_update);
+typedef void (*GB_rumble_callback_t)(GB_gameboy_t *gb, bool rumble_on);
+typedef void (*GB_serial_transfer_bit_start_callback_t)(GB_gameboy_t *gb, bool bit_to_send);
+typedef bool (*GB_serial_transfer_bit_end_callback_t)(GB_gameboy_t *gb);
+typedef void (*GB_update_input_hint_callback_t)(GB_gameboy_t *gb);
+typedef void (*GB_joyp_write_callback_t)(GB_gameboy_t *gb, uint8_t value);
+typedef void (*GB_icd_pixel_callback_t)(GB_gameboy_t *gb, uint8_t row);
+typedef void (*GB_icd_hreset_callback_t)(GB_gameboy_t *gb);
+typedef void (*GB_icd_vreset_callback_t)(GB_gameboy_t *gb);
+
+typedef struct {
+    bool state;
+    long delay;
+} GB_ir_queue_item_t;
+
+struct GB_breakpoint_s;
+struct GB_watchpoint_s;
+
+typedef struct {
+    uint8_t pixel; // Color, 0-3
+    uint8_t palette; // Palette, 0 - 7 (CGB); 0-1 in DMG (or just 0 for BG)
+    uint8_t priority; // Sprite priority – 0 in DMG, OAM index in CGB
+    bool bg_priority; // For sprite FIFO – the BG priority bit. For the BG FIFO – the CGB attributes priority bit
+} GB_fifo_item_t;
+
+#define GB_FIFO_LENGTH 16
+typedef struct {
+    GB_fifo_item_t fifo[GB_FIFO_LENGTH];
+    uint8_t read_end;
+    uint8_t write_end;
+} GB_fifo_t;
+
+/* When state saving, each section is dumped independently of other sections.
+   This allows adding data to the end of the section without worrying about future compatibility.
+   Some other changes might be "safe" as well.
+   This struct is not packed, but dumped sections exclusively use types that have the same alignment in both 32 and 64
+   bit platforms. */
+
+#ifdef GB_INTERNAL
+struct GB_gameboy_s {
+#else
+struct GB_gameboy_internal_s {
+#endif
+    GB_SECTION(header,
+        /* The magic makes sure a state file is:
+            - Indeed a SameBoy state file.
+            - Has the same endianess has the current platform. */
+        volatile uint32_t magic;
+        /* The version field makes sure we don't load save state files with a completely different structure.
+           This happens when struct fields are removed/resized in an backward incompatible manner. */
+        uint32_t version;
+    );
+
+    GB_SECTION(core_state,
+        /* Registers */
+        uint16_t pc;
+           union {
+               uint16_t registers[GB_REGISTERS_16_BIT];
+               struct {
+                   uint16_t af,
+                            bc,
+                            de,
+                            hl,
+                            sp;
+               };
+               struct {
+#ifdef GB_BIG_ENDIAN
+                   uint8_t a, f,
+                           b, c,
+                           d, e,
+                           h, l;
+#else
+                   uint8_t f, a,
+                           c, b,
+                           e, d,
+                           l, h;
+#endif
+               };
+               
+           };
+        uint8_t ime;
+        uint8_t interrupt_enable;
+        uint8_t cgb_ram_bank;
+
+        /* CPU and General Hardware Flags*/
+        GB_model_t model;
+        bool cgb_mode;
+        bool cgb_double_speed;
+        bool halted;
+        bool stopped;
+        bool boot_rom_finished;
+        bool ime_toggle; /* ei has delayed a effect.*/
+        bool halt_bug;
+        bool just_halted;
+
+        /* Misc state */
+        bool infrared_input;
+        GB_printer_t printer;
+        uint8_t extra_oam[0xff00 - 0xfea0];
+        uint32_t ram_size; // Different between CGB and DMG
+    );
+
+    /* DMA and HDMA */
+    GB_SECTION(dma,
+        bool hdma_on;
+        bool hdma_on_hblank;
+        uint8_t hdma_steps_left;
+        int16_t hdma_cycles; // in 8MHz units
+        uint16_t hdma_current_src, hdma_current_dest;
+
+        uint8_t dma_steps_left;
+        uint8_t dma_current_dest;
+        uint16_t dma_current_src;
+        int16_t dma_cycles;
+        bool is_dma_restarting;
+        uint8_t last_opcode_read; /* Required to emulte HDMA reads from Exxx */
+        bool hdma_starting;
+    );
+    
+    /* MBC */
+    GB_SECTION(mbc,
+        uint16_t mbc_rom_bank;
+        uint8_t mbc_ram_bank;
+        uint32_t mbc_ram_size;
+        bool mbc_ram_enable;
+        union {
+            struct {
+                uint8_t bank_low:5;
+                uint8_t bank_high:2;
+                uint8_t mode:1;
+            } mbc1;
+
+            struct {
+                uint8_t rom_bank:4;
+            } mbc2;
+
+            struct {
+                uint8_t rom_bank:7;
+                uint8_t padding:1;
+                uint8_t ram_bank:4;
+            } mbc3;
+
+            struct {
+                uint8_t rom_bank_low;
+                uint8_t rom_bank_high:1;
+                uint8_t ram_bank:4;
+            } mbc5;
+            
+            struct {
+                uint8_t bank_low:6;
+                uint8_t bank_high:3;
+                uint8_t mode:1;
+            } huc1;
+
+            struct {
+                uint8_t rom_bank;
+                uint8_t ram_bank;
+            } huc3;
+        };
+        uint16_t mbc_rom0_bank; /* For some MBC1 wirings. */
+        bool camera_registers_mapped;
+        uint8_t camera_registers[0x36];
+        bool rumble_state;
+    );
+
+
+    /* HRAM and HW Registers */
+    GB_SECTION(hram,
+        uint8_t hram[0xFFFF - 0xFF80];
+        uint8_t io_registers[0x80];
+    );
+
+    /* Timing */
+    GB_SECTION(timing,
+        GB_UNIT(display);
+        GB_UNIT(div);
+        uint16_t div_counter;
+        uint8_t tima_reload_state; /* After TIMA overflows, it becomes 0 for 4 cycles before actually reloading. */
+        uint16_t serial_cycles;
+        uint16_t serial_length;
+        uint8_t double_speed_alignment;
+        uint8_t serial_count;
+    );
+
+    /* APU */
+    GB_SECTION(apu,
+        GB_apu_t apu;
+    );
+
+    /* RTC */
+    GB_SECTION(rtc,
+        GB_rtc_time_t rtc_real, rtc_latched;
+        uint64_t last_rtc_second;
+        bool rtc_latch;
+    );
+
+    /* Video Display */
+    GB_SECTION(video,
+        uint32_t vram_size; // Different between CGB and DMG
+        uint8_t cgb_vram_bank;
+        uint8_t oam[0xA0];
+        uint8_t background_palettes_data[0x40];
+        uint8_t sprite_palettes_data[0x40];
+        uint8_t position_in_line;
+        bool stat_interrupt_line;
+        uint8_t effective_scx;
+        uint8_t wy_diff;
+        /* The LCDC will skip the first frame it renders after turning it on.
+           On the CGB, a frame is not skipped if the previous frame was skipped as well.
+           See https://www.reddit.com/r/EmuDev/comments/6exyxu/ */
+               
+        /* TODO: Drop this and properly emulate the dropped vreset signal*/
+        enum {
+            GB_FRAMESKIP_LCD_TURNED_ON, // On a DMG, the LCD renders a blank screen during this state,
+                                        // on a CGB, the previous frame is repeated (which might be
+                                        // blank if the LCD was off for more than a few cycles)
+            GB_FRAMESKIP_FIRST_FRAME_SKIPPED, // This state is 'skipped' when emulating a DMG
+            GB_FRAMESKIP_SECOND_FRAME_RENDERED,
+        } frame_skip_state;
+        bool oam_read_blocked;
+        bool vram_read_blocked;
+        bool oam_write_blocked;
+        bool vram_write_blocked;
+        bool window_disabled_while_active;
+        uint8_t current_line;
+        uint16_t ly_for_comparison;
+        GB_fifo_t bg_fifo, oam_fifo;
+        uint8_t fetcher_x;
+        uint8_t fetcher_y;
+        uint16_t cycles_for_line;
+        uint8_t current_tile;
+        uint8_t current_tile_attributes;
+        uint8_t current_tile_data[2];
+        uint8_t fetcher_state;
+        bool bg_fifo_paused;
+        bool oam_fifo_paused;
+        bool in_window;
+        uint8_t visible_objs[10];
+        uint8_t obj_comparators[10];
+        uint8_t n_visible_objs;
+        uint8_t oam_search_index;
+        uint8_t accessed_oam_row;
+        uint8_t extra_penalty_for_sprite_at_0;
+        uint8_t mode_for_interrupt;
+        bool lyc_interrupt_line;
+        bool cgb_palettes_blocked;
+        uint8_t current_lcd_line; // The LCD can go out of sync since the vsync signal is skipped in some cases.
+        uint32_t cycles_in_stop_mode;
+    );
+
+    /* Unsaved data. This includes all pointers, as well as everything that shouldn't be on a save state */
+    /* This data is reserved on reset and must come last in the struct */
+    GB_SECTION(unsaved,
+        /* ROM */
+        uint8_t *rom;
+        uint32_t rom_size;
+        const GB_cartridge_t *cartridge_type;
+        enum {
+            GB_STANDARD_MBC1_WIRING,
+            GB_MBC1M_WIRING,
+        } mbc1_wiring;
+
+        unsigned pending_cycles;
+               
+        /* Various RAMs */
+        uint8_t *ram;
+        uint8_t *vram;
+        uint8_t *mbc_ram;
+
+        /* I/O */
+        uint32_t *screen;
+        uint32_t background_palettes_rgb[0x20];
+        uint32_t sprite_palettes_rgb[0x20];
+        GB_color_correction_mode_t color_correction_mode;
+        bool keys[4][GB_KEY_MAX];
+               
+        /* Timing */
+        uint64_t last_sync;
+        uint64_t cycles_since_last_sync; // In 8MHz units
+
+        /* Audio */
+        GB_apu_output_t apu_output;
+
+        /* Callbacks */
+        void *user_data;
+        GB_log_callback_t log_callback;
+        GB_input_callback_t input_callback;
+        GB_input_callback_t async_input_callback;
+        GB_rgb_encode_callback_t rgb_encode_callback;
+        GB_vblank_callback_t vblank_callback;
+        GB_infrared_callback_t infrared_callback;
+        GB_camera_get_pixel_callback_t camera_get_pixel_callback;
+        GB_camera_update_request_callback_t camera_update_request_callback;
+        GB_rumble_callback_t rumble_callback;
+        GB_serial_transfer_bit_start_callback_t serial_transfer_bit_start_callback;
+        GB_serial_transfer_bit_end_callback_t serial_transfer_bit_end_callback;
+        GB_update_input_hint_callback_t update_input_hint_callback;
+        GB_joyp_write_callback_t joyp_write_callback;
+        GB_icd_pixel_callback_t icd_pixel_callback;
+        GB_icd_vreset_callback_t icd_hreset_callback;
+        GB_icd_vreset_callback_t icd_vreset_callback;
+        GB_read_memory_callback_t read_memory_callback;
+               
+        /* IR */
+        long cycles_since_ir_change; // In 8MHz units
+        long cycles_since_input_ir_change; // In 8MHz units
+        GB_ir_queue_item_t ir_queue[GB_MAX_IR_QUEUE];
+        size_t ir_queue_length;
+
+        /*** Debugger ***/
+        volatile bool debug_stopped, debug_disable;
+        bool debug_fin_command, debug_next_command;
+
+        /* Breakpoints */
+        uint16_t n_breakpoints;
+        struct GB_breakpoint_s *breakpoints;
+        bool has_jump_to_breakpoints;
+        void *nontrivial_jump_state;
+        bool non_trivial_jump_breakpoint_occured;
+
+        /* SLD (Todo: merge with backtrace) */
+        bool stack_leak_detection;
+        int debug_call_depth;
+        uint16_t sp_for_call_depth[0x200]; /* Should be much more than enough */
+        uint16_t addr_for_call_depth[0x200];
+
+        /* Backtrace */
+        unsigned backtrace_size;
+        uint16_t backtrace_sps[0x200];
+        struct {
+            uint16_t bank;
+            uint16_t addr;
+        } backtrace_returns[0x200];
+
+        /* Watchpoints */
+        uint16_t n_watchpoints;
+        struct GB_watchpoint_s *watchpoints;
+
+        /* Symbol tables */
+        GB_symbol_map_t *bank_symbols[0x200];
+        GB_reversed_symbol_map_t reversed_symbol_map;
+
+        /* Ticks command */
+        unsigned long debugger_ticks;
+               
+        /* Rewind */
+#define GB_REWIND_FRAMES_PER_KEY 255
+        size_t rewind_buffer_length;
+        struct {
+            uint8_t *key_state;
+            uint8_t *compressed_states[GB_REWIND_FRAMES_PER_KEY];
+            unsigned pos;
+        } *rewind_sequences; // lasts about 4 seconds
+        size_t rewind_pos;
+               
+        /* SGB - saved and allocated optionally */
+        GB_sgb_t *sgb;
+        
+        double sgb_intro_jingle_phases[7];
+        double sgb_intro_sweep_phase;
+        double sgb_intro_sweep_previous_sample;
+
+        /* Misc */
+        bool turbo;
+        bool turbo_dont_skip;
+        bool disable_rendering;
+        uint8_t boot_rom[0x900];
+        bool vblank_just_occured; // For slow operations involving syscalls; these should only run once per vblank
+        uint8_t cycles_since_run; // How many cycles have passed since the last call to GB_run(), in 8MHz units
+        double clock_multiplier;
+   );
+};
+    
+#ifndef GB_INTERNAL
+struct GB_gameboy_s {
+    char __internal[sizeof(struct GB_gameboy_internal_s)];
+};
+#endif
+
+
+#ifndef __printflike
+/* Missing from Linux headers. */
+#define __printflike(fmtarg, firstvararg) \
+__attribute__((__format__ (__printf__, fmtarg, firstvararg)))
+#endif
+
+void GB_init(GB_gameboy_t *gb, GB_model_t model);
+bool GB_is_inited(GB_gameboy_t *gb);
+bool GB_is_cgb(GB_gameboy_t *gb);
+bool GB_is_sgb(GB_gameboy_t *gb); // Returns true if the model is SGB or SGB2
+bool GB_is_hle_sgb(GB_gameboy_t *gb); // Returns true if the model is SGB or SGB2 and the SFC/SNES side is HLE'd
+GB_model_t GB_get_model(GB_gameboy_t *gb);
+void GB_free(GB_gameboy_t *gb);
+void GB_reset(GB_gameboy_t *gb);
+void GB_switch_model_and_reset(GB_gameboy_t *gb, GB_model_t model);
+
+/* Returns the time passed, in 8MHz ticks. */
+uint8_t GB_run(GB_gameboy_t *gb);
+/* Returns the time passed since the last frame, in nanoseconds */
+uint64_t GB_run_frame(GB_gameboy_t *gb);
+
+typedef enum {
+    GB_DIRECT_ACCESS_ROM,
+    GB_DIRECT_ACCESS_RAM,
+    GB_DIRECT_ACCESS_CART_RAM,
+    GB_DIRECT_ACCESS_VRAM,
+    GB_DIRECT_ACCESS_HRAM,
+    GB_DIRECT_ACCESS_IO, /* Warning: Some registers can only be read/written correctly via GB_memory_read/write. */
+    GB_DIRECT_ACCESS_BOOTROM,
+    GB_DIRECT_ACCESS_OAM,
+    GB_DIRECT_ACCESS_BGP,
+    GB_DIRECT_ACCESS_OBP,
+    GB_DIRECT_ACCESS_IE,
+} GB_direct_access_t;
+
+/* Returns a mutable pointer to various hardware memories. If that memory is banked, the current bank
+   is returned at *bank, even if only a portion of the memory is banked. */
+void *GB_get_direct_access(GB_gameboy_t *gb, GB_direct_access_t access, size_t *size, uint16_t *bank);
+
+void *GB_get_user_data(GB_gameboy_t *gb);
+void GB_set_user_data(GB_gameboy_t *gb, void *data);
+
+
+
+int GB_load_boot_rom(GB_gameboy_t *gb, const char *path);
+void GB_load_boot_rom_from_buffer(GB_gameboy_t *gb, const unsigned char *buffer, size_t size);
+int GB_load_rom(GB_gameboy_t *gb, const char *path);
+void GB_load_rom_from_buffer(GB_gameboy_t *gb, const uint8_t *buffer, size_t size);
+
+int GB_save_battery_size(GB_gameboy_t *gb);
+int GB_save_battery_to_buffer(GB_gameboy_t *gb, uint8_t *buffer, size_t size);
+int GB_save_battery(GB_gameboy_t *gb, const char *path);
+
+void GB_load_battery_from_buffer(GB_gameboy_t *gb, const uint8_t *buffer, size_t size);
+void GB_load_battery(GB_gameboy_t *gb, const char *path);
+
+void GB_set_turbo_mode(GB_gameboy_t *gb, bool on, bool no_frame_skip);
+void GB_set_rendering_disabled(GB_gameboy_t *gb, bool disabled);
+    
+void GB_log(GB_gameboy_t *gb, const char *fmt, ...) __printflike(2, 3);
+void GB_attributed_log(GB_gameboy_t *gb, GB_log_attributes attributes, const char *fmt, ...) __printflike(3, 4);
+
+void GB_set_pixels_output(GB_gameboy_t *gb, uint32_t *output);
+
+void GB_set_infrared_input(GB_gameboy_t *gb, bool state);
+void GB_queue_infrared_input(GB_gameboy_t *gb, bool state, long cycles_after_previous_change); /* In 8MHz units*/
+    
+void GB_set_vblank_callback(GB_gameboy_t *gb, GB_vblank_callback_t callback);
+void GB_set_log_callback(GB_gameboy_t *gb, GB_log_callback_t callback);
+void GB_set_input_callback(GB_gameboy_t *gb, GB_input_callback_t callback);
+void GB_set_async_input_callback(GB_gameboy_t *gb, GB_input_callback_t callback);
+void GB_set_rgb_encode_callback(GB_gameboy_t *gb, GB_rgb_encode_callback_t callback);
+void GB_set_infrared_callback(GB_gameboy_t *gb, GB_infrared_callback_t callback);
+void GB_set_rumble_callback(GB_gameboy_t *gb, GB_rumble_callback_t callback);
+void GB_set_update_input_hint_callback(GB_gameboy_t *gb, GB_update_input_hint_callback_t callback);
+
+/* These APIs are used when using internal clock */
+void GB_set_serial_transfer_bit_start_callback(GB_gameboy_t *gb, GB_serial_transfer_bit_start_callback_t callback);
+void GB_set_serial_transfer_bit_end_callback(GB_gameboy_t *gb, GB_serial_transfer_bit_end_callback_t callback);
+
+/* These APIs are used when using external clock */
+bool GB_serial_get_data_bit(GB_gameboy_t *gb);
+void GB_serial_set_data_bit(GB_gameboy_t *gb, bool data);
+    
+void GB_disconnect_serial(GB_gameboy_t *gb);
+    
+/* For integration with SFC/SNES emulators */
+void GB_set_joyp_write_callback(GB_gameboy_t *gb, GB_joyp_write_callback_t callback);
+void GB_set_icd_pixel_callback(GB_gameboy_t *gb, GB_icd_pixel_callback_t callback);
+void GB_set_icd_hreset_callback(GB_gameboy_t *gb, GB_icd_hreset_callback_t callback);
+void GB_set_icd_vreset_callback(GB_gameboy_t *gb, GB_icd_vreset_callback_t callback);
+    
+#ifdef GB_INTERNAL
+uint32_t GB_get_clock_rate(GB_gameboy_t *gb);
+#endif
+void GB_set_clock_multiplier(GB_gameboy_t *gb, double multiplier);
+
+unsigned GB_get_screen_width(GB_gameboy_t *gb);
+unsigned GB_get_screen_height(GB_gameboy_t *gb);
+double GB_get_usual_frame_rate(GB_gameboy_t *gb);
+unsigned GB_get_player_count(GB_gameboy_t *gb);
+
+#endif /* GB_h */

bsnes/gb/Core/gb_struct_def.h

@@ -0,0 +1,5 @@
+#ifndef gb_struct_def_h
+#define gb_struct_def_h
+struct GB_gameboy_s;
+typedef struct GB_gameboy_s GB_gameboy_t;
+#endif 

bsnes/gb/Core/joypad.c

@@ -0,0 +1,92 @@
+#include "gb.h"
+#include <assert.h>
+
+void GB_update_joyp(GB_gameboy_t *gb)
+{
+    if (gb->model & GB_MODEL_NO_SFC_BIT) return;
+    
+    uint8_t key_selection = 0;
+    uint8_t previous_state = 0;
+
+    /* Todo: add delay to key selection */
+    previous_state = gb->io_registers[GB_IO_JOYP] & 0xF;
+    key_selection = (gb->io_registers[GB_IO_JOYP] >> 4) & 3;
+    gb->io_registers[GB_IO_JOYP] &= 0xF0;
+    uint8_t current_player = gb->sgb? (gb->sgb->current_player & (gb->sgb->player_count - 1) & 3) : 0;
+    switch (key_selection) {
+        case 3:
+            if (gb->sgb && gb->sgb->player_count > 1) {
+                gb->io_registers[GB_IO_JOYP] |= 0xF - current_player;
+            }
+            else {
+                /* Nothing is wired, all up */
+                gb->io_registers[GB_IO_JOYP] |= 0x0F;
+            }
+            break;
+
+        case 2:
+            /* Direction keys */
+            for (uint8_t i = 0; i < 4; i++) {
+                gb->io_registers[GB_IO_JOYP] |= (!gb->keys[current_player][i]) << i;
+            }
+            /* Forbid pressing two opposing keys, this breaks a lot of games; even if it's somewhat possible. */
+            if (!(gb->io_registers[GB_IO_JOYP] & 1)) {
+                gb->io_registers[GB_IO_JOYP] |= 2;
+            }
+            if (!(gb->io_registers[GB_IO_JOYP] & 4)) {
+                gb->io_registers[GB_IO_JOYP] |= 8;
+            }
+            break;
+
+        case 1:
+            /* Other keys */
+            for (uint8_t i = 0; i < 4; i++) {
+                gb->io_registers[GB_IO_JOYP] |= (!gb->keys[current_player][i + 4]) << i;
+            }
+            break;
+
+        case 0:
+            for (uint8_t i = 0; i < 4; i++) {
+                gb->io_registers[GB_IO_JOYP] |= (!(gb->keys[current_player][i] || gb->keys[current_player][i + 4])) << i;
+            }
+            break;
+
+        default:
+            break;
+    }
+    
+    /* Todo: This assumes the keys *always* bounce, which is incorrect when emulating an SGB */
+    if (previous_state != (gb->io_registers[GB_IO_JOYP] & 0xF)) {
+        /* The joypad interrupt DOES occur on CGB (Tested on CGB-E), unlike what some documents say. */
+        gb->io_registers[GB_IO_IF] |= 0x10;
+    }
+    
+    gb->io_registers[GB_IO_JOYP] |= 0xC0;
+}
+
+void GB_icd_set_joyp(GB_gameboy_t *gb, uint8_t value)
+{
+    uint8_t previous_state = gb->io_registers[GB_IO_JOYP] & 0xF;
+    gb->io_registers[GB_IO_JOYP] &= 0xF0;
+    gb->io_registers[GB_IO_JOYP] |= value & 0xF;
+    
+    if (previous_state & ~(gb->io_registers[GB_IO_JOYP] & 0xF)) {
+        gb->io_registers[GB_IO_IF] |= 0x10;
+    }
+    gb->io_registers[GB_IO_JOYP] |= 0xC0;
+}
+
+void GB_set_key_state(GB_gameboy_t *gb, GB_key_t index, bool pressed)
+{
+    assert(index >= 0 && index < GB_KEY_MAX);
+    gb->keys[0][index] = pressed;
+    GB_update_joyp(gb);
+}
+
+void GB_set_key_state_for_player(GB_gameboy_t *gb, GB_key_t index, unsigned player, bool pressed)
+{
+    assert(index >= 0 && index < GB_KEY_MAX);
+    assert(player < 4);
+    gb->keys[player][index] = pressed;
+    GB_update_joyp(gb);
+}

bsnes/gb/Core/joypad.h

@@ -0,0 +1,25 @@
+#ifndef joypad_h
+#define joypad_h
+#include "gb_struct_def.h"
+#include <stdbool.h>
+
+typedef enum {
+    GB_KEY_RIGHT,
+    GB_KEY_LEFT,
+    GB_KEY_UP,
+    GB_KEY_DOWN,
+    GB_KEY_A,
+    GB_KEY_B,
+    GB_KEY_SELECT,
+    GB_KEY_START,
+    GB_KEY_MAX
+} GB_key_t;
+
+void GB_set_key_state(GB_gameboy_t *gb, GB_key_t index, bool pressed);
+void GB_set_key_state_for_player(GB_gameboy_t *gb, GB_key_t index, unsigned player, bool pressed);
+void GB_icd_set_joyp(GB_gameboy_t *gb, uint8_t value);
+
+#ifdef GB_INTERNAL
+void GB_update_joyp(GB_gameboy_t *gb);
+#endif
+#endif /* joypad_h */

bsnes/gb/Core/mbc.c

@@ -0,0 +1,154 @@
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+#include "gb.h"
+
+const GB_cartridge_t GB_cart_defs[256] = {
+    // From http://gbdev.gg8.se/wiki/articles/The_Cartridge_Header#0147_-_Cartridge_Type
+    /* MBC        SUBTYPE          RAM    BAT.   RTC    RUMB.   */
+    {  GB_NO_MBC, GB_STANDARD_MBC, false, false, false, false}, // 00h  ROM ONLY
+    {  GB_MBC1  , GB_STANDARD_MBC, false, false, false, false}, // 01h  MBC1
+    {  GB_MBC1  , GB_STANDARD_MBC, true , false, false, false}, // 02h  MBC1+RAM
+    {  GB_MBC1  , GB_STANDARD_MBC, true , true , false, false}, // 03h  MBC1+RAM+BATTERY
+    [5] =
+    {  GB_MBC2  , GB_STANDARD_MBC, true , false, false, false}, // 05h  MBC2
+    {  GB_MBC2  , GB_STANDARD_MBC, true , true , false, false}, // 06h  MBC2+BATTERY
+    [8] =
+    {  GB_NO_MBC, GB_STANDARD_MBC, true , false, false, false}, // 08h  ROM+RAM
+    {  GB_NO_MBC, GB_STANDARD_MBC, true , true , false, false}, // 09h  ROM+RAM+BATTERY
+    [0xB] =
+    /* Todo: Not supported yet */
+    {  GB_NO_MBC, GB_STANDARD_MBC, false, false, false, false}, // 0Bh  MMM01
+    {  GB_NO_MBC, GB_STANDARD_MBC, false, false, false, false}, // 0Ch  MMM01+RAM
+    {  GB_NO_MBC, GB_STANDARD_MBC, false, false, false, false}, // 0Dh  MMM01+RAM+BATTERY
+    [0xF] =
+    {  GB_MBC3  , GB_STANDARD_MBC, false, true,  true , false}, // 0Fh  MBC3+TIMER+BATTERY
+    {  GB_MBC3  , GB_STANDARD_MBC, true , true,  true , false}, // 10h  MBC3+TIMER+RAM+BATTERY
+    {  GB_MBC3  , GB_STANDARD_MBC, false, false, false, false}, // 11h  MBC3
+    {  GB_MBC3  , GB_STANDARD_MBC, true , false, false, false}, // 12h  MBC3+RAM
+    {  GB_MBC3  , GB_STANDARD_MBC, true , true , false, false}, // 13h  MBC3+RAM+BATTERY
+    [0x19] =
+    {  GB_MBC5  , GB_STANDARD_MBC, false, false, false, false}, // 19h  MBC5
+    {  GB_MBC5  , GB_STANDARD_MBC, true , false, false, false}, // 1Ah  MBC5+RAM
+    {  GB_MBC5  , GB_STANDARD_MBC, true , true , false, false}, // 1Bh  MBC5+RAM+BATTERY
+    {  GB_MBC5  , GB_STANDARD_MBC, false, false, false, true }, // 1Ch  MBC5+RUMBLE
+    {  GB_MBC5  , GB_STANDARD_MBC, true , false, false, true }, // 1Dh  MBC5+RUMBLE+RAM
+    {  GB_MBC5  , GB_STANDARD_MBC, true , true , false, true }, // 1Eh  MBC5+RUMBLE+RAM+BATTERY
+    [0xFC] =
+    {  GB_MBC5  , GB_CAMERA      , true , true , false, false}, // FCh  POCKET CAMERA
+    {  GB_NO_MBC, GB_STANDARD_MBC, false, false, false, false}, // FDh  BANDAI TAMA5 (Todo: Not supported)
+    {  GB_HUC3  , GB_STANDARD_MBC, true , true , false, false}, // FEh  HuC3 (Todo: Mapper support only)
+    {  GB_HUC1  , GB_STANDARD_MBC, true , true , false, false}, // FFh  HuC1+RAM+BATTERY (Todo: No IR bindings)
+};
+
+void GB_update_mbc_mappings(GB_gameboy_t *gb)
+{
+    switch (gb->cartridge_type->mbc_type) {
+        case GB_NO_MBC: return;
+        case GB_MBC1:
+            switch (gb->mbc1_wiring) {
+                case GB_STANDARD_MBC1_WIRING:
+                    gb->mbc_rom_bank = gb->mbc1.bank_low | (gb->mbc1.bank_high << 5);
+                    if (gb->mbc1.mode == 0) {
+                        gb->mbc_ram_bank = 0;
+                        gb->mbc_rom0_bank = 0;
+                    }
+                    else {
+                        gb->mbc_ram_bank = gb->mbc1.bank_high;
+                        gb->mbc_rom0_bank = gb->mbc1.bank_high << 5;
+                    }
+                    if ((gb->mbc_rom_bank & 0x1F) == 0) {
+                        gb->mbc_rom_bank++;
+                    }
+                    break;
+                case GB_MBC1M_WIRING:
+                    gb->mbc_rom_bank = (gb->mbc1.bank_low & 0xF) | (gb->mbc1.bank_high << 4);
+                    if (gb->mbc1.mode == 0) {
+                        gb->mbc_ram_bank = 0;
+                        gb->mbc_rom0_bank = 0;
+                    }
+                    else {
+                        gb->mbc_rom0_bank = gb->mbc1.bank_high << 4;
+                        gb->mbc_ram_bank = 0;
+                    }
+                    if ((gb->mbc1.bank_low & 0x1F) == 0) {
+                        gb->mbc_rom_bank++;
+                    }
+                    break;
+            }
+            break;
+        case GB_MBC2:
+            gb->mbc_rom_bank = gb->mbc2.rom_bank;
+            if ((gb->mbc_rom_bank & 0xF) == 0) {
+                gb->mbc_rom_bank = 1;
+            }
+            break;
+        case GB_MBC3:
+            gb->mbc_rom_bank = gb->mbc3.rom_bank;
+            gb->mbc_ram_bank = gb->mbc3.ram_bank;
+            if (gb->mbc_rom_bank == 0) {
+                gb->mbc_rom_bank = 1;
+            }
+            break;
+        case GB_MBC5:
+            gb->mbc_rom_bank = gb->mbc5.rom_bank_low | (gb->mbc5.rom_bank_high << 8);
+            gb->mbc_ram_bank = gb->mbc5.ram_bank;
+            break;
+        case GB_HUC1:
+            if (gb->huc1.mode == 0) {
+                gb->mbc_rom_bank = gb->huc1.bank_low | (gb->mbc1.bank_high << 6);
+                gb->mbc_ram_bank = 0;
+            }
+            else {
+                gb->mbc_rom_bank = gb->huc1.bank_low;
+                gb->mbc_ram_bank = gb->huc1.bank_high;
+            }
+            break;
+        case GB_HUC3:
+            gb->mbc_rom_bank = gb->huc3.rom_bank;
+            gb->mbc_ram_bank = gb->huc3.ram_bank;
+            break;
+    }
+}
+
+void GB_configure_cart(GB_gameboy_t *gb)
+{
+    gb->cartridge_type = &GB_cart_defs[gb->rom[0x147]];
+    
+    if (gb->rom[0x147] == 0 && gb->rom_size > 0x8000) {
+        GB_log(gb, "ROM header reports no MBC, but file size is over 32Kb. Assuming cartridge uses MBC3.\n");
+        gb->cartridge_type = &GB_cart_defs[0x11];
+    }
+    else if (gb->rom[0x147] != 0 && memcmp(gb->cartridge_type, &GB_cart_defs[0], sizeof(GB_cart_defs[0])) == 0) {
+        GB_log(gb, "Cartridge type %02x is not yet supported.\n", gb->rom[0x147]);
+    }
+
+    if (gb->cartridge_type->has_ram) {
+        if (gb->cartridge_type->mbc_type == GB_MBC2) {
+            gb->mbc_ram_size = 0x200;
+        }
+        else {
+            static const int ram_sizes[256] = {0, 0x800, 0x2000, 0x8000, 0x20000, 0x10000};
+            gb->mbc_ram_size = ram_sizes[gb->rom[0x149]];
+        }
+        gb->mbc_ram = malloc(gb->mbc_ram_size);
+
+        /* Todo: Some games assume unintialized MBC RAM is 0xFF. It this true for all cartridges types? */
+        memset(gb->mbc_ram, 0xFF, gb->mbc_ram_size);
+    }
+
+    /* MBC1 has at least 3 types of wiring (We currently support two (Standard and 4bit-MBC1M) of these).
+       See http://forums.nesdev.com/viewtopic.php?f=20&t=14099 */
+
+    /* Attempt to "guess" wiring */
+    if (gb->cartridge_type->mbc_type == GB_MBC1) {
+        if (gb->rom_size >= 0x44000 && memcmp(gb->rom + 0x104, gb->rom + 0x40104, 0x30) == 0) {
+            gb->mbc1_wiring = GB_MBC1M_WIRING;
+        }
+    }
+    
+    /* Set MBC5's bank to 1 correctly */
+    if (gb->cartridge_type->mbc_type == GB_MBC5) {
+        gb->mbc5.rom_bank_low = 1;
+    }
+}

bsnes/gb/Core/mbc.h

@@ -0,0 +1,32 @@
+#ifndef MBC_h
+#define MBC_h
+#include "gb_struct_def.h"
+#include <stdbool.h>
+
+typedef struct {
+    enum {
+        GB_NO_MBC,
+        GB_MBC1,
+        GB_MBC2,
+        GB_MBC3,
+        GB_MBC5,
+        GB_HUC1, /* Todo: HUC1 features are not emulated. Should be unified with the CGB IR sensor API. */
+        GB_HUC3,
+    } mbc_type;
+    enum {
+        GB_STANDARD_MBC,
+        GB_CAMERA,
+    } mbc_subtype;
+    bool has_ram;
+    bool has_battery;
+    bool has_rtc;
+    bool has_rumble;
+} GB_cartridge_t;
+
+#ifdef GB_INTERNAL
+extern const GB_cartridge_t GB_cart_defs[256];
+void GB_update_mbc_mappings(GB_gameboy_t *gb);
+void GB_configure_cart(GB_gameboy_t *gb);
+#endif
+
+#endif /* MBC_h */

bsnes/gb/Core/memory.h

@@ -0,0 +1,18 @@
+#ifndef memory_h
+#define memory_h
+#include "gb_struct_def.h"
+#include <stdint.h>
+
+typedef uint8_t (*GB_read_memory_callback_t)(GB_gameboy_t *gb, uint16_t addr, uint8_t data);
+void GB_set_read_memory_callback(GB_gameboy_t *gb, GB_read_memory_callback_t callback);
+
+uint8_t GB_read_memory(GB_gameboy_t *gb, uint16_t addr);
+void GB_write_memory(GB_gameboy_t *gb, uint16_t addr, uint8_t value);
+#ifdef GB_INTERNAL
+void GB_dma_run(GB_gameboy_t *gb);
+void GB_hdma_run(GB_gameboy_t *gb);
+void GB_trigger_oam_bug(GB_gameboy_t *gb, uint16_t address);
+void GB_trigger_oam_bug_read_increase(GB_gameboy_t *gb, uint16_t address);
+#endif
+
+#endif /* memory_h */

bsnes/gb/Core/printer.c

@@ -0,0 +1,216 @@
+#include "gb.h"
+
+/* TODO: Emulation is VERY basic and assumes the ROM correctly uses the printer's interface.
+         Incorrect usage is not correctly emulated, as it's not well documented, nor do I
+         have my own GB Printer to figure it out myself.
+ 
+         It also does not currently emulate communication timeout, which means that a bug
+         might prevent the printer operation until the GameBoy is restarted.
+ 
+         Also, field mask values are assumed. */
+
+static void handle_command(GB_gameboy_t *gb)
+{
+    
+    switch (gb->printer.command_id) {
+        case GB_PRINTER_INIT_COMMAND:
+            gb->printer.status = 0;
+            gb->printer.image_offset = 0;
+            break;
+            
+        case GB_PRINTER_START_COMMAND:
+            if (gb->printer.command_length == 4) {
+                gb->printer.status = 6; /* Printing */
+                uint32_t image[gb->printer.image_offset];
+                uint8_t palette = gb->printer.command_data[2];
+                uint32_t colors[4] = {gb->rgb_encode_callback(gb, 0xff, 0xff, 0xff),
+                                      gb->rgb_encode_callback(gb, 0xaa, 0xaa, 0xaa),
+                                      gb->rgb_encode_callback(gb, 0x55, 0x55, 0x55),
+                                      gb->rgb_encode_callback(gb, 0x00, 0x00, 0x00)};
+                for (unsigned i = 0; i < gb->printer.image_offset; i++) {
+                    image[i] = colors[(palette >> (gb->printer.image[i] * 2)) & 3];
+                }
+                
+                if (gb->printer.callback) {
+                    gb->printer.callback(gb, image, gb->printer.image_offset / 160,
+                                         gb->printer.command_data[1] >> 4, gb->printer.command_data[1] & 7,
+                                         gb->printer.command_data[3] & 0x7F);
+                }
+                
+                gb->printer.image_offset = 0;
+            }
+            break;
+            
+        case GB_PRINTER_DATA_COMMAND:
+            if (gb->printer.command_length == GB_PRINTER_DATA_SIZE) {
+                gb->printer.image_offset %= sizeof(gb->printer.image);
+                gb->printer.status = 8; /* Received 0x280 bytes */
+                
+                uint8_t *byte = gb->printer.command_data;
+                
+                for (unsigned row = 2; row--; ) {
+                    for (unsigned tile_x = 0; tile_x < 160 / 8; tile_x++) {
+                        for (unsigned y = 0; y < 8; y++, byte += 2) {
+                            for (unsigned x_pixel = 0; x_pixel < 8; x_pixel++) {
+                                    gb->printer.image[gb->printer.image_offset + tile_x * 8 + x_pixel + y * 160] =
+                                        ((*byte) >> 7) | (((*(byte + 1)) >> 7) << 1);
+                                    (*byte) <<= 1;
+                                    (*(byte + 1)) <<= 1;
+                            }
+                        }
+                    }
+                    
+                    gb->printer.image_offset += 8 * 160;
+                }
+            }
+            
+        case GB_PRINTER_NOP_COMMAND:
+        default:
+            break;
+    }
+}
+
+
+static void byte_reieve_completed(GB_gameboy_t *gb, uint8_t byte_received)
+{
+    gb->printer.byte_to_send = 0;
+    switch (gb->printer.command_state) {
+        case GB_PRINTER_COMMAND_MAGIC1:
+            if (byte_received != 0x88) {
+                return;
+            }
+            gb->printer.status &= ~1;
+            gb->printer.command_length = 0;
+            gb->printer.checksum = 0;
+            break;
+            
+        case GB_PRINTER_COMMAND_MAGIC2:
+            if (byte_received != 0x33) {
+                if (byte_received != 0x88) {
+                    gb->printer.command_state = GB_PRINTER_COMMAND_MAGIC1;
+                }
+                return;
+            }
+            break;
+            
+        case GB_PRINTER_COMMAND_ID:
+            gb->printer.command_id = byte_received & 0xF;
+            break;
+            
+        case GB_PRINTER_COMMAND_COMPRESSION:
+            gb->printer.compression = byte_received & 1;
+            break;
+            
+        case GB_PRINTER_COMMAND_LENGTH_LOW:
+            gb->printer.length_left = byte_received;
+            break;
+            
+        case GB_PRINTER_COMMAND_LENGTH_HIGH:
+            gb->printer.length_left |= (byte_received & 3) << 8;
+            break;
+            
+        case GB_PRINTER_COMMAND_DATA:
+            if (gb->printer.command_length != GB_PRINTER_MAX_COMMAND_LENGTH) {
+                if (gb->printer.compression) {
+                    if (!gb->printer.compression_run_lenth) {
+                        gb->printer.compression_run_is_compressed = byte_received & 0x80;
+                        gb->printer.compression_run_lenth = (byte_received & 0x7F) + 1 + gb->printer.compression_run_is_compressed;
+                    }
+                    else if (gb->printer.compression_run_is_compressed) {
+                        while (gb->printer.compression_run_lenth) {
+                            gb->printer.command_data[gb->printer.command_length++] = byte_received;
+                            gb->printer.compression_run_lenth--;
+                            if (gb->printer.command_length == GB_PRINTER_MAX_COMMAND_LENGTH) {
+                                gb->printer.compression_run_lenth = 0;
+                            }
+                        }
+                    }
+                    else {
+                        gb->printer.command_data[gb->printer.command_length++] = byte_received;
+                        gb->printer.compression_run_lenth--;
+                    }
+                }
+                else {
+                    gb->printer.command_data[gb->printer.command_length++] = byte_received;
+                }
+            }
+            gb->printer.length_left--;
+            break;
+            
+        case GB_PRINTER_COMMAND_CHECKSUM_LOW:
+            gb->printer.checksum ^= byte_received;
+            break;
+            
+        case GB_PRINTER_COMMAND_CHECKSUM_HIGH:
+            gb->printer.checksum ^= byte_received << 8;
+            if (gb->printer.checksum) {
+                gb->printer.status |= 1; /* Checksum error*/
+                gb->printer.command_state = GB_PRINTER_COMMAND_MAGIC1;
+                return;
+            }
+            gb->printer.byte_to_send = 0x81;
+
+            break;
+        case GB_PRINTER_COMMAND_ACTIVE:
+            if ((gb->printer.command_id & 0xF) == GB_PRINTER_INIT_COMMAND) {
+                /* Games expect INIT commands to return 0? */
+                gb->printer.byte_to_send = 0;
+            }
+            else {
+                gb->printer.byte_to_send = gb->printer.status;
+            }
+            break;
+        case GB_PRINTER_COMMAND_STATUS:
+            
+            /* Printing is done instantly, but let the game recieve a 6 (Printing) status at least once, for compatibility */
+            if (gb->printer.status == 6) {
+               gb->printer.status = 4; /* Done */
+            }
+            
+            gb->printer.command_state = GB_PRINTER_COMMAND_MAGIC1;
+            handle_command(gb);
+            return;
+    }
+
+    if (gb->printer.command_state >= GB_PRINTER_COMMAND_ID && gb->printer.command_state < GB_PRINTER_COMMAND_CHECKSUM_LOW) {
+        gb->printer.checksum += byte_received;
+    }
+
+    if (gb->printer.command_state != GB_PRINTER_COMMAND_DATA) {
+        gb->printer.command_state++;
+    }
+
+    if (gb->printer.command_state == GB_PRINTER_COMMAND_DATA) {
+        if (gb->printer.length_left == 0) {
+            gb->printer.command_state++;
+        }
+    }
+}
+
+static void serial_start(GB_gameboy_t *gb, bool bit_received)
+{
+    gb->printer.byte_being_recieved <<= 1;
+    gb->printer.byte_being_recieved |= bit_received;
+    gb->printer.bits_recieved++;
+    if (gb->printer.bits_recieved == 8) {
+        byte_reieve_completed(gb, gb->printer.byte_being_recieved);
+        gb->printer.bits_recieved = 0;
+        gb->printer.byte_being_recieved = 0;
+    }
+}
+
+static bool serial_end(GB_gameboy_t *gb)
+{
+    bool ret = gb->printer.bit_to_send;
+    gb->printer.bit_to_send = gb->printer.byte_to_send & 0x80;
+    gb->printer.byte_to_send <<= 1;
+    return ret;
+}
+
+void GB_connect_printer(GB_gameboy_t *gb, GB_print_image_callback_t callback)
+{
+    memset(&gb->printer, 0, sizeof(gb->printer));
+    GB_set_serial_transfer_bit_start_callback(gb, serial_start);
+    GB_set_serial_transfer_bit_end_callback(gb, serial_end);
+    gb->printer.callback = callback;
+}

bsnes/gb/Core/printer.h

@@ -0,0 +1,63 @@
+#ifndef printer_h
+#define printer_h
+#include <stdint.h>
+#include <stdbool.h>
+#include "gb_struct_def.h"
+#define GB_PRINTER_MAX_COMMAND_LENGTH 0x280
+#define GB_PRINTER_DATA_SIZE 0x280
+
+typedef void (*GB_print_image_callback_t)(GB_gameboy_t *gb,
+                                          uint32_t *image,
+                                          uint8_t height,
+                                          uint8_t top_margin,
+                                          uint8_t bottom_margin,
+                                          uint8_t exposure);
+
+
+typedef struct
+{
+    /* Communication state machine */
+
+    enum {
+        GB_PRINTER_COMMAND_MAGIC1,
+        GB_PRINTER_COMMAND_MAGIC2,
+        GB_PRINTER_COMMAND_ID,
+        GB_PRINTER_COMMAND_COMPRESSION,
+        GB_PRINTER_COMMAND_LENGTH_LOW,
+        GB_PRINTER_COMMAND_LENGTH_HIGH,
+        GB_PRINTER_COMMAND_DATA,
+        GB_PRINTER_COMMAND_CHECKSUM_LOW,
+        GB_PRINTER_COMMAND_CHECKSUM_HIGH,
+        GB_PRINTER_COMMAND_ACTIVE,
+        GB_PRINTER_COMMAND_STATUS,
+    } command_state : 8;
+    enum {
+        GB_PRINTER_INIT_COMMAND = 1,
+        GB_PRINTER_START_COMMAND = 2,
+        GB_PRINTER_DATA_COMMAND = 4,
+        GB_PRINTER_NOP_COMMAND = 0xF,
+    } command_id : 8;
+    bool compression;
+    uint16_t length_left;
+    uint8_t command_data[GB_PRINTER_MAX_COMMAND_LENGTH];
+    uint16_t command_length;
+    uint16_t checksum;
+    uint8_t status;
+    uint8_t byte_to_send;
+    
+    uint8_t image[160 * 200];
+    uint16_t image_offset;
+    
+    GB_print_image_callback_t callback;
+    
+    uint8_t compression_run_lenth;
+    bool compression_run_is_compressed;
+    
+    uint8_t bits_recieved;
+    uint8_t byte_being_recieved;
+    bool bit_to_send;
+} GB_printer_t;
+
+
+void GB_connect_printer(GB_gameboy_t *gb, GB_print_image_callback_t callback);
+#endif

bsnes/gb/Core/random.c

@@ -0,0 +1,38 @@
+#include "random.h"
+#include <time.h>
+
+static uint64_t seed;
+static bool enabled = true;
+
+uint8_t GB_random(void)
+{
+    if (!enabled) return 0;
+    
+    seed *= 0x27BB2EE687B0B0FDL;
+    seed += 0xB504F32D;
+    return seed >> 56;
+}
+
+uint32_t GB_random32(void)
+{
+    GB_random();
+    return seed >> 32;
+}
+
+void GB_random_seed(uint64_t new_seed)
+{
+    seed = new_seed;
+}
+
+void GB_random_set_enabled(bool enable)
+{
+    enabled = enable;
+}
+
+static void __attribute__((constructor)) init_seed(void)
+{
+    seed = time(NULL);
+    for (unsigned i = 64; i--;) {
+        GB_random();
+    }
+}

bsnes/gb/Core/random.h

@@ -0,0 +1,12 @@
+#ifndef random_h
+#define random_h
+
+#include <stdint.h>
+#include <stdbool.h>
+
+uint8_t GB_random(void);
+uint32_t GB_random32(void);
+void GB_random_seed(uint64_t seed);
+void GB_random_set_enabled(bool enable);
+
+#endif /* random_h */