Update to snes-20100807 release.

This represents a major code restructuring. The dot-based and
scanline-based renderers are now split into two separate core
libraries, asnes and bsnes.

For now at least, these are -internal- names. I'm not entirely decided
on how I'm going to handle releasing these two separate builds.
Regardless, the folders need names.

asnes has had all of the processor subfolders collapsed back into
their parent folders. In other words, ppu's functions were moved into
ppu/sppu, and then ppu was deleted, and then ppu/sppu became the new
ppu. Repeat this for the cpu, smp and dsp and there you go.

asnes/dsp also removed the DSP_STATE_MACHINE option. This was done for
the sake of consistency with the rest of the core.

asnes' debugger mode is currently extremely broken, but I will be
fixing it in time.

And for now, bsnes has kept the processor abstraction layer. I may
keep it around, not sure yet. It doesn't hurt speed or anything, so
I'm not too worried about making a decision right away.

I may throw snesfilter, snesreader and supergameboy into this folder,
just to have everything in one place. The alternate GUI forks are
definitely going in there as dotnet, cocoa and python.

Compiled output goes to the out/ folder now, to prevent conflicts with
a file and folder named bsnes, for instance.

Makefile

@@ -0,0 +1,91 @@
+include nall/Makefile
+snes := asnes
+ui := qt
+
+# compiler
+c       := $(compiler) -std=gnu99
+cpp     := $(subst cc,++,$(compiler)) -std=gnu++0x
+flags   := -O3 -fomit-frame-pointer -I. -I$(snes)
+link    :=
+objects :=
+
+# profile-guided instrumentation
+# flags += -fprofile-generate
+# link += -lgcov
+
+# profile-guided optimization
+# flags += -fprofile-use
+
+# platform
+ifeq ($(platform),x)
+  link += -s -ldl -lX11 -lXext
+else ifeq ($(platform),osx)
+else ifeq ($(platform),win)
+  link += -mwindows
+# link += -mconsole
+  link += -mthreads -s -luuid -lkernel32 -luser32 -lgdi32 -lshell32
+  link += -enable-stdcall-fixup -Wl,-enable-auto-import -Wl,-enable-runtime-pseudo-reloc
+else
+  unknown_platform: help;
+endif
+
+# implicit rules
+compile = \
+  $(strip \
+    $(if $(filter %.c,$<), \
+      $(c) $(flags) $1 -c $< -o $@, \
+      $(if $(filter %.cpp,$<), \
+        $(cpp) $(flags) $1 -c $< -o $@ \
+      ) \
+    ) \
+  )
+
+%.o: $<; $(call compile)
+
+all: build;
+
+include $(snes)/Makefile
+include $(ui)/Makefile
+
+objects := $(patsubst %,obj/%.o,$(objects))
+
+# targets
+build: ui_build $(objects)
+ifeq ($(platform),osx)
+	test -d ../bsnes.app || mkdir -p ../bsnes.app/Contents/MacOS
+	$(strip $(cpp) -o ../bsnes.app/Contents/MacOS/bsnes $(objects) $(link))
+else
+	$(strip $(cpp) -o out/$(snes) $(objects) $(link))
+endif
+
+install:
+ifeq ($(platform),x)
+	install -D -m 755 ../bsnes $(DESTDIR)$(prefix)/bin/bsnes
+	install -D -m 644 data/bsnes.png $(DESTDIR)$(prefix)/share/pixmaps/bsnes.png
+	install -D -m 644 data/bsnes.desktop $(DESTDIR)$(prefix)/share/applications/bsnes.desktop
+endif
+
+uninstall:
+ifeq ($(platform),x)
+	rm $(DESTDIR)$(prefix)/bin/bsnes
+	rm $(DESTDIR)$(prefix)/share/pixmaps/bsnes.png
+	rm $(DESTDIR)$(prefix)/share/applications/bsnes.desktop
+endif
+
+clean: ui_clean
+	-@$(call delete,obj/*.o)
+	-@$(call delete,obj/*.a)
+	-@$(call delete,obj/*.so)
+	-@$(call delete,obj/*.dylib)
+	-@$(call delete,obj/*.dll)
+	-@$(call delete,*.res)
+	-@$(call delete,*.pgd)
+	-@$(call delete,*.pgc)
+	-@$(call delete,*.ilk)
+	-@$(call delete,*.pdb)
+	-@$(call delete,*.manifest)
+
+archive-all:
+	tar -cjf snes-`date +%Y%m%d`.tar.bz2 asnes bsnes libco nall obj out qt ruby Makefile sync.sh
+
+help:;

asnes/Makefile

@@ -0,0 +1,77 @@
+snes_objects := libco
+snes_objects += snes-system
+snes_objects += snes-cartridge snes-cheat
+snes_objects += snes-memory snes-cpucore snes-cpu snes-smpcore snes-smp snes-dsp snes-ppu
+snes_objects += snes-supergameboy snes-superfx snes-sa1
+snes_objects += snes-bsx snes-srtc snes-sdd1 snes-spc7110
+snes_objects += snes-cx4 snes-dsp1 snes-dsp2 snes-dsp3 snes-dsp4
+snes_objects += snes-obc1 snes-st0010 snes-st0011 snes-st0018
+snes_objects += snes-msu1 snes-serial
+objects += $(snes_objects)
+
+obj/libco.o  : libco/libco.c libco/*
+obj/libsnes.o: $(snes)/libsnes/libsnes.cpp $(snes)/libsnes/*
+
+obj/snes-system.o   : $(snes)/system/system.cpp $(call rwildcard,$(snes)/system/) $(call rwildcard,$(snes)/video/)
+obj/snes-memory.o   : $(snes)/memory/memory.cpp $(snes)/memory/*
+obj/snes-cpucore.o  : $(snes)/cpu/core/core.cpp $(call rwildcard,$(snes)/cpu/core/)
+obj/snes-cpu.o      : $(snes)/cpu/cpu.cpp $(snes)/cpu/*
+obj/snes-smpcore.o  : $(snes)/smp/core/core.cpp $(call rwildcard,$(snes)/smp/core/)
+obj/snes-smp.o      : $(snes)/smp/smp.cpp $(snes)/smp/*
+obj/snes-dsp.o      : $(snes)/dsp/dsp.cpp $(snes)/dsp/*
+obj/snes-ppu.o      : $(snes)/ppu/ppu.cpp $(snes)/ppu/*
+obj/snes-cartridge.o: $(snes)/cartridge/cartridge.cpp $(snes)/cartridge/*
+obj/snes-cheat.o    : $(snes)/cheat/cheat.cpp $(snes)/cheat/*
+
+obj/snes-supergameboy.o: $(snes)/chip/supergameboy/supergameboy.cpp $(call rwildcard,$(snes)/chip/supergameboy/)
+obj/snes-superfx.o     : $(snes)/chip/superfx/superfx.cpp $(call rwildcard,$(snes)/chip/superfx/)
+obj/snes-sa1.o         : $(snes)/chip/sa1/sa1.cpp $(call rwildcard,$(snes)/chip/sa1/)
+obj/snes-bsx.o         : $(snes)/chip/bsx/bsx.cpp $(snes)/chip/bsx/*
+obj/snes-srtc.o        : $(snes)/chip/srtc/srtc.cpp $(snes)/chip/srtc/*
+obj/snes-sdd1.o        : $(snes)/chip/sdd1/sdd1.cpp $(snes)/chip/sdd1/*
+obj/snes-spc7110.o     : $(snes)/chip/spc7110/spc7110.cpp $(snes)/chip/spc7110/*
+obj/snes-cx4.o         : $(snes)/chip/cx4/cx4.cpp $(snes)/chip/cx4/*
+obj/snes-dsp1.o        : $(snes)/chip/dsp1/dsp1.cpp $(snes)/chip/dsp1/*
+obj/snes-dsp2.o        : $(snes)/chip/dsp2/dsp2.cpp $(snes)/chip/dsp2/*
+obj/snes-dsp3.o        : $(snes)/chip/dsp3/dsp3.cpp $(snes)/chip/dsp3/*
+obj/snes-dsp4.o        : $(snes)/chip/dsp4/dsp4.cpp $(snes)/chip/dsp4/*
+obj/snes-obc1.o        : $(snes)/chip/obc1/obc1.cpp $(snes)/chip/obc1/*
+obj/snes-st0010.o      : $(snes)/chip/st0010/st0010.cpp $(snes)/chip/st0010/*
+obj/snes-st0011.o      : $(snes)/chip/st0011/st0011.cpp $(snes)/chip/st0011/*
+obj/snes-st0018.o      : $(snes)/chip/st0018/st0018.cpp $(snes)/chip/st0018/*
+obj/snes-msu1.o        : $(snes)/chip/msu1/msu1.cpp $(snes)/chip/msu1/*
+obj/snes-serial.o      : $(snes)/chip/serial/serial.cpp $(snes)/chip/serial/*
+
+###########
+# library #
+###########
+
+snes_objects := $(patsubst %,obj/%.o,$(snes_objects))
+
+library: $(snes_objects) obj/libsnes.o
+ifeq ($(platform),x)
+	ar rcs obj/libsnes.a $(snes_objects) obj/libsnes.o
+	$(cpp) -o obj/libsnes.so -shared -Wl,-soname,libsnes.so.1 $(snes_objects) obj/libsnes.o
+else ifeq ($(platform),osx)
+	ar rcs obj/libsnes.a $(snes_objects) obj/libsnes.o
+	$(cpp) -o obj/libsnes.dylib -install_name @executable_path/../Libraries/libsnes.dylib -shared -dynamiclib $(snes_objects) obj/libsnes.o
+else ifeq ($(platform),win)
+	$(cpp) -o obj/snes.dll -shared -Wl,--out-implib,libsnes.a $(snes_objects) obj/libsnes.o
+endif
+
+library-install:
+ifeq ($(platform),x)
+	install -D -m 755 obj/libsnes.a $(DESTDIR)$(prefix)/lib/libsnes.a
+	install -D -m 755 obj/libsnes.so $(DESTDIR)$(prefix)/lib/libsnes.so
+	ldconfig -n $(DESTDIR)$(prefix)/lib
+else ifeq ($(platform),osx)
+	cp obj/libsnes.dylib /usr/local/lib/libsnes.dylib
+endif
+
+library-uninstall:
+ifeq ($(platform),x)
+	rm $(DESTDIR)$(prefix)/lib/libsnes.a
+	rm $(DESTDIR)$(prefix)/lib/libsnes.so
+else ifeq ($(platform),osx)
+	rm /usr/local/lib/libsnes.dylib
+endif

asnes/audio/audio.cpp

@@ -0,0 +1,85 @@
+#ifdef SYSTEM_CPP
+
+Audio audio;
+
+void Audio::coprocessor_enable(bool state) {
+  coprocessor = state;
+
+  dsp_rdoffset = cop_rdoffset = 0;
+  dsp_wroffset = cop_wroffset = 0;
+  dsp_length = cop_length = 0;
+
+  r_sum_l = r_sum_r = 0;
+}
+
+void Audio::coprocessor_frequency(double input_frequency) {
+  double output_frequency;
+  output_frequency = system.apu_frequency() / 768.0;
+  r_step = input_frequency / output_frequency;
+  r_frac = 0;
+}
+
+void Audio::sample(int16 left, int16 right) {
+  if(coprocessor == false) {
+    system.interface->audio_sample(left, right);
+  } else {
+    dsp_buffer[dsp_wroffset] = ((uint16)left << 0) + ((uint16)right << 16);
+    dsp_wroffset = (dsp_wroffset + 1) & 32767;
+    dsp_length = (dsp_length + 1) & 32767;
+    flush();
+  }
+}
+
+void Audio::coprocessor_sample(int16 left, int16 right) {
+  if(r_frac >= 1.0) {
+    r_frac -= 1.0;
+    r_sum_l += left;
+    r_sum_r += right;
+    return;
+  }
+
+  r_sum_l += left  * r_frac;
+  r_sum_r += right * r_frac;
+
+  uint16 output_left  = sclamp<16>(int(r_sum_l / r_step));
+  uint16 output_right = sclamp<16>(int(r_sum_r / r_step));
+
+  double first = 1.0 - r_frac;
+  r_sum_l = left  * first;
+  r_sum_r = right * first;
+  r_frac = r_step - first;
+
+  cop_buffer[cop_wroffset] = (output_left << 0) + (output_right << 16);
+  cop_wroffset = (cop_wroffset + 1) & 32767;
+  cop_length = (cop_length + 1) & 32767;
+  flush();
+}
+
+void Audio::init() {
+}
+
+void Audio::flush() {
+  while(dsp_length > 0 && cop_length > 0) {
+    uint32 dsp_sample = dsp_buffer[dsp_rdoffset];
+    uint32 cop_sample = cop_buffer[cop_rdoffset];
+
+    dsp_rdoffset = (dsp_rdoffset + 1) & 32767;
+    cop_rdoffset = (cop_rdoffset + 1) & 32767;
+
+    dsp_length--;
+    cop_length--;
+
+    int dsp_left  = (int16)(dsp_sample >>  0);
+    int dsp_right = (int16)(dsp_sample >> 16);
+
+    int cop_left  = (int16)(cop_sample >>  0);
+    int cop_right = (int16)(cop_sample >> 16);
+
+    system.interface->audio_sample(
+      sclamp<16>((dsp_left  + cop_left ) / 2),
+      sclamp<16>((dsp_right + cop_right) / 2)
+    );
+  }
+}
+
+#endif

asnes/audio/audio.hpp

@@ -0,0 +1,22 @@
+class Audio {
+public:
+  void coprocessor_enable(bool state);
+  void coprocessor_frequency(double frequency);
+  void sample(int16 left, int16 right);
+  void coprocessor_sample(int16 left, int16 right);
+  void init();
+
+private:
+  bool coprocessor;
+  uint32 dsp_buffer[32768], cop_buffer[32768];
+  unsigned dsp_rdoffset, cop_rdoffset;
+  unsigned dsp_wroffset, cop_wroffset;
+  unsigned dsp_length, cop_length;
+
+  double r_step, r_frac;
+  int r_sum_l, r_sum_r;
+
+  void flush();
+};
+
+extern Audio audio;

asnes/cartridge/cartridge.cpp

@@ -0,0 +1,144 @@
+#include <snes.hpp>
+
+#include <nall/crc32.hpp>
+#include <nall/sha256.hpp>
+
+#define CARTRIDGE_CPP
+namespace SNES {
+
+#include "xml.cpp"
+#include "serialization.cpp"
+
+namespace memory {
+  MappedRAM cartrom, cartram, cartrtc;
+  MappedRAM bsxflash, bsxram, bsxpram;
+  MappedRAM stArom, stAram;
+  MappedRAM stBrom, stBram;
+  MappedRAM gbrom, gbram, gbrtc;
+};
+
+Cartridge cartridge;
+
+void Cartridge::load(Mode cartridge_mode, const lstring &xml_list) {
+  mode = cartridge_mode;
+  region = Region::NTSC;
+  ram_size = 0;
+  spc7110_data_rom_offset = 0x100000;
+  supergameboy_version = SuperGameBoyVersion::Version1;
+  supergameboy_ram_size = 0;
+  supergameboy_rtc_size = 0;
+  serial_baud_rate = 57600;
+
+  has_bsx_slot   = false;
+  has_superfx    = false;
+  has_sa1        = false;
+  has_srtc       = false;
+  has_sdd1       = false;
+  has_spc7110    = false;
+  has_spc7110rtc = false;
+  has_cx4        = false;
+  has_dsp1       = false;
+  has_dsp2       = false;
+  has_dsp3       = false;
+  has_dsp4       = false;
+  has_obc1       = false;
+  has_st0010     = false;
+  has_st0011     = false;
+  has_st0018     = false;
+  has_msu1       = false;
+  has_serial     = false;
+
+  parse_xml(xml_list);
+
+  if(ram_size > 0) {
+    memory::cartram.map(allocate<uint8_t>(ram_size, 0xff), ram_size);
+  }
+
+  if(has_srtc || has_spc7110rtc) {
+    memory::cartrtc.map(allocate<uint8_t>(20, 0xff), 20);
+  }
+
+  if(mode == Mode::Bsx) {
+    memory::bsxram.map (allocate<uint8_t>( 32 * 1024, 0xff),  32 * 1024);
+    memory::bsxpram.map(allocate<uint8_t>(512 * 1024, 0xff), 512 * 1024);
+  }
+
+  if(mode == Mode::SufamiTurbo) {
+    if(memory::stArom.data()) memory::stAram.map(allocate<uint8_t>(128 * 1024, 0xff), 128 * 1024);
+    if(memory::stBrom.data()) memory::stBram.map(allocate<uint8_t>(128 * 1024, 0xff), 128 * 1024);
+  }
+
+  if(mode == Mode::SuperGameBoy) {
+    if(memory::gbrom.data()) {
+      if(supergameboy_ram_size) memory::gbram.map(allocate<uint8_t>(supergameboy_ram_size, 0xff), supergameboy_ram_size);
+      if(supergameboy_rtc_size) memory::gbrtc.map(allocate<uint8_t>(supergameboy_rtc_size, 0x00), supergameboy_rtc_size);
+    }
+  }
+
+  memory::cartrom.write_protect(true);
+  memory::cartram.write_protect(false);
+  memory::cartrtc.write_protect(false);
+  memory::bsxflash.write_protect(true);
+  memory::bsxram.write_protect(false);
+  memory::bsxpram.write_protect(false);
+  memory::stArom.write_protect(true);
+  memory::stAram.write_protect(false);
+  memory::stBrom.write_protect(true);
+  memory::stBram.write_protect(false);
+  memory::gbrom.write_protect(true);
+  memory::gbram.write_protect(false);
+  memory::gbrtc.write_protect(false);
+
+  unsigned checksum = ~0;                                           foreach(n, memory::cartrom ) checksum = crc32_adjust(checksum, n);
+  if(memory::bsxflash.size() != 0 && memory::bsxflash.size() != ~0) foreach(n, memory::bsxflash) checksum = crc32_adjust(checksum, n);
+  if(memory::stArom.size()   != 0 && memory::stArom.size()   != ~0) foreach(n, memory::stArom  ) checksum = crc32_adjust(checksum, n);
+  if(memory::stBrom.size()   != 0 && memory::stBrom.size()   != ~0) foreach(n, memory::stBrom  ) checksum = crc32_adjust(checksum, n);
+  if(memory::gbrom.size()    != 0 && memory::gbrom.size()    != ~0) foreach(n, memory::gbrom   ) checksum = crc32_adjust(checksum, n);
+  crc32 = ~checksum;
+
+  sha256_ctx sha;
+  uint8_t shahash[32];
+  sha256_init(&sha);
+  sha256_chunk(&sha, memory::cartrom.data(), memory::cartrom.size());
+  sha256_final(&sha);
+  sha256_hash(&sha, shahash);
+
+  string hash;
+  foreach(n, shahash) hash << strhex<2>(n);
+  sha256 = hash;
+
+  bus.load_cart();
+  system.serialize_init();
+  loaded = true;
+}
+
+void Cartridge::unload() {
+  memory::cartrom.reset();
+  memory::cartram.reset();
+  memory::cartrtc.reset();
+  memory::bsxflash.reset();
+  memory::bsxram.reset();
+  memory::bsxpram.reset();
+  memory::stArom.reset();
+  memory::stAram.reset();
+  memory::stBrom.reset();
+  memory::stBram.reset();
+  memory::gbrom.reset();
+  memory::gbram.reset();
+  memory::gbrtc.reset();
+
+  if(loaded == false) return;
+  bus.unload_cart();
+  loaded = false;
+}
+
+Cartridge::Cartridge() {
+  loaded = false;
+  unload();
+}
+
+Cartridge::~Cartridge() {
+  unload();
+}
+
+}

asnes/cartridge/cartridge.hpp

@@ -0,0 +1,118 @@
+class Cartridge : property<Cartridge> {
+public:
+  enum class Mode : unsigned {
+    Normal,
+    BsxSlotted,
+    Bsx,
+    SufamiTurbo,
+    SuperGameBoy,
+  };
+
+  enum class Region : unsigned {
+    NTSC,
+    PAL,
+  };
+
+  enum class SuperGameBoyVersion : unsigned {
+    Version1,
+    Version2,
+  };
+
+  //assigned externally to point to file-system datafiles (msu1 and serial)
+  //example: "/path/to/filename.sfc" would set this to "/path/to/filename"
+  readwrite<string> basename;
+
+  readonly<bool> loaded;
+  readonly<unsigned> crc32;
+  readonly<string> sha256;
+
+  readonly<Mode> mode;
+  readonly<Region> region;
+  readonly<unsigned> ram_size;
+  readonly<unsigned> spc7110_data_rom_offset;
+  readonly<SuperGameBoyVersion> supergameboy_version;
+  readonly<unsigned> supergameboy_ram_size;
+  readonly<unsigned> supergameboy_rtc_size;
+  readonly<unsigned> serial_baud_rate;
+
+  readonly<bool> has_bsx_slot;
+  readonly<bool> has_superfx;
+  readonly<bool> has_sa1;
+  readonly<bool> has_srtc;
+  readonly<bool> has_sdd1;
+  readonly<bool> has_spc7110;
+  readonly<bool> has_spc7110rtc;
+  readonly<bool> has_cx4;
+  readonly<bool> has_dsp1;
+  readonly<bool> has_dsp2;
+  readonly<bool> has_dsp3;
+  readonly<bool> has_dsp4;
+  readonly<bool> has_obc1;
+  readonly<bool> has_st0010;
+  readonly<bool> has_st0011;
+  readonly<bool> has_st0018;
+  readonly<bool> has_msu1;
+  readonly<bool> has_serial;
+
+  struct Mapping {
+    Memory *memory;
+    MMIO *mmio;
+    Bus::MapMode mode;
+    unsigned banklo;
+    unsigned bankhi;
+    unsigned addrlo;
+    unsigned addrhi;
+    unsigned offset;
+    unsigned size;
+
+    Mapping();
+    Mapping(Memory&);
+    Mapping(MMIO&);
+  };
+  array<Mapping> mapping;
+
+  void load(Mode, const lstring&);
+  void unload();
+
+  void serialize(serializer&);
+  Cartridge();
+  ~Cartridge();
+
+private:
+  void parse_xml(const lstring&);
+  void parse_xml_cartridge(const char*);
+  void parse_xml_bsx(const char*);
+  void parse_xml_sufami_turbo(const char*, bool);
+  void parse_xml_gameboy(const char*);
+
+  void xml_parse_rom(xml_element&);
+  void xml_parse_ram(xml_element&);
+  void xml_parse_superfx(xml_element&);
+  void xml_parse_sa1(xml_element&);
+  void xml_parse_bsx(xml_element&);
+  void xml_parse_sufamiturbo(xml_element&);
+  void xml_parse_supergameboy(xml_element&);
+  void xml_parse_srtc(xml_element&);
+  void xml_parse_sdd1(xml_element&);
+  void xml_parse_spc7110(xml_element&);
+  void xml_parse_cx4(xml_element&);
+  void xml_parse_necdsp(xml_element&);
+  void xml_parse_obc1(xml_element&);
+  void xml_parse_setadsp(xml_element&);
+  void xml_parse_setarisc(xml_element&);
+  void xml_parse_msu1(xml_element&);
+  void xml_parse_serial(xml_element&);
+
+  void xml_parse_address(Mapping&, const string&);
+  void xml_parse_mode(Mapping&, const string&);
+};
+
+namespace memory {
+  extern MappedRAM cartrom, cartram, cartrtc;
+  extern MappedRAM bsxflash, bsxram, bsxpram;
+  extern MappedRAM stArom, stAram;
+  extern MappedRAM stBrom, stBram;
+  extern MappedRAM gbrom, gbram, gbrtc;
+};
+
+extern Cartridge cartridge;

asnes/cartridge/serialization.cpp

@@ -0,0 +1,37 @@
+#ifdef CARTRIDGE_CPP
+
+void Cartridge::serialize(serializer &s) {
+  if(memory::cartram.size() != 0 && memory::cartram.size() != ~0) {
+    s.array(memory::cartram.data(), memory::cartram.size());
+  }
+
+  if(memory::cartrtc.size() != 0 && memory::cartrtc.size() != ~0) {
+    s.array(memory::cartrtc.data(), memory::cartrtc.size());
+  }
+
+  if(memory::bsxram.size() != 0 && memory::bsxram.size() != ~0) {
+    s.array(memory::bsxram.data(), memory::bsxram.size());
+  }
+
+  if(memory::bsxpram.size() != 0 && memory::bsxpram.size() != ~0) {
+    s.array(memory::bsxpram.data(), memory::bsxpram.size());
+  }
+
+  if(memory::stAram.size() != 0 && memory::stAram.size() != ~0) {
+    s.array(memory::stAram.data(), memory::stAram.size());
+  }
+
+  if(memory::stBram.size() != 0 && memory::stBram.size() != ~0) {
+    s.array(memory::stBram.data(), memory::stBram.size());
+  }
+
+  if(memory::gbram.size() != 0 && memory::gbram.size() != ~0) {
+    s.array(memory::gbram.data(), memory::gbram.size());
+  }
+
+  if(memory::gbrtc.size() != 0 && memory::gbrtc.size() != ~0) {
+    s.array(memory::gbrtc.data(), memory::gbrtc.size());
+  }
+}
+
+#endif

asnes/cartridge/xml.cpp

@@ -0,0 +1,671 @@
+#ifdef CARTRIDGE_CPP
+
+void Cartridge::parse_xml(const lstring &list) {
+  mapping.reset();
+  parse_xml_cartridge(list[0]);
+
+  if(mode == Mode::BsxSlotted) {
+    parse_xml_bsx(list[1]);
+  } else if(mode == Mode::Bsx) {
+    parse_xml_bsx(list[1]);
+  } else if(mode == Mode::SufamiTurbo) {
+    parse_xml_sufami_turbo(list[1], 0);
+    parse_xml_sufami_turbo(list[2], 1);
+  } else if(mode == Mode::SuperGameBoy) {
+    parse_xml_gameboy(list[1]);
+  }
+}
+
+void Cartridge::parse_xml_cartridge(const char *data) {
+  xml_element document = xml_parse(data);
+  if(document.element.size() == 0) return;
+
+  foreach(head, document.element) {
+    if(head.name == "cartridge") {
+      foreach(attr, head.attribute) {
+        if(attr.name == "region") {
+          if(attr.content == "NTSC") region = Region::NTSC;
+          if(attr.content == "PAL") region = Region::PAL;
+        }
+      }
+
+      foreach(node, head.element) {
+        if(node.name == "rom") xml_parse_rom(node);
+        if(node.name == "ram") xml_parse_ram(node);
+        if(node.name == "superfx") xml_parse_superfx(node);
+        if(node.name == "sa1") xml_parse_sa1(node);
+        if(node.name == "bsx") xml_parse_bsx(node);
+        if(node.name == "sufamiturbo") xml_parse_sufamiturbo(node);
+        if(node.name == "supergameboy") xml_parse_supergameboy(node);
+        if(node.name == "srtc") xml_parse_srtc(node);
+        if(node.name == "sdd1") xml_parse_sdd1(node);
+        if(node.name == "spc7110") xml_parse_spc7110(node);
+        if(node.name == "cx4") xml_parse_cx4(node);
+        if(node.name == "necdsp") xml_parse_necdsp(node);
+        if(node.name == "obc1") xml_parse_obc1(node);
+        if(node.name == "setadsp") xml_parse_setadsp(node);
+        if(node.name == "setarisc") xml_parse_setarisc(node);
+        if(node.name == "msu1") xml_parse_msu1(node);
+        if(node.name == "serial") xml_parse_serial(node);
+      }
+    }
+  }
+}
+
+void Cartridge::parse_xml_bsx(const char *data) {
+}
+
+void Cartridge::parse_xml_sufami_turbo(const char *data, bool slot) {
+}
+
+void Cartridge::parse_xml_gameboy(const char *data) {
+  xml_element document = xml_parse(data);
+  if(document.element.size() == 0) return;
+
+  foreach(head, document.element) {
+    if(head.name == "cartridge") {
+      foreach(attr, head.attribute) {
+        if(attr.name == "rtc") {
+          supergameboy_rtc_size = (attr.content == "true") ? 4 : 0;
+        }
+      }
+
+      foreach(leaf, head.element) {
+        if(leaf.name == "ram") {
+          foreach(attr, leaf.attribute) {
+            if(attr.name == "size") {
+              supergameboy_ram_size = strhex(attr.content);
+            }
+          }
+        }
+      }
+    }
+  }
+}
+
+void Cartridge::xml_parse_rom(xml_element &root) {
+  foreach(leaf, root.element) {
+    if(leaf.name == "map") {
+      Mapping m(memory::cartrom);
+      foreach(attr, leaf.attribute) {
+        if(attr.name == "address") xml_parse_address(m, attr.content);
+        if(attr.name == "mode") xml_parse_mode(m, attr.content);
+        if(attr.name == "offset") m.offset = strhex(attr.content);
+        if(attr.name == "size") m.size = strhex(attr.content);
+      }
+      mapping.append(m);
+    }
+  }
+}
+
+void Cartridge::xml_parse_ram(xml_element &root) {
+  foreach(attr, root.attribute) {
+    if(attr.name == "size") ram_size = strhex(attr.content);
+  }
+
+  foreach(leaf, root.element) {
+    if(leaf.name == "map") {
+      Mapping m(memory::cartram);
+      foreach(attr, leaf.attribute) {
+        if(attr.name == "address") xml_parse_address(m, attr.content);
+        if(attr.name == "mode") xml_parse_mode(m, attr.content);
+        if(attr.name == "offset") m.offset = strhex(attr.content);
+        if(attr.name == "size") m.size = strhex(attr.content);
+      }
+      mapping.append(m);
+    }
+  }
+}
+
+void Cartridge::xml_parse_superfx(xml_element &root) {
+  has_superfx = true;
+
+  foreach(node, root.element) {
+    if(node.name == "rom") {
+      foreach(leaf, node.element) {
+        if(leaf.name == "map") {
+          Mapping m(memory::fxrom);
+          foreach(attr, leaf.attribute) {
+            if(attr.name == "address") xml_parse_address(m, attr.content);
+            if(attr.name == "mode") xml_parse_mode(m, attr.content);
+            if(attr.name == "offset") m.offset = strhex(attr.content);
+            if(attr.name == "size") m.size = strhex(attr.content);
+          }
+          mapping.append(m);
+        }
+      }
+    } else if(node.name == "ram") {
+      foreach(attr, node.attribute) {
+        if(attr.name == "size") ram_size = strhex(attr.content);
+      }
+
+      foreach(leaf, node.element) {
+        if(leaf.name == "map") {
+          Mapping m(memory::fxram);
+          foreach(attr, leaf.attribute) {
+            if(attr.name == "address") xml_parse_address(m, attr.content);
+            if(attr.name == "mode") xml_parse_mode(m, attr.content);
+            if(attr.name == "offset") m.offset = strhex(attr.content);
+            if(attr.name == "size") m.size = strhex(attr.content);
+          }
+          mapping.append(m);
+        }
+      }
+    } else if(node.name == "mmio") {
+      foreach(leaf, node.element) {
+        if(leaf.name == "map") {
+          Mapping m(superfx);
+          foreach(attr, leaf.attribute) {
+            if(attr.name == "address") xml_parse_address(m, attr.content);
+          }
+          mapping.append(m);
+        }
+      }
+    }
+  }
+}
+
+void Cartridge::xml_parse_sa1(xml_element &root) {
+  has_sa1 = true;
+
+  foreach(node, root.element) {
+    if(node.name == "rom") {
+      foreach(leaf, node.element) {
+        if(leaf.name == "map") {
+          Mapping m(memory::vsprom);
+          foreach(attr, leaf.attribute) {
+            if(attr.name == "address") xml_parse_address(m, attr.content);
+            if(attr.name == "mode") xml_parse_mode(m, attr.content);
+            if(attr.name == "offset") m.offset = strhex(attr.content);
+            if(attr.name == "size") m.size = strhex(attr.content);
+          }
+          mapping.append(m);
+        }
+      }
+    } else if(node.name == "iram") {
+      foreach(leaf, node.element) {
+        if(leaf.name == "map") {
+          Mapping m(memory::cpuiram);
+          foreach(attr, leaf.attribute) {
+            if(attr.name == "address") xml_parse_address(m, attr.content);
+            if(attr.name == "mode") xml_parse_mode(m, attr.content);
+            if(attr.name == "offset") m.offset = strhex(attr.content);
+            if(attr.name == "size") m.size = strhex(attr.content);
+          }
+          mapping.append(m);
+        }
+      }
+    } else if(node.name == "bwram") {
+      foreach(attr, node.attribute) {
+        if(attr.name == "size") ram_size = strhex(attr.content);
+      }
+
+      foreach(leaf, node.element) {
+        if(leaf.name == "map") {
+          Mapping m(memory::cc1bwram);
+          foreach(attr, leaf.attribute) {
+            if(attr.name == "address") xml_parse_address(m, attr.content);
+            if(attr.name == "mode") xml_parse_mode(m, attr.content);
+            if(attr.name == "offset") m.offset = strhex(attr.content);
+            if(attr.name == "size") m.size = strhex(attr.content);
+          }
+          mapping.append(m);
+        }
+      }
+    } else if(node.name == "mmio") {
+      foreach(leaf, node.element) {
+        if(leaf.name == "map") {
+          Mapping m(sa1);
+          foreach(attr, leaf.attribute) {
+            if(attr.name == "address") xml_parse_address(m, attr.content);
+          }
+          mapping.append(m);
+        }
+      }
+    }
+  }
+}
+
+void Cartridge::xml_parse_bsx(xml_element &root) {
+  if(mode != Mode::BsxSlotted && mode != Mode::Bsx) return;
+
+  foreach(node, root.element) {
+    if(node.name == "slot") {
+      foreach(leaf, node.element) {
+        if(leaf.name == "map") {
+          Mapping m(memory::bsxflash);
+          foreach(attr, leaf.attribute) {
+            if(attr.name == "address") xml_parse_address(m, attr.content);
+            if(attr.name == "mode") xml_parse_mode(m, attr.content);
+            if(attr.name == "offset") m.offset = strhex(attr.content);
+            if(attr.name == "size") m.size = strhex(attr.content);
+          }
+          mapping.append(m);
+        }
+      }
+    } else if(node.name == "mmio") {
+      foreach(leaf, node.element) {
+        if(leaf.name == "map") {
+          Mapping m(bsxcart);
+          foreach(attr, leaf.attribute) {
+            if(attr.name == "address") xml_parse_address(m, attr.content);
+          }
+          mapping.append(m);
+        }
+      }
+    }
+  }
+}
+
+void Cartridge::xml_parse_sufamiturbo(xml_element &root) {
+  if(mode != Mode::SufamiTurbo) return;
+
+  foreach(node, root.element) {
+    if(node.name == "slot") {
+      bool slotid = 0;
+      foreach(attr, node.attribute) {
+        if(attr.name == "id") {
+          if(attr.content == "A") slotid = 0;
+          if(attr.content == "B") slotid = 1;
+        }
+      }
+
+      foreach(slot, node.element) {
+        if(slot.name == "rom") {
+          foreach(leaf, slot.element) {
+            if(leaf.name == "map") {
+              Mapping m(slotid == 0 ? memory::stArom : memory::stBrom);
+              foreach(attr, leaf.attribute) {
+                if(attr.name == "address") xml_parse_address(m, attr.content);
+                if(attr.name == "mode") xml_parse_mode(m, attr.content);
+                if(attr.name == "offset") m.offset = strhex(attr.content);
+                if(attr.name == "size") m.size = strhex(attr.content);
+              }
+              if(m.memory->size() > 0) mapping.append(m);
+            }
+          }
+        } else if(slot.name == "ram") {
+          foreach(leaf, slot.element) {
+            if(leaf.name == "map") {
+              Mapping m(slotid == 0 ? memory::stAram : memory::stBram);
+              foreach(attr, leaf.attribute) {
+                if(attr.name == "address") xml_parse_address(m, attr.content);
+                if(attr.name == "mode") xml_parse_mode(m, attr.content);
+                if(attr.name == "offset") m.offset = strhex(attr.content);
+                if(attr.name == "size") m.size = strhex(attr.content);
+              }
+              if(m.memory->size() > 0) mapping.append(m);
+            }
+          }
+        }
+      }
+    }
+  }
+}
+
+void Cartridge::xml_parse_supergameboy(xml_element &root) {
+  if(mode != Mode::SuperGameBoy) return;
+
+  foreach(attr, root.attribute) {
+    if(attr.name == "revision") {
+      if(attr.content == "1") supergameboy_version = SuperGameBoyVersion::Version1;
+      if(attr.content == "2") supergameboy_version = SuperGameBoyVersion::Version2;
+    }
+  }
+
+  foreach(node, root.element) {
+    if(node.name == "mmio") {
+      foreach(leaf, node.element) {
+        if(leaf.name == "map") {
+          Mapping m((Memory&)supergameboy);
+          foreach(attr, leaf.attribute) {
+            if(attr.name == "address") xml_parse_address(m, attr.content);
+          }
+          mapping.append(m);
+        }
+      }
+    }
+  }
+}
+
+void Cartridge::xml_parse_srtc(xml_element &root) {
+  has_srtc = true;
+
+  foreach(node, root.element) {
+    if(node.name == "mmio") {
+      foreach(leaf, node.element) {
+        if(leaf.name == "map") {
+          Mapping m(srtc);
+          foreach(attr, leaf.attribute) {
+            if(attr.name == "address") xml_parse_address(m, attr.content);
+          }
+          mapping.append(m);
+        }
+      }
+    }
+  }
+}
+
+void Cartridge::xml_parse_sdd1(xml_element &root) {
+  has_sdd1 = true;
+
+  foreach(node, root.element) {
+    if(node.name == "mcu") {
+      foreach(leaf, node.element) {
+        if(leaf.name == "map") {
+          Mapping m((Memory&)sdd1);
+          foreach(attr, leaf.attribute) {
+            if(attr.name == "address") xml_parse_address(m, attr.content);
+          }
+          mapping.append(m);
+        }
+      }
+    } else if(node.name == "mmio") {
+      foreach(leaf, node.element) {
+        if(leaf.name == "map") {
+          Mapping m((MMIO&)sdd1);
+          foreach(attr, leaf.attribute) {
+            if(attr.name == "address") xml_parse_address(m, attr.content);
+          }
+          mapping.append(m);
+        }
+      }
+    }
+  }
+}
+
+void Cartridge::xml_parse_spc7110(xml_element &root) {
+  has_spc7110 = true;
+
+  foreach(node, root.element) {
+    if(node.name == "dcu") {
+      foreach(leaf, node.element) {
+        if(leaf.name == "map") {
+          Mapping m(spc7110dcu);
+          foreach(attr, leaf.attribute) {
+            if(attr.name == "address") xml_parse_address(m, attr.content);
+          }
+          mapping.append(m);
+        }
+      }
+    } else if(node.name == "mcu") {
+      foreach(leaf, node.element) {
+        if(leaf.name == "map") {
+          Mapping m(spc7110mcu);
+          foreach(attr, leaf.attribute) {
+            if(attr.name == "address") xml_parse_address(m, attr.content);
+            if(attr.name == "offset") spc7110_data_rom_offset = strhex(attr.content);
+          }
+          mapping.append(m);
+        }
+      }
+    } else if(node.name == "mmio") {
+      foreach(leaf, node.element) {
+        if(leaf.name == "map") {
+          Mapping m(spc7110);
+          foreach(attr, leaf.attribute) {
+            if(attr.name == "address") xml_parse_address(m, attr.content);
+          }
+          mapping.append(m);
+        }
+      }
+    } else if(node.name == "ram") {
+      foreach(attr, node.attribute) {
+        if(attr.name == "size") ram_size = strhex(attr.content);
+      }
+
+      foreach(leaf, node.element) {
+        if(leaf.name == "map") {
+          Mapping m(spc7110ram);
+          foreach(attr, leaf.attribute) {
+            if(attr.name == "address") xml_parse_address(m, attr.content);
+            if(attr.name == "mode") xml_parse_mode(m, attr.content);
+            if(attr.name == "offset") m.offset = strhex(attr.content);
+            if(attr.name == "size") m.size = strhex(attr.content);
+          }
+          mapping.append(m);
+        }
+      }
+    } else if(node.name == "rtc") {
+      has_spc7110rtc = true;
+
+      foreach(leaf, node.element) {
+        if(leaf.name == "map") {
+          Mapping m(spc7110);
+          foreach(attr, leaf.attribute) {
+            if(attr.name == "address") xml_parse_address(m, attr.content);
+          }
+          mapping.append(m);
+        }
+      }
+    }
+  }
+}
+
+void Cartridge::xml_parse_cx4(xml_element &root) {
+  has_cx4 = true;
+
+  foreach(node, root.element) {
+    if(node.name == "mmio") {
+      foreach(leaf, node.element) {
+        if(leaf.name == "map") {
+          Mapping m(cx4);
+          foreach(attr, leaf.attribute) {
+            if(attr.name == "address") xml_parse_address(m, attr.content);
+          }
+          mapping.append(m);
+        }
+      }
+    }
+  }
+}
+
+void Cartridge::xml_parse_necdsp(xml_element &root) {
+  unsigned program = 0;
+
+  foreach(attr, root.attribute) {
+    if(attr.name == "program") {
+      if(attr.content == "DSP-1" || attr.content == "DSP-1A" || attr.content == "DSP-1B") {
+        program = 1;
+        has_dsp1 = true;
+      } else if(attr.content == "DSP-2") {
+        program = 2;
+        has_dsp2 = true;
+      } else if(attr.content == "DSP-3") {
+        program = 3;
+        has_dsp3 = true;
+      } else if(attr.content == "DSP-4") {
+        program = 4;
+        has_dsp4 = true;
+      }
+    }
+  }
+
+  Memory *dr[5] = { 0, &dsp1dr, &dsp2dr, &dsp3, &dsp4 };
+  Memory *sr[5] = { 0, &dsp1sr, &dsp2sr, &dsp3, &dsp4 };
+
+  foreach(node, root.element) {
+    if(node.name == "dr" && dr[program]) {
+      foreach(leaf, node.element) {
+        if(leaf.name == "map") {
+          Mapping m(*dr[program]);
+          foreach(attr, leaf.attribute) {
+            if(attr.name == "address") xml_parse_address(m, attr.content);
+          }
+          mapping.append(m);
+        }
+      }
+    } else if(node.name == "sr" && sr[program]) {
+      foreach(leaf, node.element) {
+        if(leaf.name == "map") {
+          Mapping m(*sr[program]);
+          foreach(attr, leaf.attribute) {
+            if(attr.name == "address") xml_parse_address(m, attr.content);
+          }
+          mapping.append(m);
+        }
+      }
+    }
+  }
+}
+
+void Cartridge::xml_parse_obc1(xml_element &root) {
+  has_obc1 = true;
+
+  foreach(node, root.element) {
+    if(node.name == "mmio") {
+      foreach(leaf, node.element) {
+        if(leaf.name == "map") {
+          Mapping m(obc1);
+          foreach(attr, leaf.attribute) {
+            if(attr.name == "address") xml_parse_address(m, attr.content);
+          }
+          mapping.append(m);
+        }
+      }
+    }
+  }
+}
+
+void Cartridge::xml_parse_setadsp(xml_element &root) {
+  unsigned program = 0;
+
+  foreach(attr, root.attribute) {
+    if(attr.name == "program") {
+      if(attr.content == "ST-0010") {
+        program = 1;
+        has_st0010 = true;
+      } else if(attr.content == "ST-0011") {
+        program = 2;
+        has_st0011 = true;
+      }
+    }
+  }
+
+  Memory *map[3] = { 0, &st0010, 0 };
+
+  foreach(node, root.element) {
+    if(node.name == "mmio" && map[program]) {
+      foreach(leaf, node.element) {
+        if(leaf.name == "map") {
+          Mapping m(*map[program]);
+          foreach(attr, leaf.attribute) {
+            if(attr.name == "address") xml_parse_address(m, attr.content);
+          }
+          mapping.append(m);
+        }
+      }
+    }
+  }
+}
+
+void Cartridge::xml_parse_setarisc(xml_element &root) {
+  unsigned program = 0;
+
+  foreach(attr, root.attribute) {
+    if(attr.name == "program") {
+      if(attr.content == "ST-0018") {
+        program = 1;
+        has_st0018 = true;
+      }
+    }
+  }
+
+  MMIO *map[2] = { 0, &st0018 };
+
+  foreach(node, root.element) {
+    if(node.name == "mmio" && map[program]) {
+      foreach(leaf, node.element) {
+        if(leaf.name == "map") {
+          Mapping m(*map[program]);
+          foreach(attr, leaf.attribute) {
+            if(attr.name == "address") xml_parse_address(m, attr.content);
+          }
+          mapping.append(m);
+        }
+      }
+    }
+  }
+}
+
+void Cartridge::xml_parse_msu1(xml_element &root) {
+  has_msu1 = true;
+
+  foreach(node, root.element) {
+    if(node.name == "mmio") {
+      foreach(leaf, node.element) {
+        if(leaf.name == "map") {
+          Mapping m(msu1);
+          foreach(attr, leaf.attribute) {
+            if(attr.name == "address") xml_parse_address(m, attr.content);
+          }
+          mapping.append(m);
+        }
+      }
+    }
+  }
+}
+
+void Cartridge::xml_parse_serial(xml_element &root) {
+  has_serial = true;
+
+  foreach(attr, root.attribute) {
+    if(attr.name == "baud") {
+      serial_baud_rate = strunsigned(attr.content);
+    }
+  }
+}
+
+void Cartridge::xml_parse_address(Mapping &m, const string &data) {
+  lstring part;
+  part.split(":", data);
+  if(part.size() != 2) return;
+
+  lstring subpart;
+  subpart.split("-", part[0]);
+  if(subpart.size() == 1) {
+    m.banklo = strhex(subpart[0]);
+    m.bankhi = m.banklo;
+  } else if(subpart.size() == 2) {
+    m.banklo = strhex(subpart[0]);
+    m.bankhi = strhex(subpart[1]);
+  }
+
+  subpart.split("-", part[1]);
+  if(subpart.size() == 1) {
+    m.addrlo = strhex(subpart[0]);
+    m.addrhi = m.addrlo;
+  } else if(subpart.size() == 2) {
+    m.addrlo = strhex(subpart[0]);
+    m.addrhi = strhex(subpart[1]);
+  }
+}
+
+void Cartridge::xml_parse_mode(Mapping &m, const string& data) {
+       if(data == "direct") m.mode = Bus::MapMode::Direct;
+  else if(data == "linear") m.mode = Bus::MapMode::Linear;
+  else if(data == "shadow") m.mode = Bus::MapMode::Shadow;
+}
+
+Cartridge::Mapping::Mapping() {
+  memory = 0;
+  mmio = 0;
+  mode = Bus::MapMode::Direct;
+  banklo = bankhi = addrlo = addrhi = offset = size = 0;
+}
+
+Cartridge::Mapping::Mapping(Memory &memory_) {
+  memory = &memory_;
+  mmio = 0;
+  mode = Bus::MapMode::Direct;
+  banklo = bankhi = addrlo = addrhi = offset = size = 0;
+}
+
+Cartridge::Mapping::Mapping(MMIO &mmio_) {
+  memory = 0;
+  mmio = &mmio_;
+  mode = Bus::MapMode::Direct;
+  banklo = bankhi = addrlo = addrhi = offset = size = 0;
+}
+
+#endif

asnes/cheat/cheat-inline.hpp

@@ -0,0 +1,2 @@
+bool Cheat::active() const { return cheat_enabled; }
+bool Cheat::exists(unsigned addr) const { return bitmask[addr >> 3] & 1 << (addr & 7); }

asnes/cheat/cheat.cpp

@@ -0,0 +1,194 @@
+#include <snes.hpp>
+
+#define CHEAT_CPP
+namespace SNES {
+
+Cheat cheat;
+
+bool Cheat::enabled() const {
+  return system_enabled;
+}
+
+void Cheat::enable(bool state) {
+  system_enabled = state;
+  cheat_enabled = system_enabled && code_enabled;
+}
+
+void Cheat::synchronize() {
+  memset(bitmask, 0x00, sizeof bitmask);
+  code_enabled = false;
+
+  for(unsigned i = 0; i < size(); i++) {
+    const CheatCode &code = operator[](i);
+    if(code.enabled == false) continue;
+
+    for(unsigned n = 0; n < code.addr.size(); n++) {
+      code_enabled = true;
+
+      unsigned addr = mirror(code.addr[n]);
+      bitmask[addr >> 3] |= 1 << (addr & 7);
+      if((addr & 0xffe000) == 0x7e0000) {
+        //mirror $7e:0000-1fff to $00-3f|80-bf:0000-1fff
+        unsigned mirroraddr;
+        for(unsigned x = 0; x <= 0x3f; x++) {
+          mirroraddr = ((0x00 + x) << 16) + (addr & 0x1fff);
+          bitmask[mirroraddr >> 3] |= 1 << (mirroraddr & 7);
+
+          mirroraddr = ((0x80 + x) << 16) + (addr & 0x1fff);
+          bitmask[mirroraddr >> 3] |= 1 << (mirroraddr & 7);
+        }
+      }
+    }
+  }
+
+  cheat_enabled = system_enabled && code_enabled;
+}
+
+bool Cheat::read(unsigned addr, uint8 &data) const {
+  addr = mirror(addr);
+
+  for(unsigned i = 0; i < size(); i++) {
+    const CheatCode &code = operator[](i);
+    if(code.enabled == false) continue;
+
+    for(unsigned n = 0; n < code.addr.size(); n++) {
+      if(addr == mirror(code.addr[n])) {
+        data = code.data[n];
+        return true;
+      }
+    }
+  }
+
+  return false;
+}
+
+Cheat::Cheat() {
+  system_enabled = true;
+  synchronize();
+}
+
+//===============
+//encode / decode
+//===============
+
+bool Cheat::decode(const char *s, unsigned &addr, uint8 &data, Type &type) {
+  string t = s;
+  t.lower();
+
+  #define ischr(n) ((n >= '0' && n <= '9') || (n >= 'a' && n <= 'f'))
+
+  if(strlen(t) == 8 || (strlen(t) == 9 && t[6] == ':')) {
+    //strip ':'
+    if(strlen(t) == 9 && t[6] == ':') t = string() << substr(t, 0, 6) << substr(t, 7);
+    //validate input
+    for(unsigned i = 0; i < 8; i++) if(!ischr(t[i])) return false;
+
+    type = Type::ProActionReplay;
+    unsigned r = strhex((const char*)t);
+    addr = r >> 8;
+    data = r & 0xff;
+    return true;
+  } else if(strlen(t) == 9 && t[4] == '-') {
+    //strip '-'
+    t = string() << substr(t, 0, 4) << substr(t, 5);
+    //validate input
+    for(unsigned i = 0; i < 8; i++) if(!ischr(t[i])) return false;
+
+    type = Type::GameGenie;
+    t.transform("df4709156bc8a23e", "0123456789abcdef");
+    unsigned r = strhex((const char*)t);
+    //8421 8421 8421 8421 8421 8421
+    //abcd efgh ijkl mnop qrst uvwx
+    //ijkl qrst opab cduv wxef ghmn
+    addr = (!!(r & 0x002000) << 23) | (!!(r & 0x001000) << 22)
+         | (!!(r & 0x000800) << 21) | (!!(r & 0x000400) << 20)
+         | (!!(r & 0x000020) << 19) | (!!(r & 0x000010) << 18)
+         | (!!(r & 0x000008) << 17) | (!!(r & 0x000004) << 16)
+         | (!!(r & 0x800000) << 15) | (!!(r & 0x400000) << 14)
+         | (!!(r & 0x200000) << 13) | (!!(r & 0x100000) << 12)
+         | (!!(r & 0x000002) << 11) | (!!(r & 0x000001) << 10)
+         | (!!(r & 0x008000) <<  9) | (!!(r & 0x004000) <<  8)
+         | (!!(r & 0x080000) <<  7) | (!!(r & 0x040000) <<  6)
+         | (!!(r & 0x020000) <<  5) | (!!(r & 0x010000) <<  4)
+         | (!!(r & 0x000200) <<  3) | (!!(r & 0x000100) <<  2)
+         | (!!(r & 0x000080) <<  1) | (!!(r & 0x000040) <<  0);
+    data = r >> 24;
+    return true;
+  } else {
+    return false;
+  }
+
+  #undef ischr
+}
+
+bool Cheat::encode(string &s, unsigned addr, uint8 data, Type type) {
+  char t[16];
+
+  if(type == Type::ProActionReplay) {
+    s = string(strhex<6>(addr), strhex<2>(data));
+    return true;
+  } else if(type == Type::GameGenie) {
+    unsigned r = addr;
+    addr = (!!(r & 0x008000) << 23) | (!!(r & 0x004000) << 22)
+         | (!!(r & 0x002000) << 21) | (!!(r & 0x001000) << 20)
+         | (!!(r & 0x000080) << 19) | (!!(r & 0x000040) << 18)
+         | (!!(r & 0x000020) << 17) | (!!(r & 0x000010) << 16)
+         | (!!(r & 0x000200) << 15) | (!!(r & 0x000100) << 14)
+         | (!!(r & 0x800000) << 13) | (!!(r & 0x400000) << 12)
+         | (!!(r & 0x200000) << 11) | (!!(r & 0x100000) << 10)
+         | (!!(r & 0x000008) <<  9) | (!!(r & 0x000004) <<  8)
+         | (!!(r & 0x000002) <<  7) | (!!(r & 0x000001) <<  6)
+         | (!!(r & 0x080000) <<  5) | (!!(r & 0x040000) <<  4)
+         | (!!(r & 0x020000) <<  3) | (!!(r & 0x010000) <<  2)
+         | (!!(r & 0x000800) <<  1) | (!!(r & 0x000400) <<  0);
+    s = string(strhex<2>(data), strhex<2>(addr >> 16), "-", strhex<4>(addr & 0xffff));
+    s.transform("0123456789abcdef", "df4709156bc8a23e");
+    return true;
+  } else {
+    return false;
+  }
+}
+
+//========
+//internal
+//========
+
+unsigned Cheat::mirror(unsigned addr) const {
+  //$00-3f|80-bf:0000-1fff -> $7e:0000-1fff
+  if((addr & 0x40e000) == 0x000000) return (0x7e0000 + (addr & 0x1fff));  
+  return addr;
+}
+
+//=========
+//CheatCode
+//=========
+
+bool CheatCode::operator=(string s) {
+  addr.reset();
+  data.reset();
+
+  lstring list;
+  list.split("+", s.replace(" ", ""));
+
+  for(unsigned i = 0; i < list.size(); i++) {
+    unsigned addr_;
+    uint8 data_;
+    Cheat::Type type_;
+    if(Cheat::decode(list[i], addr_, data_, type_) == false) {
+      addr.reset();
+      data.reset();
+      return false;
+    }
+
+    addr.append(addr_);
+    data.append(data_);
+  }
+
+  return true;
+}
+
+CheatCode::CheatCode() {
+  enabled = false;
+}
+
+}

asnes/cheat/cheat.hpp

@@ -0,0 +1,35 @@
+struct CheatCode {
+  bool enabled;
+  array<unsigned> addr;
+  array<uint8> data;
+
+  bool operator=(string);
+  CheatCode();
+};
+
+class Cheat : public linear_vector<CheatCode> {
+public:
+  enum class Type : unsigned { ProActionReplay, GameGenie };
+
+  bool enabled() const;
+  void enable(bool);
+  void synchronize();
+  bool read(unsigned, uint8&) const;
+
+  inline bool active() const;
+  inline bool exists(unsigned addr) const;
+
+  Cheat();
+
+  static bool decode(const char*, unsigned&, uint8&, Type&);
+  static bool encode(string&, unsigned, uint8, Type);
+
+private:
+  uint8 bitmask[0x200000];
+  bool system_enabled;
+  bool code_enabled;
+  bool cheat_enabled;
+  unsigned mirror(unsigned) const;
+};
+
+extern Cheat cheat;

asnes/chip/bsx/bsx.cpp

@@ -0,0 +1,8 @@
+#include <snes.hpp>
+
+#define BSX_CPP
+namespace SNES {
+  #include "bsx_base.cpp"
+  #include "bsx_cart.cpp"
+  #include "bsx_flash.cpp"
+}

asnes/chip/bsx/bsx.hpp

@@ -32,16 +32,10 @@ public:
   uint8 mmio_read(unsigned addr);
   void mmio_write(unsigned addr, uint8 data);
 
-  MappedRAM sram;
-  MappedRAM psram;
-
   BSXCart();
   ~BSXCart();
 
 private:
-  uint8 *sram_data;  //256kbit SRAM
-  uint8 *psram_data; //  4mbit PSRAM
-
   struct {
     uint8 r[16];
   } regs;

asnes/chip/bsx/bsx_base.cpp

@@ -1,5 +1,7 @@
 #ifdef BSX_CPP
 
+BSXBase bsxbase;
+
 void BSXBase::init() {
 }
 
@@ -135,3 +137,4 @@ void BSXBase::mmio_write(unsigned addr, uint8 data) {
 }
 
 #endif
+

asnes/chip/bsx/bsx_cart.cpp

@@ -0,0 +1,96 @@
+#ifdef BSX_CPP
+
+BSXCart bsxcart;
+
+void BSXCart::init() {
+}
+
+void BSXCart::enable() {
+}
+
+void BSXCart::power() {
+  reset();
+}
+
+void BSXCart::reset() {
+  for(unsigned i = 0; i < 16; i++) regs.r[i] = 0x00;
+  regs.r[0x07] = 0x80;
+  regs.r[0x08] = 0x80;
+
+  update_memory_map();
+}
+
+void BSXCart::update_memory_map() {
+  Memory &cart = (regs.r[0x01] & 0x80) == 0x00 ? (Memory&)bsxflash : (Memory&)memory::bsxpram;
+
+  if((regs.r[0x02] & 0x80) == 0x00) {
+    //LoROM mapping
+    bus.map(Bus::MapMode::Linear, 0x00, 0x7d, 0x8000, 0xffff, cart);
+    bus.map(Bus::MapMode::Linear, 0x80, 0xff, 0x8000, 0xffff, cart);
+  } else {
+    //HiROM mapping
+    bus.map(Bus::MapMode::Shadow, 0x00, 0x3f, 0x8000, 0xffff, cart);
+    bus.map(Bus::MapMode::Linear, 0x40, 0x7d, 0x0000, 0xffff, cart);
+    bus.map(Bus::MapMode::Shadow, 0x80, 0xbf, 0x8000, 0xffff, cart);
+    bus.map(Bus::MapMode::Linear, 0xc0, 0xff, 0x0000, 0xffff, cart);
+  }
+
+  if(regs.r[0x03] & 0x80) {
+    bus.map(Bus::MapMode::Linear, 0x60, 0x6f, 0x0000, 0xffff, memory::bsxpram);
+  //bus.map(Bus::MapMode::Linear, 0x70, 0x77, 0x0000, 0xffff, memory::bsxpram);
+  }
+
+  if((regs.r[0x05] & 0x80) == 0x00) {
+    bus.map(Bus::MapMode::Linear, 0x40, 0x4f, 0x0000, 0xffff, memory::bsxpram);
+  }
+
+  if((regs.r[0x06] & 0x80) == 0x00) {
+    bus.map(Bus::MapMode::Linear, 0x50, 0x5f, 0x0000, 0xffff, memory::bsxpram);
+  }
+
+  if(regs.r[0x07] & 0x80) {
+    bus.map(Bus::MapMode::Linear, 0x00, 0x1f, 0x8000, 0xffff, memory::cartrom);
+  }
+
+  if(regs.r[0x08] & 0x80) {
+    bus.map(Bus::MapMode::Linear, 0x80, 0x9f, 0x8000, 0xffff, memory::cartrom);
+  }
+
+  bus.map(Bus::MapMode::Shadow, 0x20, 0x3f, 0x6000, 0x7fff, memory::bsxpram);
+  bus.map(Bus::MapMode::Linear, 0x70, 0x77, 0x0000, 0xffff, memory::bsxpram);
+}
+
+uint8 BSXCart::mmio_read(unsigned addr) {
+  if((addr & 0xf0ffff) == 0x005000) {  //$[00-0f]:5000 MMIO
+    uint8 n = (addr >> 16) & 15;
+    return regs.r[n];
+  }
+
+  if((addr & 0xf8f000) == 0x105000) {  //$[10-17]:[5000-5fff] SRAM
+    return memory::bsxram.read(((addr >> 16) & 7) * 0x1000 + (addr & 0xfff));
+  }
+
+  return 0x00;
+}
+
+void BSXCart::mmio_write(unsigned addr, uint8 data) {
+  if((addr & 0xf0ffff) == 0x005000) {  //$[00-0f]:5000 MMIO
+    uint8 n = (addr >> 16) & 15;
+    regs.r[n] = data;
+    if(n == 0x0e && data & 0x80) update_memory_map();
+    return;
+  }
+
+  if((addr & 0xf8f000) == 0x105000) {  //$[10-17]:[5000-5fff] SRAM
+    return memory::bsxram.write(((addr >> 16) & 7) * 0x1000 + (addr & 0xfff), data);
+  }
+}
+
+BSXCart::BSXCart() {
+}
+
+BSXCart::~BSXCart() {
+}
+
+#endif
+

asnes/chip/bsx/bsx_flash.cpp

@@ -1,5 +1,7 @@
 #ifdef BSX_CPP
 
+BSXFlash bsxflash;
+
 void BSXFlash::init() {}
 void BSXFlash::enable() {}
 
@@ -15,10 +17,11 @@ void BSXFlash::reset() {
   regs.flash_enable = false;
   regs.read_enable  = false;
   regs.write_enable = false;
+  memory::bsxflash.write_protect(!regs.write_enable);
 }
 
 unsigned BSXFlash::size() const {
-  return memory::bscram.size();
+  return memory::bsxflash.size();
 }
 
 uint8 BSXFlash::read(unsigned addr) {
@@ -45,7 +48,7 @@ uint8 BSXFlash::read(unsigned addr) {
     }
   }
 
-  return memory::bscram.read(addr);
+  return memory::bsxflash.read(addr);
 }
 
 void BSXFlash::write(unsigned addr, uint8 data) {
@@ -57,18 +60,18 @@ void BSXFlash::write(unsigned addr, uint8 data) {
   //use read-write flashcarts, and HiROM-mapped BS-X carts always use
   //read-only flashcarts.
   //below is an unfortunately necessary workaround to this problem.
-  if(cartridge.mapper() == Cartridge::BSCHiROM) return;
+  //if(cartridge.mapper() == Cartridge::BSCHiROM) return;
 
   if((addr & 0xff0000) == 0) {
     regs.write_old = regs.write_new;
     regs.write_new = data;
 
     if(regs.write_enable && regs.write_old == regs.write_new) {
-      return memory::bscram.write(addr, data);
+      return memory::bsxflash.write(addr, data);
     }
   } else {
     if(regs.write_enable) {
-      return memory::bscram.write(addr, data);
+      return memory::bsxflash.write(addr, data);
     }
   }
 
@@ -107,7 +110,10 @@ void BSXFlash::write(unsigned addr, uint8 data) {
       regs.read_enable  = false;
       regs.write_enable = false;
     }
+
+    memory::bsxflash.write_protect(!regs.write_enable);
   }
 }
 
 #endif
+

asnes/chip/chip.hpp

@@ -0,0 +1,31 @@
+struct Coprocessor : Processor {
+  alwaysinline void step(unsigned clocks);
+  alwaysinline void synchronize_cpu();
+};
+
+#include <chip/supergameboy/supergameboy.hpp>
+#include <chip/superfx/superfx.hpp>
+#include <chip/sa1/sa1.hpp>
+#include <chip/bsx/bsx.hpp>
+#include <chip/srtc/srtc.hpp>
+#include <chip/sdd1/sdd1.hpp>
+#include <chip/spc7110/spc7110.hpp>
+#include <chip/cx4/cx4.hpp>
+#include <chip/dsp1/dsp1.hpp>
+#include <chip/dsp2/dsp2.hpp>
+#include <chip/dsp3/dsp3.hpp>
+#include <chip/dsp4/dsp4.hpp>
+#include <chip/obc1/obc1.hpp>
+#include <chip/st0010/st0010.hpp>
+#include <chip/st0011/st0011.hpp>
+#include <chip/st0018/st0018.hpp>
+#include <chip/msu1/msu1.hpp>
+#include <chip/serial/serial.hpp>
+
+void Coprocessor::step(unsigned clocks) {
+  clock += clocks * (uint64)cpu.frequency;
+}
+
+void Coprocessor::synchronize_cpu() {
+  if(clock >= 0 && scheduler.sync != Scheduler::SynchronizeMode::All) co_switch(cpu.thread);
+}

asnes/chip/cx4/cx4.cpp

@@ -1,37 +1,45 @@
-/*
-  C4 emulation
+//=============
+//Cx4 emulation
+//=============
+//Used in Rockman X2/X3 (Megaman X2/X3)
+//Portions (c) anomie, Overload, zsKnight, Nach, byuu
 
-  Used in Rockman X2/X3 (Megaman X2/X3)
-  Portions (c) anomie, Overload, zsKnight, Nach, byuu
-*/
+#include <snes.hpp>
 
-#include <../base.hpp>
 #define CX4_CPP
+namespace SNES {
 
-#include "cx4.hpp"
-#include "cx4data.cpp"
-#include "cx4fn.cpp"
-#include "cx4oam.cpp"
-#include "cx4ops.cpp"
+Cx4 cx4;
 
-void Cx4::init() {}
-void Cx4::enable() {}
+#include "serialization.cpp"
+#include "data.cpp"
+#include "functions.cpp"
+#include "oam.cpp"
+#include "opcodes.cpp"
+
+void Cx4::init() {
+}
+
+void Cx4::enable() {
+}
 
 uint32 Cx4::ldr(uint8 r) {
-uint16 addr = 0x0080 + (r * 3);
-  return (reg[addr]) | (reg[addr + 1] << 8) | (reg[addr + 2] << 16);
+  uint16 addr = 0x0080 + (r * 3);
+  return (reg[addr + 0] <<  0)
+       | (reg[addr + 1] <<  8)
+       | (reg[addr + 2] << 16);
 }
 
 void Cx4::str(uint8 r, uint32 data) {
-uint16 addr = 0x0080 + (r * 3);
-  reg[addr    ] = (data);
+  uint16 addr = 0x0080 + (r * 3);
+  reg[addr + 0] = (data >>  0);
   reg[addr + 1] = (data >>  8);
   reg[addr + 2] = (data >> 16);
 }
 
 void Cx4::mul(uint32 x, uint32 y, uint32 &rl, uint32 &rh) {
-int64 rx = x & 0xffffff;
-int64 ry = y & 0xffffff;
+  int64 rx = x & 0xffffff;
+  int64 ry = y & 0xffffff;
   if(rx & 0x800000)rx |= ~0x7fffff;
   if(ry & 0x800000)ry |= ~0x7fffff;
 
@@ -68,8 +76,9 @@ void Cx4::immediate_reg(uint32 start) {
 }
 
 void Cx4::transfer_data() {
-uint32 src;
-uint16 dest, count;
+  uint32 src;
+  uint16 dest, count;
+
   src   = (reg[0x40]) | (reg[0x41] << 8) | (reg[0x42] << 16);
   count = (reg[0x43]) | (reg[0x44] << 8);
   dest  = (reg[0x45]) | (reg[0x46] << 8);
@@ -93,7 +102,7 @@ void Cx4::write(unsigned addr, uint8 data) {
     return;
   }
 
-//command register
+  //command register
   reg[addr & 0xff] = data;
 
   if(addr == 0x1f47) {
@@ -151,12 +160,12 @@ void Cx4::writeb(uint16 addr, uint8 data) {
 }
 
 void Cx4::writew(uint16 addr, uint16 data) {
-  write(addr,     data);
+  write(addr + 0, data >> 0);
   write(addr + 1, data >> 8);
 }
 
 void Cx4::writel(uint16 addr, uint32 data) {
-  write(addr,     data);
+  write(addr + 0, data >>  0);
   write(addr + 1, data >>  8);
   write(addr + 2, data >> 16);
 }
@@ -195,3 +204,5 @@ void Cx4::reset() {
   memset(ram, 0, 0x0c00);
   memset(reg, 0, 0x0100);
 }
+
+};

asnes/chip/cx4/cx4.hpp

@@ -1,4 +1,15 @@
 class Cx4 : public Memory {
+public:
+  void init();
+  void enable();
+  void power();
+  void reset();
+
+  uint8 read(unsigned addr);
+  void write(unsigned addr, uint8 data);
+
+  void serialize(serializer&);
+
 private:
   uint8  ram[0x0c00];
   uint8  reg[0x0100];
@@ -15,9 +26,6 @@ private:
   int16 C4WFXVal, C4WFYVal, C4WFZVal, C4WFX2Val, C4WFY2Val, C4WFDist, C4WFScale;
   int16 C41FXVal, C41FYVal, C41FAngleRes, C41FDist, C41FDistVal;
 
-  double tanval;
-  double c4x,c4y,c4z, c4x2,c4y2,c4z2;
-
   void C4TransfWireFrame();
   void C4TransfWireFrame2();
   void C4CalcWireFrame();
@@ -82,16 +90,6 @@ public:
   void   writeb(uint16 addr, uint8 data);
   void   writew(uint16 addr, uint16 data);
   void   writel(uint16 addr, uint32 data);
-
-//
-
-  void   init();
-  void   enable();
-  void   power();
-  void   reset();
-
-  uint8  read (unsigned addr);
-  void   write(unsigned addr, uint8 data);
 };
 
 extern Cx4 cx4;

asnes/chip/cx4/functions.cpp

@@ -10,26 +10,27 @@
 
 //Wireframe Helpers
 void Cx4::C4TransfWireFrame() {
-  c4x = (double)C4WFXVal;
-  c4y = (double)C4WFYVal;
-  c4z = (double)C4WFZVal - 0x95;
+  double c4x = (double)C4WFXVal;
+  double c4y = (double)C4WFYVal;
+  double c4z = (double)C4WFZVal - 0x95;
+  double tanval, c4x2, c4y2, c4z2;
 
-//Rotate X
+  //Rotate X
   tanval = -(double)C4WFX2Val * PI * 2 / 128;
   c4y2   = c4y * ::cos(tanval) - c4z * ::sin(tanval);
   c4z2   = c4y * ::sin(tanval) + c4z * ::cos(tanval);
 
-//Rotate Y
+  //Rotate Y
   tanval = -(double)C4WFY2Val * PI * 2 / 128;
   c4x2   = c4x * ::cos(tanval)  + c4z2 * ::sin(tanval);
   c4z    = c4x * -::sin(tanval) + c4z2 * ::cos(tanval);
 
-//Rotate Z
+  //Rotate Z
   tanval = -(double)C4WFDist * PI * 2 / 128;
   c4x    = c4x2 * ::cos(tanval) - c4y2 * ::sin(tanval);
   c4y    = c4x2 * ::sin(tanval) + c4y2 * ::cos(tanval);
 
-//Scale
+  //Scale
   C4WFXVal = (int16)(c4x * C4WFScale / (0x90 * (c4z + 0x95)) * 0x95);
   C4WFYVal = (int16)(c4y * C4WFScale / (0x90 * (c4z + 0x95)) * 0x95);
 }
@@ -52,36 +53,38 @@ void Cx4::C4CalcWireFrame() {
 }
 
 void Cx4::C4TransfWireFrame2() {
-  c4x = (double)C4WFXVal;
-  c4y = (double)C4WFYVal;
-  c4z = (double)C4WFZVal;
+  double c4x = (double)C4WFXVal;
+  double c4y = (double)C4WFYVal;
+  double c4z = (double)C4WFZVal;
+  double tanval, c4x2, c4y2, c4z2;
 
-//Rotate X
+  //Rotate X
   tanval = -(double)C4WFX2Val * PI * 2 / 128;
   c4y2   = c4y * ::cos(tanval) - c4z * ::sin(tanval);
   c4z2   = c4y * ::sin(tanval) + c4z * ::cos(tanval);
 
-//Rotate Y
+  //Rotate Y
   tanval = -(double)C4WFY2Val * PI * 2 / 128;
   c4x2   = c4x * ::cos(tanval)  + c4z2 * ::sin(tanval);
   c4z    = c4x * -::sin(tanval) + c4z2 * ::cos(tanval);
 
-//Rotate Z
+  //Rotate Z
   tanval = -(double)C4WFDist * PI * 2 / 128;
   c4x    = c4x2 * ::cos(tanval) - c4y2 * ::sin(tanval);
   c4y    = c4x2 * ::sin(tanval) + c4y2 * ::cos(tanval);
 
-//Scale
+  //Scale
   C4WFXVal = (int16)(c4x * C4WFScale / 0x100);
   C4WFYVal = (int16)(c4y * C4WFScale / 0x100);
 }
 
 void Cx4::C4DrawWireFrame() {
-uint32 line = readl(0x1f80);
-uint32 point1, point2;
-int16 X1, Y1, Z1;
-int16 X2, Y2, Z2;
-uint8 Color;
+  uint32 line = readl(0x1f80);
+  uint32 point1, point2;
+  int16 X1, Y1, Z1;
+  int16 X2, Y2, Z2;
+  uint8 Color;
+
   for(int32 i = ram[0x0295]; i > 0; i--, line += 5) {
     if(bus.read(line) == 0xff && bus.read(line + 1) == 0xff) {
       int32 tmp = line - 5;
@@ -104,7 +107,7 @@ uint8 Color;
 }
 
 void Cx4::C4DrawLine(int32 X1, int32 Y1, int16 Z1, int32 X2, int32 Y2, int16 Z2, uint8 Color) {
-//Transform coordinates
+  //Transform coordinates
   C4WFXVal  = (int16)X1;
   C4WFYVal  = (int16)Y1;
   C4WFZVal  = Z1;
@@ -123,7 +126,7 @@ void Cx4::C4DrawLine(int32 X1, int32 Y1, int16 Z1, int32 X2, int32 Y2, int16 Z2,
   X2 = (C4WFXVal + 48) << 8;
   Y2 = (C4WFYVal + 48) << 8;
 
-//Get line info
+  //Get line info
   C4WFXVal  = (int16)(X1 >> 8);
   C4WFYVal  = (int16)(Y1 >> 8);
   C4WFX2Val = (int16)(X2 >> 8);
@@ -132,15 +135,15 @@ void Cx4::C4DrawLine(int32 X1, int32 Y1, int16 Z1, int32 X2, int32 Y2, int16 Z2,
   X2 = (int16)C4WFXVal;
   Y2 = (int16)C4WFYVal;
 
-//Render line
+  //Render line
   for(int32 i = C4WFDist ? C4WFDist : 1; i > 0; i--) {
     if(X1 > 0xff && Y1 > 0xff && X1 < 0x6000 && Y1 < 0x6000) {
       uint16 addr = (((Y1 >> 8) >> 3) << 8) - (((Y1 >> 8) >> 3) << 6) + (((X1 >> 8) >> 3) << 4) + ((Y1 >> 8) & 7) * 2;
       uint8 bit = 0x80 >> ((X1 >> 8) & 7);
       ram[addr + 0x300] &= ~bit;
       ram[addr + 0x301] &= ~bit;
-      if(Color & 1) { ram[addr + 0x300] |= bit; }
-      if(Color & 2) { ram[addr + 0x301] |= bit; }
+      if(Color & 1) ram[addr + 0x300] |= bit;
+      if(Color & 2) ram[addr + 0x301] |= bit;
     }
     X1 += X2;
     Y1 += Y2;
@@ -148,11 +151,12 @@ void Cx4::C4DrawLine(int32 X1, int32 Y1, int16 Z1, int32 X2, int32 Y2, int16 Z2,
 }
 
 void Cx4::C4DoScaleRotate(int row_padding) {
-int16 A, B, C, D;
+  int16 A, B, C, D;
+
+  //Calculate matrix
+  int32 XScale = readw(0x1f8f);
+  int32 YScale = readw(0x1f92);
 
-//Calculate matrix
-int32 XScale = readw(0x1f8f);
-int32 YScale = readw(0x1f92);
   if(XScale & 0x8000)XScale = 0x7fff;
   if(YScale & 0x8000)YScale = 0x7fff;
 
@@ -183,28 +187,29 @@ int32 YScale = readw(0x1f92);
     D = (int16)  sar(CosTable[readw(0x1f80) & 0x1ff] * YScale, 15);
   }
 
-//Calculate Pixel Resolution
-uint8 w = read(0x1f89) & ~7;
-uint8 h = read(0x1f8c) & ~7;
+  //Calculate Pixel Resolution
+  uint8 w = read(0x1f89) & ~7;
+  uint8 h = read(0x1f8c) & ~7;
 
-//Clear the output RAM
+  //Clear the output RAM
   memset(ram, 0, (w + row_padding / 4) * h / 2);
 
-int32 Cx = (int16)readw(0x1f83);
-int32 Cy = (int16)readw(0x1f86);
+  int32 Cx = (int16)readw(0x1f83);
+  int32 Cy = (int16)readw(0x1f86);
 
-//Calculate start position (i.e. (Ox, Oy) = (0, 0))
-//The low 12 bits are fractional, so (Cx<<12) gives us the Cx we want in
-//the function. We do Cx*A etc normally because the matrix parameters
-//already have the fractional parts.
-int32 LineX = (Cx << 12) - Cx * A - Cx * B;
-int32 LineY = (Cy << 12) - Cy * C - Cy * D;
+  //Calculate start position (i.e. (Ox, Oy) = (0, 0))
+  //The low 12 bits are fractional, so (Cx<<12) gives us the Cx we want in
+  //the function. We do Cx*A etc normally because the matrix parameters
+  //already have the fractional parts.
+  int32 LineX = (Cx << 12) - Cx * A - Cx * B;
+  int32 LineY = (Cy << 12) - Cy * C - Cy * D;
+
+  //Start loop
+  uint32 X, Y;
+  uint8 byte;
+  int32 outidx = 0;
+  uint8 bit    = 0x80;
 
-//Start loop
-uint32 X, Y;
-uint8 byte;
-int32 outidx = 0;
-uint8 bit    = 0x80;
   for(int32 y = 0; y < h; y++) {
     X = LineX;
     Y = LineY;
@@ -218,10 +223,10 @@ uint8 bit    = 0x80;
       }
 
       //De-bitplanify
-      if(byte & 1) { ram[outidx     ] |= bit; }
-      if(byte & 2) { ram[outidx +  1] |= bit; }
-      if(byte & 4) { ram[outidx + 16] |= bit; }
-      if(byte & 8) { ram[outidx + 17] |= bit; }
+      if(byte & 1) ram[outidx     ] |= bit;
+      if(byte & 2) ram[outidx +  1] |= bit;
+      if(byte & 4) ram[outidx + 16] |= bit;
+      if(byte & 8) ram[outidx + 17] |= bit;
 
       bit >>= 1;
       if(!bit) {

asnes/chip/cx4/oam.cpp

@@ -2,26 +2,28 @@
 
 //Build OAM
 void Cx4::op00_00() {
-uint32 oamptr = ram[0x626] << 2;
+  uint32 oamptr = ram[0x626] << 2;
   for(int32 i = 0x1fd; i > oamptr && i >= 0; i -= 4) {
     //clear oam-to-be
-    if(i >= 0)ram[i] = 0xe0;
+    if(i >= 0) ram[i] = 0xe0;
   }
 
-uint16 globalx, globaly;
-uint32 oamptr2;
-int16  sprx, spry;
-uint8  sprname, sprattr;
-uint8  sprcount;
+  uint16 globalx, globaly;
+  uint32 oamptr2;
+  int16  sprx, spry;
+  uint8  sprname, sprattr;
+  uint8  sprcount;
+
   globalx = readw(0x621);
   globaly = readw(0x623);
   oamptr2 = 0x200 + (ram[0x626] >> 2);
 
-  if(!ram[0x620])return;
+  if(!ram[0x620]) return;
 
   sprcount = 128 - ram[0x626];
-uint8 offset = (ram[0x626] & 3) * 2;
-uint32 srcptr = 0x220;
+  uint8 offset = (ram[0x626] & 3) * 2;
+  uint32 srcptr = 0x220;
+
   for(int i = ram[0x620]; i > 0 && sprcount > 0; i--, srcptr += 16) {
     sprx = readw(srcptr)     - globalx;
     spry = readw(srcptr + 2) - globaly;
@@ -49,8 +51,8 @@ uint32 srcptr = 0x220;
             ram[oamptr + 2] = sprname + bus.read(spraddr + 3);
             ram[oamptr + 3] = sprattr ^ (bus.read(spraddr) & 0xc0);
             ram[oamptr2] &= ~(3 << offset);
-            if(x & 0x100)ram[oamptr2] |= 1 << offset;
-            if(bus.read(spraddr) & 0x20)ram[oamptr2] |= 2 << offset;
+            if(x & 0x100) ram[oamptr2] |= 1 << offset;
+            if(bus.read(spraddr) & 0x20) ram[oamptr2] |= 2 << offset;
             oamptr += 4;
             sprcount--;
             offset = (offset + 2) & 6;
@@ -64,12 +66,12 @@ uint32 srcptr = 0x220;
       ram[oamptr + 2] = sprname;
       ram[oamptr + 3] = sprattr;
       ram[oamptr2] &= ~(3 << offset);
-      if(sprx & 0x100)ram[oamptr2] |= 3 << offset;
+      if(sprx & 0x100) ram[oamptr2] |= 3 << offset;
       else ram[oamptr2] |= 2 << offset;
       oamptr += 4;
       sprcount--;
       offset = (offset + 2) & 6;
-      if(!offset)oamptr2++;
+      if(!offset) oamptr2++;
     }
   }
 }
@@ -107,7 +109,8 @@ uint32 ptr = 0;
   writew(0x605 + 8, 0x40);
 
   ptr = 0xb02;
-uint32 ptr2 = 0;
+  uint32 ptr2 = 0;
+
   for(int32 i = readw(0xb00); i > 0; i--, ptr += 2, ptr2 += 8) {
     C4WFXVal  = readw((read(ptr + 0) << 4) + 1);
     C4WFYVal  = readw((read(ptr + 0) << 4) + 5);
@@ -132,13 +135,14 @@ void Cx4::op00_08() {
 
 //Disintegrate
 void Cx4::op00_0b() {
-uint8  width, height;
-uint32 startx, starty;
-uint32 srcptr;
-uint32 x, y;
-int32  scalex, scaley;
-int32  cx, cy;
-int32  i, j;
+  uint8  width, height;
+  uint32 startx, starty;
+  uint32 srcptr;
+  uint32 x, y;
+  int32  scalex, scaley;
+  int32  cx, cy;
+  int32  i, j;
+
   width  = read(0x1f89);
   height = read(0x1f8c);
   cx     = readw(0x1f80);
@@ -160,22 +164,23 @@ int32  i, j;
         uint8 pixel = (j & 1) ? (ram[srcptr] >> 4) : (ram[srcptr]);
         int32 index = (y >> 11) * width * 4 + (x >> 11) * 32 + ((y >> 8) & 7) * 2;
         uint8 mask = 0x80 >> ((x >> 8) & 7);
-        if(pixel & 1)ram[index     ] |= mask;
-        if(pixel & 2)ram[index +  1] |= mask;
-        if(pixel & 4)ram[index + 16] |= mask;
-        if(pixel & 8)ram[index + 17] |= mask;
+
+        if(pixel & 1) ram[index     ] |= mask;
+        if(pixel & 2) ram[index +  1] |= mask;
+        if(pixel & 4) ram[index + 16] |= mask;
+        if(pixel & 8) ram[index + 17] |= mask;
       }
-      if(j & 1)srcptr++;
+      if(j & 1) srcptr++;
     }
   }
 }
 
 //Bitplane Wave
 void Cx4::op00_0c() {
-uint32 destptr = 0;
-uint32 waveptr = read(0x1f83);
-uint16 mask1   = 0xc0c0;
-uint16 mask2   = 0x3f3f;
+  uint32 destptr = 0;
+  uint32 waveptr = read(0x1f83);
+  uint16 mask1   = 0xc0c0;
+  uint16 mask2   = 0x3f3f;
 
   for(int j = 0; j < 0x10; j++) {
     do {

asnes/chip/cx4/opcodes.cpp

@@ -3,13 +3,13 @@
 //Sprite Functions
 void Cx4::op00() {
   switch(reg[0x4d]) {
-  case 0x00:op00_00();break;
-  case 0x03:op00_03();break;
-  case 0x05:op00_05();break;
-  case 0x07:op00_07();break;
-  case 0x08:op00_08();break;
-  case 0x0b:op00_0b();break;
-  case 0x0c:op00_0c();break;
+    case 0x00: op00_00(); break;
+    case 0x03: op00_03(); break;
+    case 0x05: op00_05(); break;
+    case 0x07: op00_07(); break;
+    case 0x08: op00_08(); break;
+    case 0x0b: op00_0b(); break;
+    case 0x0c: op00_0c(); break;
   }
 }
 
@@ -21,7 +21,7 @@ void Cx4::op01() {
 
 //Propulsion
 void Cx4::op05() {
-int32 temp = 0x10000;
+  int32 temp = 0x10000;
   if(readw(0x1f83)) {
     temp = sar((temp / readw(0x1f83)) * readw(0x1f81), 8);
   }
@@ -33,7 +33,7 @@ void Cx4::op0d() {
   C41FXVal    = readw(0x1f80);
   C41FYVal    = readw(0x1f83);
   C41FDistVal = readw(0x1f86);
-  tanval = sqrt(((double)C41FYVal) * ((double)C41FYVal) + ((double)C41FXVal) * ((double)C41FXVal));
+  double tanval = sqrt(((double)C41FYVal) * ((double)C41FYVal) + ((double)C41FXVal) * ((double)C41FXVal));
   tanval = (double)C41FDistVal / tanval;
   C41FYVal = (int16)(((double)C41FYVal * tanval) * 0.99);
   C41FXVal = (int16)(((double)C41FXVal * tanval) * 0.98);
@@ -103,7 +103,7 @@ void Cx4::op1f() {
   if(!C41FXVal) {
     C41FAngleRes = (C41FYVal > 0) ? 0x080 : 0x180;
   } else {
-    tanval = ((double)C41FYVal) / ((double)C41FXVal);
+    double tanval = ((double)C41FYVal) / ((double)C41FXVal);
     C41FAngleRes = (short)(atan(tanval) / (PI * 2) * 512);
     C41FAngleRes = C41FAngleRes;
     if(C41FXVal < 0) {
@@ -116,12 +116,13 @@ void Cx4::op1f() {
 
 //Trapezoid
 void Cx4::op22() {
-int16 angle1 = readw(0x1f8c) & 0x1ff;
-int16 angle2 = readw(0x1f8f) & 0x1ff;
-int32 tan1 = Tan(angle1);
-int32 tan2 = Tan(angle2);
-int16 y = readw(0x1f83) - readw(0x1f89);
-int16 left, right;
+  int16 angle1 = readw(0x1f8c) & 0x1ff;
+  int16 angle2 = readw(0x1f8f) & 0x1ff;
+  int32 tan1 = Tan(angle1);
+  int32 tan2 = Tan(angle2);
+  int16 y = readw(0x1f83) - readw(0x1f89);
+  int16 left, right;
+
   for(int32 j = 0; j < 225; j++, y++) {
     if(y >= 0) {
       left  = sar((int32)tan1 * y, 16) - readw(0x1f80) + readw(0x1f86);

asnes/chip/cx4/serialization.cpp

@@ -0,0 +1,39 @@
+#ifdef CX4_CPP
+
+void Cx4::serialize(serializer &s) {
+  s.array(ram);
+  s.array(reg);
+
+  s.integer(r0);
+  s.integer(r1);
+  s.integer(r2);
+  s.integer(r3);
+  s.integer(r4);
+  s.integer(r5);
+  s.integer(r6);
+  s.integer(r7);
+  s.integer(r8);
+  s.integer(r9);
+  s.integer(r10);
+  s.integer(r11);
+  s.integer(r12);
+  s.integer(r13);
+  s.integer(r14);
+  s.integer(r15);
+
+  s.integer(C4WFXVal);
+  s.integer(C4WFYVal);
+  s.integer(C4WFZVal);
+  s.integer(C4WFX2Val);
+  s.integer(C4WFY2Val);
+  s.integer(C4WFDist);
+  s.integer(C4WFScale);
+
+  s.integer(C41FXVal);
+  s.integer(C41FYVal);
+  s.integer(C41FAngleRes);
+  s.integer(C41FDist);
+  s.integer(C41FDistVal);
+}
+
+#endif

asnes/chip/dsp1/dsp1.cpp

@@ -0,0 +1,33 @@
+#include <snes.hpp>
+
+#define DSP1_CPP
+namespace SNES {
+
+DSP1 dsp1;
+DSP1DR dsp1dr;
+DSP1SR dsp1sr;
+
+#include "serialization.cpp"
+#include "dsp1emu.cpp"
+
+void DSP1::init() {
+}
+
+void DSP1::enable() {
+}
+
+void DSP1::power() {
+  reset();
+}
+
+void DSP1::reset() {
+  dsp1.reset();
+}
+
+uint8 DSP1DR::read(unsigned addr) { return dsp1.dsp1.getDr(); }
+void DSP1DR::write(unsigned addr, uint8 data) { dsp1.dsp1.setDr(data); }
+
+uint8 DSP1SR::read(unsigned addr) { return dsp1.dsp1.getSr(); }
+void DSP1SR::write(unsigned addr, uint8 data) {}
+
+}

asnes/chip/dsp1/dsp1.hpp

@@ -0,0 +1,30 @@
+#include "dsp1emu.hpp"
+
+class DSP1 {
+public:
+  void init();
+  void enable();
+  void power();
+  void reset();
+
+  void serialize(serializer&);
+
+private:
+  Dsp1 dsp1;
+  friend class DSP1DR;
+  friend class DSP1SR;
+};
+
+class DSP1DR : public Memory {
+  uint8 read(unsigned addr);
+  void write(unsigned addr, uint8 data);
+};
+
+class DSP1SR : public Memory {
+  uint8 read(unsigned addr);
+  void write(unsigned addr, uint8 data);
+};
+
+extern DSP1 dsp1;
+extern DSP1DR dsp1dr;
+extern DSP1SR dsp1sr;

asnes/chip/dsp1/dsp1emu.hpp

@@ -33,6 +33,8 @@ class Dsp1
       void setDr(uint8 iDr);
       void reset();
 
+      void serialize(serializer&);
+
    private:
       enum FsmMajorState {WAIT_COMMAND, READ_DATA, WRITE_DATA};
       enum MaxDataAccesses {MAX_READS=7, MAX_WRITES=1024};
@@ -72,7 +74,7 @@ class Dsp1
       uint8 mSr;            // status register
       int mSrLowByteAccess;
       uint16 mDr;           // "internal" representation of the data register
-      FsmMajorState mFsmMajorState;     // current major state of the FSM
+      unsigned mFsmMajorState;     // current major state of the FSM
       uint8 mCommand;                  // current command processed by the FSM
       uint8 mDataCounter;                 // #uint16 read/writes counter used by the FSM
       int16 mReadBuffer[MAX_READS];

asnes/chip/dsp1/serialization.cpp

@@ -0,0 +1,56 @@
+#ifdef DSP1_CPP
+
+void DSP1::serialize(serializer &s) {
+  dsp1.serialize(s);
+}
+
+void Dsp1::serialize(serializer &s) {
+  for(unsigned i = 0; i < 3; i++) {
+    s.array(shared.MatrixA[i]);
+    s.array(shared.MatrixB[i]);
+    s.array(shared.MatrixC[i]);
+  }
+
+  s.integer(shared.CentreX);
+  s.integer(shared.CentreY);
+  s.integer(shared.CentreZ);
+  s.integer(shared.CentreZ_C);
+  s.integer(shared.CentreZ_E);
+  s.integer(shared.VOffset);
+  s.integer(shared.Les);
+  s.integer(shared.C_Les);
+  s.integer(shared.E_Les);
+  s.integer(shared.SinAas);
+  s.integer(shared.CosAas);
+  s.integer(shared.SinAzs);
+  s.integer(shared.CosAzs);
+  s.integer(shared.SinAZS);
+  s.integer(shared.CosAZS);
+  s.integer(shared.SecAZS_C1);
+  s.integer(shared.SecAZS_E1);
+  s.integer(shared.SecAZS_C2);
+  s.integer(shared.SecAZS_E2);
+  s.integer(shared.Nx);
+  s.integer(shared.Ny);
+  s.integer(shared.Nz);
+  s.integer(shared.Gx);
+  s.integer(shared.Gy);
+  s.integer(shared.Gz);
+  s.integer(shared.Hx);
+  s.integer(shared.Hy);
+  s.integer(shared.Vx);
+  s.integer(shared.Vy);
+  s.integer(shared.Vz);
+
+  s.integer(mSr);
+  s.integer(mSrLowByteAccess);
+  s.integer(mDr);
+  s.integer(mFsmMajorState);
+  s.integer(mCommand);
+  s.integer(mDataCounter);
+  s.array(mReadBuffer);
+  s.array(mWriteBuffer);
+  s.integer(mFreeze);
+}
+
+#endif

asnes/chip/dsp2/dsp2.cpp

@@ -1,11 +1,20 @@
-#include <../base.hpp>
+#include <snes.hpp>
+
 #define DSP2_CPP
+namespace SNES {
 
-#include "dsp2.hpp"
-#include "dsp2_op.cpp"
+DSP2 dsp2;
+DSP2DR dsp2dr;
+DSP2SR dsp2sr;
 
-void DSP2::init() {}
-void DSP2::enable() {}
+#include "serialization.cpp"
+#include "opcodes.cpp"
+
+void DSP2::init() {
+}
+
+void DSP2::enable() {
+}
 
 void DSP2::power() {
   reset();
@@ -134,3 +143,11 @@ void DSP2::write(unsigned addr, uint8 data) {
 
 DSP2::DSP2() {}
 DSP2::~DSP2() {}
+
+uint8 DSP2DR::read(unsigned addr) { return dsp2.read(addr); }
+void DSP2DR::write(unsigned addr, uint8 data) { dsp2.write(addr, data); }
+
+uint8 DSP2SR::read(unsigned addr) { return 0x00; }
+void DSP2SR::write(unsigned addr, uint8 data) {}
+
+}

asnes/chip/dsp2/dsp2.hpp

@@ -1,4 +1,4 @@
-class DSP2 : public Memory {
+class DSP2 {
 public:
   struct {
     bool waiting_for_command;
@@ -29,6 +29,7 @@ public:
   uint8 read(unsigned addr);
   void write(unsigned addr, uint8 data);
 
+  void serialize(serializer&);
   DSP2();
   ~DSP2();
 
@@ -41,4 +42,16 @@ protected:
   void op0d();
 };
 
+class DSP2DR : public Memory {
+  uint8 read(unsigned addr);
+  void write(unsigned addr, uint8 data);
+};
+
+class DSP2SR : public Memory {
+  uint8 read(unsigned addr);
+  void write(unsigned addr, uint8 data);
+};
+
 extern DSP2 dsp2;
+extern DSP2DR dsp2dr;
+extern DSP2SR dsp2sr;

asnes/chip/dsp2/serialization.cpp

@@ -0,0 +1,26 @@
+#ifdef DSP2_CPP
+
+void DSP2::serialize(serializer &s) {
+  s.integer(status.waiting_for_command);
+  s.integer(status.command);
+  s.integer(status.in_count);
+  s.integer(status.in_index);
+  s.integer(status.out_count);
+  s.integer(status.out_index);
+
+  s.array(status.parameters);
+  s.array(status.output);
+
+  s.integer(status.op05transparent);
+  s.integer(status.op05haslen);
+  s.integer(status.op05len);
+  s.integer(status.op06haslen);
+  s.integer(status.op06len);
+  s.integer(status.op09word1);
+  s.integer(status.op09word2);
+  s.integer(status.op0dhaslen);
+  s.integer(status.op0doutlen);
+  s.integer(status.op0dinlen);
+}
+
+#endif

asnes/chip/dsp3/dsp3.cpp

@@ -1,7 +1,10 @@
-#include <../base.hpp>
-#define DSP3_CPP
+#include <snes.hpp>
+
+#define DSP3_CPP
+namespace SNES {
+
+DSP3 dsp3;
 
-#include "dsp3.hpp"
 namespace DSP3i {
   #define bool8 uint8
   #include "dsp3emu.c"
@@ -33,3 +36,5 @@ void DSP3::write(unsigned addr, uint8 data) {
   DSP3i::dsp3_byte = data;
   DSP3i::DSP3SetByte();
 }
+
+}

asnes/chip/dsp4/dsp4.cpp

@@ -1,7 +1,16 @@
-#include <../base.hpp>
-#define DSP4_CPP
+#include <snes.hpp>
+
+#define DSP4_CPP
+namespace SNES {
+
+DSP4 dsp4;
+
+void DSP4::init() {
+}
+
+void DSP4::enable() {
+}
 
-#include "dsp4.hpp"
 namespace DSP4i {
   inline uint16 READ_WORD(uint8 *addr) {
     return (addr[0]) + (addr[1] << 8);
@@ -21,12 +30,6 @@ namespace DSP4i {
   #undef bool8
 };
 
-void DSP4::init() {
-}
-
-void DSP4::enable() {
-}
-
 void DSP4::power() {
   reset();
 }
@@ -53,3 +56,5 @@ void DSP4::write(unsigned addr, uint8 data) {
     DSP4i::DSP4SetByte();
   }
 }
+
+}

asnes/chip/dsp4/dsp4emu.c

@@ -2062,9 +2062,9 @@ void DSP4SetByte()
       // unknown
       case 0x000A:
       {
-        //int16 in1a = DSP4_READ_WORD();
+        int16 in1a = DSP4_READ_WORD();
         int16 in2a = DSP4_READ_WORD();
-        //int16 in3a = DSP4_READ_WORD();
+        int16 in3a = DSP4_READ_WORD();
         int16 out1a, out2a, out3a, out4a;
 
         DSP4_OP0A(in2a, &out2a, &out1a, &out4a, &out3a);

asnes/chip/msu1/msu1.cpp

@@ -0,0 +1,148 @@
+#include <snes.hpp>
+
+#define MSU1_CPP
+namespace SNES {
+
+MSU1 msu1;
+
+#include "serialization.cpp"
+
+void MSU1::Enter() { msu1.enter(); }
+
+void MSU1::enter() {
+  while(true) {
+    if(scheduler.sync == Scheduler::SynchronizeMode::All) {
+      scheduler.exit(Scheduler::ExitReason::SynchronizeEvent);
+    }
+
+    int16 left = 0, right = 0;
+
+    if(mmio.audio_play) {
+      if(audiofile.open()) {
+        if(audiofile.end()) {
+          if(!mmio.audio_repeat) mmio.audio_play = false;
+          audiofile.seek(mmio.audio_offset = 58);
+        } else {
+          mmio.audio_offset += 4;
+          left  = audiofile.readl(2);
+          right = audiofile.readl(2);
+        }
+      } else {
+        mmio.audio_play = false;
+      }
+    }
+
+    left  = sclamp<16>((double)left  * (double)mmio.audio_volume / 255.0);
+    right = sclamp<16>((double)right * (double)mmio.audio_volume / 255.0);
+
+    audio.coprocessor_sample(left, right);
+    step(1);
+    synchronize_cpu();
+  }
+}
+
+void MSU1::init() {
+}
+
+void MSU1::enable() {
+  audio.coprocessor_enable(true);
+  audio.coprocessor_frequency(44100.0);
+
+  if(datafile.open()) datafile.close();
+  datafile.open(string() << cartridge.basename() << ".msu", file::mode_read);
+}
+
+void MSU1::power() {
+  reset();
+}
+
+void MSU1::reset() {
+  create(MSU1::Enter, 44100);
+
+  mmio.data_offset  = 0;
+  mmio.audio_offset = 0;
+  mmio.audio_track  = 0;
+  mmio.audio_volume = 255;
+  mmio.data_busy    = true;
+  mmio.audio_busy   = true;
+  mmio.audio_repeat = false;
+  mmio.audio_play   = false;
+}
+
+uint8 MSU1::mmio_read(unsigned addr) {
+  addr &= 0xffff;
+
+  if(addr == 0x2000) {
+    return (mmio.data_busy    << 7)
+         | (mmio.audio_busy   << 6)
+         | (mmio.audio_repeat << 5)
+         | (mmio.audio_play   << 4)
+         | (Revision          << 0);
+  }
+
+  if(addr == 0x2001) {
+    if(mmio.data_busy) return 0x00;
+    mmio.data_offset++;
+    if(datafile.open()) return datafile.read();
+    return 0x00;
+  }
+
+  if(addr == 0x2002) return 'S';
+  if(addr == 0x2003) return '-';
+  if(addr == 0x2004) return 'M';
+  if(addr == 0x2005) return 'S';
+  if(addr == 0x2006) return 'U';
+  if(addr == 0x2007) return '0' + Revision;
+
+  return 0x00;
+}
+
+void MSU1::mmio_write(unsigned addr, uint8 data) {
+  addr &= 0xffff;
+
+  if(addr == 0x2000) {
+    mmio.data_offset = (mmio.data_offset & 0xffffff00) | (data <<  0);
+  }
+
+  if(addr == 0x2001) {
+    mmio.data_offset = (mmio.data_offset & 0xffff00ff) | (data <<  8);
+  }
+
+  if(addr == 0x2002) {
+    mmio.data_offset = (mmio.data_offset & 0xff00ffff) | (data << 16);
+  }
+
+  if(addr == 0x2003) {
+    mmio.data_offset = (mmio.data_offset & 0x00ffffff) | (data << 24);
+    if(datafile.open()) datafile.seek(mmio.data_offset);
+    mmio.data_busy = false;
+  }
+
+  if(addr == 0x2004) {
+    mmio.audio_track = (mmio.audio_track & 0xff00) | (data << 0);
+  }
+
+  if(addr == 0x2005) {
+    mmio.audio_track = (mmio.audio_track & 0x00ff) | (data << 8);
+    if(audiofile.open()) audiofile.close();
+    char track[16];
+    sprintf(track, "-%u", mmio.audio_track);
+    if(audiofile.open(string() << cartridge.basename() << track << ".wav", file::mode_read)) {
+      audiofile.seek(mmio.audio_offset = 58);  //skip WAV header
+    }
+    mmio.audio_busy   = false;
+    mmio.audio_repeat = false;
+    mmio.audio_play   = false;
+  }
+
+  if(addr == 0x2006) {
+    mmio.audio_volume = data;
+  }
+
+  if(addr == 0x2007) {
+    mmio.audio_repeat = data & 2;
+    mmio.audio_play   = data & 1;
+  }
+}
+
+}

asnes/chip/msu1/msu1.hpp

@@ -0,0 +1,39 @@
+class MSU1 : public Coprocessor, public MMIO {
+public:
+  static void Enter();
+  void enter();
+  void init();
+  void enable();
+  void power();
+  void reset();
+
+  uint8 mmio_read(unsigned addr);
+  void mmio_write(unsigned addr, uint8 data);
+
+  void serialize(serializer&);
+
+private:
+  file datafile;
+  file audiofile;
+
+  enum Flag {
+    DataBusy       = 0x80,
+    AudioBusy      = 0x40,
+    AudioRepeating = 0x20,
+    AudioPlaying   = 0x10,
+    Revision       = 0x01,
+  };
+
+  struct MMIO {
+    uint32 data_offset;
+    uint32 audio_offset;
+    uint16 audio_track;
+    uint8 audio_volume;
+    bool data_busy;
+    bool audio_busy;
+    bool audio_repeat;
+    bool audio_play;
+  } mmio;
+};
+
+extern MSU1 msu1;

asnes/chip/msu1/serialization.cpp

@@ -0,0 +1,28 @@
+#ifdef MSU1_CPP
+
+void MSU1::serialize(serializer &s) {
+  Processor::serialize(s);
+
+  s.integer(mmio.data_offset);
+  s.integer(mmio.audio_offset);
+  s.integer(mmio.audio_track);
+  s.integer(mmio.audio_volume);
+  s.integer(mmio.data_busy);
+  s.integer(mmio.audio_busy);
+  s.integer(mmio.audio_repeat);
+  s.integer(mmio.audio_play);
+
+  if(datafile.open()) datafile.close();
+  if(datafile.open(string() << cartridge.basename() << ".msu", file::mode_read)) {
+    datafile.seek(mmio.data_offset);
+  }
+
+  if(audiofile.open()) audiofile.close();
+  char track[16];
+  sprintf(track, "-%u", mmio.audio_track);
+  if(audiofile.open(string() << cartridge.basename() << track << ".wav", file::mode_read)) {
+    audiofile.seek(mmio.audio_offset);
+  }
+}
+
+#endif

asnes/chip/obc1/obc1.cpp

@@ -1,9 +1,17 @@
-#include <../base.hpp>
-#include <../cart/cart.hpp>
-#include "obc1.hpp"
+#include <snes.hpp>
 
-void OBC1::init() {}
-void OBC1::enable() {}
+#define OBC1_CPP
+namespace SNES {
+
+OBC1 obc1;
+
+#include "serialization.cpp"
+
+void OBC1::init() {
+}
+
+void OBC1::enable() {
+}
 
 void OBC1::power() {
   reset();
@@ -70,3 +78,5 @@ void OBC1::ram_write(unsigned addr, uint8 data) {
 
 OBC1::OBC1() {}
 OBC1::~OBC1() {}
+
+}

asnes/chip/obc1/obc1.hpp

@@ -8,6 +8,7 @@ public:
   uint8 read(unsigned addr);
   void write(unsigned addr, uint8 data);
 
+  void serialize(serializer&);
   OBC1();
   ~OBC1();
 

asnes/chip/obc1/serialization.cpp

@@ -0,0 +1,9 @@
+#ifdef OBC1_CPP
+
+void OBC1::serialize(serializer &s) {
+  s.integer(status.address);
+  s.integer(status.baseptr);
+  s.integer(status.shift);
+}
+
+#endif

asnes/chip/sa1/bus/bus.cpp

@@ -0,0 +1,218 @@
+#ifdef SA1_CPP
+
+VBRBus vbrbus;
+SA1Bus sa1bus;
+
+namespace memory {
+  StaticRAM iram(2048);
+                        //accessed by:
+  VSPROM vsprom;        //S-CPU + SA-1
+  CPUIRAM cpuiram;      //S-CPU
+  SA1IRAM sa1iram;      //SA-1
+  SA1BWRAM sa1bwram;    //SA-1
+  CC1BWRAM cc1bwram;    //S-CPU
+  BitmapRAM bitmapram;  //SA-1
+}
+
+//$230c (VDPL), $230d (VDPH) use this bus to read variable-length data.
+//this is used both to avoid VBR-reads from accessing MMIO registers, and
+//to avoid syncing the S-CPU and SA-1*; as both chips are able to access
+//these ports.
+//(* eg, memory::cartram is used directly, as memory::sa1bwram syncs to the S-CPU)
+void VBRBus::init() {
+  map(MapMode::Direct, 0x00, 0xff, 0x0000, 0xffff, memory::memory_unmapped);
+
+  map(MapMode::Linear, 0x00, 0x3f, 0x0000, 0x07ff, memory::iram);
+  map(MapMode::Linear, 0x00, 0x3f, 0x3000, 0x37ff, memory::iram);
+  map(MapMode::Linear, 0x00, 0x3f, 0x6000, 0x7fff, memory::cartram);
+  map(MapMode::Linear, 0x00, 0x3f, 0x8000, 0xffff, memory::vsprom);
+  map(MapMode::Linear, 0x40, 0x4f, 0x0000, 0xffff, memory::cartram);
+  map(MapMode::Linear, 0x80, 0xbf, 0x0000, 0x07ff, memory::iram);
+  map(MapMode::Linear, 0x80, 0xbf, 0x3000, 0x37ff, memory::iram);
+  map(MapMode::Linear, 0x80, 0xbf, 0x6000, 0x7fff, memory::cartram);
+  map(MapMode::Linear, 0x80, 0xbf, 0x8000, 0xffff, memory::vsprom);
+  map(MapMode::Linear, 0xc0, 0xff, 0x0000, 0xffff, memory::vsprom);
+}
+
+void SA1Bus::init() {
+  map(MapMode::Direct, 0x00, 0xff, 0x0000, 0xffff, memory::memory_unmapped);
+
+  map(MapMode::Linear, 0x00, 0x3f, 0x0000, 0x07ff, memory::sa1iram);
+  map(MapMode::Direct, 0x00, 0x3f, 0x2200, 0x23ff, memory::mmio);
+  map(MapMode::Linear, 0x00, 0x3f, 0x3000, 0x37ff, memory::sa1iram);
+  map(MapMode::Linear, 0x00, 0x3f, 0x6000, 0x7fff, memory::sa1bwram);
+  map(MapMode::Linear, 0x00, 0x3f, 0x8000, 0xffff, memory::vsprom);
+  map(MapMode::Linear, 0x40, 0x4f, 0x0000, 0xffff, memory::sa1bwram);
+  map(MapMode::Linear, 0x60, 0x6f, 0x0000, 0xffff, memory::bitmapram);
+  map(MapMode::Linear, 0x80, 0xbf, 0x0000, 0x07ff, memory::sa1iram);
+  map(MapMode::Direct, 0x80, 0xbf, 0x2200, 0x23ff, memory::mmio);
+  map(MapMode::Linear, 0x80, 0xbf, 0x3000, 0x37ff, memory::sa1iram);
+  map(MapMode::Linear, 0x80, 0xbf, 0x6000, 0x7fff, memory::sa1bwram);
+  map(MapMode::Linear, 0x80, 0xbf, 0x8000, 0xffff, memory::vsprom);
+  map(MapMode::Linear, 0xc0, 0xff, 0x0000, 0xffff, memory::vsprom);
+}
+
+//======
+//VSPROM
+//======
+
+//this class maps $00:[ff00-ffff] for the purpose of supporting:
+//$2209.d6 IVSW (S-CPU IRQ vector selection) (0 = cart, 1 = SA-1)
+//$2209.d4 NVSW (S-CPU NMI vector selection) (0 = cart, 1 = SA-1)
+//when set, vector addresses are over-ridden with SA-1 register settings:
+//SIV = S-CPU IRQ vector address override
+//SNV = S-CPU NMI vector address override
+//
+//$00:[ffea-ffeb|ffee-ffef] are special cased on read;
+//all other addresses return original mapped data.
+
+unsigned VSPROM::size() const {
+  return memory::cartrom.size();
+}
+
+uint8 VSPROM::read(unsigned addr) {
+  //use $7fex instead of $ffex due to linear mapping of 32k granularity ROM data
+  if((addr & 0xffffe0) == 0x007fe0) {
+    if(addr == 0x7fea && sa1.mmio.cpu_nvsw) return sa1.mmio.snv >> 0;
+    if(addr == 0x7feb && sa1.mmio.cpu_nvsw) return sa1.mmio.snv >> 8;
+    if(addr == 0x7fee && sa1.mmio.cpu_ivsw) return sa1.mmio.siv >> 0;
+    if(addr == 0x7fef && sa1.mmio.cpu_ivsw) return sa1.mmio.siv >> 8;
+  }
+  return memory::cartrom.read(addr);
+}
+
+void VSPROM::write(unsigned addr, uint8 data) {
+}
+
+//=======
+//SA1IRAM
+//=======
+
+unsigned SA1IRAM::size() const {
+  return memory::iram.size();
+}
+
+uint8 SA1IRAM::read(unsigned addr) {
+  sa1.synchronize_cpu();
+  return memory::iram.read(addr);
+}
+
+void SA1IRAM::write(unsigned addr, uint8 data) {
+  sa1.synchronize_cpu();
+  memory::iram.write(addr, data);
+}
+
+//=======
+//CPUIRAM
+//=======
+
+unsigned CPUIRAM::size() const {
+  return memory::iram.size();
+}
+
+uint8 CPUIRAM::read(unsigned addr) {
+  cpu.synchronize_coprocessor();
+  return memory::iram.read(addr);
+}
+
+void CPUIRAM::write(unsigned addr, uint8 data) {
+  cpu.synchronize_coprocessor();
+  memory::iram.write(addr, data);
+}
+
+//========
+//SA1BWRAM
+//========
+
+unsigned SA1BWRAM::size() const {
+  return memory::cartram.size();
+}
+
+uint8 SA1BWRAM::read(unsigned addr) {
+  sa1.synchronize_cpu();
+  return memory::cartram.read(addr);
+}
+
+void SA1BWRAM::write(unsigned addr, uint8 data) {
+  sa1.synchronize_cpu();
+  memory::cartram.write(addr, data);
+}
+
+//========
+//CC1BWRAM
+//========
+
+unsigned CC1BWRAM::size() const {
+  return memory::cartram.size();
+}
+
+uint8 CC1BWRAM::read(unsigned addr) {
+  cpu.synchronize_coprocessor();
+  if(dma) return sa1.dma_cc1_read(addr);
+  return memory::cartram.read(addr);
+}
+
+void CC1BWRAM::write(unsigned addr, uint8 data) {
+  cpu.synchronize_coprocessor();
+  memory::cartram.write(addr, data);
+}
+
+//=========
+//BitmapRAM
+//=========
+
+unsigned BitmapRAM::size() const {
+  return 0x100000;
+}
+
+uint8 BitmapRAM::read(unsigned addr) {
+  sa1.synchronize_cpu();
+
+  if(sa1.mmio.bbf == 0) {
+    //4bpp
+    unsigned shift = addr & 1;
+    addr = (addr >> 1) & (memory::cartram.size() - 1);
+    switch(shift) { default:
+      case 0: return (memory::cartram.read(addr) >> 0) & 15;
+      case 1: return (memory::cartram.read(addr) >> 4) & 15;
+    }
+  } else {
+    //2bpp
+    unsigned shift = addr & 3;
+    addr = (addr >> 2) & (memory::cartram.size() - 1);
+    switch(shift) { default:
+      case 0: return (memory::cartram.read(addr) >> 0) & 3;
+      case 1: return (memory::cartram.read(addr) >> 2) & 3;
+      case 2: return (memory::cartram.read(addr) >> 4) & 3;
+      case 3: return (memory::cartram.read(addr) >> 6) & 3;
+    }
+  }
+}
+
+void BitmapRAM::write(unsigned addr, uint8 data) {
+  sa1.synchronize_cpu();
+
+  if(sa1.mmio.bbf == 0) {
+    //4bpp
+    unsigned shift = addr & 1;
+    addr = (addr >> 1) & (memory::cartram.size() - 1);
+    switch(shift) { default:
+      case 0: data = (memory::cartram.read(addr) & 0xf0) | ((data & 15) << 0); break;
+      case 1: data = (memory::cartram.read(addr) & 0x0f) | ((data & 15) << 4); break;
+    }
+  } else {
+    //2bpp
+    unsigned shift = addr & 3;
+    addr = (addr >> 2) & (memory::cartram.size() - 1);
+    switch(shift) { default:
+      case 0: data = (memory::cartram.read(addr) & 0xfc) | ((data &  3) << 0); break;
+      case 1: data = (memory::cartram.read(addr) & 0xf3) | ((data &  3) << 2); break;
+      case 2: data = (memory::cartram.read(addr) & 0xcf) | ((data &  3) << 4); break;
+      case 3: data = (memory::cartram.read(addr) & 0x3f) | ((data &  3) << 6); break;
+    }
+  }
+
+  memory::cartram.write(addr, data);
+}
+
+#endif

asnes/chip/sa1/bus/bus.hpp

@@ -0,0 +1,55 @@
+struct VBRBus : Bus {
+  void init();
+};
+
+struct SA1Bus : Bus {
+  void init();
+};
+
+struct VSPROM : Memory {
+  unsigned size() const;
+  alwaysinline uint8 read(unsigned);
+  alwaysinline void write(unsigned, uint8);
+};
+
+struct CPUIRAM : Memory {
+  unsigned size() const;
+  alwaysinline uint8 read(unsigned);
+  alwaysinline void write(unsigned, uint8);
+};
+
+struct SA1IRAM : Memory {
+  unsigned size() const;
+  alwaysinline uint8 read(unsigned);
+  alwaysinline void write(unsigned, uint8);
+};
+
+struct SA1BWRAM : Memory {
+  unsigned size() const;
+  alwaysinline uint8 read(unsigned);
+  alwaysinline void write(unsigned, uint8);
+};
+
+struct CC1BWRAM : Memory {
+  unsigned size() const;
+  alwaysinline uint8 read(unsigned);
+  alwaysinline void write(unsigned, uint8);
+  bool dma;
+};
+
+struct BitmapRAM : Memory {
+  unsigned size() const;
+  alwaysinline uint8 read(unsigned);
+  alwaysinline void write(unsigned, uint8);
+};
+
+namespace memory {
+  extern StaticRAM iram;
+
+  extern VSPROM vsprom;
+  extern CPUIRAM cpuiram;
+  extern SA1IRAM sa1iram;
+  extern SA1BWRAM sa1bwram;
+  extern CC1BWRAM cc1bwram;
+  extern BitmapRAM bitmapram;
+};

asnes/chip/sa1/dma/dma.cpp

@@ -0,0 +1,139 @@
+#ifdef SA1_CPP
+
+//====================
+//direct data transfer
+//====================
+
+void SA1::dma_normal() {
+  while(mmio.dtc--) {
+    uint8 data = regs.mdr;
+    uint32 dsa = mmio.dsa++;
+    uint32 dda = mmio.dda++;
+
+    //source and destination cannot be the same
+    if(mmio.sd == DMA::SourceBWRAM && mmio.dd == DMA::DestBWRAM) continue;
+    if(mmio.sd == DMA::SourceIRAM  && mmio.dd == DMA::DestIRAM ) continue;
+
+    switch(mmio.sd) {
+      case DMA::SourceROM: {
+        if((dsa & 0x408000) == 0x008000 || (dsa & 0xc00000) == 0xc00000) {
+          data = sa1bus.read(dsa);
+        }
+      } break;
+
+      case DMA::SourceBWRAM: {
+        if((dsa & 0x40e000) == 0x006000 || (dsa & 0xf00000) == 0x400000) {
+          data = sa1bus.read(dsa);
+        }
+      } break;
+
+      case DMA::SourceIRAM: {
+        data = memory::iram.read(dsa & 0x07ff);
+      } break;
+    }
+
+    switch(mmio.dd) {
+      case DMA::DestBWRAM: {
+        if((dda & 0x40e000) == 0x006000 || (dda & 0xf00000) == 0x400000) {
+          sa1bus.write(dda, data);
+        }
+      } break;
+
+      case DMA::DestIRAM: {
+        memory::iram.write(dda & 0x07ff, data);
+      } break;
+    }
+  }
+
+  mmio.dma_irqfl = true;
+  if(mmio.dma_irqen) mmio.dma_irqcl = 0;
+}
+
+//((byte & 6) << 3) + (byte & 1) explanation:
+//transforms a byte index (0-7) into a planar index:
+//result[] = {  0,  1, 16, 17, 32, 33, 48, 49 };
+//works for 2bpp, 4bpp and 8bpp modes
+
+//===========================
+//type-1 character conversion
+//===========================
+
+void SA1::dma_cc1() {
+  memory::cc1bwram.dma = true;
+  mmio.chdma_irqfl = true;
+  if(mmio.chdma_irqen) {
+    mmio.chdma_irqcl = 0;
+    cpu.regs.irq = 1;
+  }
+}
+
+uint8 SA1::dma_cc1_read(unsigned addr) {
+  //16 bytes/char (2bpp); 32 bytes/char (4bpp); 64 bytes/char (8bpp)
+  unsigned charmask = (1 << (6 - mmio.dmacb)) - 1;
+
+  if((addr & charmask) == 0) {
+    //buffer next character to I-RAM
+    unsigned bpp = 2 << (2 - mmio.dmacb);
+    unsigned bpl = (8 << mmio.dmasize) >> mmio.dmacb;
+    unsigned bwmask = memory::cartram.size() - 1;
+    unsigned tile = ((addr - mmio.dsa) & bwmask) >> (6 - mmio.dmacb);
+    unsigned ty = (tile >> mmio.dmasize);
+    unsigned tx = tile & ((1 << mmio.dmasize) - 1);
+    unsigned bwaddr = mmio.dsa + ty * 8 * bpl + tx * bpp;
+
+    for(unsigned y = 0; y < 8; y++) {
+      uint64 data = 0;
+      for(unsigned byte = 0; byte < bpp; byte++) {
+        data |= (uint64)memory::cartram.read((bwaddr + byte) & bwmask) << (byte << 3);
+      }
+      bwaddr += bpl;
+
+      uint8 out[] = { 0, 0, 0, 0, 0, 0, 0, 0 };
+      for(unsigned x = 0; x < 8; x++) {
+        out[0] |= (data & 1) << (7 - x); data >>= 1;
+        out[1] |= (data & 1) << (7 - x); data >>= 1;
+        if(mmio.dmacb == 2) continue;
+        out[2] |= (data & 1) << (7 - x); data >>= 1;
+        out[3] |= (data & 1) << (7 - x); data >>= 1;
+        if(mmio.dmacb == 1) continue;
+        out[4] |= (data & 1) << (7 - x); data >>= 1;
+        out[5] |= (data & 1) << (7 - x); data >>= 1;
+        out[6] |= (data & 1) << (7 - x); data >>= 1;
+        out[7] |= (data & 1) << (7 - x); data >>= 1;
+      }
+
+      for(unsigned byte = 0; byte < bpp; byte++) {
+        unsigned p = mmio.dda + (y << 1) + ((byte & 6) << 3) + (byte & 1);
+        memory::iram.write(p & 0x07ff, out[byte]);
+      }
+    }
+  }
+
+  return memory::iram.read((mmio.dda + (addr & charmask)) & 0x07ff);
+}
+
+//===========================
+//type-2 character conversion
+//===========================
+
+void SA1::dma_cc2() {
+  //select register file index (0-7 or 8-15)
+  const uint8 *brf = &mmio.brf[(dma.line & 1) << 3];
+  unsigned bpp = 2 << (2 - mmio.dmacb);
+  unsigned addr = mmio.dda & 0x07ff;
+  addr &= ~((1 << (7 - mmio.dmacb)) - 1);
+  addr += (dma.line & 8) * bpp;
+  addr += (dma.line & 7) * 2;
+
+  for(unsigned byte = 0; byte < bpp; byte++) {
+    uint8 output = 0;
+    for(unsigned bit = 0; bit < 8; bit++) {
+      output |= ((brf[bit] >> byte) & 1) << (7 - bit);
+    }
+    memory::iram.write(addr + ((byte & 6) << 3) + (byte & 1), output);
+  }
+
+  dma.line = (dma.line + 1) & 15;
+}
+
+#endif

asnes/chip/sa1/dma/dma.hpp

@@ -0,0 +1,11 @@
+struct DMA {
+  enum CDEN { DmaNormal = 0, DmaCharConversion = 1 };
+  enum SD { SourceROM = 0, SourceBWRAM = 1, SourceIRAM = 2 };
+  enum DD { DestIRAM = 0, DestBWRAM = 1 };
+  unsigned line;
+} dma;
+
+void dma_normal();
+void dma_cc1();
+uint8 dma_cc1_read(unsigned addr);
+void dma_cc2();

asnes/chip/sa1/memory/memory.cpp

@@ -0,0 +1,24 @@
+#ifdef SA1_CPP
+
+//ROM, I-RAM and MMIO registers are accessed at ~10.74MHz (2 clock ticks)
+//BW-RAM is accessed at ~5.37MHz (4 clock ticks)
+//tick() == 2 clock ticks
+//note: bus conflict delays are not emulated at this time
+
+void SA1::op_io() {
+  tick();
+}
+
+uint8 SA1::op_read(unsigned addr) {
+  tick();
+  if(((addr & 0x40e000) == 0x006000) || ((addr & 0xd00000) == 0x400000)) tick();
+  return sa1bus.read(addr);
+}
+
+void SA1::op_write(unsigned addr, uint8 data) {
+  tick();
+  if(((addr & 0x40e000) == 0x006000) || ((addr & 0xd00000) == 0x400000)) tick();
+  sa1bus.write(addr, data);
+}
+
+#endif

asnes/chip/sa1/memory/memory.hpp

@@ -0,0 +1,5 @@
+alwaysinline void op_io();
+alwaysinline uint8 op_read(unsigned addr);
+alwaysinline void op_write(unsigned addr, uint8 data);
+
+uint8_t vbr_read(unsigned addr);

asnes/chip/sa1/mmio/mmio.cpp

@@ -0,0 +1,631 @@
+#ifdef SA1_CPP
+
+//BS-X flash carts, when present, are mapped to 0x400000+
+Memory& SA1::mmio_access(unsigned &addr) {
+  if(!memory::bsxflash.data()) return memory::vsprom;
+  if(addr < 0x400000) return memory::vsprom;
+  addr &= 0x3fffff;
+  return bsxflash;
+}
+
+//(CCNT) SA-1 control
+void SA1::mmio_w2200(uint8 data) {
+  if(mmio.sa1_resb && !(data & 0x80)) {
+    //reset SA-1 CPU
+    regs.pc.w = mmio.crv;
+    regs.pc.b = 0x00;
+  }
+
+  mmio.sa1_irq  = (data & 0x80);
+  mmio.sa1_rdyb = (data & 0x40);
+  mmio.sa1_resb = (data & 0x20);
+  mmio.sa1_nmi  = (data & 0x10);
+  mmio.smeg     = (data & 0x0f);
+
+  if(mmio.sa1_irq) {
+    mmio.sa1_irqfl = true;
+    if(mmio.sa1_irqen) mmio.sa1_irqcl = 0;
+  }
+
+  if(mmio.sa1_nmi) {
+    mmio.sa1_nmifl = true;
+    if(mmio.sa1_nmien) mmio.sa1_nmicl = 0;
+  }
+}
+
+//(SIE) S-CPU interrupt enable
+void SA1::mmio_w2201(uint8 data) {
+  if(!mmio.cpu_irqen && (data & 0x80)) {
+    if(mmio.cpu_irqfl) {
+      mmio.cpu_irqcl = 0;
+      cpu.regs.irq = 1;
+    }
+  }
+
+  if(!mmio.chdma_irqen && (data & 0x20)) {
+    if(mmio.chdma_irqfl) {
+      mmio.chdma_irqcl = 0;
+      cpu.regs.irq = 1;
+    }
+  }
+
+  mmio.cpu_irqen   = (data & 0x80);
+  mmio.chdma_irqen = (data & 0x20);
+}
+
+//(SIC) S-CPU interrupt clear
+void SA1::mmio_w2202(uint8 data) {
+  mmio.cpu_irqcl   = (data & 0x80);
+  mmio.chdma_irqcl = (data & 0x20);
+
+  if(mmio.cpu_irqcl  ) mmio.cpu_irqfl   = false;
+  if(mmio.chdma_irqcl) mmio.chdma_irqfl = false;
+
+  if(!mmio.cpu_irqfl && !mmio.chdma_irqfl) cpu.regs.irq = 0;
+}
+
+//(CRV) SA-1 reset vector
+void SA1::mmio_w2203(uint8 data) { mmio.crv = (mmio.crv & 0xff00) | data; }
+void SA1::mmio_w2204(uint8 data) { mmio.crv = (data << 8) | (mmio.crv & 0xff); }
+
+//(CNV) SA-1 NMI vector
+void SA1::mmio_w2205(uint8 data) { mmio.cnv = (mmio.cnv & 0xff00) | data; }
+void SA1::mmio_w2206(uint8 data) { mmio.cnv = (data << 8) | (mmio.cnv & 0xff); }
+
+//(CIV) SA-1 IRQ vector
+void SA1::mmio_w2207(uint8 data) { mmio.civ = (mmio.civ & 0xff00) | data; }
+void SA1::mmio_w2208(uint8 data) { mmio.civ = (data << 8) | (mmio.civ & 0xff); }
+
+//(SCNT) S-CPU control
+void SA1::mmio_w2209(uint8 data) {
+  mmio.cpu_irq  = (data & 0x80);
+  mmio.cpu_ivsw = (data & 0x40);
+  mmio.cpu_nvsw = (data & 0x10);
+  mmio.cmeg     = (data & 0x0f);
+
+  if(mmio.cpu_irq) {
+    mmio.cpu_irqfl = true;
+    if(mmio.cpu_irqen) {
+      mmio.cpu_irqcl = 0;
+      cpu.regs.irq = 1;
+    }
+  }
+}
+
+//(CIE) SA-1 interrupt enable
+void SA1::mmio_w220a(uint8 data) {
+  if(!mmio.sa1_irqen   && (data & 0x80) && mmio.sa1_irqfl  ) mmio.sa1_irqcl   = 0;
+  if(!mmio.timer_irqen && (data & 0x40) && mmio.timer_irqfl) mmio.timer_irqcl = 0;
+  if(!mmio.dma_irqen   && (data & 0x20) && mmio.dma_irqfl  ) mmio.dma_irqcl   = 0;
+  if(!mmio.sa1_nmien   && (data & 0x10) && mmio.sa1_nmifl  ) mmio.sa1_nmicl   = 0;
+
+  mmio.sa1_irqen   = (data & 0x80);
+  mmio.timer_irqen = (data & 0x40);
+  mmio.dma_irqen   = (data & 0x20);
+  mmio.sa1_nmien   = (data & 0x10);
+}
+
+//(CIC) SA-1 interrupt clear
+void SA1::mmio_w220b(uint8 data) {
+  mmio.sa1_irqcl   = (data & 0x80);
+  mmio.timer_irqcl = (data & 0x40);
+  mmio.dma_irqcl   = (data & 0x20);
+  mmio.sa1_nmicl   = (data & 0x10);
+
+  if(mmio.sa1_irqcl)   mmio.sa1_irqfl   = false;
+  if(mmio.timer_irqcl) mmio.timer_irqfl = false;
+  if(mmio.dma_irqcl)   mmio.dma_irqfl   = false;
+  if(mmio.sa1_nmicl)   mmio.sa1_nmifl   = false;
+}
+
+//(SNV) S-CPU NMI vector
+void SA1::mmio_w220c(uint8 data) { mmio.snv = (mmio.snv & 0xff00) | data;      }
+void SA1::mmio_w220d(uint8 data) { mmio.snv = (data << 8) | (mmio.snv & 0xff); }
+
+//(SIV) S-CPU IRQ vector
+void SA1::mmio_w220e(uint8 data) { mmio.siv = (mmio.siv & 0xff00) | data;      }
+void SA1::mmio_w220f(uint8 data) { mmio.siv = (data << 8) | (mmio.siv & 0xff); }
+
+//(TMC) H/V timer control
+void SA1::mmio_w2210(uint8 data) {
+  mmio.hvselb = (data & 0x80);
+  mmio.ven    = (data & 0x02);
+  mmio.hen    = (data & 0x01);
+}
+
+//(CTR) SA-1 timer restart
+void SA1::mmio_w2211(uint8 data) {
+  status.vcounter = 0;
+  status.hcounter = 0;
+}
+
+//(HCNT) H-count
+void SA1::mmio_w2212(uint8 data) { mmio.hcnt = (mmio.hcnt & 0xff00) | (data << 0); }
+void SA1::mmio_w2213(uint8 data) { mmio.hcnt = (mmio.hcnt & 0x00ff) | (data << 8); }
+
+//(VCNT) V-count
+void SA1::mmio_w2214(uint8 data) { mmio.vcnt = (mmio.vcnt & 0xff00) | (data << 0); }
+void SA1::mmio_w2215(uint8 data) { mmio.vcnt = (mmio.vcnt & 0x00ff) | (data << 8); }
+
+//(CXB) Super MMC bank C
+void SA1::mmio_w2220(uint8 data) {
+  mmio.cbmode = (data & 0x80);
+  mmio.cb     = (data & 0x07);
+
+  unsigned addr = mmio.cb << 20;
+  Memory &access = mmio_access(addr);
+
+  if(mmio.cbmode == 0) {
+       bus.map(Bus::MapMode::Linear, 0x00, 0x1f, 0x8000, 0xffff, memory::vsprom, 0x000000);
+    sa1bus.map(Bus::MapMode::Linear, 0x00, 0x1f, 0x8000, 0xffff, memory::vsprom, 0x000000);
+  } else {
+       bus.map(Bus::MapMode::Linear, 0x00, 0x1f, 0x8000, 0xffff, access, addr);
+    sa1bus.map(Bus::MapMode::Linear, 0x00, 0x1f, 0x8000, 0xffff, access, addr);
+  }
+
+     bus.map(Bus::MapMode::Linear, 0xc0, 0xcf, 0x0000, 0xffff, access, addr);
+  sa1bus.map(Bus::MapMode::Linear, 0xc0, 0xcf, 0x0000, 0xffff, access, addr);
+}
+
+//(DXB) Super MMC bank D
+void SA1::mmio_w2221(uint8 data) {
+  mmio.dbmode = (data & 0x80);
+  mmio.db     = (data & 0x07);
+
+  unsigned addr = mmio.db << 20;
+  Memory &access = mmio_access(addr);
+
+  if(mmio.dbmode == 0) {
+       bus.map(Bus::MapMode::Linear, 0x20, 0x3f, 0x8000, 0xffff, memory::vsprom, 0x100000);
+    sa1bus.map(Bus::MapMode::Linear, 0x20, 0x3f, 0x8000, 0xffff, memory::vsprom, 0x100000);
+  } else {
+       bus.map(Bus::MapMode::Linear, 0x20, 0x3f, 0x8000, 0xffff, access, addr);
+    sa1bus.map(Bus::MapMode::Linear, 0x20, 0x3f, 0x8000, 0xffff, access, addr);
+  }
+
+     bus.map(Bus::MapMode::Linear, 0xd0, 0xdf, 0x0000, 0xffff, access, addr);
+  sa1bus.map(Bus::MapMode::Linear, 0xd0, 0xdf, 0x0000, 0xffff, access, addr);
+}
+
+//(EXB) Super MMC bank E
+void SA1::mmio_w2222(uint8 data) {
+  mmio.ebmode = (data & 0x80);
+  mmio.eb     = (data & 0x07);
+
+  unsigned addr = mmio.eb << 20;
+  Memory &access = mmio_access(addr);
+
+  if(mmio.ebmode == 0) {
+       bus.map(Bus::MapMode::Linear, 0x80, 0x9f, 0x8000, 0xffff, memory::vsprom, 0x200000);
+    sa1bus.map(Bus::MapMode::Linear, 0x80, 0x9f, 0x8000, 0xffff, memory::vsprom, 0x200000);
+  } else {
+       bus.map(Bus::MapMode::Linear, 0x80, 0x9f, 0x8000, 0xffff, access, addr);
+    sa1bus.map(Bus::MapMode::Linear, 0x80, 0x9f, 0x8000, 0xffff, access, addr);
+  }
+
+     bus.map(Bus::MapMode::Linear, 0xe0, 0xef, 0x0000, 0xffff, access, addr);
+  sa1bus.map(Bus::MapMode::Linear, 0xe0, 0xef, 0x0000, 0xffff, access, addr);
+}
+
+//(FXB) Super MMC bank F
+void SA1::mmio_w2223(uint8 data) {
+  mmio.fbmode = (data & 0x80);
+  mmio.fb     = (data & 0x07);
+
+  unsigned addr = mmio.fb << 20;
+  Memory &access = mmio_access(addr);
+
+  if(mmio.fbmode == 0) {
+       bus.map(Bus::MapMode::Linear, 0xa0, 0xbf, 0x8000, 0xffff, memory::vsprom, 0x300000);
+    sa1bus.map(Bus::MapMode::Linear, 0xa0, 0xbf, 0x8000, 0xffff, memory::vsprom, 0x300000);
+  } else {
+       bus.map(Bus::MapMode::Linear, 0xa0, 0xbf, 0x8000, 0xffff, access, addr);
+    sa1bus.map(Bus::MapMode::Linear, 0xa0, 0xbf, 0x8000, 0xffff, access, addr);
+  }
+
+     bus.map(Bus::MapMode::Linear, 0xf0, 0xff, 0x0000, 0xffff, access, addr);
+  sa1bus.map(Bus::MapMode::Linear, 0xf0, 0xff, 0x0000, 0xffff, access, addr);
+}
+
+//(BMAPS) S-CPU BW-RAM address mapping
+void SA1::mmio_w2224(uint8 data) {
+  mmio.sbm = (data & 0x1f);
+
+  bus.map(Bus::MapMode::Linear, 0x00, 0x3f, 0x6000, 0x7fff, memory::cc1bwram, mmio.sbm * 0x2000, 0x2000);
+  bus.map(Bus::MapMode::Linear, 0x80, 0xbf, 0x6000, 0x7fff, memory::cc1bwram, mmio.sbm * 0x2000, 0x2000);
+}
+
+//(BMAP) SA-1 BW-RAM address mapping
+void SA1::mmio_w2225(uint8 data) {
+  mmio.sw46 = (data & 0x80);
+  mmio.cbm  = (data & 0x7f);
+
+  if(mmio.sw46 == 0) {
+    //$[40-43]:[0000-ffff] x  32 projection
+    sa1bus.map(Bus::MapMode::Linear, 0x00, 0x3f, 0x6000, 0x7fff, memory::sa1bwram, (mmio.cbm & 0x1f) * 0x2000, 0x2000);
+    sa1bus.map(Bus::MapMode::Linear, 0x80, 0xbf, 0x6000, 0x7fff, memory::sa1bwram, (mmio.cbm & 0x1f) * 0x2000, 0x2000);
+  } else {
+    //$[60-6f]:[0000-ffff] x 128 projection
+    sa1bus.map(Bus::MapMode::Linear, 0x00, 0x3f, 0x6000, 0x7fff, memory::bitmapram, mmio.cbm * 0x2000, 0x2000);
+    sa1bus.map(Bus::MapMode::Linear, 0x80, 0xbf, 0x6000, 0x7fff, memory::bitmapram, mmio.cbm * 0x2000, 0x2000);
+  }
+}
+
+//(SWBE) S-CPU BW-RAM write enable
+void SA1::mmio_w2226(uint8 data) {
+  mmio.swen = (data & 0x80);
+}
+
+//(CWBE) SA-1 BW-RAM write enable
+void SA1::mmio_w2227(uint8 data) {
+  mmio.cwen = (data & 0x80);
+}
+
+//(BWPA) BW-RAM write-protected area
+void SA1::mmio_w2228(uint8 data) {
+  mmio.bwp = (data & 0x0f);
+}
+
+//(SIWP) S-CPU I-RAM write protection
+void SA1::mmio_w2229(uint8 data) {
+  mmio.siwp = data;
+}
+
+//(CIWP) SA-1 I-RAM write protection
+void SA1::mmio_w222a(uint8 data) {
+  mmio.ciwp = data;
+}
+
+//(DCNT) DMA control
+void SA1::mmio_w2230(uint8 data) {
+  mmio.dmaen = (data & 0x80);
+  mmio.dprio = (data & 0x40);
+  mmio.cden  = (data & 0x20);
+  mmio.cdsel = (data & 0x10);
+  mmio.dd    = (data & 0x04);
+  mmio.sd    = (data & 0x03);
+
+  if(mmio.dmaen == 0) dma.line = 0;
+}
+
+//(CDMA) character conversion DMA parameters
+void SA1::mmio_w2231(uint8 data) {
+  mmio.chdend  = (data & 0x80);
+  mmio.dmasize = (data >> 2) & 7;
+  mmio.dmacb   = (data & 0x03);
+
+  if(mmio.chdend) memory::cc1bwram.dma = false;
+  if(mmio.dmasize > 5) mmio.dmasize = 5;
+  if(mmio.dmacb   > 2) mmio.dmacb   = 2;
+}
+
+//(SDA) DMA source device start address
+void SA1::mmio_w2232(uint8 data) { mmio.dsa = (mmio.dsa & 0xffff00) | (data <<  0); }
+void SA1::mmio_w2233(uint8 data) { mmio.dsa = (mmio.dsa & 0xff00ff) | (data <<  8); }
+void SA1::mmio_w2234(uint8 data) { mmio.dsa = (mmio.dsa & 0x00ffff) | (data << 16); }
+
+//(DDA) DMA destination start address
+void SA1::mmio_w2235(uint8 data) {
+  mmio.dda = (mmio.dda & 0xffff00) | (data <<  0);
+}
+
+void SA1::mmio_w2236(uint8 data) {
+  mmio.dda = (mmio.dda & 0xff00ff) | (data <<  8);
+
+  if(mmio.dmaen == true) {
+    if(mmio.cden == 0 && mmio.dd == DMA::DestIRAM) {
+      dma_normal();
+    } else if(mmio.cden == 1 && mmio.cdsel == 1) {
+      dma_cc1();
+    }
+  }
+}
+
+void SA1::mmio_w2237(uint8 data) {
+  mmio.dda = (mmio.dda & 0x00ffff) | (data << 16);
+
+  if(mmio.dmaen == true) {
+    if(mmio.cden == 0 && mmio.dd == DMA::DestBWRAM) {
+      dma_normal();
+    }
+  }
+}
+
+//(DTC) DMA terminal counter
+void SA1::mmio_w2238(uint8 data) { mmio.dtc = (mmio.dtc & 0xff00) | (data << 0); }
+void SA1::mmio_w2239(uint8 data) { mmio.dtc = (mmio.dtc & 0x00ff) | (data << 8); }
+
+//(BBF) BW-RAM bitmap format
+void SA1::mmio_w223f(uint8 data) {
+  mmio.bbf = (data & 0x80);
+}
+
+//(BRF) bitmap register files
+void SA1::mmio_w2240(uint8 data) { mmio.brf[ 0] = data; }
+void SA1::mmio_w2241(uint8 data) { mmio.brf[ 1] = data; }
+void SA1::mmio_w2242(uint8 data) { mmio.brf[ 2] = data; }
+void SA1::mmio_w2243(uint8 data) { mmio.brf[ 3] = data; }
+void SA1::mmio_w2244(uint8 data) { mmio.brf[ 4] = data; }
+void SA1::mmio_w2245(uint8 data) { mmio.brf[ 5] = data; }
+void SA1::mmio_w2246(uint8 data) { mmio.brf[ 6] = data; }
+void SA1::mmio_w2247(uint8 data) { mmio.brf[ 7] = data;
+  if(mmio.dmaen == true) {
+    if(mmio.cden == 1 && mmio.cdsel == 0) {
+      dma_cc2();
+    }
+  }
+}
+
+void SA1::mmio_w2248(uint8 data) { mmio.brf[ 8] = data; }
+void SA1::mmio_w2249(uint8 data) { mmio.brf[ 9] = data; }
+void SA1::mmio_w224a(uint8 data) { mmio.brf[10] = data; }
+void SA1::mmio_w224b(uint8 data) { mmio.brf[11] = data; }
+void SA1::mmio_w224c(uint8 data) { mmio.brf[12] = data; }
+void SA1::mmio_w224d(uint8 data) { mmio.brf[13] = data; }
+void SA1::mmio_w224e(uint8 data) { mmio.brf[14] = data; }
+void SA1::mmio_w224f(uint8 data) { mmio.brf[15] = data;
+  if(mmio.dmaen == true) {
+    if(mmio.cden == 1 && mmio.cdsel == 0) {
+      dma_cc2();
+    }
+  }
+}
+
+//(MCNT) arithmetic control
+void SA1::mmio_w2250(uint8 data) {
+  mmio.acm = (data & 0x02);
+  mmio.md  = (data & 0x01);
+
+  if(mmio.acm) mmio.mr = 0;
+}
+
+//(MAL) multiplicand / dividend low
+void SA1::mmio_w2251(uint8 data) {
+  mmio.ma = (mmio.ma & 0xff00) | data;
+}
+
+//(MAH) multiplicand / dividend high
+void SA1::mmio_w2252(uint8 data) {
+  mmio.ma = (data << 8) | (mmio.ma & 0x00ff);
+}
+
+//(MBL) multiplier / divisor low
+void SA1::mmio_w2253(uint8 data) {
+  mmio.mb = (mmio.mb & 0xff00) | data;
+}
+
+//(MBH) multiplier / divisor high
+//multiplication / cumulative sum only resets MB
+//division resets both MA and MB
+void SA1::mmio_w2254(uint8 data) {
+  mmio.mb = (data << 8) | (mmio.mb & 0x00ff);
+
+  if(mmio.acm == 0) {
+    if(mmio.md == 0) {
+      //signed multiplication
+      mmio.mr = (int16)mmio.ma * (int16)mmio.mb;
+      mmio.mb = 0;
+    } else {
+      //unsigned division
+      if(mmio.mb == 0) {
+        mmio.mr = 0;
+      } else {
+        int16  quotient  = (int16)mmio.ma / (uint16)mmio.mb;
+        uint16 remainder = (int16)mmio.ma % (uint16)mmio.mb;
+        mmio.mr = (remainder << 16) | quotient;
+      }
+      mmio.ma = 0;
+      mmio.mb = 0;
+    }
+  } else {
+    //sigma (accumulative multiplication)
+    mmio.mr += (int16)mmio.ma * (int16)mmio.mb;
+    mmio.overflow = (mmio.mr >= (1ULL << 40));
+    mmio.mr &= (1ULL << 40) - 1;
+    mmio.mb = 0;
+  }
+}
+
+//(VBD) variable-length bit processing
+void SA1::mmio_w2258(uint8 data) {
+  mmio.hl = (data & 0x80);
+  mmio.vb = (data & 0x0f);
+  if(mmio.vb == 0) mmio.vb = 16;
+
+  if(mmio.hl == 0) {
+    //fixed mode
+    mmio.vbit += mmio.vb;
+    mmio.va += (mmio.vbit >> 3);
+    mmio.vbit &= 7;
+  }
+}
+
+//(VDA) variable-length bit game pak ROM start address
+void SA1::mmio_w2259(uint8 data) { mmio.va = (mmio.va & 0xffff00) | (data <<  0); }
+void SA1::mmio_w225a(uint8 data) { mmio.va = (mmio.va & 0xff00ff) | (data <<  8); }
+void SA1::mmio_w225b(uint8 data) { mmio.va = (mmio.va & 0x00ffff) | (data << 16); mmio.vbit = 0; }
+
+//(SFR) S-CPU flag read
+uint8 SA1::mmio_r2300() {
+  uint8 data;
+  data  = mmio.cpu_irqfl   << 7;
+  data |= mmio.cpu_ivsw    << 6;
+  data |= mmio.chdma_irqfl << 5;
+  data |= mmio.cpu_nvsw    << 4;
+  data |= mmio.cmeg;
+  return data;
+}
+
+//(CFR) SA-1 flag read
+uint8 SA1::mmio_r2301() {
+  uint8 data;
+  data  = mmio.sa1_irqfl   << 7;
+  data |= mmio.timer_irqfl << 6;
+  data |= mmio.dma_irqfl   << 5;
+  data |= mmio.sa1_nmifl   << 4;
+  data |= mmio.smeg;
+  return data;
+}
+
+//(HCR) hcounter read
+uint8 SA1::mmio_r2302() {
+  //latch counters
+  mmio.hcr = status.hcounter >> 2;
+  mmio.vcr = status.vcounter;
+                            return mmio.hcr >> 0; }
+uint8 SA1::mmio_r2303() { return mmio.hcr >> 8; }
+
+//(VCR) vcounter read
+uint8 SA1::mmio_r2304() { return mmio.vcr >> 0; }
+uint8 SA1::mmio_r2305() { return mmio.vcr >> 8; }
+
+//(MR) arithmetic result
+uint8 SA1::mmio_r2306() { return mmio.mr >>  0; }
+uint8 SA1::mmio_r2307() { return mmio.mr >>  8; }
+uint8 SA1::mmio_r2308() { return mmio.mr >> 16; }
+uint8 SA1::mmio_r2309() { return mmio.mr >> 24; }
+uint8 SA1::mmio_r230a() { return mmio.mr >> 32; }
+
+//(OF) arithmetic overflow flag
+uint8 SA1::mmio_r230b() { return mmio.overflow << 7; }
+
+//(VDPL) variable-length data read port low
+uint8 SA1::mmio_r230c() {
+  uint32 data = (vbrbus.read(mmio.va + 0) <<  0)
+              | (vbrbus.read(mmio.va + 1) <<  8)
+              | (vbrbus.read(mmio.va + 2) << 16);
+  data >>= mmio.vbit;
+  return data >> 0;
+}
+
+//(VDPH) variable-length data read port high
+uint8 SA1::mmio_r230d() {
+  uint32 data = (vbrbus.read(mmio.va + 0) <<  0)
+              | (vbrbus.read(mmio.va + 1) <<  8)
+              | (vbrbus.read(mmio.va + 2) << 16);
+  data >>= mmio.vbit;
+
+  if(mmio.hl == 1) {
+    //auto-increment mode
+    mmio.vbit += mmio.vb;
+    mmio.va += (mmio.vbit >> 3);
+    mmio.vbit &= 7;
+  }
+
+  return data >> 8;
+}
+
+//(VC) version code register
+uint8 SA1::mmio_r230e() {
+  return 0x01;  //true value unknown
+}
+
+uint8 SA1::mmio_read(unsigned addr) {
+  (co_active() == cpu.thread ? cpu.synchronize_coprocessor() : synchronize_cpu());
+  addr &= 0xffff;
+
+  switch(addr) {
+    case 0x2300: return mmio_r2300();
+    case 0x2301: return mmio_r2301();
+    case 0x2302: return mmio_r2302();
+    case 0x2303: return mmio_r2303();
+    case 0x2304: return mmio_r2304();
+    case 0x2305: return mmio_r2305();
+    case 0x2306: return mmio_r2306();
+    case 0x2307: return mmio_r2307();
+    case 0x2308: return mmio_r2308();
+    case 0x2309: return mmio_r2309();
+    case 0x230a: return mmio_r230a();
+    case 0x230b: return mmio_r230b();
+    case 0x230c: return mmio_r230c();
+    case 0x230d: return mmio_r230d();
+    case 0x230e: return mmio_r230e();
+  }
+
+  return 0x00;
+}
+
+void SA1::mmio_write(unsigned addr, uint8 data) {
+  (co_active() == cpu.thread ? cpu.synchronize_coprocessor() : synchronize_cpu());
+  addr &= 0xffff;
+
+  switch(addr) {
+    case 0x2200: return mmio_w2200(data);
+    case 0x2201: return mmio_w2201(data);
+    case 0x2202: return mmio_w2202(data);
+    case 0x2203: return mmio_w2203(data);
+    case 0x2204: return mmio_w2204(data);
+    case 0x2205: return mmio_w2205(data);
+    case 0x2206: return mmio_w2206(data);
+    case 0x2207: return mmio_w2207(data);
+    case 0x2208: return mmio_w2208(data);
+    case 0x2209: return mmio_w2209(data);
+    case 0x220a: return mmio_w220a(data);
+    case 0x220b: return mmio_w220b(data);
+    case 0x220c: return mmio_w220c(data);
+    case 0x220d: return mmio_w220d(data);
+    case 0x220e: return mmio_w220e(data);
+    case 0x220f: return mmio_w220f(data);
+
+    case 0x2210: return mmio_w2210(data);
+    case 0x2211: return mmio_w2211(data);
+    case 0x2212: return mmio_w2212(data);
+    case 0x2213: return mmio_w2213(data);
+    case 0x2214: return mmio_w2214(data);
+    case 0x2215: return mmio_w2215(data);
+
+    case 0x2220: return mmio_w2220(data);
+    case 0x2221: return mmio_w2221(data);
+    case 0x2222: return mmio_w2222(data);
+    case 0x2223: return mmio_w2223(data);
+    case 0x2224: return mmio_w2224(data);
+    case 0x2225: return mmio_w2225(data);
+    case 0x2226: return mmio_w2226(data);
+    case 0x2227: return mmio_w2227(data);
+    case 0x2228: return mmio_w2228(data);
+    case 0x2229: return mmio_w2229(data);
+    case 0x222a: return mmio_w222a(data);
+
+    case 0x2230: return mmio_w2230(data);
+    case 0x2231: return mmio_w2231(data);
+    case 0x2232: return mmio_w2232(data);
+    case 0x2233: return mmio_w2233(data);
+    case 0x2234: return mmio_w2234(data);
+    case 0x2235: return mmio_w2235(data);
+    case 0x2236: return mmio_w2236(data);
+    case 0x2237: return mmio_w2237(data);
+    case 0x2238: return mmio_w2238(data);
+    case 0x2239: return mmio_w2239(data);
+
+    case 0x223f: return mmio_w223f(data);
+    case 0x2240: return mmio_w2240(data);
+    case 0x2241: return mmio_w2241(data);
+    case 0x2242: return mmio_w2242(data);
+    case 0x2243: return mmio_w2243(data);
+    case 0x2244: return mmio_w2244(data);
+    case 0x2245: return mmio_w2245(data);
+    case 0x2246: return mmio_w2246(data);
+    case 0x2247: return mmio_w2247(data);
+    case 0x2248: return mmio_w2248(data);
+    case 0x2249: return mmio_w2249(data);
+    case 0x224a: return mmio_w224a(data);
+    case 0x224b: return mmio_w224b(data);
+    case 0x224c: return mmio_w224c(data);
+    case 0x224d: return mmio_w224d(data);
+    case 0x224e: return mmio_w224e(data);
+    case 0x224f: return mmio_w224f(data);
+
+    case 0x2250: return mmio_w2250(data);
+    case 0x2251: return mmio_w2251(data);
+    case 0x2252: return mmio_w2252(data);
+    case 0x2253: return mmio_w2253(data);
+    case 0x2254: return mmio_w2254(data);
+
+    case 0x2258: return mmio_w2258(data);
+    case 0x2259: return mmio_w2259(data);
+    case 0x225a: return mmio_w225a(data);
+    case 0x225b: return mmio_w225b(data);
+  }
+}
+
+#endif

asnes/chip/sa1/mmio/mmio.hpp

@@ -0,0 +1,256 @@
+uint8 mmio_read(unsigned addr);
+void mmio_write(unsigned addr, uint8 data);
+Memory& mmio_access(unsigned &addr);
+
+struct MMIO {
+  //$2200 CCNT
+  bool sa1_irq;
+  bool sa1_rdyb;
+  bool sa1_resb;
+  bool sa1_nmi;
+  uint8 smeg;
+
+  //$2201 SIE
+  bool cpu_irqen;
+  bool chdma_irqen;
+
+  //$2202 SIC
+  bool cpu_irqcl;
+  bool chdma_irqcl;
+
+  //$2203,$2204 CRV
+  uint16 crv;
+
+  //$2205,$2206 CNV
+  uint16 cnv;
+
+  //$2207,$2208 CIV
+  uint16 civ;
+
+  //$2209 SCNT
+  bool cpu_irq;
+  bool cpu_ivsw;
+  bool cpu_nvsw;
+  uint8 cmeg;
+
+  //$220a CIE
+  bool sa1_irqen;
+  bool timer_irqen;
+  bool dma_irqen;
+  bool sa1_nmien;
+
+  //$220b CIC
+  bool sa1_irqcl;
+  bool timer_irqcl;
+  bool dma_irqcl;
+  bool sa1_nmicl;
+
+  //$220c,$220d SNV
+  uint16 snv;
+
+  //$220e,$220f SIV
+  uint16 siv;
+
+  //$2210 TMC
+  bool hvselb;
+  bool ven;
+  bool hen;
+
+  //$2212,$2213
+  uint16 hcnt;
+
+  //$2214,$2215
+  uint16 vcnt;
+
+  //$2220 CXB
+  bool cbmode;
+  uint8 cb;
+
+  //$2221 DXB
+  bool dbmode;
+  uint8 db;
+
+  //$2222 EXB
+  bool ebmode;
+  uint8 eb;
+
+  //$2223 FXB
+  bool fbmode;
+  uint8 fb;
+
+  //$2224 BMAPS
+  uint8 sbm;
+
+  //$2225 BMAP
+  bool sw46;
+  uint8 cbm;
+
+  //$2226 SBWE
+  bool swen;
+
+  //$2227 CBWE
+  bool cwen;
+
+  //$2228 BWPA
+  uint8 bwp;
+
+  //$2229 SIWP
+  uint8 siwp;
+
+  //$222a CIWP
+  uint8 ciwp;
+
+  //$2230 DCNT
+  bool dmaen;
+  bool dprio;
+  bool cden;
+  bool cdsel;
+  bool dd;
+  uint8 sd;
+
+  //$2231 CDMA
+  bool chdend;
+  uint8 dmasize;
+  uint8 dmacb;
+
+  //$2232-$2234 SDA
+  uint32 dsa;
+
+  //$2235-$2237 DDA
+  uint32 dda;
+
+  //$2238,$2239 DTC
+  uint16 dtc;
+
+  //$223f BBF
+  bool bbf;
+
+  //$2240-224f BRF
+  uint8 brf[16];
+
+  //$2250 MCNT
+  bool acm;
+  bool md;
+
+  //$2251,$2252 MA
+  uint16 ma;
+
+  //$2253,$2254 MB
+  uint16 mb;
+
+  //$2258 VBD
+  bool hl;
+  uint8 vb;
+
+  //$2259-$225b VDA
+  uint32 va;
+  uint8 vbit;
+
+  //$2300 SFR
+  bool cpu_irqfl;
+  bool chdma_irqfl;
+
+  //$2301 CFR
+  bool sa1_irqfl;
+  bool timer_irqfl;
+  bool dma_irqfl;
+  bool sa1_nmifl;
+
+  //$2302,$2303 HCR
+  uint16 hcr;
+
+  //$2304,$2305 VCR
+  uint16 vcr;
+
+  //$2306-230a MR
+  uint64 mr;
+
+  //$230b OF
+  bool overflow;
+} mmio;
+
+void mmio_w2200(uint8);  //CCNT
+void mmio_w2201(uint8);  //SIE
+void mmio_w2202(uint8);  //SIC
+void mmio_w2203(uint8);  //CRVL
+void mmio_w2204(uint8);  //CRVH
+void mmio_w2205(uint8);  //CNVL
+void mmio_w2206(uint8);  //CNVH
+void mmio_w2207(uint8);  //CIVL
+void mmio_w2208(uint8);  //CIVH
+void mmio_w2209(uint8);  //SCNT
+void mmio_w220a(uint8);  //CIE
+void mmio_w220b(uint8);  //CIC
+void mmio_w220c(uint8);  //SNVL
+void mmio_w220d(uint8);  //SNVH
+void mmio_w220e(uint8);  //SIVL
+void mmio_w220f(uint8);  //SIVH
+void mmio_w2210(uint8);  //TMC
+void mmio_w2211(uint8);  //CTR
+void mmio_w2212(uint8);  //HCNTL
+void mmio_w2213(uint8);  //HCNTH
+void mmio_w2214(uint8);  //VCNTL
+void mmio_w2215(uint8);  //VCNTH
+void mmio_w2220(uint8);  //CXB
+void mmio_w2221(uint8);  //DXB
+void mmio_w2222(uint8);  //EXB
+void mmio_w2223(uint8);  //FXB
+void mmio_w2224(uint8);  //BMAPS
+void mmio_w2225(uint8);  //BMAP
+void mmio_w2226(uint8);  //SBWE
+void mmio_w2227(uint8);  //CBWE
+void mmio_w2228(uint8);  //BWPA
+void mmio_w2229(uint8);  //SIWP
+void mmio_w222a(uint8);  //CIWP
+void mmio_w2230(uint8);  //DCNT
+void mmio_w2231(uint8);  //CDMA
+void mmio_w2232(uint8);  //SDAL
+void mmio_w2233(uint8);  //SDAH
+void mmio_w2234(uint8);  //SDAB
+void mmio_w2235(uint8);  //DDAL
+void mmio_w2236(uint8);  //DDAH
+void mmio_w2237(uint8);  //DDAB
+void mmio_w2238(uint8);  //DTCL
+void mmio_w2239(uint8);  //DTCH
+void mmio_w223f(uint8);  //BBF
+void mmio_w2240(uint8);  //BRF0
+void mmio_w2241(uint8);  //BRF1
+void mmio_w2242(uint8);  //BRF2
+void mmio_w2243(uint8);  //BRF3
+void mmio_w2244(uint8);  //BRF4
+void mmio_w2245(uint8);  //BRF5
+void mmio_w2246(uint8);  //BRF6
+void mmio_w2247(uint8);  //BRF7
+void mmio_w2248(uint8);  //BRF8
+void mmio_w2249(uint8);  //BRF9
+void mmio_w224a(uint8);  //BRFA
+void mmio_w224b(uint8);  //BRFB
+void mmio_w224c(uint8);  //BRFC
+void mmio_w224d(uint8);  //BRFD
+void mmio_w224e(uint8);  //BRFE
+void mmio_w224f(uint8);  //BRFF
+void mmio_w2250(uint8);  //MCNT
+void mmio_w2251(uint8);  //MAL
+void mmio_w2252(uint8);  //MAH
+void mmio_w2253(uint8);  //MBL
+void mmio_w2254(uint8);  //MBH
+void mmio_w2258(uint8);  //VBD
+void mmio_w2259(uint8);  //VDAL
+void mmio_w225a(uint8);  //VDAH
+void mmio_w225b(uint8);  //VDAB
+
+uint8 mmio_r2300();  //SFR
+uint8 mmio_r2301();  //CFR
+uint8 mmio_r2302();  //HCRL
+uint8 mmio_r2303();  //HCRH
+uint8 mmio_r2304();  //VCRL
+uint8 mmio_r2305();  //VCRH
+uint8 mmio_r2306();  //MR [00-07]
+uint8 mmio_r2307();  //MR [08-15]
+uint8 mmio_r2308();  //MR [16-23]
+uint8 mmio_r2309();  //MR [24-31]
+uint8 mmio_r230a();  //MR [32-40]
+uint8 mmio_r230b();  //OF
+uint8 mmio_r230c();  //VDPL
+uint8 mmio_r230d();  //VDPH
+uint8 mmio_r230e();  //VC

asnes/chip/sa1/sa1.cpp

@@ -0,0 +1,329 @@
+#include <snes.hpp>
+
+#define SA1_CPP
+namespace SNES {
+
+SA1 sa1;
+
+#include "serialization.cpp"
+#include "bus/bus.cpp"
+#include "dma/dma.cpp"
+#include "memory/memory.cpp"
+#include "mmio/mmio.cpp"
+
+void SA1::Enter() { sa1.enter(); }
+
+void SA1::enter() {
+  while(true) {
+    if(scheduler.sync == Scheduler::SynchronizeMode::All) {
+      scheduler.exit(Scheduler::ExitReason::SynchronizeEvent);
+    }
+
+    if(mmio.sa1_rdyb || mmio.sa1_resb) {
+      //SA-1 co-processor is asleep
+      tick();
+      synchronize_cpu();
+      continue;
+    }
+
+    if(status.interrupt_pending) {
+      status.interrupt_pending = false;
+      interrupt(status.interrupt_vector);
+    }
+
+    (this->*opcode_table[op_readpc()])();
+  }
+}
+
+void SA1::last_cycle() {
+  if(mmio.sa1_nmi && !mmio.sa1_nmicl) {
+    status.interrupt_pending = true;
+    status.interrupt_vector  = mmio.cnv;
+    mmio.sa1_nmifl = true;
+    mmio.sa1_nmicl = 1;
+    regs.wai = false;
+  } else if(!regs.p.i) {
+    if(mmio.timer_irqen && !mmio.timer_irqcl) {
+      status.interrupt_pending = true;
+      status.interrupt_vector  = mmio.civ;
+      mmio.timer_irqfl = true;
+      regs.wai = false;
+    } else if(mmio.dma_irqen && !mmio.dma_irqcl) {
+      status.interrupt_pending = true;
+      status.interrupt_vector  = mmio.civ;
+      mmio.dma_irqfl = true;
+      regs.wai = false;
+    } else if(mmio.sa1_irq && !mmio.sa1_irqcl) {
+      status.interrupt_pending = true;
+      status.interrupt_vector  = mmio.civ;
+      mmio.sa1_irqfl = true;
+      regs.wai = false;
+    }
+  }
+}
+
+void SA1::interrupt(uint16 vector) {
+  SA1::op_read(regs.pc.d);
+  SA1::op_io();
+  if(!regs.e) op_writestack(regs.pc.b);
+  op_writestack(regs.pc.h);
+  op_writestack(regs.pc.l);
+  op_writestack(regs.e ? (regs.p & ~0x10) : regs.p);
+  regs.pc.w = vector;
+  regs.pc.b = 0x00;
+  regs.p.i  = 1;
+  regs.p.d  = 0;
+}
+
+bool SA1::interrupt_pending() {
+  return status.interrupt_pending;
+}
+
+void SA1::tick() {
+  step(2);
+  if(++status.tick_counter == 0) synchronize_cpu();
+
+  //adjust counters:
+  //note that internally, status counters are in clocks;
+  //whereas MMIO register counters are in dots (4 clocks = 1 dot)
+  if(mmio.hvselb == 0) {
+    //HV timer
+    status.hcounter += 2;
+    if(status.hcounter >= 1364) {
+      status.hcounter = 0;
+      if(++status.vcounter >= status.scanlines) status.vcounter = 0;
+    }
+  } else {
+    //linear timer
+    status.hcounter += 2;
+    status.vcounter += (status.hcounter >> 11);
+    status.hcounter &= 0x07ff;
+    status.vcounter &= 0x01ff;
+  }
+
+  //test counters for timer IRQ
+  switch((mmio.ven << 1) + (mmio.hen << 0)) {
+    case 0: break;
+    case 1: if(status.hcounter == (mmio.hcnt << 2)) trigger_irq(); break;
+    case 2: if(status.vcounter == mmio.vcnt && status.hcounter == 0) trigger_irq(); break;
+    case 3: if(status.vcounter == mmio.hcnt && status.hcounter == (mmio.hcnt << 2)) trigger_irq(); break;
+  }
+}
+
+void SA1::trigger_irq() {
+  mmio.timer_irqfl = true;
+  if(mmio.timer_irqen) mmio.timer_irqcl = 0;
+}
+
+void SA1::init() {
+}
+
+void SA1::enable() {
+}
+
+void SA1::power() {
+  regs.a = regs.x = regs.y = 0x0000;
+  regs.s = 0x01ff;
+  vbrbus.init();
+  sa1bus.init();
+  reset();
+}
+
+void SA1::reset() {
+  create(SA1::Enter, system.cpu_frequency());
+
+  memory::cc1bwram.dma = false;
+  for(unsigned addr = 0; addr < memory::iram.size(); addr++) {
+    memory::iram.write(addr, 0x00);
+  }
+
+  regs.pc.d = 0x000000;
+  regs.x.h  = 0x00;
+  regs.y.h  = 0x00;
+  regs.s.h  = 0x01;
+  regs.d    = 0x0000;
+  regs.db   = 0x00;
+  regs.p    = 0x34;
+  regs.e    = 1;
+  regs.mdr  = 0x00;
+  regs.wai  = false;
+  CPUcore::update_table();
+
+  status.tick_counter = 0;
+
+  status.interrupt_pending = false;
+  status.interrupt_vector  = 0x0000;
+
+  status.scanlines = (system.region() == System::Region::NTSC ? 262 : 312);
+  status.vcounter  = 0;
+  status.hcounter  = 0;
+
+  dma.line = 0;
+
+  //$2200 CCNT
+  mmio.sa1_irq  = false;
+  mmio.sa1_rdyb = false;
+  mmio.sa1_resb = true;
+  mmio.sa1_nmi  = false;
+  mmio.smeg     = 0;
+
+  //$2201 SIE
+  mmio.cpu_irqen   = false;
+  mmio.chdma_irqen = false;
+
+  //$2202 SIC
+  mmio.cpu_irqcl   = false;
+  mmio.chdma_irqcl = false;
+
+  //$2203,$2204 CRV
+  mmio.crv = 0x0000;
+
+  //$2205,$2206 CNV
+  mmio.cnv = 0x0000;
+
+  //$2207,$2208 CIV
+  mmio.civ = 0x0000;
+
+  //$2209 SCNT
+  mmio.cpu_irq  = false;
+  mmio.cpu_ivsw = false;
+  mmio.cpu_nvsw = false;
+  mmio.cmeg     = 0;
+
+  //$220a CIE
+  mmio.sa1_irqen   = false;
+  mmio.timer_irqen = false;
+  mmio.dma_irqen   = false;
+  mmio.sa1_nmien   = false;
+
+  //$220b CIC
+  mmio.sa1_irqcl   = false;
+  mmio.timer_irqcl = false;
+  mmio.dma_irqcl   = false;
+  mmio.sa1_nmicl   = false;
+
+  //$220c,$220d SNV
+  mmio.snv = 0x0000;
+
+  //$220e,$220f SIV
+  mmio.siv = 0x0000;
+
+  //$2210
+  mmio.hvselb = false;
+  mmio.ven    = false;
+  mmio.hen    = false;
+
+  //$2212,$2213 HCNT
+  mmio.hcnt = 0x0000;
+
+  //$2214,$2215 VCNT
+  mmio.vcnt = 0x0000;
+
+  //$2220-2223 CXB, DXB, EXB, FXB
+  mmio.cbmode = 0;
+  mmio.dbmode = 0;
+  mmio.ebmode = 0;
+  mmio.fbmode = 0;
+
+  mmio.cb = 0x00;
+  mmio.db = 0x01;
+  mmio.eb = 0x02;
+  mmio.fb = 0x03;
+
+  //$2224 BMAPS
+  mmio.sbm = 0x00;
+
+  //$2225 BMAP
+  mmio.sw46 = false;
+  mmio.cbm  = 0x00;
+
+  //$2226 SWBE
+  mmio.swen = false;
+
+  //$2227 CWBE
+  mmio.cwen = false;
+
+  //$2228 BWPA
+  mmio.bwp = 0x0f;
+
+  //$2229 SIWP
+  mmio.siwp = 0x00;
+
+  //$222a CIWP
+  mmio.ciwp = 0x00;
+
+  //$2230 DCNT
+  mmio.dmaen = false;
+  mmio.dprio = false;
+  mmio.cden  = false;
+  mmio.cdsel = false;
+  mmio.dd    = 0;
+  mmio.sd    = 0;
+
+  //$2231 CDMA
+  mmio.chdend  = false;
+  mmio.dmasize = 0;
+  mmio.dmacb   = 0;
+
+  //$2232-$2234 SDA
+  mmio.dsa = 0x000000;
+
+  //$2235-$2237 DDA
+  mmio.dda = 0x000000;
+
+  //$2238,$2239 DTC
+  mmio.dtc = 0x0000;
+
+  //$223f BBF
+  mmio.bbf = 0;
+
+  //$2240-$224f BRF
+  for(unsigned i = 0; i < 16; i++) {
+    mmio.brf[i] = 0x00;
+  }
+
+  //$2250 MCNT
+  mmio.acm = 0;
+  mmio.md  = 0;
+
+  //$2251,$2252 MA
+  mmio.ma = 0x0000;
+
+  //$2253,$2254 MB
+  mmio.mb = 0x0000;
+
+  //$2258 VBD
+  mmio.hl = false;
+  mmio.vb = 16;
+
+  //$2259-$225b
+  mmio.va   = 0x000000;
+  mmio.vbit = 0;
+
+  //$2300 SFR
+  mmio.cpu_irqfl   = false;
+  mmio.chdma_irqfl = false;
+
+  //$2301 CFR
+  mmio.sa1_irqfl   = false;
+  mmio.timer_irqfl = false;
+  mmio.dma_irqfl   = false;
+  mmio.sa1_nmifl   = false;
+
+  //$2302,$2303 HCR
+  mmio.hcr = 0x0000;
+
+  //$2304,$2305 VCR
+  mmio.vcr = 0x0000;
+
+  //$2306-$230a MR
+  mmio.mr = 0;
+
+  //$230b
+  mmio.overflow = false;
+}
+
+SA1::SA1() {
+}
+
+}

asnes/chip/sa1/sa1.hpp

@@ -0,0 +1,39 @@
+#include "bus/bus.hpp"
+
+class SA1 : public Coprocessor, public CPUcore, public MMIO {
+public:
+  #include "dma/dma.hpp"
+  #include "memory/memory.hpp"
+  #include "mmio/mmio.hpp"
+
+  struct Status {
+    uint8 tick_counter;
+
+    bool interrupt_pending;
+    uint16 interrupt_vector;
+
+    uint16 scanlines;
+    uint16 vcounter;
+    uint16 hcounter;
+  } status;
+
+  static void Enter();
+  void enter();
+  void interrupt(uint16 vector);
+  void tick();
+
+  alwaysinline void trigger_irq();
+  alwaysinline void last_cycle();
+  alwaysinline bool interrupt_pending();
+
+  void init();
+  void enable();
+  void power();
+  void reset();
+
+  void serialize(serializer&);
+  SA1();
+};
+
+extern SA1 sa1;
+extern SA1Bus sa1bus;

asnes/chip/sa1/serialization.cpp

@@ -0,0 +1,149 @@
+#ifdef SA1_CPP
+
+void SA1::serialize(serializer &s) {
+  Processor::serialize(s);
+  CPUcore::core_serialize(s);
+
+  //sa1.hpp
+  s.integer(status.tick_counter);
+
+  s.integer(status.interrupt_pending);
+  s.integer(status.interrupt_vector);
+
+  s.integer(status.scanlines);
+  s.integer(status.vcounter);
+  s.integer(status.hcounter);
+
+  //bus/bus.hpp
+  s.array(memory::iram.data(), memory::iram.size());
+
+  s.integer(memory::cc1bwram.dma);
+
+  //dma/dma.hpp
+  s.integer(dma.line);
+
+  //mmio/mmio.hpp
+  s.integer(mmio.sa1_irq);
+  s.integer(mmio.sa1_rdyb);
+  s.integer(mmio.sa1_resb);
+  s.integer(mmio.sa1_nmi);
+  s.integer(mmio.smeg);
+
+  s.integer(mmio.cpu_irqen);
+  s.integer(mmio.chdma_irqen);
+
+  s.integer(mmio.cpu_irqcl);
+  s.integer(mmio.chdma_irqcl);
+
+  s.integer(mmio.crv);
+
+  s.integer(mmio.cnv);
+
+  s.integer(mmio.civ);
+
+  s.integer(mmio.cpu_irq);
+  s.integer(mmio.cpu_ivsw);
+  s.integer(mmio.cpu_nvsw);
+  s.integer(mmio.cmeg);
+
+  s.integer(mmio.sa1_irqen);
+  s.integer(mmio.timer_irqen);
+  s.integer(mmio.dma_irqen);
+  s.integer(mmio.sa1_nmien);
+
+  s.integer(mmio.sa1_irqcl);
+  s.integer(mmio.timer_irqcl);
+  s.integer(mmio.dma_irqcl);
+  s.integer(mmio.sa1_nmicl);
+
+  s.integer(mmio.snv);
+
+  s.integer(mmio.siv);
+
+  s.integer(mmio.hvselb);
+  s.integer(mmio.ven);
+  s.integer(mmio.hen);
+
+  s.integer(mmio.hcnt);
+
+  s.integer(mmio.vcnt);
+
+  s.integer(mmio.cbmode);
+  s.integer(mmio.cb);
+
+  s.integer(mmio.dbmode);
+  s.integer(mmio.db);
+
+  s.integer(mmio.ebmode);
+  s.integer(mmio.eb);
+
+  s.integer(mmio.fbmode);
+  s.integer(mmio.fb);
+
+  s.integer(mmio.sbm);
+
+  s.integer(mmio.sw46);
+  s.integer(mmio.cbm);
+
+  s.integer(mmio.swen);
+
+  s.integer(mmio.cwen);
+
+  s.integer(mmio.bwp);
+
+  s.integer(mmio.siwp);
+
+  s.integer(mmio.ciwp);
+
+  s.integer(mmio.dmaen);
+  s.integer(mmio.dprio);
+  s.integer(mmio.cden);
+  s.integer(mmio.cdsel);
+  s.integer(mmio.dd);
+  s.integer(mmio.sd);
+
+  s.integer(mmio.chdend);
+  s.integer(mmio.dmasize);
+  s.integer(mmio.dmacb);
+
+  s.integer(mmio.dsa);
+
+  s.integer(mmio.dda);
+
+  s.integer(mmio.dtc);
+
+  s.integer(mmio.bbf);
+
+  s.array(mmio.brf);
+
+  s.integer(mmio.acm);
+  s.integer(mmio.md);
+
+  s.integer(mmio.ma);
+
+  s.integer(mmio.mb);
+
+  s.integer(mmio.hl);
+  s.integer(mmio.vb);
+
+  s.integer(mmio.va);
+  s.integer(mmio.vbit);
+
+  s.integer(mmio.cpu_irqfl);
+  s.integer(mmio.chdma_irqfl);
+
+  s.integer(mmio.sa1_irqfl);
+  s.integer(mmio.timer_irqfl);
+  s.integer(mmio.dma_irqfl);
+  s.integer(mmio.sa1_nmifl);
+
+  s.integer(mmio.hcr);
+
+  s.integer(mmio.vcr);
+
+  s.integer(mmio.mr);
+
+  s.integer(mmio.overflow);
+}
+
+#endif

asnes/chip/sdd1/sdd1.cpp

@@ -1,8 +1,11 @@
-#include <../base.hpp>
-#include <../cart/cart.hpp>
-#define SDD1_CPP
+#include <snes.hpp>
 
-#include "sdd1.hpp"
+#define SDD1_CPP
+namespace SNES {
+
+SDD1 sdd1;
+
+#include "serialization.cpp"
 #include "sdd1emu.cpp"
 
 void SDD1::init() {}
@@ -11,12 +14,7 @@ void SDD1::enable() {
   //hook S-CPU DMA MMIO registers to gather information for struct dma[];
   //buffer address and transfer size information for use in SDD1::read()
   for(unsigned i = 0x4300; i <= 0x437f; i++) {
-    cpu_mmio[i & 0x7f] = memory::mmio.get(i);
-    memory::mmio.map(i, *this);
-  }
-
-  //hook S-DD1 MMIO registers
-  for(unsigned i = 0x4800; i <= 0x4807; i++) {
+    cpu_mmio[i & 0x7f] = memory::mmio.mmio[i - 0x2000];
     memory::mmio.map(i, *this);
   }
 }
@@ -40,8 +38,6 @@ void SDD1::reset() {
   }
 
   buffer.ready = false;
-
-  bus.map(Bus::MapDirect, 0xc0, 0xff, 0x0000, 0xffff, *this);
 }
 
 uint8 SDD1::mmio_read(unsigned addr) {
@@ -52,10 +48,10 @@ uint8 SDD1::mmio_read(unsigned addr) {
   }
 
   switch(addr) {
-    case 0x4804: return (mmc[0] >> 20) & 7;
-    case 0x4805: return (mmc[1] >> 20) & 7;
-    case 0x4806: return (mmc[2] >> 20) & 7;
-    case 0x4807: return (mmc[3] >> 20) & 7;
+    case 0x4804: return mmc[0] >> 20;
+    case 0x4805: return mmc[1] >> 20;
+    case 0x4806: return mmc[2] >> 20;
+    case 0x4807: return mmc[3] >> 20;
   }
 
   return cpu.regs.mdr;
@@ -81,10 +77,10 @@ void SDD1::mmio_write(unsigned addr, uint8 data) {
     case 0x4800: sdd1_enable = data; break;
     case 0x4801: xfer_enable = data; break;
 
-    case 0x4804: mmc[0] = (data & 7) << 20; break;
-    case 0x4805: mmc[1] = (data & 7) << 20; break;
-    case 0x4806: mmc[2] = (data & 7) << 20; break;
-    case 0x4807: mmc[3] = (data & 7) << 20; break;
+    case 0x4804: mmc[0] = data << 20; break;
+    case 0x4805: mmc[1] = data << 20; break;
+    case 0x4806: mmc[2] = data << 20; break;
+    case 0x4807: mmc[3] = data << 20; break;
   }
 }
 
@@ -150,9 +146,9 @@ void SDD1::write(unsigned addr, uint8 data) {
 }
 
 SDD1::SDD1() {
-  buffer.data = new uint8[65536];
 }
 
 SDD1::~SDD1() {
-  delete[] buffer.data;
+}
+
 }

asnes/chip/sdd1/sdd1.hpp

@@ -13,6 +13,7 @@ public:
   uint8 read(unsigned addr);
   void write(unsigned addr, uint8 data);
 
+  void serialize(serializer&);
   SDD1();
   ~SDD1();
 
@@ -30,7 +31,7 @@ private:
 
   SDD1emu sdd1emu;
   struct {
-    uint8 *data;         //pointer to decompressed S-DD1 data (65536 bytes)
+    uint8 data[65536];   //pointer to decompressed S-DD1 data
     uint16 offset;       //read index into S-DD1 decompression buffer
     unsigned size;       //length of data buffer; reads decrement counter, set ready to false at 0
     bool ready;          //true when data[] is valid; false to invoke sdd1emu.decompress()

asnes/chip/sdd1/sdd1emu.cpp

@@ -30,6 +30,7 @@ understood.
 
 ************************************************************************/
 
+typedef uint8 bool8;
 #define SDD1_read(__addr) (sdd1.read(__addr))
 
 ////////////////////////////////////////////////////

asnes/chip/sdd1/sdd1emu.hpp

@@ -28,7 +28,7 @@ understood.
 
 ************************************************************************/
 
-typedef uint8_t bool8;
+#define bool8 uint8
 
 class SDD1_IM {  //Input Manager
 
@@ -160,3 +160,5 @@ class SDD1emu {
   SDD1_OL OL;
 
 };
+
+#undef bool8

asnes/chip/sdd1/serialization.cpp

@@ -0,0 +1,19 @@
+#ifdef SDD1_CPP
+
+void SDD1::serialize(serializer &s) {
+  s.integer(sdd1_enable);
+  s.integer(xfer_enable);
+  s.array(mmc);
+
+  for(unsigned n = 0; n < 8; n++) {
+    s.integer(dma[n].addr);
+    s.integer(dma[n].size);
+  }
+
+  s.array(buffer.data);
+  s.integer(buffer.offset);
+  s.integer(buffer.size);
+  s.integer(buffer.ready);
+}
+
+#endif

asnes/chip/serial/serial.cpp

@@ -0,0 +1,97 @@
+#include <snes.hpp>
+
+#define SERIAL_CPP
+namespace SNES {
+
+Serial serial;
+
+#include "serialization.cpp"
+
+static void snesserial_tick(unsigned clocks) { serial.add_clocks(clocks * 8); }
+static uint8 snesserial_read() { return serial.read(); }
+static void snesserial_write(uint8 data) { serial.write(data); }
+
+void Serial::Enter() { serial.enter(); }
+
+void Serial::enter() {
+  latch = 0;
+  add_clocks(256 * 8);  //warm-up
+  if(snesserial_main) snesserial_main(snesserial_tick, snesserial_read, snesserial_write);
+  while(true) add_clocks(frequency);  //snesserial_main() fallback
+}
+
+void Serial::add_clocks(unsigned clocks) {
+  step(clocks);
+  synchronize_cpu();
+}
+
+uint8 Serial::read() {
+  while(cpu.joylatch() == 0) add_clocks(1);
+  while(cpu.joylatch() == 1) add_clocks(1);
+  add_clocks(4);
+
+  uint8 data = 0;
+  for(unsigned i = 0; i < 8; i++) {
+    add_clocks(8);
+    data = (cpu.joylatch() << 7) | (data >> 1);
+  }
+
+  return data;
+}
+
+void Serial::write(uint8 data) {
+  latch = 1;
+  add_clocks(8);
+
+  for(unsigned i = 0; i < 8; i++) {
+    latch = (data & 1) ^ 1;
+    data >>= 1;
+    add_clocks(8);
+  }
+
+  latch = 0;
+  add_clocks(8);
+}
+
+uint8 Serial::mmio_read(unsigned addr) {
+  cpu.synchronize_coprocessor();
+  switch(addr & 1) { default:
+    case 0: return r4016->mmio_read(addr);
+    case 1: return r4017->mmio_read(addr);
+  }
+}
+
+void Serial::mmio_write(unsigned addr, uint8 data) {
+  cpu.synchronize_coprocessor();
+  switch(addr & 1) { default:
+    case 0: r4016->mmio_write(addr, data); break;
+    case 1: r4017->mmio_write(addr, data); break;
+  }
+}
+
+void Serial::init() {
+}
+
+void Serial::enable() {
+  r4016 = memory::mmio.mmio[0x4016 - 0x2000];
+  r4017 = memory::mmio.mmio[0x4017 - 0x2000];
+  memory::mmio.mmio[0x4016 - 0x2000] = this;
+  memory::mmio.mmio[0x4017 - 0x2000] = this;
+
+  if(opened()) close();
+  string name = notdir(cartridge.basename());
+  string path = dir(cartridge.basename());
+  if(open(name, path)) {
+    snesserial_main = sym("snesserial_main");
+  }
+}
+
+void Serial::power() {
+  reset();
+}
+
+void Serial::reset() {
+  create(Serial::Enter, cartridge.serial_baud_rate() * 8);
+}
+
+}

asnes/chip/serial/serial.hpp

@@ -0,0 +1,25 @@
+class Serial : public Coprocessor, public MMIO, public library, public property<Serial> {
+public:
+  static void Enter();
+  void enter();
+  void init();
+  void enable();
+  void power();
+  void reset();
+  void serialize(serializer&);
+
+  readonly<bool> latch;
+
+  void add_clocks(unsigned clocks);
+  uint8 read();
+  void write(uint8 data);
+
+  uint8 mmio_read(unsigned addr);
+  void mmio_write(unsigned addr, uint8 data);
+
+private:
+  MMIO *r4016, *r4017;
+  function<void (void (*)(unsigned), uint8_t (*)(), void (*)(uint8_t))> snesserial_main;
+};
+
+extern Serial serial;

asnes/chip/serial/serialization.cpp

@@ -0,0 +1,8 @@
+#ifdef SERIAL_CPP
+
+void Serial::serialize(serializer &s) {
+  Processor::serialize(s);
+  s.integer((bool&)latch);
+}
+
+#endif

asnes/chip/spc7110/decomp.cpp

@@ -24,9 +24,9 @@ void SPC7110Decomp::write(uint8 data) {
 }
 
 uint8 SPC7110Decomp::dataread() {
-  unsigned size = memory::cartrom.size() - 0x100000;
+  unsigned size = memory::cartrom.size() - cartridge.spc7110_data_rom_offset();
   while(decomp_offset >= size) decomp_offset -= size;
-  return memory::cartrom.read(0x100000 + decomp_offset++);
+  return memory::cartrom.read(cartridge.spc7110_data_rom_offset() + decomp_offset++);
 }
 
 void SPC7110Decomp::init(unsigned mode, unsigned offset, unsigned index) {

asnes/chip/spc7110/decomp.hpp

@@ -4,6 +4,7 @@ public:
   void init(unsigned mode, unsigned offset, unsigned index);
   void reset();
 
+  void serialize(serializer&);
   SPC7110Decomp();
   ~SPC7110Decomp();
 

asnes/chip/spc7110/serialization.cpp

@@ -0,0 +1,81 @@
+#ifdef SPC7110_CPP
+
+void SPC7110Decomp::serialize(serializer &s) {
+  s.integer(decomp_mode);
+  s.integer(decomp_offset);
+
+  s.array(decomp_buffer, decomp_buffer_size);
+  s.integer(decomp_buffer_rdoffset);
+  s.integer(decomp_buffer_wroffset);
+  s.integer(decomp_buffer_length);
+
+  for(unsigned n = 0; n < 32; n++) {
+    s.integer(context[n].index);
+    s.integer(context[n].invert);
+  }
+}
+
+void SPC7110::serialize(serializer &s) {
+  s.integer(r4801);
+  s.integer(r4802);
+  s.integer(r4803);
+  s.integer(r4804);
+  s.integer(r4805);
+  s.integer(r4806);
+  s.integer(r4807);
+  s.integer(r4808);
+  s.integer(r4809);
+  s.integer(r480a);
+  s.integer(r480b);
+  s.integer(r480c);
+  decomp.serialize(s);
+
+  s.integer(r4811);
+  s.integer(r4812);
+  s.integer(r4813);
+  s.integer(r4814);
+  s.integer(r4815);
+  s.integer(r4816);
+  s.integer(r4817);
+  s.integer(r4818);
+  s.integer(r481x);
+  s.integer(r4814_latch);
+  s.integer(r4815_latch);
+
+  s.integer(r4820);
+  s.integer(r4821);
+  s.integer(r4822);
+  s.integer(r4823);
+  s.integer(r4824);
+  s.integer(r4825);
+  s.integer(r4826);
+  s.integer(r4827);
+  s.integer(r4828);
+  s.integer(r4829);
+  s.integer(r482a);
+  s.integer(r482b);
+  s.integer(r482c);
+  s.integer(r482d);
+  s.integer(r482e);
+  s.integer(r482f);
+
+  s.integer(r4830);
+  s.integer(r4831);
+  s.integer(r4832);
+  s.integer(r4833);
+  s.integer(r4834);
+
+  s.integer(dx_offset);
+  s.integer(ex_offset);
+  s.integer(fx_offset);
+
+  s.integer(r4840);
+  s.integer(r4841);
+  s.integer(r4842);
+
+  s.integer(rtc_state);
+  s.integer(rtc_mode);
+  s.integer(rtc_index);
+}
+
+#endif

asnes/chip/spc7110/spc7110.cpp

@@ -1,18 +1,20 @@
-#include <../base.hpp>
-#include <../cart/cart.hpp>
-#define SPC7110_CPP
+#include <snes.hpp>
 
-#include "spc7110.hpp"
+#define SPC7110_CPP
+namespace SNES {
+
+SPC7110 spc7110;
+SPC7110MCU spc7110mcu;
+SPC7110DCU spc7110dcu;
+SPC7110RAM spc7110ram;
+
+#include "serialization.cpp"
 #include "decomp.cpp"
 
 const unsigned SPC7110::months[12] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
 
 void SPC7110::init() {}
-
-void SPC7110::enable() {
-  uint16_t limit = (cartridge.has_spc7110rtc() ? 0x4842 : 0x483f);
-  for(uint16_t i = 0x4800; i <= limit; i++) memory::mmio.map(i, *this);
-}
+void SPC7110::enable() {}
 
 void SPC7110::power() {
   reset();
@@ -82,9 +84,9 @@ void SPC7110::reset() {
 }
 
 unsigned SPC7110::datarom_addr(unsigned addr) {
-  unsigned size = memory::cartrom.size() - 0x100000;
+  unsigned size = memory::cartrom.size() - cartridge.spc7110_data_rom_offset();
   while(addr >= size) addr -= size;
-  return addr + 0x100000;
+  return cartridge.spc7110_data_rom_offset() + addr;
 }
 
 unsigned SPC7110::data_pointer()   { return r4811 + (r4812 << 8) + (r4813 << 16); }
@@ -532,17 +534,17 @@ void SPC7110::mmio_write(unsigned addr, uint8 data) {
 
     case 0x4831: {
       r4831 = data;
-      dx_offset = datarom_addr((data & 7) * 0x100000);
+      dx_offset = datarom_addr(data * 0x100000);
     } break;
 
     case 0x4832: {
       r4832 = data;
-      ex_offset = datarom_addr((data & 7) * 0x100000);
+      ex_offset = datarom_addr(data * 0x100000);
     } break;
 
     case 0x4833: {
       r4833 = data;
-      fx_offset = datarom_addr((data & 7) * 0x100000);
+      fx_offset = datarom_addr(data * 0x100000);
     } break;
 
     case 0x4834: r4834 = data; break;
@@ -629,44 +631,52 @@ void SPC7110::mmio_write(unsigned addr, uint8 data) {
   }
 }
 
-uint8 SPC7110::read(unsigned addr) {
-  //$[00-0f|80-8f]:[8000-ffff], $[c0-cf]:[0000-ffff] mapped directly to memory::cartrom
+SPC7110::SPC7110() {
+}
 
-  if((addr & 0xffe000) == 0x006000 || (addr & 0xffe000) == 0x306000) {
-    //$[00|30]:[6000-7fff]
-    return memory::cartram.read(addr & 0x1fff);
-  }
+//==========
+//SPC7110MCU
+//==========
 
-  if((addr & 0xff0000) == 0x500000) {
-    //$[50]:[0000-ffff]
-    return mmio_read(0x4800);
-  }
-
-  if((addr & 0xf00000) == 0xd00000) {
-    //$[d0-df]:[0000-ffff]
-    return memory::cartrom.read(dx_offset + (addr & 0x0fffff));
-  }
-
-  if((addr & 0xf00000) == 0xe00000) {
-    //$[e0-ef]:[0000-ffff]
-    return memory::cartrom.read(ex_offset + (addr & 0x0fffff));
-  }
-
-  if((addr & 0xf00000) == 0xf00000) {
-    //$[f0-ff]:[0000-ffff]
-    return memory::cartrom.read(fx_offset + (addr & 0x0fffff));
-  }
+unsigned SPC7110MCU::size() const {
+  return 0x300000;
+}
 
+uint8 SPC7110MCU::read(unsigned addr) {
+  if(addr <= 0xdfffff) return memory::cartrom.read(spc7110.dx_offset + (addr & 0x0fffff));
+  if(addr <= 0xefffff) return memory::cartrom.read(spc7110.ex_offset + (addr & 0x0fffff));
+  if(addr <= 0xffffff) return memory::cartrom.read(spc7110.fx_offset + (addr & 0x0fffff));
   return cpu.regs.mdr;
 }
 
-void SPC7110::write(unsigned addr, uint8 data) {
-  if((addr & 0xffe000) == 0x006000 || (addr & 0xffe000) == 0x306000) {
-    //$[00|30]:[6000-7fff]
-    if(r4830 & 0x80) memory::cartram.write(addr & 0x1fff, data);
-    return;
-  }
+void SPC7110MCU::write(unsigned addr, uint8 data) {
+}
+
+//==========
+//SPC7110DCU
+//==========
+
+uint8 SPC7110DCU::read(unsigned) {
+  return spc7110.mmio_read(0x4800);
+}
+
+void SPC7110DCU::write(unsigned, uint8) {
+}
+
+//==========
+//SPC7110RAM
+//==========
+
+unsigned SPC7110RAM::size() const {
+  return 0x2000;
+}
+
+uint8 SPC7110RAM::read(unsigned addr) {
+  return memory::cartram.read(addr & 0x1fff);
+}
+
+void SPC7110RAM::write(unsigned addr, uint8 data) {
+  if(spc7110.r4830 & 0x80) memory::cartram.write(addr & 0x1fff, data);
 }
 
-SPC7110::SPC7110() {
 }

asnes/chip/spc7110/spc7110.hpp

@@ -0,0 +1,159 @@
+/*****
+ * SPC7110 emulator - version 0.04 (2010-02-14)
+ * Copyright (c) 2008-2010, byuu and neviksti
+ *
+ * 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
+ * merchantibility 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.
+ *****/
+
+#include "decomp.hpp"
+
+class SPC7110 : public MMIO {
+public:
+  void init();
+  void enable();
+  void power();
+  void reset();
+
+  unsigned datarom_addr(unsigned addr);
+
+  unsigned data_pointer();
+  unsigned data_adjust();
+  unsigned data_increment();
+  void set_data_pointer(unsigned addr);
+  void set_data_adjust(unsigned addr);
+
+  void update_time(int offset = 0);
+  time_t create_time();
+
+  uint8 mmio_read(unsigned addr);
+  void mmio_write(unsigned addr, uint8 data);
+
+  //spc7110decomp
+  void decomp_init();
+  uint8 decomp_read();
+
+  void serialize(serializer&);
+  SPC7110();
+
+private:
+  //==================
+  //decompression unit
+  //==================
+  uint8 r4801;  //compression table low
+  uint8 r4802;  //compression table high
+  uint8 r4803;  //compression table bank
+  uint8 r4804;  //compression table index
+  uint8 r4805;  //decompression buffer index low
+  uint8 r4806;  //decompression buffer index high
+  uint8 r4807;  //???
+  uint8 r4808;  //???
+  uint8 r4809;  //compression length low
+  uint8 r480a;  //compression length high
+  uint8 r480b;  //decompression control register
+  uint8 r480c;  //decompression status
+
+  SPC7110Decomp decomp;
+
+  //==============
+  //data port unit
+  //==============
+  uint8 r4811;  //data pointer low
+  uint8 r4812;  //data pointer high
+  uint8 r4813;  //data pointer bank
+  uint8 r4814;  //data adjust low
+  uint8 r4815;  //data adjust high
+  uint8 r4816;  //data increment low
+  uint8 r4817;  //data increment high
+  uint8 r4818;  //data port control register
+
+  uint8 r481x;
+
+  bool r4814_latch;
+  bool r4815_latch;
+
+  //=========
+  //math unit
+  //=========
+  uint8 r4820;  //16-bit multiplicand B0, 32-bit dividend B0
+  uint8 r4821;  //16-bit multiplicand B1, 32-bit dividend B1
+  uint8 r4822;  //32-bit dividend B2
+  uint8 r4823;  //32-bit dividend B3
+  uint8 r4824;  //16-bit multiplier B0
+  uint8 r4825;  //16-bit multiplier B1
+  uint8 r4826;  //16-bit divisor B0
+  uint8 r4827;  //16-bit divisor B1
+  uint8 r4828;  //32-bit product B0, 32-bit quotient B0
+  uint8 r4829;  //32-bit product B1, 32-bit quotient B1
+  uint8 r482a;  //32-bit product B2, 32-bit quotient B2
+  uint8 r482b;  //32-bit product B3, 32-bit quotient B3
+  uint8 r482c;  //16-bit remainder B0
+  uint8 r482d;  //16-bit remainder B1
+  uint8 r482e;  //math control register
+  uint8 r482f;  //math status
+
+  //===================
+  //memory mapping unit
+  //===================
+  uint8 r4830;  //SRAM write enable
+  uint8 r4831;  //$[d0-df]:[0000-ffff] mapping
+  uint8 r4832;  //$[e0-ef]:[0000-ffff] mapping
+  uint8 r4833;  //$[f0-ff]:[0000-ffff] mapping
+  uint8 r4834;  //???
+
+  unsigned dx_offset;
+  unsigned ex_offset;
+  unsigned fx_offset;
+
+  //====================
+  //real-time clock unit
+  //====================
+  uint8 r4840;  //RTC latch
+  uint8 r4841;  //RTC index/data port
+  uint8 r4842;  //RTC status
+
+  enum RTC_State { RTCS_Inactive, RTCS_ModeSelect, RTCS_IndexSelect, RTCS_Write };
+  enum RTC_Mode  { RTCM_Linear = 0x03, RTCM_Indexed = 0x0c };
+  unsigned rtc_state;
+  unsigned rtc_mode;
+  unsigned rtc_index;
+
+  static const unsigned months[12];
+  friend class SPC7110MCU;
+  friend class SPC7110DCU;
+  friend class SPC7110RAM;
+};
+
+class SPC7110MCU : public Memory {
+public:
+  unsigned size() const;
+  uint8 read(unsigned addr);
+  void write(unsigned addr, uint8 data);
+};
+
+class SPC7110DCU : public Memory {
+public:
+  uint8 read(unsigned addr);
+  void write(unsigned addr, uint8 data);
+};
+
+class SPC7110RAM : public Memory {
+public:
+  unsigned size() const;
+  uint8 read(unsigned addr);
+  void write(unsigned addr, uint8 data);
+};
+
+extern SPC7110 spc7110;
+extern SPC7110MCU spc7110mcu;
+extern SPC7110DCU spc7110dcu;
+extern SPC7110RAM spc7110ram;

asnes/chip/srtc/serialization.cpp

@@ -0,0 +1,8 @@
+#ifdef SRTC_CPP
+
+void SRTC::serialize(serializer &s) {
+  s.integer(rtc_mode);
+  s.integer(rtc_index);
+}
+
+#endif

asnes/chip/srtc/srtc.cpp

@@ -1,6 +1,11 @@
-#include <../base.hpp>
-#include <../cart/cart.hpp>
-#include "srtc.hpp"
+#include <snes.hpp>
+
+#define SRTC_CPP
+namespace SNES {
+
+SRTC srtc;
+
+#include "serialization.cpp"
 
 const unsigned SRTC::months[12] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
 
@@ -8,8 +13,6 @@ void SRTC::init() {
 }
 
 void SRTC::enable() {
-  memory::mmio.map(0x2800, *this);
-  memory::mmio.map(0x2801, *this);
 }
 
 void SRTC::power() {
@@ -17,7 +20,7 @@ void SRTC::power() {
 }
 
 void SRTC::reset() {
-  rtc_mode = RTCM_Read;
+  rtc_mode = RtcRead;
   rtc_index = -1;
   update_time();
 }
@@ -156,7 +159,7 @@ uint8 SRTC::mmio_read(unsigned addr) {
   addr &= 0xffff;
 
   if(addr == 0x2800) {
-    if(rtc_mode != RTCM_Read) return 0x00;
+    if(rtc_mode != RtcRead) return 0x00;
 
     if(rtc_index < 0) {
       update_time();
@@ -180,19 +183,19 @@ void SRTC::mmio_write(unsigned addr, uint8 data) {
     data &= 0x0f;  //only the low four bits are used
 
     if(data == 0x0d) {
-      rtc_mode = RTCM_Read;
+      rtc_mode = RtcRead;
       rtc_index = -1;
       return;
     }
 
     if(data == 0x0e) {
-      rtc_mode = RTCM_Command;
+      rtc_mode = RtcCommand;
       return;
     }
 
     if(data == 0x0f) return;  //unknown behavior
 
-    if(rtc_mode == RTCM_Write) {
+    if(rtc_mode == RtcWrite) {
       if(rtc_index >= 0 && rtc_index < 12) {
         memory::cartrtc.write(rtc_index++, data);
 
@@ -206,17 +209,17 @@ void SRTC::mmio_write(unsigned addr, uint8 data) {
           memory::cartrtc.write(rtc_index++, weekday(year, month, day));
         }
       }
-    } else if(rtc_mode == RTCM_Command) {
+    } else if(rtc_mode == RtcCommand) {
       if(data == 0) {
-        rtc_mode = RTCM_Write;
+        rtc_mode = RtcWrite;
         rtc_index = 0;
       } else if(data == 4) {
-        rtc_mode = RTCM_Ready;
+        rtc_mode = RtcReady;
         rtc_index = -1;
         for(unsigned i = 0; i < 13; i++) memory::cartrtc.write(i, 0);
       } else {
         //unknown behavior
-        rtc_mode = RTCM_Ready;
+        rtc_mode = RtcReady;
       }
     }
   }
@@ -224,3 +227,5 @@ void SRTC::mmio_write(unsigned addr, uint8 data) {
 
 SRTC::SRTC() {
 }
+
+}

asnes/chip/srtc/srtc.hpp

@@ -1,22 +1,24 @@
 class SRTC : public MMIO {
 public:
-  void update_time();
-  unsigned weekday(unsigned year, unsigned month, unsigned day);
-
   void init();
   void enable();
   void power();
   void reset();
 
-  uint8 mmio_read (unsigned addr);
+  uint8 mmio_read(unsigned addr);
   void mmio_write(unsigned addr, uint8 data);
 
+  void serialize(serializer&);
   SRTC();
 
 private:
   static const unsigned months[12];
-  enum RTC_Mode { RTCM_Ready, RTCM_Command, RTCM_Read, RTCM_Write } rtc_mode;
+  enum RtcMode { RtcReady, RtcCommand, RtcRead, RtcWrite };
+  unsigned rtc_mode;
   signed rtc_index;
+
+  void update_time();
+  unsigned weekday(unsigned year, unsigned month, unsigned day);
 };
 
 extern SRTC srtc;

asnes/chip/st0010/data.hpp

@@ -1,4 +1,6 @@
-const int16 ST010::sin_table[256] = {
+#ifdef ST0010_CPP
+
+const int16 ST0010::sin_table[256] = {
    0x0000,  0x0324,  0x0648,  0x096a,  0x0c8c,  0x0fab,  0x12c8,  0x15e2,
    0x18f9,  0x1c0b,  0x1f1a,  0x2223,  0x2528,  0x2826,  0x2b1f,  0x2e11,
    0x30fb,  0x33df,  0x36ba,  0x398c,  0x3c56,  0x3f17,  0x41ce,  0x447a,
@@ -33,7 +35,7 @@ const int16 ST010::sin_table[256] = {
   -0x18f8, -0x15e2, -0x12c8, -0x0fab, -0x0c8b, -0x096a, -0x0647, -0x0324
 };
 
-const int16 ST010::mode7_scale[176] = {
+const int16 ST0010::mode7_scale[176] = {
   0x0380,  0x0325,  0x02da,  0x029c,  0x0268,  0x023b,  0x0215,  0x01f3,
   0x01d5,  0x01bb,  0x01a3,  0x018e,  0x017b,  0x016a,  0x015a,  0x014b,
   0x013e,  0x0132,  0x0126,  0x011c,  0x0112,  0x0109,  0x0100,  0x00f8,
@@ -58,7 +60,7 @@ const int16 ST010::mode7_scale[176] = {
   0x002d,  0x002c,  0x002c,  0x002c,  0x002c,  0x002b,  0x002b,  0x002b
 };
 
-const uint8 ST010::arctan[32][32] = {
+const uint8 ST0010::arctan[32][32] = {
   { 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
     0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80 },
   { 0x80, 0xa0, 0xad, 0xb3, 0xb6, 0xb8, 0xb9, 0xba, 0xbb, 0xbb, 0xbc, 0xbc, 0xbd, 0xbd, 0xbd, 0xbd,
@@ -124,3 +126,5 @@ const uint8 ST010::arctan[32][32] = {
   { 0x80, 0x81, 0x83, 0x84, 0x85, 0x87, 0x88, 0x89, 0x8a, 0x8c, 0x8d, 0x8e, 0x8f, 0x90, 0x91, 0x92,
     0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9c, 0x9d, 0x9e, 0x9f, 0x9f, 0xa0 }
 };
+
+#endif

asnes/chip/st0010/opcodes.cpp

@@ -1,9 +1,9 @@
-#ifdef ST010_CPP
+#ifdef ST0010_CPP
 
-//ST-010 emulation code - Copyright (C) 2003 The Dumper, Matthew Kendora, Overload, Feather
+//ST-0010 emulation code - Copyright (C) 2003 The Dumper, Matthew Kendora, Overload, Feather
 //bsnes port - Copyright (C) 2007 byuu
 
-void ST010::op_01(int16 x0, int16 y0, int16 &x1, int16 &y1, int16 &quadrant, int16 &theta) {
+void ST0010::op_01(int16 x0, int16 y0, int16 &x1, int16 &y1, int16 &quadrant, int16 &theta) {
   if((x0 < 0) && (y0 < 0)) {
     x1 = -x0;
     y1 = -y0;
@@ -34,10 +34,10 @@ void ST010::op_01(int16 x0, int16 y0, int16 &x1, int16 &y1, int16 &quadrant, int
 
 //
 
-void ST010::op_01() {
-int16 x0 = readw(0x0000);
-int16 y0 = readw(0x0002);
-int16 x1, y1, quadrant, theta;
+void ST0010::op_01() {
+  int16 x0 = readw(0x0000);
+  int16 y0 = readw(0x0002);
+  int16 x1, y1, quadrant, theta;
 
   op_01(x0, y0, x1, y1, quadrant, theta);
 
@@ -48,13 +48,13 @@ int16 x1, y1, quadrant, theta;
   writew(0x0010, theta);
 }
 
-void ST010::op_02() {
-int16 positions = readw(0x0024);
-uint16 *places  = (uint16*)(ram + 0x0040);
-uint16 *drivers = (uint16*)(ram + 0x0080);
+void ST0010::op_02() {
+  int16 positions = readw(0x0024);
+  uint16 *places  = (uint16*)(ram + 0x0040);
+  uint16 *drivers = (uint16*)(ram + 0x0080);
 
-bool sorted;
-uint16 temp;
+  bool sorted;
+  uint16 temp;
   if(positions > 1) {
     do {
       sorted = true;
@@ -76,11 +76,11 @@ uint16 temp;
   }
 }
 
-void ST010::op_03() {
-int16 x0 = readw(0x0000);
-int16 y0 = readw(0x0002);
-int16 multiplier = readw(0x0004);
-int32 x1, y1;
+void ST0010::op_03() {
+  int16 x0 = readw(0x0000);
+  int16 y0 = readw(0x0002);
+  int16 multiplier = readw(0x0004);
+  int32 x1, y1;
 
   x1 = x0 * multiplier << 1;
   y1 = y0 * multiplier << 1;
@@ -89,80 +89,80 @@ int32 x1, y1;
   writed(0x0014, y1);
 }
 
-void ST010::op_04() {
-int16 x = readw(0x0000);
-int16 y = readw(0x0002);
-int16 square;
-//calculate the vector length of (x,y)
+void ST0010::op_04() {
+  int16 x = readw(0x0000);
+  int16 y = readw(0x0002);
+  int16 square;
+  //calculate the vector length of (x,y)
   square = (int16)sqrt((double)(y * y + x * x));
 
   writew(0x0010, square);
 }
 
-void ST010::op_05() {
-int32 dx, dy;
-int16 a1, b1, c1;
-uint16 o1;
-bool wrap = false;
+void ST0010::op_05() {
+  int32 dx, dy;
+  int16 a1, b1, c1;
+  uint16 o1;
+  bool wrap = false;
 
-//target (x,y) coordinates
-int16 ypos_max = readw(0x00c0);
-int16 xpos_max = readw(0x00c2);
+  //target (x,y) coordinates
+  int16 ypos_max = readw(0x00c0);
+  int16 xpos_max = readw(0x00c2);
 
-//current coordinates and direction
-int32 ypos = readd(0x00c4);
-int32 xpos = readd(0x00c8);
-uint16 rot = readw(0x00cc);
+  //current coordinates and direction
+  int32 ypos = readd(0x00c4);
+  int32 xpos = readd(0x00c8);
+  uint16 rot = readw(0x00cc);
 
-//physics
-uint16 speed = readw(0x00d4);
-uint16 accel = readw(0x00d6);
-uint16 speed_max = readw(0x00d8);
+  //physics
+  uint16 speed = readw(0x00d4);
+  uint16 accel = readw(0x00d6);
+  uint16 speed_max = readw(0x00d8);
 
-//special condition acknowledgement
-int16 system = readw(0x00da);
-int16 flags = readw(0x00dc);
+  //special condition acknowledgement
+  int16 system = readw(0x00da);
+  int16 flags = readw(0x00dc);
 
-//new target coordinates
-int16 ypos_new = readw(0x00de);
-int16 xpos_new = readw(0x00e0);
+  //new target coordinates
+  int16 ypos_new = readw(0x00de);
+  int16 xpos_new = readw(0x00e0);
 
-//mask upper bit
+  //mask upper bit
   xpos_new &= 0x7fff;
 
-//get the current distance
+  //get the current distance
   dx = xpos_max - (xpos >> 16);
   dy = ypos_max - (ypos >> 16);
 
-//quirk: clear and move in9
+  //quirk: clear and move in9
   writew(0x00d2, 0xffff);
   writew(0x00da, 0x0000);
 
-//grab the target angle
+  //grab the target angle
   op_01(dy, dx, a1, b1, c1, (int16&)o1);
 
-//check for wrapping
+  //check for wrapping
   if(abs(o1 - rot) > 0x8000) {
     o1 += 0x8000;
     rot += 0x8000;
     wrap = true;
   }
 
-uint16 old_speed = speed;
+  uint16 old_speed = speed;
 
-//special case
+  //special case
   if(abs(o1 - rot) == 0x8000) {
     speed = 0x100;
   }
 
-//slow down for sharp curves
+  //slow down for sharp curves
   else if(abs(o1 - rot) >= 0x1000) {
   uint32 slow = abs(o1 - rot);
     slow >>= 4;  //scaling
     speed -= slow;
   }
 
-//otherwise accelerate
+  //otherwise accelerate
   else {
     speed += accel;
     if(speed > speed_max) {
@@ -170,29 +170,29 @@ uint16 old_speed = speed;
     }
   }
 
-//prevent negative/positive overflow
+  //prevent negative/positive overflow
   if(abs(old_speed - speed) > 0x8000) {
     if(old_speed < speed) { speed = 0; }
     else speed = 0xff00;
   }
 
-//adjust direction by so many degrees
-//be careful of negative adjustments
+  //adjust direction by so many degrees
+  //be careful of negative adjustments
   if((o1 > rot && (o1 - rot) > 0x80) || (o1 < rot && (rot - o1) >= 0x80)) {
     if(o1 < rot) { rot -= 0x280; }
     else if(o1 > rot) { rot += 0x280; }
   }
 
-//turn of wrapping
+  //turn off wrapping
   if(wrap) { rot -= 0x8000; }
 
-//now check the distances (store for later)
+  //now check the distances (store for later)
   dx = (xpos_max << 16) - xpos;
   dy = (ypos_max << 16) - ypos;
   dx >>= 16;
   dy >>= 16;
 
-//if we're in so many units of the target, signal it
+  //if we're in so many units of the target, signal it
   if((system && (dy <= 6 && dy >= -8) && (dx <= 126 && dx >= -128)) || (!system && (dx <= 6 && dx >= -8) && (dy <= 126 && dy >= -128))) {
     //announce our new destination and flag it
     xpos_max = xpos_new & 0x7fff;
@@ -200,11 +200,11 @@ uint16 old_speed = speed;
     flags |= 0x08;
   }
 
-//update position
+  //update position
   xpos -= (cos(rot) * 0x400 >> 15) * (speed >> 8) << 1;
   ypos -= (sin(rot) * 0x400 >> 15) * (speed >> 8) << 1;
 
-//quirk: mask upper byte
+  //quirk: mask upper byte
   xpos &= 0x1fffffff;
   ypos &= 0x1fffffff;
 
@@ -217,20 +217,20 @@ uint16 old_speed = speed;
   writew(0x00dc, flags);
 }
 
-void ST010::op_06() {
-int16 multiplicand = readw(0x0000);
-int16 multiplier = readw(0x0002);
-int32 product;
+void ST0010::op_06() {
+  int16 multiplicand = readw(0x0000);
+  int16 multiplier = readw(0x0002);
+  int32 product;
 
   product = multiplicand * multiplier << 1;
 
   writed(0x0010, product);
 }
 
-void ST010::op_07() {
-int16 theta = readw(0x0000);
+void ST0010::op_07() {
+  int16 theta = readw(0x0000);
 
-int16 data;
+  int16 data;
   for(int i = 0, offset = 0; i < 176; i++) {
     data = mode7_scale[i] * cos(theta) >> 15;
     writew(0x00f0 + offset, data);
@@ -245,11 +245,11 @@ int16 data;
   }
 }
 
-void ST010::op_08() {
-int16 x0 = readw(0x0000);
-int16 y0 = readw(0x0002);
-int16 theta = readw(0x0004);
-int16 x1, y1;
+void ST0010::op_08() {
+  int16 x0 = readw(0x0000);
+  int16 y0 = readw(0x0002);
+  int16 theta = readw(0x0004);
+  int16 x1, y1;
 
   x1 = (y0 * sin(theta) >> 15) + (x0 * cos(theta) >> 15);
   y1 = (y0 * cos(theta) >> 15) - (x0 * sin(theta) >> 15);

asnes/chip/st0010/serialization.cpp

@@ -0,0 +1,7 @@
+#ifdef ST0010_CPP
+
+void ST0010::serialize(serializer &s) {
+  s.array(ram);
+}
+
+#endif

asnes/chip/st0010/st0010.cpp

@@ -1,45 +1,55 @@
-#include <../base.hpp>
-#define ST010_CPP
+#include <snes.hpp>
 
-#include "st010.hpp"
-#include "st010_data.hpp"
-#include "st010_op.cpp"
+#define ST0010_CPP
+namespace SNES {
 
-int16 ST010::sin(int16 theta) {
+ST0010 st0010;
+
+#include "data.hpp"
+#include "opcodes.cpp"
+#include "serialization.cpp"
+
+void ST0010::init() {
+}
+
+void ST0010::enable() {
+}
+
+int16 ST0010::sin(int16 theta) {
   return sin_table[(theta >> 8) & 0xff];
 }
 
-int16 ST010::cos(int16 theta) {
+int16 ST0010::cos(int16 theta) {
   return sin_table[((theta + 0x4000) >> 8) & 0xff];
 }
 
-uint8 ST010::readb(uint16 addr) {
+uint8 ST0010::readb(uint16 addr) {
   return ram[addr & 0xfff];
 }
 
-uint16 ST010::readw(uint16 addr) {
+uint16 ST0010::readw(uint16 addr) {
   return (readb(addr + 0) <<  0) |
          (readb(addr + 1) <<  8);
 }
 
-uint32 ST010::readd(uint16 addr) {
+uint32 ST0010::readd(uint16 addr) {
   return (readb(addr + 0) <<  0) |
          (readb(addr + 1) <<  8) |
          (readb(addr + 2) << 16) |
          (readb(addr + 3) << 24);
 }
 
-void ST010::writeb(uint16 addr, uint8 data) {
+void ST0010::writeb(uint16 addr, uint8 data) {
   ram[addr & 0xfff] = data;
 }
 
-void ST010::writew(uint16 addr, uint16 data) {
-  writeb(addr + 0, data);
+void ST0010::writew(uint16 addr, uint16 data) {
+  writeb(addr + 0, data >> 0);
   writeb(addr + 1, data >> 8);
 }
 
-void ST010::writed(uint16 addr, uint32 data) {
-  writeb(addr + 0, data);
+void ST0010::writed(uint16 addr, uint32 data) {
+  writeb(addr + 0, data >>  0);
   writeb(addr + 1, data >>  8);
   writeb(addr + 2, data >> 16);
   writeb(addr + 3, data >> 24);
@@ -47,27 +57,21 @@ void ST010::writed(uint16 addr, uint32 data) {
 
 //
 
-void ST010::init() {
-}
-
-void ST010::enable() {
-}
-
-void ST010::power() {
+void ST0010::power() {
   reset();
 }
 
-void ST010::reset() {
+void ST0010::reset() {
   memset(ram, 0x00, sizeof ram);
 }
 
 //
 
-uint8 ST010::read(unsigned addr) {
+uint8 ST0010::read(unsigned addr) {
   return readb(addr);
 }
 
-void ST010::write(unsigned addr, uint8 data) {
+void ST0010::write(unsigned addr, uint8 data) {
   writeb(addr, data);
 
   if((addr & 0xfff) == 0x0021 && (data & 0x80)) {
@@ -85,3 +89,5 @@ void ST010::write(unsigned addr, uint8 data) {
     ram[0x0021] &= ~0x80;
   }
 }
+
+}

asnes/chip/st0010/st0010.hpp

@@ -1,24 +1,26 @@
-class ST010 : public Memory {
+class ST0010 : public Memory {
 public:
   void init();
   void enable();
   void power();
   void reset();
 
-  uint8 read (unsigned addr);
+  uint8 read(unsigned addr);
   void write(unsigned addr, uint8 data);
 
+  void serialize(serializer&);
+
 private:
   uint8 ram[0x1000];
   static const int16 sin_table[256];
   static const int16 mode7_scale[176];
   static const uint8 arctan[32][32];
 
-//interfaces to sin table
+  //interfaces to sin table
   int16 sin(int16 theta);
   int16 cos(int16 theta);
 
-//interfaces to ram buffer
+  //interfaces to ram buffer
   uint8  readb (uint16 addr);
   uint16 readw (uint16 addr);
   uint32 readd (uint16 addr);
@@ -26,7 +28,7 @@ private:
   void   writew(uint16 addr, uint16 data);
   void   writed(uint16 addr, uint32 data);
 
-//opcodes
+  //opcodes
   void op_01();
   void op_02();
   void op_03();
@@ -39,4 +41,4 @@ private:
   void op_01(int16 x0, int16 y0, int16 &x1, int16 &y1, int16 &quadrant, int16 &theta);
 };
 
-extern ST010 st010;
+extern ST0010 st0010;

asnes/chip/st0011/st0011.cpp

@@ -0,0 +1,20 @@
+#include <snes.hpp>
+
+#define ST0011_CPP
+namespace SNES {
+
+ST0011 st0011;
+
+void ST0011::init() {
+}
+
+void ST0011::enable() {
+}
+
+void ST0011::power() {
+}
+
+void ST0011::reset() {
+}
+
+}

asnes/chip/st0011/st0011.hpp

@@ -0,0 +1,9 @@
+class ST0011 {
+public:
+  void init();
+  void enable();
+  void power();
+  void reset();
+};
+
+extern ST0011 st0011;

asnes/chip/st0018/st0018.cpp

@@ -0,0 +1,123 @@
+#include <snes.hpp>
+
+#define ST0018_CPP
+namespace SNES {
+
+ST0018 st0018;
+
+uint8 ST0018::mmio_read(unsigned addr) {
+  addr &= 0xffff;
+  if(addr == 0x3800) return regs.r3800;
+  if(addr == 0x3804) return regs.r3804;
+  return cpu.regs.mdr;
+}
+
+void ST0018::mmio_write(unsigned addr, uint8 data) {
+  addr &= 0xffff;
+
+  if(addr == 0x3802) {
+    switch(regs.mode) {
+      case Waiting: {
+        switch(data) {
+          case 0x01: regs.r3800 = regs.r3800_01; break;
+          case 0xaa: op_board_upload(); break;
+          case 0xb2: op_b2(); break;
+          case 0xb3: op_b3(); break;
+          case 0xb4: op_b4(); break;
+          case 0xb5: op_b5(); break;
+          case 0xf1: op_query_chip(); break;
+          case 0xf2: op_query_chip(); break;
+          default: fprintf(stdout, "* ST018 w3802::%.2x\n", data); break;
+        }
+      } return;
+
+      case BoardUpload: {
+        op_board_upload(data);
+      } return;
+    }
+  }
+
+  if(addr == 0x3804) {
+    regs.w3804 <<= 8;
+    regs.w3804  |= data;
+    regs.w3804  &= 0xffffff;
+    return;
+  }
+}
+
+void ST0018::init() {
+}
+
+void ST0018::enable() {
+}
+
+void ST0018::power() {
+  reset();
+}
+
+void ST0018::reset() {
+  regs.mode = Waiting;
+  regs.r3800 = 0x00;
+  regs.r3804 = 0x85;
+  regs.w3804 = 0;
+  for(unsigned i = 0; i < 97; i++) board[i] = 0;
+}
+
+//===============
+//ST-0018 opcodes
+//===============
+
+void ST0018::op_board_upload() {
+  regs.mode = BoardUpload;
+  regs.counter = 0;
+  regs.r3800 = 0xe0;
+}
+
+void ST0018::op_board_upload(uint8 data) {
+  board[regs.counter] = data;
+  regs.r3800 = 96 - regs.counter;
+  regs.counter++;
+  if(regs.counter >= 97) {
+    regs.mode = Waiting;
+    #if 0
+    for(unsigned y = 0; y < 9; y++) {
+      for(unsigned x = 0; x < 9; x++) {
+        fprintf(stdout, "%.2x ", board[y * 9 + x]);
+      }
+      fprintf(stdout, "\n");
+    }
+    for(unsigned n = 0; n < 16; n++) fprintf(stdout, "%.2x ", board[81 + n]);
+    fprintf(stdout, "\n\n");
+    #endif
+  }
+}
+
+void ST0018::op_b2() {
+  fprintf(stdout, "* ST018 w3802::b2\n");
+  regs.r3800 = 0xe0;
+  regs.r3800_01 = 0;  //unknown
+}
+
+void ST0018::op_b3() {
+  fprintf(stdout, "* ST018 w3802::b3\n");
+  regs.r3800 = 0xe0;
+  regs.r3800_01 = 1;  //0 = player lost?
+}
+
+void ST0018::op_b4() {
+  fprintf(stdout, "* ST018 w3802::b4\n");
+  regs.r3800 = 0xe0;
+  regs.r3800_01 = 1;  //0 = player won?
+}
+
+void ST0018::op_b5() {
+  fprintf(stdout, "* ST018 w3802::b5\n");
+  regs.r3800 = 0xe0;
+  regs.r3800_01 = 0;  //1 = move will result in checkmate?
+}
+
+void ST0018::op_query_chip() {
+  regs.r3800 = 0x00;
+}
+
+}

asnes/chip/st0018/st0018.hpp

@@ -0,0 +1,51 @@
+class ST0018 : public MMIO {
+public:
+  void init();
+  void enable();
+  void power();
+  void reset();
+
+  uint8 mmio_read(unsigned addr);
+  void mmio_write(unsigned addr, uint8 data);
+
+  enum mode_t { Waiting, BoardUpload };
+  struct regs_t {
+    mode_t mode;
+
+    uint8 r3800;
+    uint8 r3800_01;
+    uint8 r3804;
+
+    unsigned w3804;
+    unsigned counter;
+  } regs;
+
+  enum PieceID {
+    Pawn   = 0x00,  //foot soldier
+    Lance  = 0x04,  //incense chariot
+    Knight = 0x08,  //cassia horse
+    Silver = 0x0c,  //silver general
+    Gold   = 0x10,  //gold general
+    Rook   = 0x14,  //flying chariot
+    Bishop = 0x18,  //angle mover
+    King   = 0x1c,  //king
+  };
+
+  enum PieceFlag {
+    PlayerA = 0x20,
+    PlayerB = 0x40,
+  };
+
+  uint8 board[9 * 9 + 16];
+
+private:
+  void op_board_upload();
+  void op_board_upload(uint8 data);
+  void op_b2();
+  void op_b3();
+  void op_b4();
+  void op_b5();
+  void op_query_chip();
+};
+
+extern ST0018 st0018;

asnes/chip/superfx/bus/bus.cpp

@@ -0,0 +1,97 @@
+#ifdef SUPERFX_CPP
+
+SuperFXBus superfxbus;
+
+namespace memory {
+  SuperFXGSUROM gsurom;
+  SuperFXGSURAM gsuram;
+  SuperFXCPUROM fxrom;
+  SuperFXCPURAM fxram;
+}
+
+void SuperFXBus::init() {
+  map(MapMode::Direct, 0x00, 0xff, 0x0000, 0xffff, memory::memory_unmapped);
+
+  map(MapMode::Linear, 0x00, 0x3f, 0x0000, 0x7fff, memory::gsurom);
+  map(MapMode::Linear, 0x00, 0x3f, 0x8000, 0xffff, memory::gsurom);
+  map(MapMode::Linear, 0x40, 0x5f, 0x0000, 0xffff, memory::gsurom);
+  map(MapMode::Linear, 0x60, 0x7f, 0x0000, 0xffff, memory::gsuram);
+}
+
+//ROM / RAM access from the SuperFX CPU
+
+unsigned SuperFXGSUROM::size() const {
+  return memory::cartrom.size();
+}
+
+uint8 SuperFXGSUROM::read(unsigned addr) {
+  while(!superfx.regs.scmr.ron && scheduler.sync != Scheduler::SynchronizeMode::All) {
+    superfx.add_clocks(6);
+    superfx.synchronize_cpu();
+  }
+  return memory::cartrom.read(addr);
+}
+
+void SuperFXGSUROM::write(unsigned addr, uint8 data) {
+  while(!superfx.regs.scmr.ron && scheduler.sync != Scheduler::SynchronizeMode::All) {
+    superfx.add_clocks(6);
+    superfx.synchronize_cpu();
+  }
+  memory::cartrom.write(addr, data);
+}
+
+unsigned SuperFXGSURAM::size() const {
+  return memory::cartram.size();
+}
+
+uint8 SuperFXGSURAM::read(unsigned addr) {
+  while(!superfx.regs.scmr.ran && scheduler.sync != Scheduler::SynchronizeMode::All) {
+    superfx.add_clocks(6);
+    superfx.synchronize_cpu();
+  }
+  return memory::cartram.read(addr);
+}
+
+void SuperFXGSURAM::write(unsigned addr, uint8 data) {
+  while(!superfx.regs.scmr.ran && scheduler.sync != Scheduler::SynchronizeMode::All) {
+    superfx.add_clocks(6);
+    superfx.synchronize_cpu();
+  }
+  memory::cartram.write(addr, data);
+}
+
+//ROM / RAM access from the S-CPU
+
+unsigned SuperFXCPUROM::size() const {
+  return memory::cartrom.size();
+}
+
+uint8 SuperFXCPUROM::read(unsigned addr) {
+  if(superfx.regs.sfr.g && superfx.regs.scmr.ron) {
+    static const uint8_t data[16] = {
+      0x00, 0x01, 0x00, 0x01, 0x04, 0x01, 0x00, 0x01,
+      0x00, 0x01, 0x08, 0x01, 0x00, 0x01, 0x0c, 0x01,
+    };
+    return data[addr & 15];
+  }
+  return memory::cartrom.read(addr);
+}
+
+void SuperFXCPUROM::write(unsigned addr, uint8 data) {
+  memory::cartrom.write(addr, data);
+}
+
+unsigned SuperFXCPURAM::size() const {
+  return memory::cartram.size();
+}
+
+uint8 SuperFXCPURAM::read(unsigned addr) {
+  if(superfx.regs.sfr.g && superfx.regs.scmr.ran) return cpu.regs.mdr;
+  return memory::cartram.read(addr);
+}
+
+void SuperFXCPURAM::write(unsigned addr, uint8 data) {
+  memory::cartram.write(addr, data);
+}
+
+#endif

asnes/chip/superfx/bus/bus.hpp

@@ -0,0 +1,34 @@
+struct SuperFXBus : Bus {
+  void init();
+};
+
+struct SuperFXGSUROM : Memory {
+  unsigned size() const;
+  uint8 read(unsigned);
+  void write(unsigned, uint8);
+};
+
+struct SuperFXGSURAM : Memory {
+  unsigned size() const;
+  uint8 read(unsigned);
+  void write(unsigned, uint8);
+};
+
+struct SuperFXCPUROM : Memory {
+  unsigned size() const;
+  uint8 read(unsigned);
+  void write(unsigned, uint8);
+};
+
+struct SuperFXCPURAM : Memory {
+  unsigned size() const;
+  uint8 read(unsigned);
+  void write(unsigned, uint8);
+};
+
+namespace memory {
+  extern SuperFXGSUROM gsurom;
+  extern SuperFXGSURAM gsuram;
+  extern SuperFXCPUROM fxrom;
+  extern SuperFXCPURAM fxram;
+}

asnes/chip/superfx/core/core.cpp

@@ -0,0 +1,107 @@
+#ifdef SUPERFX_CPP
+
+#include "opcodes.cpp"
+#include "opcode_table.cpp"
+
+uint8 SuperFX::color(uint8 source) {
+  if(regs.por.highnibble) return (regs.colr & 0xf0) | (source >> 4);
+  if(regs.por.freezehigh) return (regs.colr & 0xf0) | (source & 0x0f);
+  return source;
+}
+
+void SuperFX::plot(uint8 x, uint8 y) {
+  uint8 color = regs.colr;
+
+  if(regs.por.dither && regs.scmr.md != 3) {
+    if((x ^ y) & 1) color >>= 4;
+    color &= 0x0f;
+  }
+
+  if(!regs.por.transparent) {
+    if(regs.scmr.md == 3) {
+      if(regs.por.freezehigh) {
+        if((color & 0x0f) == 0) return;
+      } else {
+        if(color == 0) return;
+      }
+    } else {
+      if((color & 0x0f) == 0) return;
+    }
+  }
+
+  uint16 offset = (y << 5) + (x >> 3);
+  if(offset != pixelcache[0].offset) {
+    pixelcache_flush(pixelcache[1]);
+    pixelcache[1] = pixelcache[0];
+    pixelcache[0].bitpend = 0x00;
+    pixelcache[0].offset = offset;
+  }
+
+  x = (x & 7) ^ 7;
+  pixelcache[0].data[x] = color;
+  pixelcache[0].bitpend |= 1 << x;
+  if(pixelcache[0].bitpend == 0xff) {
+    pixelcache_flush(pixelcache[1]);
+    pixelcache[1] = pixelcache[0];
+    pixelcache[0].bitpend = 0x00;
+  }
+}
+
+uint8 SuperFX::rpix(uint8 x, uint8 y) {
+  pixelcache_flush(pixelcache[1]);
+  pixelcache_flush(pixelcache[0]);
+
+  unsigned cn;  //character number
+  switch(regs.por.obj ? 3 : regs.scmr.ht) {
+    case 0: cn = ((x & 0xf8) << 1) + ((y & 0xf8) >> 3); break;
+    case 1: cn = ((x & 0xf8) << 1) + ((x & 0xf8) >> 1) + ((y & 0xf8) >> 3); break;
+    case 2: cn = ((x & 0xf8) << 1) + ((x & 0xf8) << 0) + ((y & 0xf8) >> 3); break;
+    case 3: cn = ((y & 0x80) << 2) + ((x & 0x80) << 1) + ((y & 0x78) << 1) + ((x & 0x78) >> 3); break;
+  }
+  unsigned bpp = 2 << (regs.scmr.md - (regs.scmr.md >> 1));  // = [regs.scmr.md]{ 2, 4, 4, 8 };
+  unsigned addr = 0x700000 + (cn * (bpp << 3)) + (regs.scbr << 10) + ((y & 0x07) * 2);
+  uint8 data = 0x00;
+  x = (x & 7) ^ 7;
+
+  for(unsigned n = 0; n < bpp; n++) {
+    unsigned byte = ((n >> 1) << 4) + (n & 1);  // = [n]{ 0, 1, 16, 17, 32, 33, 48, 49 };
+    add_clocks(memory_access_speed);
+    data |= ((superfxbus.read(addr + byte) >> x) & 1) << n;
+  }
+
+  return data;
+}
+
+void SuperFX::pixelcache_flush(pixelcache_t &cache) {
+  if(cache.bitpend == 0x00) return;
+
+  uint8 x = cache.offset << 3;
+  uint8 y = cache.offset >> 5;
+
+  unsigned cn;  //character number
+  switch(regs.por.obj ? 3 : regs.scmr.ht) {
+    case 0: cn = ((x & 0xf8) << 1) + ((y & 0xf8) >> 3); break;
+    case 1: cn = ((x & 0xf8) << 1) + ((x & 0xf8) >> 1) + ((y & 0xf8) >> 3); break;
+    case 2: cn = ((x & 0xf8) << 1) + ((x & 0xf8) << 0) + ((y & 0xf8) >> 3); break;
+    case 3: cn = ((y & 0x80) << 2) + ((x & 0x80) << 1) + ((y & 0x78) << 1) + ((x & 0x78) >> 3); break;
+  }
+  unsigned bpp = 2 << (regs.scmr.md - (regs.scmr.md >> 1));  // = [regs.scmr.md]{ 2, 4, 4, 8 };
+  unsigned addr = 0x700000 + (cn * (bpp << 3)) + (regs.scbr << 10) + ((y & 0x07) * 2);
+
+  for(unsigned n = 0; n < bpp; n++) {
+    unsigned byte = ((n >> 1) << 4) + (n & 1);  // = [n]{ 0, 1, 16, 17, 32, 33, 48, 49 };
+    uint8 data = 0x00;
+    for(unsigned x = 0; x < 8; x++) data |= ((cache.data[x] >> n) & 1) << x;
+    if(cache.bitpend != 0xff) {
+      add_clocks(memory_access_speed);
+      data &= cache.bitpend;
+      data |= superfxbus.read(addr + byte) & ~cache.bitpend;
+    }
+    add_clocks(memory_access_speed);
+    superfxbus.write(addr + byte, data);
+  }
+
+  cache.bitpend = 0x00;
+}
+
+#endif

asnes/chip/superfx/core/core.hpp

@@ -0,0 +1,92 @@
+#include "registers.hpp"
+
+uint8 color(uint8 source);
+void plot(uint8 x, uint8 y);
+uint8 rpix(uint8 x, uint8 y);
+void pixelcache_flush(pixelcache_t &cache);
+
+void (SuperFX::*opcode_table[1024])();
+void initialize_opcode_table();
+
+//opcodes.cpp
+template<int> void op_adc_i();
+template<int> void op_adc_r();
+template<int> void op_add_i();
+template<int> void op_add_r();
+void op_alt1();
+void op_alt2();
+void op_alt3();
+template<int> void op_and_i();
+template<int> void op_and_r();
+void op_asr();
+void op_bge();
+void op_bcc();
+void op_bcs();
+void op_beq();
+template<int> void op_bic_i();
+template<int> void op_bic_r();
+void op_blt();
+void op_bmi();
+void op_bne();
+void op_bpl();
+void op_bra();
+void op_bvc();
+void op_bvs();
+void op_cache();
+void op_cmode();
+template<int> void op_cmp_r();
+void op_color();
+template<int> void op_dec_r();
+void op_div2();
+void op_fmult();
+template<int> void op_from_r();
+void op_getb();
+void op_getbl();
+void op_getbh();
+void op_getbs();
+void op_getc();
+void op_hib();
+template<int> void op_ibt_r();
+template<int> void op_inc_r();
+template<int> void op_iwt_r();
+template<int> void op_jmp_r();
+template<int> void op_ldb_ir();
+template<int> void op_ldw_ir();
+template<int> void op_link();
+template<int> void op_ljmp_r();
+template<int> void op_lm_r();
+template<int> void op_lms_r();
+void op_lmult();
+void op_lob();
+void op_loop();
+void op_lsr();
+void op_merge();
+template<int> void op_mult_i();
+template<int> void op_mult_r();
+void op_nop();
+void op_not();
+template<int> void op_or_i();
+template<int> void op_or_r();
+void op_plot();
+void op_ramb();
+void op_rol();
+void op_romb();
+void op_ror();
+void op_rpix();
+template<int> void op_sbc_r();
+void op_sbk();
+void op_sex();
+template<int> void op_sm_r();
+template<int> void op_sms_r();
+template<int> void op_stb_ir();
+void op_stop();
+template<int> void op_stw_ir();
+template<int> void op_sub_i();
+template<int> void op_sub_r();
+void op_swap();
+template<int> void op_to_r();
+template<int> void op_umult_i();
+template<int> void op_umult_r();
+template<int> void op_with_r();
+template<int> void op_xor_i();
+template<int> void op_xor_r();

asnes/chip/superfx/core/opcode_table.cpp

@@ -0,0 +1,270 @@
+#ifdef SUPERFX_CPP
+
+void SuperFX::initialize_opcode_table() {
+  #define op4(id, name) \
+    op(id+ 0, name< 1>) op(id+ 1, name< 2>) op(id+ 2, name< 3>) op(id+ 3, name< 4>)
+
+  #define op6(id, name) \
+    op(id+ 0, name< 8>) op(id+ 1, name< 9>) op(id+ 2, name<10>) op(id+ 3, name<11>) \
+    op(id+ 4, name<12>) op(id+ 5, name<13>)
+
+  #define op12(id, name) \
+    op(id+ 0, name< 0>) op(id+ 1, name< 1>) op(id+ 2, name< 2>) op(id+ 3, name< 3>) \
+    op(id+ 4, name< 4>) op(id+ 5, name< 5>) op(id+ 6, name< 6>) op(id+ 7, name< 7>) \
+    op(id+ 8, name< 8>) op(id+ 9, name< 9>) op(id+10, name<10>) op(id+11, name<11>)
+
+  #define op15l(id, name) \
+    op(id+ 0, name< 0>) op(id+ 1, name< 1>) op(id+ 2, name< 2>) op(id+ 3, name< 3>) \
+    op(id+ 4, name< 4>) op(id+ 5, name< 5>) op(id+ 6, name< 6>) op(id+ 7, name< 7>) \
+    op(id+ 8, name< 8>) op(id+ 9, name< 9>) op(id+10, name<10>) op(id+11, name<11>) \
+    op(id+12, name<12>) op(id+13, name<13>) op(id+14, name<14>)
+
+  #define op15h(id, name) \
+    op(id+ 0, name< 1>) op(id+ 1, name< 2>) op(id+ 2, name< 3>) op(id+ 3, name< 4>) \
+    op(id+ 4, name< 5>) op(id+ 5, name< 6>) op(id+ 6, name< 7>) op(id+ 7, name< 8>) \
+    op(id+ 8, name< 9>) op(id+ 9, name<10>) op(id+10, name<11>) op(id+11, name<12>) \
+    op(id+12, name<13>) op(id+13, name<14>) op(id+14, name<15>)
+
+  #define op16(id, name) \
+    op(id+ 0, name< 0>) op(id+ 1, name< 1>) op(id+ 2, name< 2>) op(id+ 3, name< 3>) \
+    op(id+ 4, name< 4>) op(id+ 5, name< 5>) op(id+ 6, name< 6>) op(id+ 7, name< 7>) \
+    op(id+ 8, name< 8>) op(id+ 9, name< 9>) op(id+10, name<10>) op(id+11, name<11>) \
+    op(id+12, name<12>) op(id+13, name<13>) op(id+14, name<14>) op(id+15, name<15>)
+
+  //======
+  // ALT0
+  //======
+
+  #define op(id, name) opcode_table[  0 + id] = &SuperFX::op_##name;
+  op   (0x00, stop)
+  op   (0x01, nop)
+  op   (0x02, cache)
+  op   (0x03, lsr)
+  op   (0x04, rol)
+  op   (0x05, bra)
+  op   (0x06, blt)
+  op   (0x07, bge)
+  op   (0x08, bne)
+  op   (0x09, beq)
+  op   (0x0a, bpl)
+  op   (0x0b, bmi)
+  op   (0x0c, bcc)
+  op   (0x0d, bcs)
+  op   (0x0e, bvc)
+  op   (0x0f, bvs)
+  op16 (0x10, to_r)
+  op16 (0x20, with_r)
+  op12 (0x30, stw_ir)
+  op   (0x3c, loop)
+  op   (0x3d, alt1)
+  op   (0x3e, alt2)
+  op   (0x3f, alt3)
+  op12 (0x40, ldw_ir)
+  op   (0x4c, plot)
+  op   (0x4d, swap)
+  op   (0x4e, color)
+  op   (0x4f, not)
+  op16 (0x50, add_r)
+  op16 (0x60, sub_r)
+  op   (0x70, merge)
+  op15h(0x71, and_r)
+  op16 (0x80, mult_r)
+  op   (0x90, sbk)
+  op4  (0x91, link)
+  op   (0x95, sex)
+  op   (0x96, asr)
+  op   (0x97, ror)
+  op6  (0x98, jmp_r)
+  op   (0x9e, lob)
+  op   (0x9f, fmult)
+  op16 (0xa0, ibt_r)
+  op16 (0xb0, from_r)
+  op   (0xc0, hib)
+  op15h(0xc1, or_r)
+  op15l(0xd0, inc_r)
+  op   (0xdf, getc)
+  op15l(0xe0, dec_r)
+  op   (0xef, getb)
+  op16 (0xf0, iwt_r)
+  #undef op
+
+  //======
+  // ALT1
+  //======
+
+  #define op(id, name) opcode_table[256 + id] = &SuperFX::op_##name;
+  op   (0x00, stop)
+  op   (0x01, nop)
+  op   (0x02, cache)
+  op   (0x03, lsr)
+  op   (0x04, rol)
+  op   (0x05, bra)
+  op   (0x06, blt)
+  op   (0x07, bge)
+  op   (0x08, bne)
+  op   (0x09, beq)
+  op   (0x0a, bpl)
+  op   (0x0b, bmi)
+  op   (0x0c, bcc)
+  op   (0x0d, bcs)
+  op   (0x0e, bvc)
+  op   (0x0f, bvs)
+  op16 (0x10, to_r)
+  op16 (0x20, with_r)
+  op12 (0x30, stb_ir)
+  op   (0x3c, loop)
+  op   (0x3d, alt1)
+  op   (0x3e, alt2)
+  op   (0x3f, alt3)
+  op12 (0x40, ldb_ir)
+  op   (0x4c, rpix)
+  op   (0x4d, swap)
+  op   (0x4e, cmode)
+  op   (0x4f, not)
+  op16 (0x50, adc_r)
+  op16 (0x60, sbc_r)
+  op   (0x70, merge)
+  op15h(0x71, bic_r)
+  op16 (0x80, umult_r)
+  op   (0x90, sbk)
+  op4  (0x91, link)
+  op   (0x95, sex)
+  op   (0x96, div2)
+  op   (0x97, ror)
+  op6  (0x98, ljmp_r)
+  op   (0x9e, lob)
+  op   (0x9f, lmult)
+  op16 (0xa0, lms_r)
+  op16 (0xb0, from_r)
+  op   (0xc0, hib)
+  op15h(0xc1, xor_r)
+  op15l(0xd0, inc_r)
+  op   (0xdf, getc)
+  op15l(0xe0, dec_r)
+  op   (0xef, getbh)
+  op16 (0xf0, lm_r)
+  #undef op
+
+  //======
+  // ALT2
+  //======
+
+  #define op(id, name) opcode_table[512 + id] = &SuperFX::op_##name;
+  op   (0x00, stop)
+  op   (0x01, nop)
+  op   (0x02, cache)
+  op   (0x03, lsr)
+  op   (0x04, rol)
+  op   (0x05, bra)
+  op   (0x06, blt)
+  op   (0x07, bge)
+  op   (0x08, bne)
+  op   (0x09, beq)
+  op   (0x0a, bpl)
+  op   (0x0b, bmi)
+  op   (0x0c, bcc)
+  op   (0x0d, bcs)
+  op   (0x0e, bvc)
+  op   (0x0f, bvs)
+  op16 (0x10, to_r)
+  op16 (0x20, with_r)
+  op12 (0x30, stw_ir)
+  op   (0x3c, loop)
+  op   (0x3d, alt1)
+  op   (0x3e, alt2)
+  op   (0x3f, alt3)
+  op12 (0x40, ldw_ir)
+  op   (0x4c, plot)
+  op   (0x4d, swap)
+  op   (0x4e, color)
+  op   (0x4f, not)
+  op16 (0x50, add_i)
+  op16 (0x60, sub_i)
+  op   (0x70, merge)
+  op15h(0x71, and_i)
+  op16 (0x80, mult_i)
+  op   (0x90, sbk)
+  op4  (0x91, link)
+  op   (0x95, sex)
+  op   (0x96, asr)
+  op   (0x97, ror)
+  op6  (0x98, jmp_r)
+  op   (0x9e, lob)
+  op   (0x9f, fmult)
+  op16 (0xa0, sms_r)
+  op16 (0xb0, from_r)
+  op   (0xc0, hib)
+  op15h(0xc1, or_i)
+  op15l(0xd0, inc_r)
+  op   (0xdf, ramb)
+  op15l(0xe0, dec_r)
+  op   (0xef, getbl)
+  op16 (0xf0, sm_r)
+  #undef op
+
+  //======
+  // ALT3
+  //======
+
+  #define op(id, name) opcode_table[768 + id] = &SuperFX::op_##name;
+  op   (0x00, stop)
+  op   (0x01, nop)
+  op   (0x02, cache)
+  op   (0x03, lsr)
+  op   (0x04, rol)
+  op   (0x05, bra)
+  op   (0x06, blt)
+  op   (0x07, bge)
+  op   (0x08, bne)
+  op   (0x09, beq)
+  op   (0x0a, bpl)
+  op   (0x0b, bmi)
+  op   (0x0c, bcc)
+  op   (0x0d, bcs)
+  op   (0x0e, bvc)
+  op   (0x0f, bvs)
+  op16 (0x10, to_r)
+  op16 (0x20, with_r)
+  op12 (0x30, stb_ir)
+  op   (0x3c, loop)
+  op   (0x3d, alt1)
+  op   (0x3e, alt2)
+  op   (0x3f, alt3)
+  op12 (0x40, ldb_ir)
+  op   (0x4c, rpix)
+  op   (0x4d, swap)
+  op   (0x4e, cmode)
+  op   (0x4f, not)
+  op16 (0x50, adc_i)
+  op16 (0x60, cmp_r)
+  op   (0x70, merge)
+  op15h(0x71, bic_i)
+  op16 (0x80, umult_i)
+  op   (0x90, sbk)
+  op4  (0x91, link)
+  op   (0x95, sex)
+  op   (0x96, div2)
+  op   (0x97, ror)
+  op6  (0x98, ljmp_r)
+  op   (0x9e, lob)
+  op   (0x9f, lmult)
+  op16 (0xa0, lms_r)
+  op16 (0xb0, from_r)
+  op   (0xc0, hib)
+  op15h(0xc1, xor_i)
+  op15l(0xd0, inc_r)
+  op   (0xdf, romb)
+  op15l(0xe0, dec_r)
+  op   (0xef, getbs)
+  op16 (0xf0, lm_r)
+  #undef op
+
+  #undef op4
+  #undef op6
+  #undef op12
+  #undef op15l
+  #undef op15h
+  #undef op16
+}
+
+#endif

asnes/chip/superfx/core/opcodes.cpp

@@ -0,0 +1,661 @@
+#ifdef SUPERFX_CPP
+
+//$00 stop
+void SuperFX::op_stop() {
+  if(regs.cfgr.irq == 0) {
+    regs.sfr.irq = 1;
+    cpu.regs.irq = 1;
+  }
+
+  regs.sfr.g = 0;
+  regs.pipeline = 0x01;
+  regs.reset();
+}
+
+//$01 nop
+void SuperFX::op_nop() {
+  regs.reset();
+}
+
+//$02 cache
+void SuperFX::op_cache() {
+  if(regs.cbr != (regs.r[15] & 0xfff0)) {
+    regs.cbr = regs.r[15] & 0xfff0;
+    cache_flush();
+  }
+  regs.reset();
+}
+
+//$03 lsr
+void SuperFX::op_lsr() {
+  regs.sfr.cy = (regs.sr() & 1);
+  regs.dr() = regs.sr() >> 1;
+  regs.sfr.s = (regs.dr() & 0x8000);
+  regs.sfr.z = (regs.dr() == 0);
+  regs.reset();
+}
+
+//$04 rol
+void SuperFX::op_rol() {
+  bool carry = (regs.sr() & 0x8000);
+  regs.dr() = (regs.sr() << 1) | regs.sfr.cy;
+  regs.sfr.s  = (regs.dr() & 0x8000);
+  regs.sfr.cy = carry;
+  regs.sfr.z  = (regs.dr() == 0);
+  regs.reset();
+}
+
+//$05 bra e
+void SuperFX::op_bra() {
+  regs.r[15] += (int8)pipe();
+}
+
+//$06 blt e
+void SuperFX::op_blt() {
+  int e = (int8)pipe();
+  if((regs.sfr.s ^ regs.sfr.ov) == 0) regs.r[15] += e;
+}
+
+//$07 bge e
+void SuperFX::op_bge() {
+  int e = (int8)pipe();
+  if((regs.sfr.s ^ regs.sfr.ov) == 1) regs.r[15] += e;
+}
+
+//$08 bne e
+void SuperFX::op_bne() {
+  int e = (int8)pipe();
+  if(regs.sfr.z == 0) regs.r[15] += e;
+}
+
+//$09 beq e
+void SuperFX::op_beq() {
+  int e = (int8)pipe();
+  if(regs.sfr.z == 1) regs.r[15] += e;
+}
+
+//$0a bpl e
+void SuperFX::op_bpl() {
+  int e = (int8)pipe();
+  if(regs.sfr.s == 0) regs.r[15] += e;
+}
+
+//$0b bmi e
+void SuperFX::op_bmi() {
+  int e = (int8)pipe();
+  if(regs.sfr.s == 1) regs.r[15] += e;
+}
+
+//$0c bcc e
+void SuperFX::op_bcc() {
+  int e = (int8)pipe();
+  if(regs.sfr.cy == 0) regs.r[15] += e;
+}
+
+//$0d bcs e
+void SuperFX::op_bcs() {
+  int e = (int8)pipe();
+  if(regs.sfr.cy == 1) regs.r[15] += e;
+}
+
+//$0e bvc e
+void SuperFX::op_bvc() {
+  int e = (int8)pipe();
+  if(regs.sfr.ov == 0) regs.r[15] += e;
+}
+
+//$0f bvs e
+void SuperFX::op_bvs() {
+  int e = (int8)pipe();
+  if(regs.sfr.ov == 1) regs.r[15] += e;
+}
+
+//$10-1f(b0): to rN
+//$10-1f(b1): move rN
+template<int n> void SuperFX::op_to_r() {
+  if(regs.sfr.b == 0) {
+    regs.dreg = n;
+  } else {
+    regs.r[n] = regs.sr();
+    regs.reset();
+  }
+}
+
+//$20-2f: with rN
+template<int n> void SuperFX::op_with_r() {
+  regs.sreg = n;
+  regs.dreg = n;
+  regs.sfr.b = 1;
+}
+
+//$30-3b(alt0): stw (rN)
+template<int n> void SuperFX::op_stw_ir() {
+  regs.ramaddr = regs.r[n];
+  rambuffer_write(regs.ramaddr ^ 0, regs.sr() >> 0);
+  rambuffer_write(regs.ramaddr ^ 1, regs.sr() >> 8);
+  regs.reset();
+}
+
+//$30-3b(alt1): stb (rN)
+template<int n> void SuperFX::op_stb_ir() {
+  regs.ramaddr = regs.r[n];
+  rambuffer_write(regs.ramaddr, regs.sr());
+  regs.reset();
+}
+
+//$3c loop
+void SuperFX::op_loop() {
+  regs.r[12]--;
+  regs.sfr.s = (regs.r[12] & 0x8000);
+  regs.sfr.z = (regs.r[12] == 0);
+  if(!regs.sfr.z) regs.r[15] = regs.r[13];
+  regs.reset();
+}
+
+//$3d alt1
+void SuperFX::op_alt1() {
+  regs.sfr.b = 0;
+  regs.sfr.alt1 = 1;
+}
+
+//$3e alt2
+void SuperFX::op_alt2() {
+  regs.sfr.b = 0;
+  regs.sfr.alt2 = 1;
+}
+
+//$3f alt3
+void SuperFX::op_alt3() {
+  regs.sfr.b = 0;
+  regs.sfr.alt1 = 1;
+  regs.sfr.alt2 = 1;
+}
+
+//$40-4b(alt0): ldw (rN)
+template<int n> void SuperFX::op_ldw_ir() {
+  regs.ramaddr = regs.r[n];
+  uint16_t data;
+  data  = rambuffer_read(regs.ramaddr ^ 0) << 0;
+  data |= rambuffer_read(regs.ramaddr ^ 1) << 8;
+  regs.dr() = data;
+  regs.reset();
+}
+
+//$40-4b(alt1): ldb (rN)
+template<int n> void SuperFX::op_ldb_ir() {
+  regs.ramaddr = regs.r[n];
+  regs.dr() = rambuffer_read(regs.ramaddr);
+  regs.reset();
+}
+
+//$4c(alt0): plot
+void SuperFX::op_plot() {
+  plot(regs.r[1], regs.r[2]);
+  regs.r[1]++;
+  regs.reset();
+}
+
+//$4c(alt1): rpix
+void SuperFX::op_rpix() {
+  regs.dr() = rpix(regs.r[1], regs.r[2]);
+  regs.sfr.s = (regs.dr() & 0x8000);
+  regs.sfr.z = (regs.dr() == 0);
+  regs.reset();
+}
+
+//$4d: swap
+void SuperFX::op_swap() {
+  regs.dr() = (regs.sr() >> 8) | (regs.sr() << 8);
+  regs.sfr.s = (regs.dr() & 0x8000);
+  regs.sfr.z = (regs.dr() == 0);
+  regs.reset();
+}
+
+//$4e(alt0): color
+void SuperFX::op_color() {
+  regs.colr = color(regs.sr());
+  regs.reset();
+}
+
+//$4e(alt1): cmode
+void SuperFX::op_cmode() {
+  regs.por = regs.sr();
+  regs.reset();
+}
+
+//$4f: not
+void SuperFX::op_not() {
+  regs.dr() = ~regs.sr();
+  regs.sfr.s = (regs.dr() & 0x8000);
+  regs.sfr.z = (regs.dr() == 0);
+  regs.reset();
+}
+
+//$50-5f(alt0): add rN
+template<int n> void SuperFX::op_add_r() {
+  int r = regs.sr() + regs.r[n];
+  regs.sfr.ov = ~(regs.sr() ^ regs.r[n]) & (regs.r[n] ^ r) & 0x8000;
+  regs.sfr.s  = (r & 0x8000);
+  regs.sfr.cy = (r >= 0x10000);
+  regs.sfr.z  = ((uint16_t)r == 0);
+  regs.dr() = r;
+  regs.reset();
+}
+
+//$50-5f(alt1): adc rN
+template<int n> void SuperFX::op_adc_r() {
+  int r = regs.sr() + regs.r[n] + regs.sfr.cy;
+  regs.sfr.ov = ~(regs.sr() ^ regs.r[n]) & (regs.r[n] ^ r) & 0x8000;
+  regs.sfr.s  = (r & 0x8000);
+  regs.sfr.cy = (r >= 0x10000);
+  regs.sfr.z  = ((uint16_t)r == 0);
+  regs.dr() = r;
+  regs.reset();
+}
+
+//$50-5f(alt2): add #N
+template<int n> void SuperFX::op_add_i() {
+  int r = regs.sr() + n;
+  regs.sfr.ov = ~(regs.sr() ^ n) & (n ^ r) & 0x8000;
+  regs.sfr.s  = (r & 0x8000);
+  regs.sfr.cy = (r >= 0x10000);
+  regs.sfr.z  = ((uint16_t)r == 0);
+  regs.dr() = r;
+  regs.reset();
+}
+
+//$50-5f(alt3): adc #N
+template<int n> void SuperFX::op_adc_i() {
+  int r = regs.sr() + n + regs.sfr.cy;
+  regs.sfr.ov = ~(regs.sr() ^ n) & (n ^ r) & 0x8000;
+  regs.sfr.s  = (r & 0x8000);
+  regs.sfr.cy = (r >= 0x10000);
+  regs.sfr.z  = ((uint16_t)r == 0);
+  regs.dr() = r;
+  regs.reset();
+}
+
+//$60-6f(alt0): sub rN
+template<int n> void SuperFX::op_sub_r() {
+  int r = regs.sr() - regs.r[n];
+  regs.sfr.ov = (regs.sr() ^ regs.r[n]) & (regs.sr() ^ r) & 0x8000;
+  regs.sfr.s  = (r & 0x8000);
+  regs.sfr.cy = (r >= 0);
+  regs.sfr.z  = ((uint16_t)r == 0);
+  regs.dr() = r;
+  regs.reset();
+}
+
+//$60-6f(alt1): sbc rN
+template<int n> void SuperFX::op_sbc_r() {
+  int r = regs.sr() - regs.r[n] - !regs.sfr.cy;
+  regs.sfr.ov = (regs.sr() ^ regs.r[n]) & (regs.sr() ^ r) & 0x8000;
+  regs.sfr.s  = (r & 0x8000);
+  regs.sfr.cy = (r >= 0);
+  regs.sfr.z  = ((uint16_t)r == 0);
+  regs.dr() = r;
+  regs.reset();
+}
+
+//$60-6f(alt2): sub #N
+template<int n> void SuperFX::op_sub_i() {
+  int r = regs.sr() - n;
+  regs.sfr.ov = (regs.sr() ^ n) & (regs.sr() ^ r) & 0x8000;
+  regs.sfr.s  = (r & 0x8000);
+  regs.sfr.cy = (r >= 0);
+  regs.sfr.z  = ((uint16_t)r == 0);
+  regs.dr() = r;
+  regs.reset();
+}
+
+//$60-6f(alt3): cmp rN
+template<int n> void SuperFX::op_cmp_r() {
+  int r = regs.sr() - regs.r[n];
+  regs.sfr.ov = (regs.sr() ^ regs.r[n]) & (regs.sr() ^ r) & 0x8000;
+  regs.sfr.s  = (r & 0x8000);
+  regs.sfr.cy = (r >= 0);
+  regs.sfr.z  = ((uint16_t)r == 0);
+  regs.reset();
+}
+
+//$70: merge
+void SuperFX::op_merge() {
+  regs.dr() = (regs.r[7] & 0xff00) | (regs.r[8] >> 8);
+  regs.sfr.ov = (regs.dr() & 0xc0c0);
+  regs.sfr.s  = (regs.dr() & 0x8080);
+  regs.sfr.cy = (regs.dr() & 0xe0e0);
+  regs.sfr.z  = (regs.dr() & 0xf0f0);
+  regs.reset();
+}
+
+//$71-7f(alt0): and rN
+template<int n> void SuperFX::op_and_r() {
+  regs.dr() = regs.sr() & regs.r[n];
+  regs.sfr.s = (regs.dr() & 0x8000);
+  regs.sfr.z = (regs.dr() == 0);
+  regs.reset();
+}
+
+//$71-7f(alt1): bic rN
+template<int n> void SuperFX::op_bic_r() {
+  regs.dr() = regs.sr() & ~regs.r[n];
+  regs.sfr.s = (regs.dr() & 0x8000);
+  regs.sfr.z = (regs.dr() == 0);
+  regs.reset();
+}
+
+//$71-7f(alt2): and #N
+template<int n> void SuperFX::op_and_i() {
+  regs.dr() = regs.sr() & n;
+  regs.sfr.s = (regs.dr() & 0x8000);
+  regs.sfr.z = (regs.dr() == 0);
+  regs.reset();
+}
+
+//$71-7f(alt3): bic #N
+template<int n> void SuperFX::op_bic_i() {
+  regs.dr() = regs.sr() & ~n;
+  regs.sfr.s = (regs.dr() & 0x8000);
+  regs.sfr.z = (regs.dr() == 0);
+  regs.reset();
+}
+
+//$80-8f(alt0): mult rN
+template<int n> void SuperFX::op_mult_r() {
+  regs.dr() = (int8)regs.sr() * (int8)regs.r[n];
+  regs.sfr.s = (regs.dr() & 0x8000);
+  regs.sfr.z = (regs.dr() == 0);
+  regs.reset();
+  if(!regs.cfgr.ms0) add_clocks(2);
+}
+
+//$80-8f(alt1): umult rN
+template<int n> void SuperFX::op_umult_r() {
+  regs.dr() = (uint8)regs.sr() * (uint8)regs.r[n];
+  regs.sfr.s = (regs.dr() & 0x8000);
+  regs.sfr.z = (regs.dr() == 0);
+  regs.reset();
+  if(!regs.cfgr.ms0) add_clocks(2);
+}
+
+//$80-8f(alt2): mult #N
+template<int n> void SuperFX::op_mult_i() {
+  regs.dr() = (int8)regs.sr() * (int8)n;
+  regs.sfr.s = (regs.dr() & 0x8000);
+  regs.sfr.z = (regs.dr() == 0);
+  regs.reset();
+  if(!regs.cfgr.ms0) add_clocks(2);
+}
+
+//$80-8f(alt3): umult #N
+template<int n> void SuperFX::op_umult_i() {
+  regs.dr() = (uint8)regs.sr() * (uint8)n;
+  regs.sfr.s = (regs.dr() & 0x8000);
+  regs.sfr.z = (regs.dr() == 0);
+  regs.reset();
+  if(!regs.cfgr.ms0) add_clocks(2);
+}
+
+//$90: sbk
+void SuperFX::op_sbk() {
+  rambuffer_write(regs.ramaddr ^ 0, regs.sr() >> 0);
+  rambuffer_write(regs.ramaddr ^ 1, regs.sr() >> 8);
+  regs.reset();
+}
+
+//$91-94: link #N
+template<int n> void SuperFX::op_link() {
+  regs.r[11] = regs.r[15] + n;
+  regs.reset();
+}
+
+//$95: sex
+void SuperFX::op_sex() {
+  regs.dr() = (int8)regs.sr();
+  regs.sfr.s = (regs.dr() & 0x8000);
+  regs.sfr.z = (regs.dr() == 0);
+  regs.reset();
+}
+
+//$96(alt0): asr
+void SuperFX::op_asr() {
+  regs.sfr.cy = (regs.sr() & 1);
+  regs.dr() = (int16_t)regs.sr() >> 1;
+  regs.sfr.s = (regs.dr() & 0x8000);
+  regs.sfr.z = (regs.dr() == 0);
+  regs.reset();
+}
+
+//$96(alt1): div2
+void SuperFX::op_div2() {
+  regs.sfr.cy = (regs.sr() & 1);
+  regs.dr() = ((int16_t)regs.sr() >> 1) + ((regs.sr() + 1) >> 16);
+  regs.sfr.s = (regs.dr() & 0x8000);
+  regs.sfr.z = (regs.dr() == 0);
+  regs.reset();
+}
+
+//$97: ror
+void SuperFX::op_ror() {
+  bool carry = (regs.sr() & 1);
+  regs.dr() = (regs.sfr.cy << 15) | (regs.sr() >> 1);
+  regs.sfr.s  = (regs.dr() & 0x8000);
+  regs.sfr.cy = carry;
+  regs.sfr.z  = (regs.dr() == 0);
+  regs.reset();
+}
+
+//$98-9d(alt0): jmp rN
+template<int n> void SuperFX::op_jmp_r() {
+  regs.r[15] = regs.r[n];
+  regs.reset();
+}
+
+//$98-9d(alt1): ljmp rN
+template<int n> void SuperFX::op_ljmp_r() {
+  regs.pbr = regs.r[n] & 0x7f;
+  regs.r[15] = regs.sr();
+  regs.cbr = regs.r[15] & 0xfff0;
+  cache_flush();
+  regs.reset();
+}
+
+//$9e: lob
+void SuperFX::op_lob() {
+  regs.dr() = regs.sr() & 0xff;
+  regs.sfr.s = (regs.dr() & 0x80);
+  regs.sfr.z = (regs.dr() == 0);
+  regs.reset();
+}
+
+//$9f(alt0): fmult
+void SuperFX::op_fmult() {
+  uint32_t result = (int16_t)regs.sr() * (int16_t)regs.r[6];
+  regs.dr() = result >> 16;
+  regs.sfr.s  = (regs.dr() & 0x8000);
+  regs.sfr.cy = (result & 0x8000);
+  regs.sfr.z  = (regs.dr() == 0);
+  regs.reset();
+  add_clocks(4 + (regs.cfgr.ms0 << 2));
+}
+
+//$9f(alt1): lmult
+void SuperFX::op_lmult() {
+  uint32_t result = (int16_t)regs.sr() * (int16_t)regs.r[6];
+  regs.r[4] = result;
+  regs.dr() = result >> 16;
+  regs.sfr.s  = (regs.dr() & 0x8000);
+  regs.sfr.cy = (result & 0x8000);
+  regs.sfr.z  = (regs.dr() == 0);
+  regs.reset();
+  add_clocks(4 + (regs.cfgr.ms0 << 2));
+}
+
+//$a0-af(alt0): ibt rN,#pp
+template<int n> void SuperFX::op_ibt_r() {
+  regs.r[n] = (int8)pipe();
+  regs.reset();
+}
+
+//$a0-af(alt1): lms rN,(yy)
+template<int n> void SuperFX::op_lms_r() {
+  regs.ramaddr = pipe() << 1;
+  uint16_t data;
+  data  = rambuffer_read(regs.ramaddr ^ 0) << 0;
+  data |= rambuffer_read(regs.ramaddr ^ 1) << 8;
+  regs.r[n] = data;
+  regs.reset();
+}
+
+//$a0-af(alt2): sms (yy),rN
+template<int n> void SuperFX::op_sms_r() {
+  regs.ramaddr = pipe() << 1;
+  rambuffer_write(regs.ramaddr ^ 0, regs.r[n] >> 0);
+  rambuffer_write(regs.ramaddr ^ 1, regs.r[n] >> 8);
+  regs.reset();
+}
+
+//$b0-bf(b0): from rN
+//$b0-bf(b1): moves rN
+template<int n> void SuperFX::op_from_r() {
+  if(regs.sfr.b == 0) {
+    regs.sreg = n;
+  } else {
+    regs.dr() = regs.r[n];
+    regs.sfr.ov = (regs.dr() & 0x80);
+    regs.sfr.s  = (regs.dr() & 0x8000);
+    regs.sfr.z  = (regs.dr() == 0);
+    regs.reset();
+  }
+}
+
+//$c0: hib
+void SuperFX::op_hib() {
+  regs.dr() = regs.sr() >> 8;
+  regs.sfr.s = (regs.dr() & 0x80);
+  regs.sfr.z = (regs.dr() == 0);
+  regs.reset();
+}
+
+//$c1-cf(alt0): or rN
+template<int n> void SuperFX::op_or_r() {
+  regs.dr() = regs.sr() | regs.r[n];
+  regs.sfr.s = (regs.dr() & 0x8000);
+  regs.sfr.z = (regs.dr() == 0);
+  regs.reset();
+}
+
+//$c1-cf(alt1): xor rN
+template<int n> void SuperFX::op_xor_r() {
+  regs.dr() = regs.sr() ^ regs.r[n];
+  regs.sfr.s = (regs.dr() & 0x8000);
+  regs.sfr.z = (regs.dr() == 0);
+  regs.reset();
+}
+
+//$c1-cf(alt2): or #N
+template<int n> void SuperFX::op_or_i() {
+  regs.dr() = regs.sr() | n;
+  regs.sfr.s = (regs.dr() & 0x8000);
+  regs.sfr.z = (regs.dr() == 0);
+  regs.reset();
+}
+
+//$c1-cf(alt3): xor #N
+template<int n> void SuperFX::op_xor_i() {
+  regs.dr() = regs.sr() ^ n;
+  regs.sfr.s = (regs.dr() & 0x8000);
+  regs.sfr.z = (regs.dr() == 0);
+  regs.reset();
+}
+
+//$d0-de: inc rN
+template<int n> void SuperFX::op_inc_r() {
+  regs.r[n]++;
+  regs.sfr.s = (regs.r[n] & 0x8000);
+  regs.sfr.z = (regs.r[n] == 0);
+  regs.reset();
+}
+
+//$df(alt0): getc
+void SuperFX::op_getc() {
+  regs.colr = color(rombuffer_read());
+  regs.reset();
+}
+
+//$df(alt2): ramb
+void SuperFX::op_ramb() {
+  rambuffer_sync();
+  regs.rambr = regs.sr();
+  regs.reset();
+}
+
+//$df(alt3): romb
+void SuperFX::op_romb() {
+  rombuffer_sync();
+  regs.rombr = regs.sr() & 0x7f;
+  regs.reset();
+}
+
+//$e0-ee: dec rN
+template<int n> void SuperFX::op_dec_r() {
+  regs.r[n]--;
+  regs.sfr.s = (regs.r[n] & 0x8000);
+  regs.sfr.z = (regs.r[n] == 0);
+  regs.reset();
+}
+
+//$ef(alt0): getb
+void SuperFX::op_getb() {
+  regs.dr() = rombuffer_read();
+  regs.reset();
+}
+
+//$ef(alt1): getbh
+void SuperFX::op_getbh() {
+  regs.dr() = (rombuffer_read() << 8) | (regs.sr() & 0x00ff);
+  regs.reset();
+}
+
+//$ef(alt2): getbl
+void SuperFX::op_getbl() {
+  regs.dr() = (regs.sr() & 0xff00) | (rombuffer_read() << 0);
+  regs.reset();
+}
+
+//$ef(alt3): getbs
+void SuperFX::op_getbs() {
+  regs.dr() = (int8)rombuffer_read();
+  regs.reset();
+}
+
+//$f0-ff(alt0): iwt rN,#xx
+template<int n> void SuperFX::op_iwt_r() {
+  uint16_t data;
+  data  = pipe() << 0;
+  data |= pipe() << 8;
+  regs.r[n] = data;
+  regs.reset();
+}
+
+//$f0-ff(alt1): lm rN,(xx)
+template<int n> void SuperFX::op_lm_r() {
+  regs.ramaddr  = pipe() << 0;
+  regs.ramaddr |= pipe() << 8;
+  uint16_t data;
+  data  = rambuffer_read(regs.ramaddr ^ 0) << 0;
+  data |= rambuffer_read(regs.ramaddr ^ 1) << 8;
+  regs.r[n] = data;
+  regs.reset();
+}
+
+//$f0-ff(alt2): sm (xx),rN
+template<int n> void SuperFX::op_sm_r() {
+  regs.ramaddr  = pipe() << 0;
+  regs.ramaddr |= pipe() << 8;
+  rambuffer_write(regs.ramaddr ^ 0, regs.r[n] >> 0);
+  rambuffer_write(regs.ramaddr ^ 1, regs.r[n] >> 8);
+  regs.reset();
+}
+
+#endif

asnes/chip/superfx/core/registers.hpp

@@ -0,0 +1,176 @@
+//accepts a callback binding so r14 writes can trigger ROM buffering transparently
+struct reg16_t {
+  uint16 data;
+  function<void (uint16)> on_modify;
+
+  inline operator unsigned() const { return data; }
+  inline uint16 assign(uint16 i) {
+    if(on_modify) on_modify(i);
+    else data = i;
+    return data;
+  }
+
+  inline unsigned operator++() { return assign(data + 1); }
+  inline unsigned operator--() { return assign(data - 1); }
+  inline unsigned operator++(int) { unsigned r = data; assign(data + 1); return r; }
+  inline unsigned operator--(int) { unsigned r = data; assign(data - 1); return r; }
+  inline unsigned operator   = (unsigned i) { return assign(i); }
+  inline unsigned operator  |= (unsigned i) { return assign(data | i); }
+  inline unsigned operator  ^= (unsigned i) { return assign(data ^ i); }
+  inline unsigned operator  &= (unsigned i) { return assign(data & i); }
+  inline unsigned operator <<= (unsigned i) { return assign(data << i); }
+  inline unsigned operator >>= (unsigned i) { return assign(data >> i); }
+  inline unsigned operator  += (unsigned i) { return assign(data + i); }
+  inline unsigned operator  -= (unsigned i) { return assign(data - i); }
+  inline unsigned operator  *= (unsigned i) { return assign(data * i); }
+  inline unsigned operator  /= (unsigned i) { return assign(data / i); }
+  inline unsigned operator  %= (unsigned i) { return assign(data % i); }
+
+  inline unsigned operator   = (const reg16_t& i) { return assign(i); }
+
+  reg16_t() : data(0) {}
+  reg16_t(const reg16_t&) = delete;
+};
+
+struct sfr_t {
+  bool irq;   //interrupt flag
+  bool b;     //WITH flag
+  bool ih;    //immediate higher 8-bit flag
+  bool il;    //immediate lower 8-bit flag
+  bool alt2;  //ALT2 mode
+  bool alt1;  //ALT2 instruction mode
+  bool r;     //ROM r14 read flag
+  bool g;     //GO flag
+  bool ov;    //overflow flag
+  bool s;     //sign flag
+  bool cy;    //carry flag
+  bool z;     //zero flag
+
+  operator unsigned() const {
+    return (irq << 15) | (b << 12) | (ih << 11) | (il << 10) | (alt2 << 9) | (alt1 << 8)
+         | (r << 6) | (g << 5) | (ov << 4) | (s << 3) | (cy << 2) | (z << 1);
+  }
+
+  sfr_t& operator=(uint16_t data) {
+    irq  = data & 0x8000;
+    b    = data & 0x1000;
+    ih   = data & 0x0800;
+    il   = data & 0x0400;
+    alt2 = data & 0x0200;
+    alt1 = data & 0x0100;
+    r    = data & 0x0040;
+    g    = data & 0x0020;
+    ov   = data & 0x0010;
+    s    = data & 0x0008;
+    cy   = data & 0x0004;
+    z    = data & 0x0002;
+    return *this;
+  }
+};
+
+struct scmr_t {
+  unsigned ht;
+  bool ron;
+  bool ran;
+  unsigned md;
+
+  operator unsigned() const {
+    return ((ht >> 1) << 5) | (ron << 4) | (ran << 3) | ((ht & 1) << 2) | (md);
+  }
+
+  scmr_t& operator=(uint8 data) {
+    ht  = (bool)(data & 0x20) << 1;
+    ht |= (bool)(data & 0x04) << 0;
+    ron = data & 0x10;
+    ran = data & 0x08;
+    md  = data & 0x03;
+    return *this;
+  }
+};
+
+struct por_t {
+  bool obj;
+  bool freezehigh;
+  bool highnibble;
+  bool dither;
+  bool transparent;
+
+  operator unsigned() const {
+    return (obj << 4) | (freezehigh << 3) | (highnibble << 2) | (dither << 1) | (transparent);
+  }
+
+  por_t& operator=(uint8 data) {
+    obj         = data & 0x10;
+    freezehigh  = data & 0x08;
+    highnibble  = data & 0x04;
+    dither      = data & 0x02;
+    transparent = data & 0x01;
+    return *this;
+  }
+};
+
+struct cfgr_t {
+  bool irq;
+  bool ms0;
+
+  operator unsigned() const {
+    return (irq << 7) | (ms0 << 5);
+  }
+
+  cfgr_t& operator=(uint8 data) {
+    irq = data & 0x80;
+    ms0 = data & 0x20;
+    return *this;
+  }
+};
+
+struct regs_t {
+  uint8 pipeline;
+  uint16 ramaddr;
+
+  reg16_t r[16];    //general purpose registers
+  sfr_t sfr;        //status flag register
+  uint8 pbr;        //program bank register
+  uint8 rombr;      //game pack ROM bank register
+  bool rambr;       //game pack RAM bank register
+  uint16 cbr;       //cache base register
+  uint8 scbr;       //screen base register
+  scmr_t scmr;      //screen mode register
+  uint8 colr;       //color register
+  por_t por;        //plot option register
+  bool bramr;       //back-up RAM register
+  uint8 vcr;        //version code register
+  cfgr_t cfgr;      //config register
+  bool clsr;        //clock select register
+
+  unsigned romcl;   //clock ticks until romdr is valid
+  uint8 romdr;      //ROM buffer data register
+
+  unsigned ramcl;   //clock ticks until ramdr is valid
+  uint16 ramar;     //RAM buffer address register
+  uint8 ramdr;      //RAM buffer data register
+
+  unsigned sreg, dreg;
+  reg16_t& sr() { return r[sreg]; }  //source register (from)
+  reg16_t& dr() { return r[dreg]; }  //destination register (to)
+
+  void reset() {
+    sfr.b    = 0;
+    sfr.alt1 = 0;
+    sfr.alt2 = 0;
+
+    sreg = 0;
+    dreg = 0;
+  }
+} regs;
+
+struct cache_t {
+  uint8 buffer[512];
+  bool valid[32];
+} cache;
+
+struct pixelcache_t {
+  uint16 offset;
+  uint8 bitpend;
+  uint8 data[8];
+} pixelcache[2];

asnes/chip/superfx/disasm/disasm.cpp

@@ -0,0 +1,279 @@
+#ifdef SUPERFX_CPP
+
+void SuperFX::disassemble_opcode(char *output) {
+  *output = 0;
+
+  if(!regs.sfr.alt2) {
+    if(!regs.sfr.alt1) {
+      disassemble_alt0(output);
+    } else {
+      disassemble_alt1(output);
+    }
+  } else {
+    if(!regs.sfr.alt1) {
+      disassemble_alt2(output);
+    } else {
+      disassemble_alt3(output);
+    }
+  }
+
+  unsigned length = strlen(output);
+  while(length++ < 20) strcat(output, " ");
+}
+
+#define case4(id) \
+  case id+ 0: case id+ 1: case id+ 2: case id+ 3
+#define case6(id) \
+  case id+ 0: case id+ 1: case id+ 2: case id+ 3: case id+ 4: case id+ 5
+#define case12(id) \
+  case id+ 0: case id+ 1: case id+ 2: case id+ 3: case id+ 4: case id+ 5: case id+ 6: case id+ 7: \
+  case id+ 8: case id+ 9: case id+10: case id+11
+#define case15(id) \
+  case id+ 0: case id+ 1: case id+ 2: case id+ 3: case id+ 4: case id+ 5: case id+ 6: case id+ 7: \
+  case id+ 8: case id+ 9: case id+10: case id+11: case id+12: case id+13: case id+14
+#define case16(id) \
+  case id+ 0: case id+ 1: case id+ 2: case id+ 3: case id+ 4: case id+ 5: case id+ 6: case id+ 7: \
+  case id+ 8: case id+ 9: case id+10: case id+11: case id+12: case id+13: case id+14: case id+15
+
+#define op0 regs.pipeline
+#define op1 superfxbus.read((regs.pbr << 16) + regs.r[15] + 0)
+#define op2 superfxbus.read((regs.pbr << 16) + regs.r[15] + 1)
+
+void SuperFX::disassemble_alt0(char *output) {
+  char t[256] = "";
+  switch(op0) {
+    case  (0x00): sprintf(t, "stop"); break;
+    case  (0x01): sprintf(t, "nop"); break;
+    case  (0x02): sprintf(t, "cache"); break;
+    case  (0x03): sprintf(t, "lsr"); break;
+    case  (0x04): sprintf(t, "rol"); break;
+    case  (0x05): sprintf(t, "bra %+d", (int8_t)op1); break;
+    case  (0x06): sprintf(t, "blt %+d", (int8_t)op1); break;
+    case  (0x07): sprintf(t, "bge %+d", (int8_t)op1); break;
+    case  (0x08): sprintf(t, "bne %+d", (int8_t)op1); break;
+    case  (0x09): sprintf(t, "beq %+d", (int8_t)op1); break;
+    case  (0x0a): sprintf(t, "bpl %+d", (int8_t)op1); break;
+    case  (0x0b): sprintf(t, "bmi %+d", (int8_t)op1); break;
+    case  (0x0c): sprintf(t, "bcc %+d", (int8_t)op1); break;
+    case  (0x0d): sprintf(t, "bcs %+d", (int8_t)op1); break;
+    case  (0x0e): sprintf(t, "bvc %+d", (int8_t)op1); break;
+    case  (0x0f): sprintf(t, "bvs %+d", (int8_t)op1); break;
+    case16(0x10): sprintf(t, "to r%u", op0 & 15); break;
+    case16(0x20): sprintf(t, "with r%u", op0 & 15); break;
+    case12(0x30): sprintf(t, "stw (r%u)", op0 & 15); break;
+    case  (0x3c): sprintf(t, "loop"); break;
+    case  (0x3d): sprintf(t, "alt1"); break;
+    case  (0x3e): sprintf(t, "alt2"); break;
+    case  (0x3f): sprintf(t, "alt3"); break;
+    case12(0x40): sprintf(t, "ldw (r%u)", op0 & 15); break;
+    case  (0x4c): sprintf(t, "plot"); break;
+    case  (0x4d): sprintf(t, "swap"); break;
+    case  (0x4e): sprintf(t, "color"); break;
+    case  (0x4f): sprintf(t, "not"); break;
+    case16(0x50): sprintf(t, "add r%u", op0 & 15); break;
+    case16(0x60): sprintf(t, "sub r%u", op0 & 15); break;
+    case  (0x70): sprintf(t, "merge"); break;
+    case15(0x71): sprintf(t, "and r%u", op0 & 15); break;
+    case16(0x80): sprintf(t, "mult r%u", op0 & 15); break;
+    case  (0x90): sprintf(t, "sbk"); break;
+    case4 (0x91): sprintf(t, "link #%u", op0 & 15); break;
+    case  (0x95): sprintf(t, "sex"); break;
+    case  (0x96): sprintf(t, "asr"); break;
+    case  (0x97): sprintf(t, "ror"); break;
+    case6 (0x98): sprintf(t, "jmp r%u", op0 & 15); break;
+    case  (0x9e): sprintf(t, "lob"); break;
+    case  (0x9f): sprintf(t, "fmult"); break;
+    case16(0xa0): sprintf(t, "ibt r%u,#$%.2x", op0 & 15, op1); break;
+    case16(0xb0): sprintf(t, "from r%u", op0 & 15); break;
+    case  (0xc0): sprintf(t, "hib");
+    case15(0xc1): sprintf(t, "or r%u", op0 & 15); break;
+    case15(0xd0): sprintf(t, "inc r%u", op0 & 15); break;
+    case  (0xdf): sprintf(t, "getc"); break;
+    case15(0xe0): sprintf(t, "dec r%u", op0 & 15); break;
+    case  (0xef): sprintf(t, "getb"); break;
+    case16(0xf0): sprintf(t, "iwt r%u,#$%.2x%.2x", op0 & 15, op2, op1); break;
+  }
+  strcat(output, t);
+}
+
+void SuperFX::disassemble_alt1(char *output) {
+  char t[256] = "";
+  switch(op0) {
+    case  (0x00): sprintf(t, "stop"); break;
+    case  (0x01): sprintf(t, "nop"); break;
+    case  (0x02): sprintf(t, "cache"); break;
+    case  (0x03): sprintf(t, "lsr"); break;
+    case  (0x04): sprintf(t, "rol"); break;
+    case  (0x05): sprintf(t, "bra %+d", (int8_t)op1); break;
+    case  (0x06): sprintf(t, "blt %+d", (int8_t)op1); break;
+    case  (0x07): sprintf(t, "bge %+d", (int8_t)op1); break;
+    case  (0x08): sprintf(t, "bne %+d", (int8_t)op1); break;
+    case  (0x09): sprintf(t, "beq %+d", (int8_t)op1); break;
+    case  (0x0a): sprintf(t, "bpl %+d", (int8_t)op1); break;
+    case  (0x0b): sprintf(t, "bmi %+d", (int8_t)op1); break;
+    case  (0x0c): sprintf(t, "bcc %+d", (int8_t)op1); break;
+    case  (0x0d): sprintf(t, "bcs %+d", (int8_t)op1); break;
+    case  (0x0e): sprintf(t, "bvc %+d", (int8_t)op1); break;
+    case  (0x0f): sprintf(t, "bvs %+d", (int8_t)op1); break;
+    case16(0x10): sprintf(t, "to r%u", op0 & 15); break;
+    case16(0x20): sprintf(t, "with r%u", op0 & 15); break;
+    case12(0x30): sprintf(t, "stb (r%u)", op0 & 15); break;
+    case  (0x3c): sprintf(t, "loop"); break;
+    case  (0x3d): sprintf(t, "alt1"); break;
+    case  (0x3e): sprintf(t, "alt2"); break;
+    case  (0x3f): sprintf(t, "alt3"); break;
+    case12(0x40): sprintf(t, "ldb (r%u)", op0 & 15); break;
+    case  (0x4c): sprintf(t, "rpix"); break;
+    case  (0x4d): sprintf(t, "swap"); break;
+    case  (0x4e): sprintf(t, "cmode"); break;
+    case  (0x4f): sprintf(t, "not"); break;
+    case16(0x50): sprintf(t, "adc r%u", op0 & 15); break;
+    case16(0x60): sprintf(t, "sbc r%u", op0 & 15); break;
+    case  (0x70): sprintf(t, "merge"); break;
+    case15(0x71): sprintf(t, "bic r%u", op0 & 15); break;
+    case16(0x80): sprintf(t, "umult r%u", op0 & 15); break;
+    case  (0x90): sprintf(t, "sbk"); break;
+    case4 (0x91): sprintf(t, "link #%u", op0 & 15); break;
+    case  (0x95): sprintf(t, "sex"); break;
+    case  (0x96): sprintf(t, "div2"); break;
+    case  (0x97): sprintf(t, "ror"); break;
+    case6 (0x98): sprintf(t, "ljmp r%u", op0 & 15); break;
+    case  (0x9e): sprintf(t, "lob"); break;
+    case  (0x9f): sprintf(t, "lmult"); break;
+    case16(0xa0): sprintf(t, "lms r%u,(#$%.4x)", op0 & 15, op1 << 1); break;
+    case16(0xb0): sprintf(t, "from r%u", op0 & 15); break;
+    case  (0xc0): sprintf(t, "hib"); break;
+    case15(0xc1): sprintf(t, "xor r%u", op0 & 15); break;
+    case15(0xd0): sprintf(t, "inc r%u", op0 & 15); break;
+    case  (0xdf): sprintf(t, "getc"); break;
+    case15(0xe0): sprintf(t, "dec r%u", op0 & 15); break;
+    case  (0xef): sprintf(t, "getbh"); break;
+    case16(0xf0): sprintf(t, "lm r%u", op0 & 15); break;
+  }
+  strcat(output, t);
+}
+
+void SuperFX::disassemble_alt2(char *output) {
+  char t[256] = "";
+  switch(op0) {
+    case  (0x00): sprintf(t, "stop"); break;
+    case  (0x01): sprintf(t, "nop"); break;
+    case  (0x02): sprintf(t, "cache"); break;
+    case  (0x03): sprintf(t, "lsr"); break;
+    case  (0x04): sprintf(t, "rol"); break;
+    case  (0x05): sprintf(t, "bra %+d", (int8_t)op1); break;
+    case  (0x06): sprintf(t, "blt %+d", (int8_t)op1); break;
+    case  (0x07): sprintf(t, "bge %+d", (int8_t)op1); break;
+    case  (0x08): sprintf(t, "bne %+d", (int8_t)op1); break;
+    case  (0x09): sprintf(t, "beq %+d", (int8_t)op1); break;
+    case  (0x0a): sprintf(t, "bpl %+d", (int8_t)op1); break;
+    case  (0x0b): sprintf(t, "bmi %+d", (int8_t)op1); break;
+    case  (0x0c): sprintf(t, "bcc %+d", (int8_t)op1); break;
+    case  (0x0d): sprintf(t, "bcs %+d", (int8_t)op1); break;
+    case  (0x0e): sprintf(t, "bvc %+d", (int8_t)op1); break;
+    case  (0x0f): sprintf(t, "bvs %+d", (int8_t)op1); break;
+    case16(0x10): sprintf(t, "to r%u", op0 & 15); break;
+    case16(0x20): sprintf(t, "with r%u", op0 & 15); break;
+    case12(0x30): sprintf(t, "stw (r%u)", op0 & 15); break;
+    case  (0x3c): sprintf(t, "loop"); break;
+    case  (0x3d): sprintf(t, "alt1"); break;
+    case  (0x3e): sprintf(t, "alt2"); break;
+    case  (0x3f): sprintf(t, "alt3"); break;
+    case12(0x40): sprintf(t, "ldw (r%u)", op0 & 15); break;
+    case  (0x4c): sprintf(t, "plot"); break;
+    case  (0x4d): sprintf(t, "swap"); break;
+    case  (0x4e): sprintf(t, "color"); break;
+    case  (0x4f): sprintf(t, "not"); break;
+    case16(0x50): sprintf(t, "add #%u", op0 & 15); break;
+    case16(0x60): sprintf(t, "sub #%u", op0 & 15); break;
+    case  (0x70): sprintf(t, "merge"); break;
+    case15(0x71): sprintf(t, "and #%u", op0 & 15); break;
+    case16(0x80): sprintf(t, "mult #%u", op0 & 15); break;
+    case  (0x90): sprintf(t, "sbk"); break;
+    case4 (0x91): sprintf(t, "link #%u", op0 & 15); break;
+    case  (0x95): sprintf(t, "sex"); break;
+    case  (0x96): sprintf(t, "asr"); break;
+    case  (0x97): sprintf(t, "ror"); break;
+    case6 (0x98): sprintf(t, "jmp r%u", op0 & 15); break;
+    case  (0x9e): sprintf(t, "lob"); break;
+    case  (0x9f): sprintf(t, "fmult"); break;
+    case16(0xa0): sprintf(t, "sms r%u,(#$%.4x)", op0 & 15, op1 << 1); break;
+    case16(0xb0): sprintf(t, "from r%u", op0 & 15); break;
+    case  (0xc0): sprintf(t, "hib"); break;
+    case15(0xc1): sprintf(t, "or #%u", op0 & 15); break;
+    case15(0xd0): sprintf(t, "inc r%u", op0 & 15); break;
+    case  (0xdf): sprintf(t, "ramb"); break;
+    case15(0xe0): sprintf(t, "dec r%u", op0 & 15); break;
+    case  (0xef): sprintf(t, "getbl"); break;
+    case16(0xf0): sprintf(t, "sm r%u", op0 & 15); break;
+  }
+  strcat(output, t);
+}
+
+void SuperFX::disassemble_alt3(char *output) {
+  char t[256] = "";
+  switch(op0) {
+    case  (0x00): sprintf(t, "stop"); break;
+    case  (0x01): sprintf(t, "nop"); break;
+    case  (0x02): sprintf(t, "cache"); break;
+    case  (0x03): sprintf(t, "lsr"); break;
+    case  (0x04): sprintf(t, "rol"); break;
+    case  (0x05): sprintf(t, "bra %+d", (int8_t)op1); break;
+    case  (0x06): sprintf(t, "blt %+d", (int8_t)op1); break;
+    case  (0x07): sprintf(t, "bge %+d", (int8_t)op1); break;
+    case  (0x08): sprintf(t, "bne %+d", (int8_t)op1); break;
+    case  (0x09): sprintf(t, "beq %+d", (int8_t)op1); break;
+    case  (0x0a): sprintf(t, "bpl %+d", (int8_t)op1); break;
+    case  (0x0b): sprintf(t, "bmi %+d", (int8_t)op1); break;
+    case  (0x0c): sprintf(t, "bcc %+d", (int8_t)op1); break;
+    case  (0x0d): sprintf(t, "bcs %+d", (int8_t)op1); break;
+    case  (0x0e): sprintf(t, "bvc %+d", (int8_t)op1); break;
+    case  (0x0f): sprintf(t, "bvs %+d", (int8_t)op1); break;
+    case16(0x10): sprintf(t, "to r%u", op0 & 15); break;
+    case16(0x20): sprintf(t, "with r%u", op0 & 15); break;
+    case12(0x30): sprintf(t, "stb (r%u)", op0 & 15); break;
+    case  (0x3c): sprintf(t, "loop"); break;
+    case  (0x3d): sprintf(t, "alt1"); break;
+    case  (0x3e): sprintf(t, "alt2"); break;
+    case  (0x3f): sprintf(t, "alt3"); break;
+    case12(0x40): sprintf(t, "ldb (r%u)", op0 & 15); break;
+    case  (0x4c): sprintf(t, "rpix"); break;
+    case  (0x4d): sprintf(t, "swap"); break;
+    case  (0x4e): sprintf(t, "cmode"); break;
+    case  (0x4f): sprintf(t, "not"); break;
+    case16(0x50): sprintf(t, "adc #%u", op0 & 15); break;
+    case16(0x60): sprintf(t, "cmp r%u", op0 & 15); break;
+    case  (0x70): sprintf(t, "merge"); break;
+    case15(0x71): sprintf(t, "bic #%u", op0 & 15); break;
+    case16(0x80): sprintf(t, "umult #%u", op0 & 15); break;
+    case  (0x90): sprintf(t, "sbk"); break;
+    case4 (0x91): sprintf(t, "link #%u", op0 & 15); break;
+    case  (0x95): sprintf(t, "sex"); break;
+    case  (0x96): sprintf(t, "div2"); break;
+    case  (0x97): sprintf(t, "ror"); break;
+    case6 (0x98): sprintf(t, "ljmp r%u", op0 & 15); break;
+    case  (0x9e): sprintf(t, "lob"); break;
+    case  (0x9f): sprintf(t, "lmult"); break;
+    case16(0xa0): sprintf(t, "lms r%u", op0 & 15); break;
+    case16(0xb0): sprintf(t, "from r%u", op0 & 15); break;
+    case  (0xc0): sprintf(t, "hib"); break;
+    case15(0xc1): sprintf(t, "xor #%u", op0 & 15); break;
+    case15(0xd0): sprintf(t, "inc r%u", op0 & 15); break;
+    case  (0xdf): sprintf(t, "romb"); break;
+    case15(0xe0): sprintf(t, "dec r%u", op0 & 15); break;
+    case  (0xef): sprintf(t, "getbs"); break;
+    case16(0xf0): sprintf(t, "lm r%u", op0 & 15); break;
+  }
+  strcat(output, t);
+}
+
+#undef case4
+#undef case6
+#undef case12
+#undef case15
+#undef case16
+#undef op0
+#undef op1
+#undef op2
+
+#endif

asnes/chip/superfx/disasm/disasm.hpp

@@ -0,0 +1,5 @@
+void disassemble_opcode(char *output);
+void disassemble_alt0(char *output);
+void disassemble_alt1(char *output);
+void disassemble_alt2(char *output);
+void disassemble_alt3(char *output);

asnes/chip/superfx/memory/memory.cpp

@@ -0,0 +1,71 @@
+#ifdef SUPERFX_CPP
+
+uint8 SuperFX::op_read(uint16 addr) {
+  uint16 offset = addr - regs.cbr;
+  if(offset < 512) {
+    if(cache.valid[offset >> 4] == false) {
+      unsigned dp = offset & 0xfff0;
+      unsigned sp = (regs.pbr << 16) + ((regs.cbr + dp) & 0xfff0);
+      for(unsigned n = 0; n < 16; n++) {
+        add_clocks(memory_access_speed);
+        cache.buffer[dp++] = superfxbus.read(sp++);
+      }
+      cache.valid[offset >> 4] = true;
+    } else {
+      add_clocks(cache_access_speed);
+    }
+    return cache.buffer[offset];
+  }
+
+  if(regs.pbr <= 0x5f) {
+    //$[00-5f]:[0000-ffff] ROM
+    rombuffer_sync();
+    add_clocks(memory_access_speed);
+    return superfxbus.read((regs.pbr << 16) + addr);
+  } else {
+    //$[60-7f]:[0000-ffff] RAM
+    rambuffer_sync();
+    add_clocks(memory_access_speed);
+    return superfxbus.read((regs.pbr << 16) + addr);
+  }
+}
+
+uint8 SuperFX::peekpipe() {
+  uint8 result = regs.pipeline;
+  regs.pipeline = op_read(regs.r[15]);
+  r15_modified = false;
+  return result;
+}
+
+uint8 SuperFX::pipe() {
+  uint8 result = regs.pipeline;
+  regs.pipeline = op_read(++regs.r[15]);
+  r15_modified = false;
+  return result;
+}
+
+void SuperFX::cache_flush() {
+  for(unsigned n = 0; n < 32; n++) cache.valid[n] = false;
+}
+
+uint8 SuperFX::cache_mmio_read(uint16 addr) {
+  addr = (addr + regs.cbr) & 511;
+  return cache.buffer[addr];
+}
+
+void SuperFX::cache_mmio_write(uint16 addr, uint8 data) {
+  addr = (addr + regs.cbr) & 511;
+  cache.buffer[addr] = data;
+  if((addr & 15) == 15) cache.valid[addr >> 4] = true;
+}
+
+void SuperFX::memory_reset() {
+  for(unsigned n = 0; n < 512; n++) cache.buffer[n] = 0x00;
+  for(unsigned n = 0; n < 32; n++) cache.valid[n] = false;
+  for(unsigned n = 0; n < 2; n++) {
+    pixelcache[n].offset = ~0;
+    pixelcache[n].bitpend = 0x00;
+  }
+}
+
+#endif

asnes/chip/superfx/memory/memory.hpp

@@ -0,0 +1,9 @@
+uint8 op_read(uint16 addr);
+alwaysinline uint8 peekpipe();
+alwaysinline uint8 pipe();
+
+void cache_flush();
+uint8 cache_mmio_read(uint16 addr);
+void cache_mmio_write(uint16 addr, uint8 data);
+
+void memory_reset();

asnes/chip/superfx/mmio/mmio.cpp

@@ -0,0 +1,118 @@
+#ifdef SUPERFX_CPP
+
+uint8 SuperFX::mmio_read(unsigned addr) {
+  cpu.synchronize_coprocessor();
+  addr &= 0xffff;
+
+  if(addr >= 0x3100 && addr <= 0x32ff) {
+    return cache_mmio_read(addr - 0x3100);
+  }
+
+  if(addr >= 0x3000 && addr <= 0x301f) {
+    return regs.r[(addr >> 1) & 15] >> ((addr & 1) << 3);
+  }
+
+  switch(addr) {
+    case 0x3030: {
+      return regs.sfr >> 0;
+    }
+
+    case 0x3031: {
+      uint8 r = regs.sfr >> 8;
+      regs.sfr.irq = 0;
+      cpu.regs.irq = 0;
+      return r;
+    }
+
+    case 0x3034: {
+      return regs.pbr;
+    }
+
+    case 0x3036: {
+      return regs.rombr;
+    }
+
+    case 0x303b: {
+      return regs.vcr;
+    }
+
+    case 0x303c: {
+      return regs.rambr;
+    }
+
+    case 0x303e: {
+      return regs.cbr >> 0;
+    }
+
+    case 0x303f: {
+      return regs.cbr >> 8;
+    }
+  }
+
+  return 0x00;
+}
+
+void SuperFX::mmio_write(unsigned addr, uint8 data) {
+  cpu.synchronize_coprocessor();
+  addr &= 0xffff;
+
+  if(addr >= 0x3100 && addr <= 0x32ff) {
+    return cache_mmio_write(addr - 0x3100, data);
+  }
+
+  if(addr >= 0x3000 && addr <= 0x301f) {
+    unsigned n = (addr >> 1) & 15;
+    if((addr & 1) == 0) {
+      regs.r[n] = (regs.r[n] & 0xff00) | data;
+    } else {
+      regs.r[n] = (data << 8) | (regs.r[n] & 0xff);
+    }
+
+    if(addr == 0x301f) regs.sfr.g = 1;
+    return;
+  }
+
+  switch(addr) {
+    case 0x3030: {
+      bool g = regs.sfr.g;
+      regs.sfr = (regs.sfr & 0xff00) | (data << 0);
+      if(g == 1 && regs.sfr.g == 0) {
+        regs.cbr = 0x0000;
+        cache_flush();
+      }
+    } break;
+
+    case 0x3031: {
+      regs.sfr = (data << 8) | (regs.sfr & 0x00ff);
+    } break;
+
+    case 0x3033: {
+      regs.bramr = data;
+    } break;
+
+    case 0x3034: {
+      regs.pbr = data & 0x7f;
+      cache_flush();
+    } break;
+
+    case 0x3037: {
+      regs.cfgr = data;
+      update_speed();
+    } break;
+
+    case 0x3038: {
+      regs.scbr = data;
+    } break;
+
+    case 0x3039: {
+      regs.clsr = data;
+      update_speed();
+    } break;
+
+    case 0x303a: {
+      regs.scmr = data;
+    } break;
+  }
+}
+
+#endif

asnes/chip/superfx/mmio/mmio.hpp

@@ -0,0 +1,2 @@
+uint8 mmio_read(unsigned addr);
+void mmio_write(unsigned addr, uint8 data);

asnes/chip/superfx/serialization.cpp

@@ -0,0 +1,96 @@
+#ifdef SUPERFX_CPP
+
+void SuperFX::serialize(serializer &s) {
+  Processor::serialize(s);
+
+  //superfx.hpp
+  s.integer(clockmode);
+  s.integer(instruction_counter);
+
+  //core/registers.hpp
+  s.integer(regs.pipeline);
+  s.integer(regs.ramaddr);
+
+  s.integer(regs.r[ 0].data);
+  s.integer(regs.r[ 1].data);
+  s.integer(regs.r[ 2].data);
+  s.integer(regs.r[ 3].data);
+  s.integer(regs.r[ 4].data);
+  s.integer(regs.r[ 5].data);
+  s.integer(regs.r[ 6].data);
+  s.integer(regs.r[ 7].data);
+  s.integer(regs.r[ 8].data);
+  s.integer(regs.r[ 9].data);
+  s.integer(regs.r[10].data);
+  s.integer(regs.r[11].data);
+  s.integer(regs.r[12].data);
+  s.integer(regs.r[13].data);
+  s.integer(regs.r[14].data);
+  s.integer(regs.r[15].data);
+
+  s.integer(regs.sfr.irq);
+  s.integer(regs.sfr.b);
+  s.integer(regs.sfr.ih);
+  s.integer(regs.sfr.il);
+  s.integer(regs.sfr.alt2);
+  s.integer(regs.sfr.alt1);
+  s.integer(regs.sfr.r);
+  s.integer(regs.sfr.g);
+  s.integer(regs.sfr.ov);
+  s.integer(regs.sfr.s);
+  s.integer(regs.sfr.cy);
+  s.integer(regs.sfr.z);
+
+  s.integer(regs.pbr);
+  s.integer(regs.rombr);
+  s.integer(regs.rambr);
+  s.integer(regs.cbr);
+  s.integer(regs.scbr);
+
+  s.integer(regs.scmr.ht);
+  s.integer(regs.scmr.ron);
+  s.integer(regs.scmr.ran);
+  s.integer(regs.scmr.md);
+
+  s.integer(regs.colr);
+
+  s.integer(regs.por.obj);
+  s.integer(regs.por.freezehigh);
+  s.integer(regs.por.highnibble);
+  s.integer(regs.por.dither);
+  s.integer(regs.por.transparent);
+
+  s.integer(regs.bramr);
+  s.integer(regs.vcr);
+
+  s.integer(regs.cfgr.irq);
+  s.integer(regs.cfgr.ms0);
+
+  s.integer(regs.clsr);
+
+  s.integer(regs.romcl);
+  s.integer(regs.romdr);
+
+  s.integer(regs.ramcl);
+  s.integer(regs.ramar);
+  s.integer(regs.ramdr);
+
+  s.integer(regs.sreg);
+  s.integer(regs.dreg);
+
+  s.array(cache.buffer);
+  s.array(cache.valid);
+
+  for(unsigned i = 0; i < 2; i++) {
+    s.integer(pixelcache[i].offset);
+    s.integer(pixelcache[i].bitpend);
+    s.array(pixelcache[i].data);
+  }
+
+  //timing/timing.hpp
+  s.integer(cache_access_speed);
+  s.integer(memory_access_speed);
+  s.integer(r15_modified);
+}
+
+#endif

asnes/chip/superfx/superfx.cpp

@@ -0,0 +1,81 @@
+#include <snes.hpp>
+
+#define SUPERFX_CPP
+namespace SNES {
+
+#include "serialization.cpp"
+#include "bus/bus.cpp"
+#include "core/core.cpp"
+#include "memory/memory.cpp"
+#include "mmio/mmio.cpp"
+#include "timing/timing.cpp"
+#include "disasm/disasm.cpp"
+
+SuperFX superfx;
+
+void SuperFX::Enter() { superfx.enter(); }
+
+void SuperFX::enter() {
+  while(true) {
+    if(scheduler.sync == Scheduler::SynchronizeMode::All) {
+      scheduler.exit(Scheduler::ExitReason::SynchronizeEvent);
+    }
+
+    if(regs.sfr.g == 0) {
+      add_clocks(6);
+      synchronize_cpu();
+      continue;
+    }
+
+    (this->*opcode_table[(regs.sfr & 0x0300) + peekpipe()])();
+    if(r15_modified == false) regs.r[15]++;
+
+    if(++instruction_counter >= 128) {
+      instruction_counter = 0;
+      synchronize_cpu();
+    }
+  }
+}
+
+void SuperFX::init() {
+  initialize_opcode_table();
+  regs.r[14].on_modify = { &SuperFX::r14_modify, this };
+  regs.r[15].on_modify = { &SuperFX::r15_modify, this };
+}
+
+void SuperFX::enable() {
+}
+
+void SuperFX::power() {
+  clockmode = config.superfx.speed;
+  reset();
+}
+
+void SuperFX::reset() {
+  create(SuperFX::Enter, system.cpu_frequency());
+  superfxbus.init();
+  instruction_counter = 0;
+
+  for(unsigned n = 0; n < 16; n++) regs.r[n] = 0x0000;
+  regs.sfr   = 0x0000;
+  regs.pbr   = 0x00;
+  regs.rombr = 0x00;
+  regs.rambr = 0;
+  regs.cbr   = 0x0000;
+  regs.scbr  = 0x00;
+  regs.scmr  = 0x00;
+  regs.colr  = 0x00;
+  regs.por   = 0x00;
+  regs.bramr = 0;
+  regs.vcr   = 0x04;
+  regs.cfgr  = 0x00;
+  regs.clsr  = 0;
+  regs.pipeline = 0x01;  //nop
+  regs.ramaddr = 0x0000;
+  regs.reset();
+
+  memory_reset();
+  timing_reset();
+}
+
+}

asnes/chip/superfx/superfx.hpp

@@ -0,0 +1,25 @@
+#include "bus/bus.hpp"
+
+class SuperFX : public Coprocessor, public MMIO {
+public:
+  #include "core/core.hpp"
+  #include "memory/memory.hpp"
+  #include "mmio/mmio.hpp"
+  #include "timing/timing.hpp"
+  #include "disasm/disasm.hpp"
+
+  static void Enter();
+  void enter();
+  void init();
+  void enable();
+  void power();
+  void reset();
+  void serialize(serializer&);
+
+private:
+  unsigned clockmode;
+  unsigned instruction_counter;
+};
+
+extern SuperFX superfx;
+extern SuperFXBus superfxbus;

asnes/chip/superfx/timing/timing.cpp

@@ -0,0 +1,97 @@
+#ifdef SUPERFX_CPP
+
+void SuperFX::add_clocks(unsigned clocks) {
+  if(regs.romcl) {
+    regs.romcl -= min(clocks, regs.romcl);
+    if(regs.romcl == 0) {
+      regs.sfr.r = 0;
+      regs.romdr = superfxbus.read((regs.rombr << 16) + regs.r[14]);
+    }
+  }
+
+  if(regs.ramcl) {
+    regs.ramcl -= min(clocks, regs.ramcl);
+    if(regs.ramcl == 0) {
+      superfxbus.write(0x700000 + (regs.rambr << 16) + regs.ramar, regs.ramdr);
+    }
+  }
+
+  step(clocks);
+  synchronize_cpu();
+}
+
+void SuperFX::rombuffer_sync() {
+  if(regs.romcl) add_clocks(regs.romcl);
+}
+
+void SuperFX::rombuffer_update() {
+  regs.sfr.r = 1;
+  regs.romcl = memory_access_speed;
+}
+
+uint8 SuperFX::rombuffer_read() {
+  rombuffer_sync();
+  return regs.romdr;
+}
+
+void SuperFX::rambuffer_sync() {
+  if(regs.ramcl) add_clocks(regs.ramcl);
+}
+
+uint8 SuperFX::rambuffer_read(uint16 addr) {
+  rambuffer_sync();
+  return superfxbus.read(0x700000 + (regs.rambr << 16) + addr);
+}
+
+void SuperFX::rambuffer_write(uint16 addr, uint8 data) {
+  rambuffer_sync();
+  regs.ramcl = memory_access_speed;
+  regs.ramar = addr;
+  regs.ramdr = data;
+}
+
+void SuperFX::r14_modify(uint16 data) {
+  regs.r[14].data = data;
+  rombuffer_update();
+}
+
+void SuperFX::r15_modify(uint16 data) {
+  regs.r[15].data = data;
+  r15_modified = true;
+}
+
+void SuperFX::update_speed() {
+  //force SuperFX1 mode?
+  if(clockmode == 1) {
+    cache_access_speed  = 2;
+    memory_access_speed = 6;
+    return;
+  }
+
+  //force SuperFX2 mode?
+  if(clockmode == 2) {
+    cache_access_speed  = 1;
+    memory_access_speed = 5;
+    regs.cfgr.ms0 = 0;  //cannot use high-speed multiplication in 21MHz mode
+    return;
+  }
+
+  //default: allow S-CPU to select mode
+  cache_access_speed  = (regs.clsr ? 1 : 2);
+  memory_access_speed = (regs.clsr ? 5 : 6);
+  if(regs.clsr) regs.cfgr.ms0 = 0;  //cannot use high-speed multiplication in 21MHz mode
+}
+
+void SuperFX::timing_reset() {
+  update_speed();
+  r15_modified = false;
+
+  regs.romcl = 0;
+  regs.romdr = 0;
+
+  regs.ramcl = 0;
+  regs.ramar = 0;
+  regs.ramdr = 0;
+}
+
+#endif

asnes/chip/superfx/timing/timing.hpp

@@ -0,0 +1,19 @@
+unsigned cache_access_speed;
+unsigned memory_access_speed;
+bool r15_modified;
+
+void add_clocks(unsigned clocks);
+
+void rombuffer_sync();
+void rombuffer_update();
+uint8 rombuffer_read();
+
+void rambuffer_sync();
+uint8 rambuffer_read(uint16 addr);
+void rambuffer_write(uint16 addr, uint8 data);
+
+void r14_modify(uint16);
+void r15_modify(uint16);
+
+void update_speed();
+void timing_reset();