byuu says:
Changelog:
- fixed LYC interrupt at LY=0 (fixes Makai Toushi SaGa)
- fixed MBC3 ROM bank mapping (fixes Harvest Moon GBC)
- added Super Game Boy MLT_REQ support to JOYP, needed for ICD2-R emulation
- temporarily changed System::run() to execute only four cycles before
exiting for bsnes, will make two versions later
- uses actual boot ROMs, has DMG+SGB1 for now. Need SGB2, don't care
about CGB. Defaults to SGB1, no way to select just yet. DMG 4-second
wait is annoying. Does not force games to act like SGB on bgameboy
itself, because that has no ICD2 and fails the required MLT_REQ check
The source tarball also included empty obj/ and out/ directories which
git does not support.
byuu says:
Project started, so basically everything is new.
It's basically a rough skeleton that mimics bsnes project structure.
Eventually the src/gameboy folder will be copied into bsnes-official and
used by the chip/supergameboy core.
The middleware layer (supergameboy/interface) will be merged into a new
chip/icd2 folder that will represent direct Super Game Boy emulation in
the future.
At least, if all goes according to plan.
There is a simple GUI that can load ROMs, but do nothing after it. It's
not hooked up to ruby yet.
There is a basic system class and interface to expose the
video/audio/input functions.
There is a basic memory bus that doesn't support any MBCs yet.
There is a CPU skeleton that only handles easy read/write access to the
CPU registers (AF is a really fucked up register.)
The core is not hooked up to libco yet, but I intend for it to be, so
that I can run the CPU + LCD how I like.
If it turns out the LCD+audio is easily enslavable, then I'll probably
drop libco and just run it like a regular emulator, using a thread
wrapper around it in bsnes only. We'll see.
The CPU doesn't actually support any opcodes, and loading a ROM won't
actually execute anything.
