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GBA BIOS: Implement (most of) RegisterRamReset

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This commit is contained in:
Jeffrey Pfau 2015-01-07 22:18:08 -08:00
parent 600080ba0c
commit afc0a9df57
2 changed files with 27 additions and 3 deletions
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2
CHANGES
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@ -14,7 +14,7 @@ Features:
- Support for games using the tilt sensor
- Remappable shortcuts for keyboard and gamepad
- Rewinding of emulation
- Implemented BIOS routines Diff8bitUnFilterWram, Diff8bitUnFilterVram, and Diff16bitUnFilter
- Implemented BIOS routines RegisterRamReset, Diff8bitUnFilterWram, Diff8bitUnFilterVram, and Diff16bitUnFilter
Bugfixes:
- Qt: Fix issue with set frame sizes being the wrong height
- Qt: Fix emulator crashing when full screen if a game is not running

28
src/gba/gba-bios.c
View File

@ -19,8 +19,32 @@ static void _unFilter(struct GBA* gba, int inwidth, int outwidth);
static void _RegisterRamReset(struct GBA* gba) {
uint32_t registers = gba->cpu->gprs[0];
UNUSED(registers);
GBALog(gba, GBA_LOG_STUB, "RegisterRamReset unimplemented");
struct ARMCore* cpu = gba->cpu;
cpu->memory.store16(cpu, BASE_IO | REG_DISPCNT, 0x0080, 0);
if (registers & 0x01) {
memset(gba->memory.wram, 0, SIZE_WORKING_RAM);
}
if (registers & 0x02) {
memset(gba->memory.iwram, 0, SIZE_WORKING_IRAM - 0x200);
}
if (registers & 0x04) {
memset(gba->video.palette, 0, SIZE_PALETTE_RAM);
}
if (registers & 0x08) {
memset(gba->video.renderer->vram, 0, SIZE_VRAM);
}
if (registers & 0x10) {
memset(gba->video.oam.raw, 0, SIZE_OAM);
}
if (registers & 0x20) {
GBALog(gba, GBA_LOG_STUB, "RegisterRamReset on SIO unimplemented");
}
if (registers & 0x40) {
GBALog(gba, GBA_LOG_STUB, "RegisterRamReset on Audio unimplemented");
}
if (registers & 0x80) {
GBALog(gba, GBA_LOG_STUB, "RegisterRamReset on IO unimplemented");
}
}
static void _BgAffineSet(struct GBA* gba) {