mirror of https://github.com/mgba-emu/mgba.git
GB Memory: HDMAs should not start when LCD is off (fixes #310)
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@ -6,6 +6,7 @@ Bugfixes:
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- GBA Cheats: Fix PARv3 slide codes (fixes mgba.io/i/919)
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- GBA Cheats: Fix PARv3 slide codes (fixes mgba.io/i/919)
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- GBA Video: OBJWIN can change blend params after OBJ is drawn (fixes mgba.io/i/921)
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- GBA Video: OBJWIN can change blend params after OBJ is drawn (fixes mgba.io/i/921)
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- GBA Savedata: Fix crash when resizing flash
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- GBA Savedata: Fix crash when resizing flash
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- GB Memory: HDMAs should not start when LCD is off (fixes mgba.io/i/310)
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Misc:
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Misc:
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- GBA: Improve multiboot image detection
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- GBA: Improve multiboot image detection
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- GB MBC: Remove erroneous bank 0 wrapping
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- GB MBC: Remove erroneous bank 0 wrapping
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@ -177,7 +177,7 @@ int GBCurrentSegment(struct LR35902Core* cpu, uint16_t address);
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uint8_t GBView8(struct LR35902Core* cpu, uint16_t address, int segment);
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uint8_t GBView8(struct LR35902Core* cpu, uint16_t address, int segment);
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void GBMemoryDMA(struct GB* gb, uint16_t base);
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void GBMemoryDMA(struct GB* gb, uint16_t base);
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void GBMemoryWriteHDMA5(struct GB* gb, uint8_t value);
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uint8_t GBMemoryWriteHDMA5(struct GB* gb, uint8_t value);
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void GBPatch8(struct LR35902Core* cpu, uint16_t address, int8_t value, int8_t* old, int segment);
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void GBPatch8(struct LR35902Core* cpu, uint16_t address, int8_t value, int8_t* old, int segment);
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@ -410,8 +410,7 @@ void GBIOWrite(struct GB* gb, unsigned address, uint8_t value) {
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// Handled transparently by the registers
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// Handled transparently by the registers
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break;
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break;
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case REG_HDMA5:
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case REG_HDMA5:
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GBMemoryWriteHDMA5(gb, value);
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value = GBMemoryWriteHDMA5(gb, value);
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value &= 0x7F;
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break;
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break;
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case REG_BCPS:
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case REG_BCPS:
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gb->video.bcpIndex = value & 0x3F;
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gb->video.bcpIndex = value & 0x3F;
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@ -449,7 +449,7 @@ void GBMemoryDMA(struct GB* gb, uint16_t base) {
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gb->memory.dmaRemaining = 0xA0;
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gb->memory.dmaRemaining = 0xA0;
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}
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}
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void GBMemoryWriteHDMA5(struct GB* gb, uint8_t value) {
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uint8_t GBMemoryWriteHDMA5(struct GB* gb, uint8_t value) {
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gb->memory.hdmaSource = gb->memory.io[REG_HDMA1] << 8;
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gb->memory.hdmaSource = gb->memory.io[REG_HDMA1] << 8;
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gb->memory.hdmaSource |= gb->memory.io[REG_HDMA2];
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gb->memory.hdmaSource |= gb->memory.io[REG_HDMA2];
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gb->memory.hdmaDest = gb->memory.io[REG_HDMA3] << 8;
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gb->memory.hdmaDest = gb->memory.io[REG_HDMA3] << 8;
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@ -457,7 +457,7 @@ void GBMemoryWriteHDMA5(struct GB* gb, uint8_t value) {
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gb->memory.hdmaSource &= 0xFFF0;
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gb->memory.hdmaSource &= 0xFFF0;
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if (gb->memory.hdmaSource >= 0x8000 && gb->memory.hdmaSource < 0xA000) {
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if (gb->memory.hdmaSource >= 0x8000 && gb->memory.hdmaSource < 0xA000) {
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mLOG(GB_MEM, GAME_ERROR, "Invalid HDMA source: %04X", gb->memory.hdmaSource);
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mLOG(GB_MEM, GAME_ERROR, "Invalid HDMA source: %04X", gb->memory.hdmaSource);
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return;
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return value | 0x80;
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}
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}
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gb->memory.hdmaDest &= 0x1FF0;
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gb->memory.hdmaDest &= 0x1FF0;
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gb->memory.hdmaDest |= 0x8000;
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gb->memory.hdmaDest |= 0x8000;
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@ -471,7 +471,10 @@ void GBMemoryWriteHDMA5(struct GB* gb, uint8_t value) {
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}
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}
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gb->cpuBlocked = true;
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gb->cpuBlocked = true;
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mTimingSchedule(&gb->timing, &gb->memory.hdmaEvent, 0);
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mTimingSchedule(&gb->timing, &gb->memory.hdmaEvent, 0);
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} else if (gb->memory.isHdma && !GBRegisterLCDCIsEnable(gb->memory.io[REG_LCDC])) {
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return 0x80 | ((value + 1) & 0x7F);
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}
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}
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return value & 0x7F;
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}
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}
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void _GBMemoryDMAService(struct mTiming* timing, void* context, uint32_t cyclesLate) {
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void _GBMemoryDMAService(struct mTiming* timing, void* context, uint32_t cyclesLate) {
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