X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=pcsx_rearmed.git;a=blobdiff_plain;f=libpcsxcore%2Fpsxdma.c;h=03ee563913ad9402a1b62af612b218b0d7689dc6;hp=63c2724d7b406f86f4322dbe45afdde0222e11fe;hb=fc4803bdc2c9840a007c60e422fb0531107b80f2;hpb=6c036261062e5ab1fe3826268966ef324de3787f diff --git a/libpcsxcore/psxdma.c b/libpcsxcore/psxdma.c index 63c2724d..03ee5639 100644 --- a/libpcsxcore/psxdma.c +++ b/libpcsxcore/psxdma.c @@ -37,7 +37,7 @@ void spuInterrupt() { void psxDma4(u32 madr, u32 bcr, u32 chcr) { // SPU u16 *ptr; - u32 size; + u32 words; switch (chcr) { case 0x01000201: //cpu to spu transfer @@ -51,8 +51,10 @@ void psxDma4(u32 madr, u32 bcr, u32 chcr) { // SPU #endif break; } - SPU_writeDMAMem(ptr, (bcr >> 16) * (bcr & 0xffff) * 2); - SPUDMA_INT((bcr >> 16) * (bcr & 0xffff) / 2); + words = (bcr >> 16) * (bcr & 0xffff); + SPU_writeDMAMem(ptr, words * 2, psxRegs.cycle); + HW_DMA4_MADR = SWAPu32(madr + words * 4); + SPUDMA_INT(words / 2); return; case 0x01000200: //spu to cpu transfer @@ -66,10 +68,13 @@ void psxDma4(u32 madr, u32 bcr, u32 chcr) { // SPU #endif break; } - size = (bcr >> 16) * (bcr & 0xffff) * 2; - SPU_readDMAMem(ptr, size); - psxCpu->Clear(madr, size); - break; + words = (bcr >> 16) * (bcr & 0xffff); + SPU_readDMAMem(ptr, words * 2, psxRegs.cycle); + psxCpu->Clear(madr, words); + + HW_DMA4_MADR = SWAPu32(madr + words * 4); + SPUDMA_INT(words / 2); + return; #ifdef PSXDMA_LOG default: @@ -124,6 +129,7 @@ static u32 gpuDmaChainSize(u32 addr) { void psxDma2(u32 madr, u32 bcr, u32 chcr) { // GPU u32 *ptr; + u32 words; u32 size; switch (chcr) { @@ -139,12 +145,14 @@ void psxDma2(u32 madr, u32 bcr, u32 chcr) { // GPU break; } // BA blocks * BS words (word = 32-bits) - size = (bcr >> 16) * (bcr & 0xffff); - GPU_readDataMem(ptr, size); - psxCpu->Clear(madr, size); + words = (bcr >> 16) * (bcr & 0xffff); + GPU_readDataMem(ptr, words); + psxCpu->Clear(madr, words); + + HW_DMA2_MADR = SWAPu32(madr + words * 4); // already 32-bit word size ((size * 4) / 4) - GPUDMA_INT(size / 4); + GPUDMA_INT(words / 4); return; case 0x01000201: // mem2vram @@ -159,11 +167,13 @@ void psxDma2(u32 madr, u32 bcr, u32 chcr) { // GPU break; } // BA blocks * BS words (word = 32-bits) - size = (bcr >> 16) * (bcr & 0xffff); - GPU_writeDataMem(ptr, size); + words = (bcr >> 16) * (bcr & 0xffff); + GPU_writeDataMem(ptr, words); + + HW_DMA2_MADR = SWAPu32(madr + words * 4); // already 32-bit word size ((size * 4) / 4) - GPUDMA_INT(size / 4); + GPUDMA_INT(words / 4); return; case 0x01000401: // dma chain @@ -175,7 +185,11 @@ void psxDma2(u32 madr, u32 bcr, u32 chcr) { // GPU if ((int)size <= 0) size = gpuDmaChainSize(madr); HW_GPU_STATUS &= ~PSXGPU_nBUSY; - + + // we don't emulate progress, just busy flag and end irq, + // so pretend we're already at the last block + HW_DMA2_MADR = SWAPu32(0xffffff); + // Tekken 3 = use 1.0 only (not 1.5x) // Einhander = parse linked list in pieces (todo) @@ -206,7 +220,7 @@ void gpuInterrupt() { } void psxDma6(u32 madr, u32 bcr, u32 chcr) { - u32 size; + u32 words; u32 *mem = (u32 *)PSXM(madr); #ifdef PSXDMA_LOG @@ -224,7 +238,7 @@ void psxDma6(u32 madr, u32 bcr, u32 chcr) { } // already 32-bit size - size = bcr; + words = bcr; while (bcr--) { *mem-- = SWAP32((madr - 4) & 0xffffff); @@ -232,7 +246,10 @@ void psxDma6(u32 madr, u32 bcr, u32 chcr) { } mem++; *mem = 0xffffff; - GPUOTCDMA_INT(size); + //GPUOTCDMA_INT(size); + // halted + psxRegs.cycle += words; + GPUOTCDMA_INT(16); return; } #ifdef PSXDMA_LOG