X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=libpcsxcore%2Fpsxdma.c;h=3ec42ede22884ff4c5f07aa334183c75b80ca55e;hb=b54a1ac7cfa3f045afef2e04d3e255884c3d5ef0;hp=24570968dd07cba6d2593845b50cbabdff82ce15;hpb=9a0a61d27586bfb93aa443cc59d9588d2b9cf992;p=pcsx_rearmed.git

diff --git a/libpcsxcore/psxdma.c b/libpcsxcore/psxdma.c
index 24570968..3ec42ede 100644
--- a/libpcsxcore/psxdma.c
+++ b/libpcsxcore/psxdma.c
@@ -67,7 +67,7 @@ void psxDma4(u32 madr, u32 bcr, u32 chcr) { // SPU
 			// This should be much slower, like 12+ cycles/byte, it's like
 			// that because the CPU runs too fast and fifo is not emulated.
 			// See also set_dma_end().
-			set_event(PSXINT_SPUDMA, words * 4);
+			set_event(PSXINT_SPUDMA, words * 4 * 4);
 			return;
 
 		case 0x01000200: //spu to cpu transfer
@@ -78,7 +78,7 @@ void psxDma4(u32 madr, u32 bcr, u32 chcr) { // SPU
 			psxCpu->Clear(madr, words_copy);
 
 			HW_DMA4_MADR = SWAPu32(madr + words_copy * 4);
-			set_event(PSXINT_SPUDMA, words * 4);
+			set_event(PSXINT_SPUDMA, words * 4 * 4);
 			return;
 
 		default:
@@ -157,7 +157,7 @@ void psxDma2(u32 madr, u32 bcr, u32 chcr) { // GPU
 			HW_DMA2_MADR = SWAPu32(madr + words_copy * 4);
 
 			// careful: gpu_state_change() also messes with this
-			HW_GPU_STATUS &= SWAP32(~PSXGPU_nBUSY);
+			psxRegs.gpuIdleAfter = psxRegs.cycle + words / 4 + 16;
 			// already 32-bit word size ((size * 4) / 4)
 			set_event(PSXINT_GPUDMA, words / 4);
 			return;
@@ -180,7 +180,7 @@ void psxDma2(u32 madr, u32 bcr, u32 chcr) { // GPU
 			HW_DMA2_MADR = SWAPu32(madr);
 
 			// careful: gpu_state_change() also messes with this
-			HW_GPU_STATUS &= SWAP32(~PSXGPU_nBUSY);
+			psxRegs.gpuIdleAfter = psxRegs.cycle + words / 4 + 16;
 			// already 32-bit word size ((size * 4) / 4)
 			set_event(PSXINT_GPUDMA, words / 4);
 			return;
@@ -191,7 +191,7 @@ void psxDma2(u32 madr, u32 bcr, u32 chcr) { // GPU
 			madr_next = 0xffffff;
 
 			do_walking = Config.GpuListWalking;
-			if (do_walking < 0)
+			if (do_walking < 0 || Config.hacks.gpu_timing1024)
 				do_walking = Config.hacks.gpu_slow_list_walking;
 			madr_next_p = do_walking ? &madr_next : NULL;
 
@@ -199,13 +199,13 @@ void psxDma2(u32 madr, u32 bcr, u32 chcr) { // GPU
 			if ((int)size <= 0)
 				size = gpuDmaChainSize(madr);
 
-			HW_GPU_STATUS &= SWAP32(~PSXGPU_nBUSY);
 			HW_DMA2_MADR = SWAPu32(madr_next);
 
-			// Tekken 3 = use 1.0 only (not 1.5x)
+			// a hack for Judge Dredd which is annoyingly sensitive to timing
+			if (Config.hacks.gpu_timing1024)
+				size = 1024;
 
-			// Einhander = parse linked list in pieces (todo)
-			// Rebel Assault 2 = parse linked list in pieces (todo)
+			psxRegs.gpuIdleAfter = psxRegs.cycle + size + 16;
 			set_event(PSXINT_GPUDMA, size);
 			return;
 
@@ -218,14 +218,13 @@ void psxDma2(u32 madr, u32 bcr, u32 chcr) { // GPU
 	DMA_INTERRUPT(2);
 }
 
-// note: this is also (ab)used for non-dma prim command
-// to delay gpu returning to idle state, see gpu_state_change()
 void gpuInterrupt() {
 	if (HW_DMA2_CHCR == SWAP32(0x01000401) && !(HW_DMA2_MADR & SWAP32(0x800000)))
 	{
-		u32 size, madr_next = 0xffffff;
-		size = GPU_dmaChain((u32 *)psxM, HW_DMA2_MADR & 0x1fffff, &madr_next);
+		u32 size, madr_next = 0xffffff, madr = SWAPu32(HW_DMA2_MADR);
+		size = GPU_dmaChain((u32 *)psxM, madr & 0x1fffff, &madr_next);
 		HW_DMA2_MADR = SWAPu32(madr_next);
+		psxRegs.gpuIdleAfter = psxRegs.cycle + size + 64;
 		set_event(PSXINT_GPUDMA, size);
 		return;
 	}
@@ -234,7 +233,6 @@ void gpuInterrupt() {
 		HW_DMA2_CHCR &= SWAP32(~0x01000000);
 		DMA_INTERRUPT(2);
 	}
-	HW_GPU_STATUS |= SWAP32(PSXGPU_nBUSY); // GPU no longer busy
 }
 
 void psxDma6(u32 madr, u32 bcr, u32 chcr) {
@@ -244,6 +242,7 @@ void psxDma6(u32 madr, u32 bcr, u32 chcr) {
 	PSXDMA_LOG("*** DMA6 OT *** %x addr = %x size = %x\n", chcr, madr, bcr);
 
 	if (chcr == 0x11000002) {
+		madr &= ~3;
 		mem = getDmaRam(madr, &words_max);
 		if (mem == INVALID_PTR) {
 			log_unhandled("bad6 dma madr %x\n", madr);