X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=pcsx_rearmed.git;a=blobdiff_plain;f=libpcsxcore%2Fpsxdma.c;h=63c2724d7b406f86f4322dbe45afdde0222e11fe;hp=b7d6d6a07c6634eb5189dc30983f3834a6ea2abc;hb=6c4a10c497c1262acc05b15ffacb57acfffa409c;hpb=57a757cedcc7928894aaf957565adfa95f1caab5

diff --git a/libpcsxcore/psxdma.c b/libpcsxcore/psxdma.c
index b7d6d6a0..63c2724d 100644
--- a/libpcsxcore/psxdma.c
+++ b/libpcsxcore/psxdma.c
@@ -22,13 +22,17 @@
 */
 
 #include "psxdma.h"
+#include "gpu.h"
 
 // Dma0/1 in Mdec.c
 // Dma3   in CdRom.c
 
 void spuInterrupt() {
-	HW_DMA4_CHCR &= SWAP32(~0x01000000);
-	DMA_INTERRUPT(4);
+	if (HW_DMA4_CHCR & SWAP32(0x01000000))
+	{
+		HW_DMA4_CHCR &= SWAP32(~0x01000000);
+		DMA_INTERRUPT(4);
+	}
 }
 
 void psxDma4(u32 madr, u32 bcr, u32 chcr) { // SPU
@@ -140,7 +144,7 @@ void psxDma2(u32 madr, u32 bcr, u32 chcr) { // GPU
 			psxCpu->Clear(madr, size);
 
 			// already 32-bit word size ((size * 4) / 4)
-			GPUDMA_INT(size);
+			GPUDMA_INT(size / 4);
 			return;
 
 		case 0x01000201: // mem2vram
@@ -159,7 +163,7 @@ void psxDma2(u32 madr, u32 bcr, u32 chcr) { // GPU
 			GPU_writeDataMem(ptr, size);
 
 			// already 32-bit word size ((size * 4) / 4)
-			GPUDMA_INT(size);
+			GPUDMA_INT(size / 4);
 			return;
 
 		case 0x01000401: // dma chain
@@ -167,8 +171,10 @@ void psxDma2(u32 madr, u32 bcr, u32 chcr) { // GPU
 			PSXDMA_LOG("*** DMA 2 - GPU dma chain *** %lx addr = %lx size = %lx\n", chcr, madr, bcr);
 #endif
 
-			size = gpuDmaChainSize(madr);
-			GPU_dmaChain((u32 *)psxM, madr & 0x1fffff);
+			size = GPU_dmaChain((u32 *)psxM, madr & 0x1fffff);
+			if ((int)size <= 0)
+				size = gpuDmaChainSize(madr);
+			HW_GPU_STATUS &= ~PSXGPU_nBUSY;
 			
 			// Tekken 3 = use 1.0 only (not 1.5x)
 
@@ -191,8 +197,12 @@ void psxDma2(u32 madr, u32 bcr, u32 chcr) { // GPU
 }
 
 void gpuInterrupt() {
-	HW_DMA2_CHCR &= SWAP32(~0x01000000);
-	DMA_INTERRUPT(2);
+	if (HW_DMA2_CHCR & SWAP32(0x01000000))
+	{
+		HW_DMA2_CHCR &= SWAP32(~0x01000000);
+		DMA_INTERRUPT(2);
+	}
+	HW_GPU_STATUS |= PSXGPU_nBUSY; // GPU no longer busy
 }
 
 void psxDma6(u32 madr, u32 bcr, u32 chcr) {
@@ -238,6 +248,9 @@ void psxDma6(u32 madr, u32 bcr, u32 chcr) {
 
 void gpuotcInterrupt()
 {
-	HW_DMA6_CHCR &= SWAP32(~0x01000000);
-	DMA_INTERRUPT(6);
+	if (HW_DMA6_CHCR & SWAP32(0x01000000))
+	{
+		HW_DMA6_CHCR &= SWAP32(~0x01000000);
+		DMA_INTERRUPT(6);
+	}
 }