an alt hack for Judge Dredd

[pcsx_rearmed.git] / libpcsxcore / psxdma.c

diff --git a/libpcsxcore/psxdma.c b/libpcsxcore/psxdma.c
index 4db99ab..a7c438e 100644 (file)
--- 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:
@@ -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;
 
@@ -201,10 +201,10 @@ void psxDma2(u32 madr, u32 bcr, u32 chcr) { // GPU
 
                        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;
@@ -221,8 +221,8 @@ void psxDma2(u32 madr, u32 bcr, u32 chcr) { // GPU
 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);