X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=pcsx_rearmed.git;a=blobdiff_plain;f=libpcsxcore%2Fr3000a.c;h=82eb88578534c9a3411eb5806b655aacb7cae03b;hp=8c6289e66349357a5a99263aacf110ac04dcc103;hb=2b30c1291db9d9801d51cf85f71f40fe54958898;hpb=ef79bbde537d6b9c745a7d86cb9df1d04c35590d

diff --git a/libpcsxcore/r3000a.c b/libpcsxcore/r3000a.c
index 8c6289e6..82eb8857 100644
--- a/libpcsxcore/r3000a.c
+++ b/libpcsxcore/r3000a.c
@@ -48,8 +48,6 @@ int psxInit() {
 }
 
 void psxReset() {
-	psxCpu->Reset();
-
 	psxMemReset();
 
 	memset(&psxRegs, 0, sizeof(psxRegs));
@@ -59,6 +57,8 @@ void psxReset() {
 	psxRegs.CP0.r[12] = 0x10900000; // COP0 enabled | BEV = 1 | TS = 1
 	psxRegs.CP0.r[15] = 0x00000002; // PRevID = Revision ID, same as R3000A
 
+	psxCpu->Reset();
+
 	psxHwReset();
 	psxBiosInit();
 
@@ -79,8 +79,17 @@ void psxShutdown() {
 }
 
 void psxException(u32 code, u32 bd) {
+	if (!Config.HLE && ((((psxRegs.code = PSXMu32(psxRegs.pc)) >> 24) & 0xfe) == 0x4a)) {
+		// "hokuto no ken" / "Crash Bandicot 2" ...
+		// BIOS does not allow to return to GTE instructions
+		// (just skips it, supposedly because it's scheduled already)
+		// so we execute it here
+		extern void (*psxCP2[64])(void *cp2regs);
+		psxCP2[psxRegs.code & 0x3f](&psxRegs.CP2D);
+	}
+
 	// Set the Cause
-	psxRegs.CP0.n.Cause = code;
+	psxRegs.CP0.n.Cause = (psxRegs.CP0.n.Cause & 0x300) | code;
 
 	// Set the EPC & PC
 	if (bd) {
@@ -102,11 +111,6 @@ void psxException(u32 code, u32 bd) {
 	psxRegs.CP0.n.Status = (psxRegs.CP0.n.Status &~0x3f) |
 						  ((psxRegs.CP0.n.Status & 0xf) << 2);
 
-	if (!Config.HLE && (((PSXMu32(psxRegs.CP0.n.EPC) >> 24) & 0xfe) == 0x4a)) {
-		// "hokuto no ken" / "Crash Bandicot 2" ... fix
-		PSXMu32ref(psxRegs.CP0.n.EPC)&= SWAPu32(~0x02000000);
-	}
-
 	if (Config.HLE) psxBiosException();
 }
 
@@ -115,42 +119,78 @@ void psxBranchTest() {
 		psxRcntUpdate();
 
 	if (psxRegs.interrupt) {
-		if ((psxRegs.interrupt & 0x80) && !Config.Sio) { // sio
-			if ((psxRegs.cycle - psxRegs.intCycle[7]) >= psxRegs.intCycle[7 + 1]) {
-				psxRegs.interrupt &= ~0x80;
+		if ((psxRegs.interrupt & (1 << PSXINT_SIO)) && !Config.Sio) { // sio
+			if ((psxRegs.cycle - psxRegs.intCycle[PSXINT_SIO].sCycle) >= psxRegs.intCycle[PSXINT_SIO].cycle) {
+				psxRegs.interrupt &= ~(1 << PSXINT_SIO);
 				sioInterrupt();
 			}
 		}
-		if (psxRegs.interrupt & 0x04) { // cdr
-			if ((psxRegs.cycle - psxRegs.intCycle[2]) >= psxRegs.intCycle[2 + 1]) {
-				psxRegs.interrupt &= ~0x04;
+		if (psxRegs.interrupt & (1 << PSXINT_CDR)) { // cdr
+			if ((psxRegs.cycle - psxRegs.intCycle[PSXINT_CDR].sCycle) >= psxRegs.intCycle[PSXINT_CDR].cycle) {
+				psxRegs.interrupt &= ~(1 << PSXINT_CDR);
 				cdrInterrupt();
 			}
 		}
-		if (psxRegs.interrupt & 0x040000) { // cdr read
-			if ((psxRegs.cycle - psxRegs.intCycle[2 + 16]) >= psxRegs.intCycle[2 + 16 + 1]) {
-				psxRegs.interrupt &= ~0x040000;
+		if (psxRegs.interrupt & (1 << PSXINT_CDREAD)) { // cdr read
+			if ((psxRegs.cycle - psxRegs.intCycle[PSXINT_CDREAD].sCycle) >= psxRegs.intCycle[PSXINT_CDREAD].cycle) {
+				psxRegs.interrupt &= ~(1 << PSXINT_CDREAD);
 				cdrReadInterrupt();
 			}
 		}
-		if (psxRegs.interrupt & 0x01000000) { // gpu dma
-			if ((psxRegs.cycle - psxRegs.intCycle[3 + 24]) >= psxRegs.intCycle[3 + 24 + 1]) {
-				psxRegs.interrupt &= ~0x01000000;
+		if (psxRegs.interrupt & (1 << PSXINT_GPUDMA)) { // gpu dma
+			if ((psxRegs.cycle - psxRegs.intCycle[PSXINT_GPUDMA].sCycle) >= psxRegs.intCycle[PSXINT_GPUDMA].cycle) {
+				psxRegs.interrupt &= ~(1 << PSXINT_GPUDMA);
 				gpuInterrupt();
 			}
 		}
-		if (psxRegs.interrupt & 0x02000000) { // mdec out dma
-			if ((psxRegs.cycle - psxRegs.intCycle[5 + 24]) >= psxRegs.intCycle[5 + 24 + 1]) {
-				psxRegs.interrupt &= ~0x02000000;
+		if (psxRegs.interrupt & (1 << PSXINT_MDECOUTDMA)) { // mdec out dma
+			if ((psxRegs.cycle - psxRegs.intCycle[PSXINT_MDECOUTDMA].sCycle) >= psxRegs.intCycle[PSXINT_MDECOUTDMA].cycle) {
+				psxRegs.interrupt &= ~(1 << PSXINT_MDECOUTDMA);
 				mdec1Interrupt();
 			}
 		}
-		if (psxRegs.interrupt & 0x04000000) { // spu dma
-			if ((psxRegs.cycle - psxRegs.intCycle[1 + 24]) >= psxRegs.intCycle[1 + 24 + 1]) {
-				psxRegs.interrupt &= ~0x04000000;
+		if (psxRegs.interrupt & (1 << PSXINT_SPUDMA)) { // spu dma
+			if ((psxRegs.cycle - psxRegs.intCycle[PSXINT_SPUDMA].sCycle) >= psxRegs.intCycle[PSXINT_SPUDMA].cycle) {
+				psxRegs.interrupt &= ~(1 << PSXINT_SPUDMA);
 				spuInterrupt();
 			}
 		}
+		if (psxRegs.interrupt & (1 << PSXINT_MDECINDMA)) { // mdec in
+			if ((psxRegs.cycle - psxRegs.intCycle[PSXINT_MDECINDMA].sCycle) >= psxRegs.intCycle[PSXINT_MDECINDMA].cycle) {
+				psxRegs.interrupt &= ~(1 << PSXINT_MDECINDMA);
+				mdec0Interrupt();
+			}
+		}
+		if (psxRegs.interrupt & (1 << PSXINT_GPUOTCDMA)) { // gpu otc
+			if ((psxRegs.cycle - psxRegs.intCycle[PSXINT_GPUOTCDMA].sCycle) >= psxRegs.intCycle[PSXINT_GPUOTCDMA].cycle) {
+				psxRegs.interrupt &= ~(1 << PSXINT_GPUOTCDMA);
+				gpuotcInterrupt();
+			}
+		}
+		if (psxRegs.interrupt & (1 << PSXINT_CDRDMA)) { // cdrom
+			if ((psxRegs.cycle - psxRegs.intCycle[PSXINT_CDRDMA].sCycle) >= psxRegs.intCycle[PSXINT_CDRDMA].cycle) {
+				psxRegs.interrupt &= ~(1 << PSXINT_CDRDMA);
+				cdrDmaInterrupt();
+			}
+		}
+		if (psxRegs.interrupt & (1 << PSXINT_CDRPLAY)) { // cdr play timing
+			if ((psxRegs.cycle - psxRegs.intCycle[PSXINT_CDRPLAY].sCycle) >= psxRegs.intCycle[PSXINT_CDRPLAY].cycle) {
+				psxRegs.interrupt &= ~(1 << PSXINT_CDRPLAY);
+				cdrPlayInterrupt();
+			}
+		}
+		if (psxRegs.interrupt & (1 << PSXINT_CDRLID)) { // cdr lid states
+			if ((psxRegs.cycle - psxRegs.intCycle[PSXINT_CDRLID].sCycle) >= psxRegs.intCycle[PSXINT_CDRLID].cycle) {
+				psxRegs.interrupt &= ~(1 << PSXINT_CDRLID);
+				cdrLidSeekInterrupt();
+			}
+		}
+		if (psxRegs.interrupt & (1 << PSXINT_SPU_UPDATE)) { // scheduled spu update
+			if ((psxRegs.cycle - psxRegs.intCycle[PSXINT_SPU_UPDATE].sCycle) >= psxRegs.intCycle[PSXINT_SPU_UPDATE].cycle) {
+				psxRegs.interrupt &= ~(1 << PSXINT_SPU_UPDATE);
+				spuUpdate();
+			}
+		}
 	}
 
 	if (psxHu32(0x1070) & psxHu32(0x1074)) {