X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=libpcsxcore%2Fr3000a.c;h=8b7cfbf775b6f5d62c33529654669eb9545f6fa5;hb=6d75addfea5544b926d3924b1bd1e1d8ce9ffdb4;hp=27c247bd3f3aa015833d5ac7905ab3aa274878e0;hpb=d28b54b1d1d161b3f3acc3299c43106a022451e6;p=pcsx_rearmed.git

diff --git a/libpcsxcore/r3000a.c b/libpcsxcore/r3000a.c
index 27c247bd..8b7cfbf7 100644
--- a/libpcsxcore/r3000a.c
+++ b/libpcsxcore/r3000a.c
@@ -25,18 +25,22 @@
 #include "cdrom.h"
 #include "mdec.h"
 #include "gte.h"
+#include "psxinterpreter.h"
 
 R3000Acpu *psxCpu = NULL;
+#ifdef DRC_DISABLE
 psxRegisters psxRegs;
+#endif
 
 int psxInit() {
-	SysPrintf(_("Running PCSX Version %s (%s).\n"), PACKAGE_VERSION, __DATE__);
+	SysPrintf(_("Running PCSX Version %s (%s).\n"), PCSX_VERSION, __DATE__);
 
-#ifdef PSXREC
+#ifndef DRC_DISABLE
 	if (Config.Cpu == CPU_INTERPRETER) {
 		psxCpu = &psxInt;
 	} else psxCpu = &psxRec;
 #else
+	Config.Cpu = CPU_INTERPRETER;
 	psxCpu = &psxInt;
 #endif
 
@@ -48,8 +52,6 @@ int psxInit() {
 }
 
 void psxReset() {
-	psxCpu->Reset();
-
 	psxMemReset();
 
 	memset(&psxRegs, 0, sizeof(psxRegs));
@@ -59,6 +61,9 @@ 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->ApplyConfig();
+	psxCpu->Reset();
+
 	psxHwReset();
 	psxBiosInit();
 
@@ -72,40 +77,46 @@ void psxReset() {
 }
 
 void psxShutdown() {
-	psxMemShutdown();
 	psxBiosShutdown();
 
 	psxCpu->Shutdown();
+
+	psxMemShutdown();
 }
 
-void psxException(u32 code, u32 bd) {
+// cp0 is passed separately for lightrec to be less messy
+void psxException(u32 code, u32 bd, psxCP0Regs *cp0) {
+	psxRegs.code = PSXMu32(psxRegs.pc);
+	
+	if (!Config.HLE && ((((psxRegs.code) >> 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
+		psxCP2Regs *cp2 = (void *)(cp0 + 1);
+		psxCP2[psxRegs.code & 0x3f](cp2);
+	}
+
 	// Set the Cause
-	psxRegs.CP0.n.Cause = code;
+	cp0->n.Cause = (cp0->n.Cause & 0x300) | code;
 
 	// Set the EPC & PC
 	if (bd) {
 #ifdef PSXCPU_LOG
 		PSXCPU_LOG("bd set!!!\n");
 #endif
-		SysPrintf("bd set!!!\n");
-		psxRegs.CP0.n.Cause |= 0x80000000;
-		psxRegs.CP0.n.EPC = (psxRegs.pc - 4);
+		cp0->n.Cause |= 0x80000000;
+		cp0->n.EPC = (psxRegs.pc - 4);
 	} else
-		psxRegs.CP0.n.EPC = (psxRegs.pc);
+		cp0->n.EPC = (psxRegs.pc);
 
-	if (psxRegs.CP0.n.Status & 0x400000)
+	if (cp0->n.Status & 0x400000)
 		psxRegs.pc = 0xbfc00180;
 	else
 		psxRegs.pc = 0x80000080;
 
 	// Set the Status
-	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);
-	}
+	cp0->n.Status = (cp0->n.Status & ~0x3f) | ((cp0->n.Status & 0x0f) << 2);
 
 	if (Config.HLE) psxBiosException();
 }
@@ -115,7 +126,7 @@ void psxBranchTest() {
 		psxRcntUpdate();
 
 	if (psxRegs.interrupt) {
-		if ((psxRegs.interrupt & (1 << PSXINT_SIO)) && !Config.Sio) { // sio
+		if ((psxRegs.interrupt & (1 << PSXINT_SIO))) { // sio
 			if ((psxRegs.cycle - psxRegs.intCycle[PSXINT_SIO].sCycle) >= psxRegs.intCycle[PSXINT_SIO].cycle) {
 				psxRegs.interrupt &= ~(1 << PSXINT_SIO);
 				sioInterrupt();
@@ -130,7 +141,7 @@ void psxBranchTest() {
 		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();
+				cdrPlayReadInterrupt();
 			}
 		}
 		if (psxRegs.interrupt & (1 << PSXINT_GPUDMA)) { // gpu dma
@@ -151,6 +162,36 @@ void psxBranchTest() {
 				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_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)) {
@@ -159,7 +200,7 @@ void psxBranchTest() {
 			PSXCPU_LOG("Interrupt: %x %x\n", psxHu32(0x1070), psxHu32(0x1074));
 #endif
 //			SysPrintf("Interrupt (%x): %x %x\n", psxRegs.cycle, psxHu32(0x1070), psxHu32(0x1074));
-			psxException(0x400, 0);
+			psxException(0x400, 0, &psxRegs.CP0);
 		}
 	}
 }