X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=libpcsxcore%2Fr3000a.c;h=53a5ebac5eb5b9fdf561579b676c1b8c0ebcd910;hb=7b75929b9415646b25d9211975556f5466024a94;hp=e21d4883294a2dc66888895b843b7067a2db0c1b;hpb=943a507a4156b8f5b00e4431152e41eeb4dc6f3d;p=pcsx_rearmed.git

diff --git a/libpcsxcore/r3000a.c b/libpcsxcore/r3000a.c
index e21d4883..53a5ebac 100644
--- a/libpcsxcore/r3000a.c
+++ b/libpcsxcore/r3000a.c
@@ -25,6 +25,7 @@
 #include "cdrom.h"
 #include "mdec.h"
 #include "gte.h"
+#include "psxinterpreter.h"
 
 R3000Acpu *psxCpu = NULL;
 #ifdef DRC_DISABLE
@@ -32,13 +33,14 @@ 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__);
 
 #ifndef DRC_DISABLE
 	if (Config.Cpu == CPU_INTERPRETER) {
 		psxCpu = &psxInt;
 	} else psxCpu = &psxRec;
 #else
+	Config.Cpu = CPU_INTERPRETER;
 	psxCpu = &psxInt;
 #endif
 
@@ -59,13 +61,20 @@ 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();
 
-	if (!Config.HLE)
+	BiosLikeGPUSetup(); // a bit of a hack but whatever
+
+	BiosBooted = FALSE;
+	if (!Config.HLE) {
 		psxExecuteBios();
+		if (psxRegs.pc == 0x80030000 && !Config.SlowBoot)
+			BiosBootBypass();
+	}
 
 #ifdef EMU_LOG
 	EMU_LOG("*BIOS END*\n");
@@ -74,57 +83,46 @@ void psxReset() {
 }
 
 void psxShutdown() {
-	psxMemShutdown();
 	psxBiosShutdown();
 
 	psxCpu->Shutdown();
+
+	psxMemShutdown();
 }
 
-void psxException(u32 code, u32 bd) {
-	#ifdef ICACHE_EMULATION
-	/* Dynarecs may use this codepath and crash as a result.
-	 * This should only be used for the interpreter. - Gameblabla
-	 * */
-	if (Config.icache_emulation && Config.Cpu == CPU_INTERPRETER)
-	{
-		psxRegs.code = SWAPu32(*Read_ICache(psxRegs.pc));
-	}
-	else
-	#endif
-	{
-		psxRegs.code = PSXMu32(psxRegs.pc);
-	}
+// 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
-		extern void (*psxCP2[64])(void *cp2regs);
-		psxCP2[psxRegs.code & 0x3f](&psxRegs.CP2D);
+		psxCP2Regs *cp2 = (void *)(cp0 + 1);
+		psxCP2[psxRegs.code & 0x3f](cp2);
 	}
 
 	// Set the Cause
-	psxRegs.CP0.n.Cause = (psxRegs.CP0.n.Cause & 0x300) | code;
+	cp0->n.Cause = (cp0->n.Cause & 0x300) | code;
 
 	// Set the EPC & PC
 	if (bd) {
 #ifdef PSXCPU_LOG
 		PSXCPU_LOG("bd set!!!\n");
 #endif
-		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);
+	cp0->n.Status = (cp0->n.Status & ~0x3f) | ((cp0->n.Status & 0x0f) << 2);
 
 	if (Config.HLE) psxBiosException();
 }
@@ -134,7 +132,7 @@ 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();
@@ -149,7 +147,7 @@ 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
@@ -188,12 +186,6 @@ void psxBranchTest() {
 				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);
@@ -214,7 +206,7 @@ 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);
 		}
 	}
 }
@@ -251,7 +243,12 @@ void psxJumpTest() {
 }
 
 void psxExecuteBios() {
-	while (psxRegs.pc != 0x80030000)
+	int i;
+	for (i = 0; psxRegs.pc != 0x80030000 && i < 5000000; i++)
 		psxCpu->ExecuteBlock();
+	if (psxRegs.pc == 0x80030000)
+		BiosBooted = TRUE;
+	else
+		SysPrintf("BIOS boot timeout - custom BIOS?\n");
 }