Merge Icache emulation from PCSX Redux + Senquack changes from PCSX4ALL

[pcsx_rearmed.git] / libpcsxcore / r3000a.c

diff --git a/libpcsxcore/r3000a.c b/libpcsxcore/r3000a.c
index a8d2745..3288f5c 100644 (file)
--- a/libpcsxcore/r3000a.c
+++ b/libpcsxcore/r3000a.c
@@ -27,6 +27,9 @@
 #include "gte.h"
 
 R3000Acpu *psxCpu = NULL;
+#ifndef NEW_DYNAREC
+psxRegisters psxRegs;
+#endif
 
 int psxInit() {
        SysPrintf(_("Running PCSX Version %s (%s).\n"), PCSX_VERSION, __DATE__);
@@ -50,7 +53,7 @@ void psxReset() {
        psxMemReset();
 
        memset(&psxRegs, 0x00, sizeof(psxRegs));
-
+       writeok = TRUE;
        psxRegs.pc = 0xbfc00000; // Start in bootstrap
 
        psxRegs.CP0.r[12] = 0x10900000; // COP0 enabled | BEV = 1 | TS = 1
@@ -78,7 +81,21 @@ void psxShutdown() {
 }
 
 void psxException(u32 code, u32 bd) {
-       if (!Config.HLE && ((((psxRegs.code = PSXMu32(psxRegs.pc)) >> 24) & 0xfe) == 0x4a)) {
+       #ifdef ICACHE_EMULATION
+       /* Without the CPU_INTERPRETER condition, this will make Lightrec crash.
+        * Hopefully a better solution than this mess is found. - Gameblabla
+       */
+       if (Config.icache_emulation && Config.Cpu == CPU_INTERPRETER)
+       {
+               psxRegs.code = SWAPu32(*Read_ICache(psxRegs.pc));
+       }
+       else
+       #endif
+       {
+               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)