X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=libpcsxcore%2Fpsxmem.c;h=61b14c6550b651eeda5d8000e7456a1dbfe8fa44;hb=fa18abb20fe2316f078023ddec6068bafef86014;hp=14fd9113cbecde5068f3427a0535063871569e66;hpb=5644b26c23a4abd9511c56f39c369a46017585b8;p=pcsx_rearmed.git diff --git a/libpcsxcore/psxmem.c b/libpcsxcore/psxmem.c index 14fd9113..61b14c65 100644 --- a/libpcsxcore/psxmem.c +++ b/libpcsxcore/psxmem.c @@ -176,7 +176,11 @@ int psxMemInit() { memcpy(psxMemWLUT + 0x8000, psxMemWLUT, 0x80 * sizeof(void *)); memcpy(psxMemWLUT + 0xa000, psxMemWLUT, 0x80 * sizeof(void *)); - psxMemWLUT[0x1f00] = (u8 *)psxP; + // Don't allow writes to PIO Expansion region (psxP) to take effect. + // NOTE: Not sure if this is needed to fix any games but seems wise, + // seeing as some games do read from PIO as part of copy-protection + // check. (See fix in psxMemReset() regarding psxP region reads). + psxMemWLUT[0x1f00] = NULL; psxMemWLUT[0x1f80] = (u8 *)psxH; return 0; @@ -187,7 +191,7 @@ void psxMemReset() { char bios[1024]; memset(psxM, 0, 0x00200000); - memset(psxP, 0, 0x00010000); + memset(psxP, 0xff, 0x00010000); if (strcmp(Config.Bios, "HLE") != 0) { sprintf(bios, "%s/%s", Config.BiosDir, Config.Bios); @@ -307,7 +311,7 @@ void psxMemWrite8(u32 mem, u8 value) { if (Config.Debug) DebugCheckBP((mem & 0xffffff) | 0x80000000, W1); *(u8 *)(p + (mem & 0xffff)) = value; -#ifdef PSXREC +#ifndef DRC_DISABLE psxCpu->Clear((mem & (~3)), 1); #endif } else { @@ -334,7 +338,7 @@ void psxMemWrite16(u32 mem, u16 value) { if (Config.Debug) DebugCheckBP((mem & 0xffffff) | 0x80000000, W2); *(u16 *)(p + (mem & 0xffff)) = SWAPu16(value); -#ifdef PSXREC +#ifndef DRC_DISABLE psxCpu->Clear((mem & (~3)), 1); #endif } else { @@ -362,12 +366,12 @@ void psxMemWrite32(u32 mem, u32 value) { if (Config.Debug) DebugCheckBP((mem & 0xffffff) | 0x80000000, W4); *(u32 *)(p + (mem & 0xffff)) = SWAPu32(value); -#ifdef PSXREC +#ifndef DRC_DISABLE psxCpu->Clear(mem, 1); #endif } else { if (mem != 0xfffe0130) { -#ifdef PSXREC +#ifndef DRC_DISABLE if (!writeok) psxCpu->Clear(mem, 1); #endif