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Diffstat (limited to 'PcsxSrc/PsxMem.c')
| -rw-r--r-- | PcsxSrc/PsxMem.c | 250 |
1 files changed, 0 insertions, 250 deletions
diff --git a/PcsxSrc/PsxMem.c b/PcsxSrc/PsxMem.c deleted file mode 100644 index 3905b60..0000000 --- a/PcsxSrc/PsxMem.c +++ /dev/null @@ -1,250 +0,0 @@ -/* Pcsx - Pc Psx Emulator - * Copyright (C) 1999-2002 Pcsx Team - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#include <string.h> -#include <stdlib.h> - -#include "PsxCommon.h" - - -int psxMemInit() { - int i; - - psxMemLUT = (long*)malloc(0x10000 * 4); - memset(psxMemLUT, 0, 0x10000 * 4); - - psxM = (char*)malloc(0x00200000); - psxP = (char*)malloc(0x00010000); - psxH = (char*)malloc(0x00010000); - psxR = (char*)malloc(0x00080000); - if (psxMemLUT == NULL || psxM == NULL || psxP == NULL || psxH == NULL || psxR == NULL) { - SysMessage("Error allocating memory"); return -1; - } - - for (i=0; i<0x80; i++) psxMemLUT[i + 0x0000] = (u32)&psxM[(i & 0x1f) << 16]; - memcpy(psxMemLUT + 0x8000, psxMemLUT, 0x80 * 4); - memcpy(psxMemLUT + 0xa000, psxMemLUT, 0x80 * 4); - - for (i=0; i<0x01; i++) psxMemLUT[i + 0x1f00] = (u32)&psxP[i << 16]; - - for (i=0; i<0x01; i++) psxMemLUT[i + 0x1f80] = (u32)&psxH[i << 16]; - - for (i=0; i<0x08; i++) psxMemLUT[i + 0xbfc0] = (u32)&psxR[i << 16]; - - return 0; -} - -void psxMemReset() { - FILE *f = NULL; - char Bios[256]; - - memset(psxM, 0, 0x00200000); - memset(psxP, 0, 0x00010000); - - if (strcmp(Config.Bios, "HLE")) { - sprintf(Bios, "%s%s", Config.BiosDir, Config.Bios); - f = fopen(Bios, "rb"); - - if (f == NULL) { - SysMessage ("Could not open bios:\"%s\". Enabling HLE Bios\n", Bios); - memset(psxR, 0, 0x80000); - Config.HLE = 1; - } - else { - fread(psxR, 1, 0x80000, f); - fclose(f); - Config.HLE = 0; - } - } else Config.HLE = 1; -} - -void psxMemShutdown() { - free(psxM); - free(psxP); - free(psxH); - free(psxR); - free(psxMemLUT); -} - -static int writeok=1; - -u8 psxMemRead8(u32 mem) { - char *p; - u32 t; - - t = mem >> 16; - if (t == 0x1f80) { - if (mem < 0x1f801000) - return psxHu8(mem); - else - return psxHwRead8(mem); - } else { - p = (char *)(psxMemLUT[t]); - if (p != NULL) { - return *(u8 *)(p + (mem & 0xffff)); - } else { -#ifdef PSXMEM_LOG - PSXMEM_LOG("err lb %8.8lx\n", mem); -#endif - return 0; - } - } -} - -u16 psxMemRead16(u32 mem) { - char *p; - u32 t; - - t = mem >> 16; - if (t == 0x1f80) { - if (mem < 0x1f801000) - return psxHu16(mem); - else - return psxHwRead16(mem); - } else { - p = (char *)(psxMemLUT[t]); - if (p != NULL) { - return *(u16 *)(p + (mem & 0xffff)); - } else { -#ifdef PSXMEM_LOG - PSXMEM_LOG("err lh %8.8lx\n", mem); -#endif - return 0; - } - } -} - -u32 psxMemRead32(u32 mem) { - char *p; - u32 t; - - t = mem >> 16; - if (t == 0x1f80) { - if (mem < 0x1f801000) - return psxHu32(mem); - else - return psxHwRead32(mem); - } else { - p = (char *)(psxMemLUT[t]); - if (p != NULL) { - return *(u32 *)(p + (mem & 0xffff)); - } else { -#ifdef PSXMEM_LOG - if (writeok) PSXMEM_LOG("err lw %8.8lx\n", mem); -#endif - return 0; - } - } -} - -void psxMemWrite8(u32 mem, u8 value) { - char *p; - u32 t; - - t = mem >> 16; - if (t == 0x1f80) { - if (mem < 0x1f801000) - psxHu8(mem) = value; - else - psxHwWrite8(mem, value); - } else { - p = (char *)(psxMemLUT[t]); - if (p != NULL) { - *(u8 *)(p + (mem & 0xffff)) = value; - psxCpu->Clear(mem, 1); - } else { -#ifdef PSXMEM_LOG - PSXMEM_LOG("err sb %8.8lx\n", mem); -#endif - } - } -} - -void psxMemWrite16(u32 mem, u16 value) { - char *p; - u32 t; - - t = mem >> 16; - if (t == 0x1f80) { - if (mem < 0x1f801000) - psxHu16(mem) = value; - else - psxHwWrite16(mem, value); - } else { - p = (char *)(psxMemLUT[t]); - if (p != NULL) { - *(u16 *)(p + (mem & 0xffff)) = value; - psxCpu->Clear(mem, 1); - } else { -#ifdef PSXMEM_LOG - PSXMEM_LOG("err sh %8.8lx\n", mem); -#endif - } - } -} - -void psxMemWrite32(u32 mem, u32 value) { - char *p; - u32 t; - - t = mem >> 16; - if (t == 0x1f80) { - if (mem < 0x1f801000) - psxHu32(mem) = value; - else - psxHwWrite32(mem, value); - } else { - p = (char *)(psxMemLUT[t]); - if (p != NULL) { - *(u32 *)(p + (mem & 0xffff)) = value; - psxCpu->Clear(mem, 1); - } else { - if (mem != 0xfffe0130) { - if (!writeok) psxCpu->Clear(mem, 1); -#ifdef PSXMEM_LOG - if (writeok) { PSXMEM_LOG("err sw %8.8lx\n", mem); } -#endif - } else { - int i; - - switch (value) { - case 0x800: case 0x804: - if (writeok == 0) break; - writeok = 0; - memset(psxMemLUT + 0x0000, 0, 0x80 * 4); - memset(psxMemLUT + 0x8000, 0, 0x80 * 4); - memset(psxMemLUT + 0xa000, 0, 0x80 * 4); - break; - case 0x1e988: - if (writeok == 1) break; - writeok = 1; - for (i=0; i<0x80; i++) psxMemLUT[i + 0x0000] = (u32)&psxM[(i & 0x1f) << 16]; - memcpy(psxMemLUT + 0x8000, psxMemLUT, 0x80 * 4); - memcpy(psxMemLUT + 0xa000, psxMemLUT, 0x80 * 4); - break; - default: -#ifdef PSXMEM_LOG - PSXMEM_LOG("unk %8.8lx = %x\n", mem, value); -#endif - break; - } - } - } - } -} - |