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-rwxr-xr-x[-rw-r--r--]libpcsxcore/misc.c1498
1 files changed, 749 insertions, 749 deletions
diff --git a/libpcsxcore/misc.c b/libpcsxcore/misc.c
index 1de0aff8..297b1367 100644..100755
--- a/libpcsxcore/misc.c
+++ b/libpcsxcore/misc.c
@@ -1,749 +1,749 @@
-/***************************************************************************
- * Copyright (C) 2007 Ryan Schultz, PCSX-df Team, 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., *
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
- ***************************************************************************/
-
-/*
-* Miscellaneous functions, including savestates and CD-ROM loading.
-*/
-
-#include "misc.h"
-#include "cdrom.h"
-#include "mdec.h"
-#include "ppf.h"
-
-char CdromId[10] = "";
-char CdromLabel[33] = "";
-
-// PSX Executable types
-#define PSX_EXE 1
-#define CPE_EXE 2
-#define COFF_EXE 3
-#define INVALID_EXE 4
-
-#define ISODCL(from, to) (to - from + 1)
-
-struct iso_directory_record {
- char length [ISODCL (1, 1)]; /* 711 */
- char ext_attr_length [ISODCL (2, 2)]; /* 711 */
- char extent [ISODCL (3, 10)]; /* 733 */
- char size [ISODCL (11, 18)]; /* 733 */
- char date [ISODCL (19, 25)]; /* 7 by 711 */
- char flags [ISODCL (26, 26)];
- char file_unit_size [ISODCL (27, 27)]; /* 711 */
- char interleave [ISODCL (28, 28)]; /* 711 */
- char volume_sequence_number [ISODCL (29, 32)]; /* 723 */
- unsigned char name_len [ISODCL (33, 33)]; /* 711 */
- char name [1];
-};
-
-void mmssdd( char *b, char *p )
-{
- int m, s, d;
-#if defined(__BIGENDIAN__)
- int block = (b[0] & 0xff) | ((b[1] & 0xff) << 8) | ((b[2] & 0xff) << 16) | (b[3] << 24);
-#else
- int block = *((int*)b);
-#endif
-
- block += 150;
- m = block / 4500; // minutes
- block = block - m * 4500; // minutes rest
- s = block / 75; // seconds
- d = block - s * 75; // seconds rest
-
- m = ((m / 10) << 4) | m % 10;
- s = ((s / 10) << 4) | s % 10;
- d = ((d / 10) << 4) | d % 10;
-
- p[0] = m;
- p[1] = s;
- p[2] = d;
-}
-
-#define incTime() \
- time[0] = btoi(time[0]); time[1] = btoi(time[1]); time[2] = btoi(time[2]); \
- time[2]++; \
- if(time[2] == 75) { \
- time[2] = 0; \
- time[1]++; \
- if (time[1] == 60) { \
- time[1] = 0; \
- time[0]++; \
- } \
- } \
- time[0] = itob(time[0]); time[1] = itob(time[1]); time[2] = itob(time[2]);
-
-#define READTRACK() \
- if (CDR_readTrack(time) == -1) return -1; \
- buf = CDR_getBuffer(); \
- if (buf == NULL) return -1; else CheckPPFCache(buf, time[0], time[1], time[2]);
-
-#define READDIR(_dir) \
- READTRACK(); \
- memcpy(_dir, buf + 12, 2048); \
- \
- incTime(); \
- READTRACK(); \
- memcpy(_dir + 2048, buf + 12, 2048);
-
-int GetCdromFile(u8 *mdir, u8 *time, s8 *filename) {
- struct iso_directory_record *dir;
- char ddir[4096];
- u8 *buf;
- int i;
-
- // only try to scan if a filename is given
- if (!strlen(filename)) return -1;
-
- i = 0;
- while (i < 4096) {
- dir = (struct iso_directory_record*) &mdir[i];
- if (dir->length[0] == 0) {
- return -1;
- }
- i += dir->length[0];
-
- if (dir->flags[0] & 0x2) { // it's a dir
- if (!strnicmp((char *)&dir->name[0], filename, dir->name_len[0])) {
- if (filename[dir->name_len[0]] != '\\') continue;
-
- filename += dir->name_len[0] + 1;
-
- mmssdd(dir->extent, (char *)time);
- READDIR(ddir);
- i = 0;
- mdir = ddir;
- }
- } else {
- if (!strnicmp((char *)&dir->name[0], filename, strlen(filename))) {
- mmssdd(dir->extent, (char *)time);
- break;
- }
- }
- }
- return 0;
-}
-
-int LoadCdrom() {
- EXE_HEADER tmpHead;
- struct iso_directory_record *dir;
- u8 time[4], *buf;
- u8 mdir[4096];
- s8 exename[256];
-
- if (!Config.HLE) {
- if (!Config.SlowBoot) psxRegs.pc = psxRegs.GPR.n.ra;
- return 0;
- }
-
- time[0] = itob(0); time[1] = itob(2); time[2] = itob(0x10);
-
- READTRACK();
-
- // skip head and sub, and go to the root directory record
- dir = (struct iso_directory_record*) &buf[12+156];
-
- mmssdd(dir->extent, (char*)time);
-
- READDIR(mdir);
-
- // Load SYSTEM.CNF and scan for the main executable
- if (GetCdromFile(mdir, time, "SYSTEM.CNF;1") == -1) {
- // if SYSTEM.CNF is missing, start an existing PSX.EXE
- if (GetCdromFile(mdir, time, "PSX.EXE;1") == -1) return -1;
-
- READTRACK();
- }
- else {
- // read the SYSTEM.CNF
- READTRACK();
-
- sscanf((char *)buf + 12, "BOOT = cdrom:\\%256s", exename);
- if (GetCdromFile(mdir, time, exename) == -1) {
- sscanf((char *)buf + 12, "BOOT = cdrom:%256s", exename);
- if (GetCdromFile(mdir, time, exename) == -1) {
- char *ptr = strstr(buf + 12, "cdrom:");
- if (ptr != NULL) {
- ptr += 6;
- while (*ptr == '\\' || *ptr == '/') ptr++;
- strncpy(exename, ptr, 255);
- exename[255] = '\0';
- ptr = exename;
- while (*ptr != '\0' && *ptr != '\r' && *ptr != '\n') ptr++;
- *ptr = '\0';
- if (GetCdromFile(mdir, time, exename) == -1)
- return -1;
- } else
- return -1;
- }
- }
-
- // Read the EXE-Header
- READTRACK();
- }
-
- memcpy(&tmpHead, buf + 12, sizeof(EXE_HEADER));
-
- psxRegs.pc = SWAP32(tmpHead.pc0);
- psxRegs.GPR.n.gp = SWAP32(tmpHead.gp0);
- psxRegs.GPR.n.sp = SWAP32(tmpHead.s_addr);
- if (psxRegs.GPR.n.sp == 0) psxRegs.GPR.n.sp = 0x801fff00;
-
- tmpHead.t_size = SWAP32(tmpHead.t_size);
- tmpHead.t_addr = SWAP32(tmpHead.t_addr);
-
- // Read the rest of the main executable
- while (tmpHead.t_size) {
- void *ptr = (void *)PSXM(tmpHead.t_addr);
-
- incTime();
- READTRACK();
-
- if (ptr != NULL) memcpy(ptr, buf+12, 2048);
-
- tmpHead.t_size -= 2048;
- tmpHead.t_addr += 2048;
- }
-
- return 0;
-}
-
-int LoadCdromFile(const char *filename, EXE_HEADER *head) {
- struct iso_directory_record *dir;
- u8 time[4],*buf;
- u8 mdir[4096], exename[256];
- u32 size, addr;
-
- sscanf(filename, "cdrom:\\%256s", exename);
-
- time[0] = itob(0); time[1] = itob(2); time[2] = itob(0x10);
-
- READTRACK();
-
- // skip head and sub, and go to the root directory record
- dir = (struct iso_directory_record *)&buf[12 + 156];
-
- mmssdd(dir->extent, (char*)time);
-
- READDIR(mdir);
-
- if (GetCdromFile(mdir, time, exename) == -1) return -1;
-
- READTRACK();
-
- memcpy(head, buf + 12, sizeof(EXE_HEADER));
- size = head->t_size;
- addr = head->t_addr;
-
- while (size) {
- incTime();
- READTRACK();
-
- memcpy((void *)PSXM(addr), buf + 12, 2048);
-
- size -= 2048;
- addr += 2048;
- }
-
- return 0;
-}
-
-int CheckCdrom() {
- struct iso_directory_record *dir;
- unsigned char time[4], *buf;
- unsigned char mdir[4096];
- char exename[256];
- int i, c;
-
- FreePPFCache();
-
- time[0] = itob(0);
- time[1] = itob(2);
- time[2] = itob(0x10);
-
- READTRACK();
-
- CdromLabel[0] = '\0';
- CdromId[0] = '\0';
-
- strncpy(CdromLabel, buf + 52, 32);
-
- // skip head and sub, and go to the root directory record
- dir = (struct iso_directory_record *)&buf[12 + 156];
-
- mmssdd(dir->extent, (char *)time);
-
- READDIR(mdir);
-
- if (GetCdromFile(mdir, time, "SYSTEM.CNF;1") != -1) {
- READTRACK();
-
- sscanf((char *)buf + 12, "BOOT = cdrom:\\%256s", exename);
- if (GetCdromFile(mdir, time, exename) == -1) {
- sscanf((char *)buf + 12, "BOOT = cdrom:%256s", exename);
- if (GetCdromFile(mdir, time, exename) == -1) {
- char *ptr = strstr(buf + 12, "cdrom:"); // possibly the executable is in some subdir
- if (ptr != NULL) {
- ptr += 6;
- while (*ptr == '\\' || *ptr == '/') ptr++;
- strncpy(exename, ptr, 255);
- exename[255] = '\0';
- ptr = exename;
- while (*ptr != '\0' && *ptr != '\r' && *ptr != '\n') ptr++;
- *ptr = '\0';
- if (GetCdromFile(mdir, time, exename) == -1)
- return -1; // main executable not found
- } else
- return -1;
- }
- }
- } else if (GetCdromFile(mdir, time, "PSX.EXE;1") != -1) {
- strcpy(exename, "PSX.EXE;1");
- strcpy(CdromId, "SLUS99999");
- } else
- return -1; // SYSTEM.CNF and PSX.EXE not found
-
- if (CdromId[0] == '\0') {
- i = strlen(exename);
- if (i >= 2) {
- if (exename[i - 2] == ';') i-= 2;
- c = 8; i--;
- while (i >= 0 && c >= 0) {
- if (isalnum(exename[i])) CdromId[c--] = exename[i];
- i--;
- }
- }
- }
-
- if (Config.PsxAuto) { // autodetect system (pal or ntsc)
- if((CdromId[2] == 'e') || (CdromId[2] == 'E') ||
- !strncmp(CdromId, "\0DTLS3035", 10) ||
- !strncmp(CdromId, "PBPX95001", 10) || // according to redump.org, these PAL
- !strncmp(CdromId, "PBPX95007", 10) || // discs have a non-standard ID;
- !strncmp(CdromId, "PBPX95008", 10)) // add more serials if they are discovered.
- Config.PsxType = PSX_TYPE_PAL; // pal
- else Config.PsxType = PSX_TYPE_NTSC; // ntsc
- }
-
- if (CdromLabel[0] == ' ') {
- strncpy(CdromLabel, CdromId, 9);
- }
- SysPrintf(_("CD-ROM Label: %.32s\n"), CdromLabel);
- SysPrintf(_("CD-ROM ID: %.9s\n"), CdromId);
-
- BuildPPFCache();
- LoadSBI();
-
- return 0;
-}
-
-static int PSXGetFileType(FILE *f) {
- unsigned long current;
- u8 mybuf[2048];
- EXE_HEADER *exe_hdr;
- FILHDR *coff_hdr;
-
- current = ftell(f);
- fseek(f, 0L, SEEK_SET);
- fread(mybuf, 2048, 1, f);
- fseek(f, current, SEEK_SET);
-
- exe_hdr = (EXE_HEADER *)mybuf;
- if (memcmp(exe_hdr->id, "PS-X EXE", 8) == 0)
- return PSX_EXE;
-
- if (mybuf[0] == 'C' && mybuf[1] == 'P' && mybuf[2] == 'E')
- return CPE_EXE;
-
- coff_hdr = (FILHDR *)mybuf;
- if (SWAPu16(coff_hdr->f_magic) == 0x0162)
- return COFF_EXE;
-
- return INVALID_EXE;
-}
-
-static void LoadLibPS() {
- char buf[MAXPATHLEN];
- FILE *f;
-
- // Load Net Yaroze runtime library (if exists)
- sprintf(buf, "%s/libps.exe", Config.BiosDir);
- f = fopen(buf, "rb");
-
- if (f != NULL) {
- fseek(f, 0x800, SEEK_SET);
- fread(psxM + 0x10000, 0x61000, 1, f);
- fclose(f);
- }
-}
-
-int Load(const char *ExePath) {
- FILE *tmpFile;
- EXE_HEADER tmpHead;
- FILHDR coffHead;
- AOUTHDR optHead;
- SCNHDR section;
- int type, i;
- int retval = 0;
- u8 opcode;
- u32 section_address, section_size;
-
- strncpy(CdromId, "SLUS99999", 9);
- strncpy(CdromLabel, "SLUS_999.99", 11);
-
- tmpFile = fopen(ExePath, "rb");
- if (tmpFile == NULL) {
- SysPrintf(_("Error opening file: %s.\n"), ExePath);
- retval = -1;
- } else {
- LoadLibPS();
-
- type = PSXGetFileType(tmpFile);
- switch (type) {
- case PSX_EXE:
- fread(&tmpHead, sizeof(EXE_HEADER), 1, tmpFile);
- fseek(tmpFile, 0x800, SEEK_SET);
- fread(PSXM(SWAP32(tmpHead.t_addr)), SWAP32(tmpHead.t_size), 1, tmpFile);
- fclose(tmpFile);
- psxRegs.pc = SWAP32(tmpHead.pc0);
- psxRegs.GPR.n.gp = SWAP32(tmpHead.gp0);
- psxRegs.GPR.n.sp = SWAP32(tmpHead.s_addr);
- if (psxRegs.GPR.n.sp == 0)
- psxRegs.GPR.n.sp = 0x801fff00;
- retval = 0;
- break;
-
- case CPE_EXE:
- fseek(tmpFile, 6, SEEK_SET); /* Something tells me we should go to 4 and read the "08 00" here... */
- do {
- fread(&opcode, 1, 1, tmpFile);
- switch (opcode) {
- case 1: /* Section loading */
- fread(&section_address, 4, 1, tmpFile);
- fread(&section_size, 4, 1, tmpFile);
- section_address = SWAPu32(section_address);
- section_size = SWAPu32(section_size);
-#ifdef EMU_LOG
- EMU_LOG("Loading %08X bytes from %08X to %08X\n", section_size, ftell(tmpFile), section_address);
-#endif
- fread(PSXM(section_address), section_size, 1, tmpFile);
- break;
- case 3: /* register loading (PC only?) */
- fseek(tmpFile, 2, SEEK_CUR); /* unknown field */
- fread(&psxRegs.pc, 4, 1, tmpFile);
- psxRegs.pc = SWAPu32(psxRegs.pc);
- break;
- case 0: /* End of file */
- break;
- default:
- SysPrintf(_("Unknown CPE opcode %02x at position %08x.\n"), opcode, ftell(tmpFile) - 1);
- retval = -1;
- break;
- }
- } while (opcode != 0 && retval == 0);
- break;
-
- case COFF_EXE:
- fread(&coffHead, sizeof(coffHead), 1, tmpFile);
- fread(&optHead, sizeof(optHead), 1, tmpFile);
-
- psxRegs.pc = SWAP32(optHead.entry);
- psxRegs.GPR.n.sp = 0x801fff00;
-
- for (i = 0; i < SWAP16(coffHead.f_nscns); i++) {
- fseek(tmpFile, sizeof(FILHDR) + SWAP16(coffHead.f_opthdr) + sizeof(section) * i, SEEK_SET);
- fread(&section, sizeof(section), 1, tmpFile);
-
- if (section.s_scnptr != 0) {
- fseek(tmpFile, SWAP32(section.s_scnptr), SEEK_SET);
- fread(PSXM(SWAP32(section.s_paddr)), SWAP32(section.s_size), 1, tmpFile);
- } else {
- memset(PSXM(SWAP32(section.s_paddr)), 0, SWAP32(section.s_size));
- }
- }
- break;
-
- case INVALID_EXE:
- SysPrintf(_("This file does not appear to be a valid PSX file.\n"));
- retval = -1;
- break;
- }
- }
-
- if (retval != 0) {
- CdromId[0] = '\0';
- CdromLabel[0] = '\0';
- }
-
- return retval;
-}
-
-// STATES
-
-static const char PcsxrHeader[32] = "STv4 PCSXR v" PACKAGE_VERSION;
-
-// Savestate Versioning!
-// If you make changes to the savestate version, please increment the value below.
-static const u32 SaveVersion = 0x8b410007;
-
-int SaveState(const char *file) {
- gzFile f;
- GPUFreeze_t *gpufP;
- SPUFreeze_t *spufP;
- int Size;
- unsigned char *pMem;
-
- f = gzopen(file, "wb");
- if (f == NULL) return -1;
-
- gzwrite(f, (void *)PcsxrHeader, 32);
- gzwrite(f, (void *)&SaveVersion, sizeof(u32));
- gzwrite(f, (void *)&Config.HLE, sizeof(boolean));
-
- pMem = (unsigned char *)malloc(128 * 96 * 3);
- if (pMem == NULL) return -1;
- GPU_getScreenPic(pMem);
- gzwrite(f, pMem, 128 * 96 * 3);
- free(pMem);
-
- if (Config.HLE)
- psxBiosFreeze(1);
-
- gzwrite(f, psxM, 0x00200000);
- gzwrite(f, psxR, 0x00080000);
- gzwrite(f, psxH, 0x00010000);
- gzwrite(f, (void *)&psxRegs, sizeof(psxRegs));
-
- // gpu
- gpufP = (GPUFreeze_t *)malloc(sizeof(GPUFreeze_t));
- gpufP->ulFreezeVersion = 1;
- GPU_freeze(1, gpufP);
- gzwrite(f, gpufP, sizeof(GPUFreeze_t));
- free(gpufP);
-
- // spu
- spufP = (SPUFreeze_t *) malloc(16);
- SPU_freeze(2, spufP);
- Size = spufP->Size; gzwrite(f, &Size, 4);
- free(spufP);
- spufP = (SPUFreeze_t *) malloc(Size);
- SPU_freeze(1, spufP);
- gzwrite(f, spufP, Size);
- free(spufP);
-
- sioFreeze(f, 1);
- cdrFreeze(f, 1);
- psxHwFreeze(f, 1);
- psxRcntFreeze(f, 1);
- mdecFreeze(f, 1);
-
- gzclose(f);
-
- return 0;
-}
-
-int LoadState(const char *file) {
- gzFile f;
- GPUFreeze_t *gpufP;
- SPUFreeze_t *spufP;
- int Size;
- char header[32];
- u32 version;
- boolean hle;
-
- f = gzopen(file, "rb");
- if (f == NULL) return -1;
-
- gzread(f, header, sizeof(header));
- gzread(f, &version, sizeof(u32));
- gzread(f, &hle, sizeof(boolean));
-
- if (strncmp("STv4 PCSXR", header, 10) != 0 || version != SaveVersion || hle != Config.HLE) {
- gzclose(f);
- return -1;
- }
-
- psxCpu->Reset();
- gzseek(f, 128 * 96 * 3, SEEK_CUR);
-
- gzread(f, psxM, 0x00200000);
- gzread(f, psxR, 0x00080000);
- gzread(f, psxH, 0x00010000);
- gzread(f, (void *)&psxRegs, sizeof(psxRegs));
-
- if (Config.HLE)
- psxBiosFreeze(0);
-
- // gpu
- gpufP = (GPUFreeze_t *)malloc(sizeof(GPUFreeze_t));
- gzread(f, gpufP, sizeof(GPUFreeze_t));
- GPU_freeze(0, gpufP);
- free(gpufP);
-
- // spu
- gzread(f, &Size, 4);
- spufP = (SPUFreeze_t *)malloc(Size);
- gzread(f, spufP, Size);
- SPU_freeze(0, spufP);
- free(spufP);
-
- sioFreeze(f, 0);
- cdrFreeze(f, 0);
- psxHwFreeze(f, 0);
- psxRcntFreeze(f, 0);
- mdecFreeze(f, 0);
-
- gzclose(f);
-
- return 0;
-}
-
-int CheckState(const char *file) {
- gzFile f;
- char header[32];
- u32 version;
- boolean hle;
-
- f = gzopen(file, "rb");
- if (f == NULL) return -1;
-
- gzread(f, header, sizeof(header));
- gzread(f, &version, sizeof(u32));
- gzread(f, &hle, sizeof(boolean));
-
- gzclose(f);
-
- if (strncmp("STv4 PCSXR", header, 10) != 0 || version != SaveVersion || hle != Config.HLE)
- return -1;
-
- return 0;
-}
-
-// NET Function Helpers
-
-int SendPcsxInfo() {
- if (NET_recvData == NULL || NET_sendData == NULL)
- return 0;
-
- NET_sendData(&Config.Xa, sizeof(Config.Xa), PSE_NET_BLOCKING);
- NET_sendData(&Config.Sio, sizeof(Config.Sio), PSE_NET_BLOCKING);
- NET_sendData(&Config.SpuIrq, sizeof(Config.SpuIrq), PSE_NET_BLOCKING);
- NET_sendData(&Config.RCntFix, sizeof(Config.RCntFix), PSE_NET_BLOCKING);
- NET_sendData(&Config.PsxType, sizeof(Config.PsxType), PSE_NET_BLOCKING);
- NET_sendData(&Config.Cpu, sizeof(Config.Cpu), PSE_NET_BLOCKING);
-
- return 0;
-}
-
-int RecvPcsxInfo() {
- int tmp;
-
- if (NET_recvData == NULL || NET_sendData == NULL)
- return 0;
-
- NET_recvData(&Config.Xa, sizeof(Config.Xa), PSE_NET_BLOCKING);
- NET_recvData(&Config.Sio, sizeof(Config.Sio), PSE_NET_BLOCKING);
- NET_recvData(&Config.SpuIrq, sizeof(Config.SpuIrq), PSE_NET_BLOCKING);
- NET_recvData(&Config.RCntFix, sizeof(Config.RCntFix), PSE_NET_BLOCKING);
- NET_recvData(&Config.PsxType, sizeof(Config.PsxType), PSE_NET_BLOCKING);
-
- SysUpdate();
-
- tmp = Config.Cpu;
- NET_recvData(&Config.Cpu, sizeof(Config.Cpu), PSE_NET_BLOCKING);
- if (tmp != Config.Cpu) {
- psxCpu->Shutdown();
-#ifdef PSXREC
- if (Config.Cpu == CPU_INTERPRETER) psxCpu = &psxInt;
- else psxCpu = &psxRec;
-#else
- psxCpu = &psxInt;
-#endif
- if (psxCpu->Init() == -1) {
- SysClose(); return -1;
- }
- psxCpu->Reset();
- }
-
- return 0;
-}
-
-// remove the leading and trailing spaces in a string
-void trim(char *str) {
- int pos = 0;
- char *dest = str;
-
- // skip leading blanks
- while (str[pos] <= ' ' && str[pos] > 0)
- pos++;
-
- while (str[pos]) {
- *(dest++) = str[pos];
- pos++;
- }
-
- *(dest--) = '\0'; // store the null
-
- // remove trailing blanks
- while (dest >= str && *dest <= ' ' && *dest > 0)
- *(dest--) = '\0';
-}
-
-// lookup table for crc calculation
-static unsigned short crctab[256] = {
- 0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50A5, 0x60C6, 0x70E7, 0x8108,
- 0x9129, 0xA14A, 0xB16B, 0xC18C, 0xD1AD, 0xE1CE, 0xF1EF, 0x1231, 0x0210,
- 0x3273, 0x2252, 0x52B5, 0x4294, 0x72F7, 0x62D6, 0x9339, 0x8318, 0xB37B,
- 0xA35A, 0xD3BD, 0xC39C, 0xF3FF, 0xE3DE, 0x2462, 0x3443, 0x0420, 0x1401,
- 0x64E6, 0x74C7, 0x44A4, 0x5485, 0xA56A, 0xB54B, 0x8528, 0x9509, 0xE5EE,
- 0xF5CF, 0xC5AC, 0xD58D, 0x3653, 0x2672, 0x1611, 0x0630, 0x76D7, 0x66F6,
- 0x5695, 0x46B4, 0xB75B, 0xA77A, 0x9719, 0x8738, 0xF7DF, 0xE7FE, 0xD79D,
- 0xC7BC, 0x48C4, 0x58E5, 0x6886, 0x78A7, 0x0840, 0x1861, 0x2802, 0x3823,
- 0xC9CC, 0xD9ED, 0xE98E, 0xF9AF, 0x8948, 0x9969, 0xA90A, 0xB92B, 0x5AF5,
- 0x4AD4, 0x7AB7, 0x6A96, 0x1A71, 0x0A50, 0x3A33, 0x2A12, 0xDBFD, 0xCBDC,
- 0xFBBF, 0xEB9E, 0x9B79, 0x8B58, 0xBB3B, 0xAB1A, 0x6CA6, 0x7C87, 0x4CE4,
- 0x5CC5, 0x2C22, 0x3C03, 0x0C60, 0x1C41, 0xEDAE, 0xFD8F, 0xCDEC, 0xDDCD,
- 0xAD2A, 0xBD0B, 0x8D68, 0x9D49, 0x7E97, 0x6EB6, 0x5ED5, 0x4EF4, 0x3E13,
- 0x2E32, 0x1E51, 0x0E70, 0xFF9F, 0xEFBE, 0xDFDD, 0xCFFC, 0xBF1B, 0xAF3A,
- 0x9F59, 0x8F78, 0x9188, 0x81A9, 0xB1CA, 0xA1EB, 0xD10C, 0xC12D, 0xF14E,
- 0xE16F, 0x1080, 0x00A1, 0x30C2, 0x20E3, 0x5004, 0x4025, 0x7046, 0x6067,
- 0x83B9, 0x9398, 0xA3FB, 0xB3DA, 0xC33D, 0xD31C, 0xE37F, 0xF35E, 0x02B1,
- 0x1290, 0x22F3, 0x32D2, 0x4235, 0x5214, 0x6277, 0x7256, 0xB5EA, 0xA5CB,
- 0x95A8, 0x8589, 0xF56E, 0xE54F, 0xD52C, 0xC50D, 0x34E2, 0x24C3, 0x14A0,
- 0x0481, 0x7466, 0x6447, 0x5424, 0x4405, 0xA7DB, 0xB7FA, 0x8799, 0x97B8,
- 0xE75F, 0xF77E, 0xC71D, 0xD73C, 0x26D3, 0x36F2, 0x0691, 0x16B0, 0x6657,
- 0x7676, 0x4615, 0x5634, 0xD94C, 0xC96D, 0xF90E, 0xE92F, 0x99C8, 0x89E9,
- 0xB98A, 0xA9AB, 0x5844, 0x4865, 0x7806, 0x6827, 0x18C0, 0x08E1, 0x3882,
- 0x28A3, 0xCB7D, 0xDB5C, 0xEB3F, 0xFB1E, 0x8BF9, 0x9BD8, 0xABBB, 0xBB9A,
- 0x4A75, 0x5A54, 0x6A37, 0x7A16, 0x0AF1, 0x1AD0, 0x2AB3, 0x3A92, 0xFD2E,
- 0xED0F, 0xDD6C, 0xCD4D, 0xBDAA, 0xAD8B, 0x9DE8, 0x8DC9, 0x7C26, 0x6C07,
- 0x5C64, 0x4C45, 0x3CA2, 0x2C83, 0x1CE0, 0x0CC1, 0xEF1F, 0xFF3E, 0xCF5D,
- 0xDF7C, 0xAF9B, 0xBFBA, 0x8FD9, 0x9FF8, 0x6E17, 0x7E36, 0x4E55, 0x5E74,
- 0x2E93, 0x3EB2, 0x0ED1, 0x1EF0
-};
-
-u16 calcCrc(u8 *d, int len) {
- u16 crc = 0;
- int i;
-
- for (i = 0; i < len; i++) {
- crc = crctab[(crc >> 8) ^ d[i]] ^ (crc << 8);
- }
-
- return ~crc;
-}
+/***************************************************************************
+ * Copyright (C) 2007 Ryan Schultz, PCSX-df Team, 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., *
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
+ ***************************************************************************/
+
+/*
+* Miscellaneous functions, including savestates and CD-ROM loading.
+*/
+
+#include "misc.h"
+#include "cdrom.h"
+#include "mdec.h"
+#include "ppf.h"
+
+char CdromId[10] = "";
+char CdromLabel[33] = "";
+
+// PSX Executable types
+#define PSX_EXE 1
+#define CPE_EXE 2
+#define COFF_EXE 3
+#define INVALID_EXE 4
+
+#define ISODCL(from, to) (to - from + 1)
+
+struct iso_directory_record {
+ char length [ISODCL (1, 1)]; /* 711 */
+ char ext_attr_length [ISODCL (2, 2)]; /* 711 */
+ char extent [ISODCL (3, 10)]; /* 733 */
+ char size [ISODCL (11, 18)]; /* 733 */
+ char date [ISODCL (19, 25)]; /* 7 by 711 */
+ char flags [ISODCL (26, 26)];
+ char file_unit_size [ISODCL (27, 27)]; /* 711 */
+ char interleave [ISODCL (28, 28)]; /* 711 */
+ char volume_sequence_number [ISODCL (29, 32)]; /* 723 */
+ unsigned char name_len [ISODCL (33, 33)]; /* 711 */
+ char name [1];
+};
+
+void mmssdd( char *b, char *p )
+{
+ int m, s, d;
+#if defined(__BIGENDIAN__)
+ int block = (b[0] & 0xff) | ((b[1] & 0xff) << 8) | ((b[2] & 0xff) << 16) | (b[3] << 24);
+#else
+ int block = *((int*)b);
+#endif
+
+ block += 150;
+ m = block / 4500; // minutes
+ block = block - m * 4500; // minutes rest
+ s = block / 75; // seconds
+ d = block - s * 75; // seconds rest
+
+ m = ((m / 10) << 4) | m % 10;
+ s = ((s / 10) << 4) | s % 10;
+ d = ((d / 10) << 4) | d % 10;
+
+ p[0] = m;
+ p[1] = s;
+ p[2] = d;
+}
+
+#define incTime() \
+ time[0] = btoi(time[0]); time[1] = btoi(time[1]); time[2] = btoi(time[2]); \
+ time[2]++; \
+ if(time[2] == 75) { \
+ time[2] = 0; \
+ time[1]++; \
+ if (time[1] == 60) { \
+ time[1] = 0; \
+ time[0]++; \
+ } \
+ } \
+ time[0] = itob(time[0]); time[1] = itob(time[1]); time[2] = itob(time[2]);
+
+#define READTRACK() \
+ if (CDR_readTrack(time) == -1) return -1; \
+ buf = CDR_getBuffer(); \
+ if (buf == NULL) return -1; else CheckPPFCache(buf, time[0], time[1], time[2]);
+
+#define READDIR(_dir) \
+ READTRACK(); \
+ memcpy(_dir, buf + 12, 2048); \
+ \
+ incTime(); \
+ READTRACK(); \
+ memcpy(_dir + 2048, buf + 12, 2048);
+
+int GetCdromFile(u8 *mdir, u8 *time, s8 *filename) {
+ struct iso_directory_record *dir;
+ char ddir[4096];
+ u8 *buf;
+ int i;
+
+ // only try to scan if a filename is given
+ if (!strlen(filename)) return -1;
+
+ i = 0;
+ while (i < 4096) {
+ dir = (struct iso_directory_record*) &mdir[i];
+ if (dir->length[0] == 0) {
+ return -1;
+ }
+ i += dir->length[0];
+
+ if (dir->flags[0] & 0x2) { // it's a dir
+ if (!strnicmp((char *)&dir->name[0], filename, dir->name_len[0])) {
+ if (filename[dir->name_len[0]] != '\\') continue;
+
+ filename += dir->name_len[0] + 1;
+
+ mmssdd(dir->extent, (char *)time);
+ READDIR(ddir);
+ i = 0;
+ mdir = ddir;
+ }
+ } else {
+ if (!strnicmp((char *)&dir->name[0], filename, strlen(filename))) {
+ mmssdd(dir->extent, (char *)time);
+ break;
+ }
+ }
+ }
+ return 0;
+}
+
+int LoadCdrom() {
+ EXE_HEADER tmpHead;
+ struct iso_directory_record *dir;
+ u8 time[4], *buf;
+ u8 mdir[4096];
+ s8 exename[256];
+
+ if (!Config.HLE) {
+ if (!Config.SlowBoot) psxRegs.pc = psxRegs.GPR.n.ra;
+ return 0;
+ }
+
+ time[0] = itob(0); time[1] = itob(2); time[2] = itob(0x10);
+
+ READTRACK();
+
+ // skip head and sub, and go to the root directory record
+ dir = (struct iso_directory_record*) &buf[12+156];
+
+ mmssdd(dir->extent, (char*)time);
+
+ READDIR(mdir);
+
+ // Load SYSTEM.CNF and scan for the main executable
+ if (GetCdromFile(mdir, time, "SYSTEM.CNF;1") == -1) {
+ // if SYSTEM.CNF is missing, start an existing PSX.EXE
+ if (GetCdromFile(mdir, time, "PSX.EXE;1") == -1) return -1;
+
+ READTRACK();
+ }
+ else {
+ // read the SYSTEM.CNF
+ READTRACK();
+
+ sscanf((char *)buf + 12, "BOOT = cdrom:\\%256s", exename);
+ if (GetCdromFile(mdir, time, exename) == -1) {
+ sscanf((char *)buf + 12, "BOOT = cdrom:%256s", exename);
+ if (GetCdromFile(mdir, time, exename) == -1) {
+ char *ptr = strstr(buf + 12, "cdrom:");
+ if (ptr != NULL) {
+ ptr += 6;
+ while (*ptr == '\\' || *ptr == '/') ptr++;
+ strncpy(exename, ptr, 255);
+ exename[255] = '\0';
+ ptr = exename;
+ while (*ptr != '\0' && *ptr != '\r' && *ptr != '\n') ptr++;
+ *ptr = '\0';
+ if (GetCdromFile(mdir, time, exename) == -1)
+ return -1;
+ } else
+ return -1;
+ }
+ }
+
+ // Read the EXE-Header
+ READTRACK();
+ }
+
+ memcpy(&tmpHead, buf + 12, sizeof(EXE_HEADER));
+
+ psxRegs.pc = SWAP32(tmpHead.pc0);
+ psxRegs.GPR.n.gp = SWAP32(tmpHead.gp0);
+ psxRegs.GPR.n.sp = SWAP32(tmpHead.s_addr);
+ if (psxRegs.GPR.n.sp == 0) psxRegs.GPR.n.sp = 0x801fff00;
+
+ tmpHead.t_size = SWAP32(tmpHead.t_size);
+ tmpHead.t_addr = SWAP32(tmpHead.t_addr);
+
+ // Read the rest of the main executable
+ while (tmpHead.t_size) {
+ void *ptr = (void *)PSXM(tmpHead.t_addr);
+
+ incTime();
+ READTRACK();
+
+ if (ptr != NULL) memcpy(ptr, buf+12, 2048);
+
+ tmpHead.t_size -= 2048;
+ tmpHead.t_addr += 2048;
+ }
+
+ return 0;
+}
+
+int LoadCdromFile(const char *filename, EXE_HEADER *head) {
+ struct iso_directory_record *dir;
+ u8 time[4],*buf;
+ u8 mdir[4096], exename[256];
+ u32 size, addr;
+
+ sscanf(filename, "cdrom:\\%256s", exename);
+
+ time[0] = itob(0); time[1] = itob(2); time[2] = itob(0x10);
+
+ READTRACK();
+
+ // skip head and sub, and go to the root directory record
+ dir = (struct iso_directory_record *)&buf[12 + 156];
+
+ mmssdd(dir->extent, (char*)time);
+
+ READDIR(mdir);
+
+ if (GetCdromFile(mdir, time, exename) == -1) return -1;
+
+ READTRACK();
+
+ memcpy(head, buf + 12, sizeof(EXE_HEADER));
+ size = head->t_size;
+ addr = head->t_addr;
+
+ while (size) {
+ incTime();
+ READTRACK();
+
+ memcpy((void *)PSXM(addr), buf + 12, 2048);
+
+ size -= 2048;
+ addr += 2048;
+ }
+
+ return 0;
+}
+
+int CheckCdrom() {
+ struct iso_directory_record *dir;
+ unsigned char time[4], *buf;
+ unsigned char mdir[4096];
+ char exename[256];
+ int i, c;
+
+ FreePPFCache();
+
+ time[0] = itob(0);
+ time[1] = itob(2);
+ time[2] = itob(0x10);
+
+ READTRACK();
+
+ CdromLabel[0] = '\0';
+ CdromId[0] = '\0';
+
+ strncpy(CdromLabel, buf + 52, 32);
+
+ // skip head and sub, and go to the root directory record
+ dir = (struct iso_directory_record *)&buf[12 + 156];
+
+ mmssdd(dir->extent, (char *)time);
+
+ READDIR(mdir);
+
+ if (GetCdromFile(mdir, time, "SYSTEM.CNF;1") != -1) {
+ READTRACK();
+
+ sscanf((char *)buf + 12, "BOOT = cdrom:\\%256s", exename);
+ if (GetCdromFile(mdir, time, exename) == -1) {
+ sscanf((char *)buf + 12, "BOOT = cdrom:%256s", exename);
+ if (GetCdromFile(mdir, time, exename) == -1) {
+ char *ptr = strstr(buf + 12, "cdrom:"); // possibly the executable is in some subdir
+ if (ptr != NULL) {
+ ptr += 6;
+ while (*ptr == '\\' || *ptr == '/') ptr++;
+ strncpy(exename, ptr, 255);
+ exename[255] = '\0';
+ ptr = exename;
+ while (*ptr != '\0' && *ptr != '\r' && *ptr != '\n') ptr++;
+ *ptr = '\0';
+ if (GetCdromFile(mdir, time, exename) == -1)
+ return -1; // main executable not found
+ } else
+ return -1;
+ }
+ }
+ } else if (GetCdromFile(mdir, time, "PSX.EXE;1") != -1) {
+ strcpy(exename, "PSX.EXE;1");
+ strcpy(CdromId, "SLUS99999");
+ } else
+ return -1; // SYSTEM.CNF and PSX.EXE not found
+
+ if (CdromId[0] == '\0') {
+ i = strlen(exename);
+ if (i >= 2) {
+ if (exename[i - 2] == ';') i-= 2;
+ c = 8; i--;
+ while (i >= 0 && c >= 0) {
+ if (isalnum(exename[i])) CdromId[c--] = exename[i];
+ i--;
+ }
+ }
+ }
+
+ if (Config.PsxAuto) { // autodetect system (pal or ntsc)
+ if((CdromId[2] == 'e') || (CdromId[2] == 'E') ||
+ !strncmp(CdromId, "\0DTLS3035", 10) ||
+ !strncmp(CdromId, "PBPX95001", 10) || // according to redump.org, these PAL
+ !strncmp(CdromId, "PBPX95007", 10) || // discs have a non-standard ID;
+ !strncmp(CdromId, "PBPX95008", 10)) // add more serials if they are discovered.
+ Config.PsxType = PSX_TYPE_PAL; // pal
+ else Config.PsxType = PSX_TYPE_NTSC; // ntsc
+ }
+
+ if (CdromLabel[0] == ' ') {
+ strncpy(CdromLabel, CdromId, 9);
+ }
+ SysPrintf(_("CD-ROM Label: %.32s\n"), CdromLabel);
+ SysPrintf(_("CD-ROM ID: %.9s\n"), CdromId);
+
+ BuildPPFCache();
+ LoadSBI();
+
+ return 0;
+}
+
+static int PSXGetFileType(FILE *f) {
+ unsigned long current;
+ u8 mybuf[2048];
+ EXE_HEADER *exe_hdr;
+ FILHDR *coff_hdr;
+
+ current = ftell(f);
+ fseek(f, 0L, SEEK_SET);
+ fread(mybuf, 2048, 1, f);
+ fseek(f, current, SEEK_SET);
+
+ exe_hdr = (EXE_HEADER *)mybuf;
+ if (memcmp(exe_hdr->id, "PS-X EXE", 8) == 0)
+ return PSX_EXE;
+
+ if (mybuf[0] == 'C' && mybuf[1] == 'P' && mybuf[2] == 'E')
+ return CPE_EXE;
+
+ coff_hdr = (FILHDR *)mybuf;
+ if (SWAPu16(coff_hdr->f_magic) == 0x0162)
+ return COFF_EXE;
+
+ return INVALID_EXE;
+}
+
+static void LoadLibPS() {
+ char buf[MAXPATHLEN];
+ FILE *f;
+
+ // Load Net Yaroze runtime library (if exists)
+ sprintf(buf, "%s/libps.exe", Config.BiosDir);
+ f = fopen(buf, "rb");
+
+ if (f != NULL) {
+ fseek(f, 0x800, SEEK_SET);
+ fread(psxM + 0x10000, 0x61000, 1, f);
+ fclose(f);
+ }
+}
+
+int Load(const char *ExePath) {
+ FILE *tmpFile;
+ EXE_HEADER tmpHead;
+ FILHDR coffHead;
+ AOUTHDR optHead;
+ SCNHDR section;
+ int type, i;
+ int retval = 0;
+ u8 opcode;
+ u32 section_address, section_size;
+
+ strncpy(CdromId, "SLUS99999", 9);
+ strncpy(CdromLabel, "SLUS_999.99", 11);
+
+ tmpFile = fopen(ExePath, "rb");
+ if (tmpFile == NULL) {
+ SysPrintf(_("Error opening file: %s.\n"), ExePath);
+ retval = -1;
+ } else {
+ LoadLibPS();
+
+ type = PSXGetFileType(tmpFile);
+ switch (type) {
+ case PSX_EXE:
+ fread(&tmpHead, sizeof(EXE_HEADER), 1, tmpFile);
+ fseek(tmpFile, 0x800, SEEK_SET);
+ fread(PSXM(SWAP32(tmpHead.t_addr)), SWAP32(tmpHead.t_size), 1, tmpFile);
+ fclose(tmpFile);
+ psxRegs.pc = SWAP32(tmpHead.pc0);
+ psxRegs.GPR.n.gp = SWAP32(tmpHead.gp0);
+ psxRegs.GPR.n.sp = SWAP32(tmpHead.s_addr);
+ if (psxRegs.GPR.n.sp == 0)
+ psxRegs.GPR.n.sp = 0x801fff00;
+ retval = 0;
+ break;
+
+ case CPE_EXE:
+ fseek(tmpFile, 6, SEEK_SET); /* Something tells me we should go to 4 and read the "08 00" here... */
+ do {
+ fread(&opcode, 1, 1, tmpFile);
+ switch (opcode) {
+ case 1: /* Section loading */
+ fread(&section_address, 4, 1, tmpFile);
+ fread(&section_size, 4, 1, tmpFile);
+ section_address = SWAPu32(section_address);
+ section_size = SWAPu32(section_size);
+#ifdef EMU_LOG
+ EMU_LOG("Loading %08X bytes from %08X to %08X\n", section_size, ftell(tmpFile), section_address);
+#endif
+ fread(PSXM(section_address), section_size, 1, tmpFile);
+ break;
+ case 3: /* register loading (PC only?) */
+ fseek(tmpFile, 2, SEEK_CUR); /* unknown field */
+ fread(&psxRegs.pc, 4, 1, tmpFile);
+ psxRegs.pc = SWAPu32(psxRegs.pc);
+ break;
+ case 0: /* End of file */
+ break;
+ default:
+ SysPrintf(_("Unknown CPE opcode %02x at position %08x.\n"), opcode, ftell(tmpFile) - 1);
+ retval = -1;
+ break;
+ }
+ } while (opcode != 0 && retval == 0);
+ break;
+
+ case COFF_EXE:
+ fread(&coffHead, sizeof(coffHead), 1, tmpFile);
+ fread(&optHead, sizeof(optHead), 1, tmpFile);
+
+ psxRegs.pc = SWAP32(optHead.entry);
+ psxRegs.GPR.n.sp = 0x801fff00;
+
+ for (i = 0; i < SWAP16(coffHead.f_nscns); i++) {
+ fseek(tmpFile, sizeof(FILHDR) + SWAP16(coffHead.f_opthdr) + sizeof(section) * i, SEEK_SET);
+ fread(&section, sizeof(section), 1, tmpFile);
+
+ if (section.s_scnptr != 0) {
+ fseek(tmpFile, SWAP32(section.s_scnptr), SEEK_SET);
+ fread(PSXM(SWAP32(section.s_paddr)), SWAP32(section.s_size), 1, tmpFile);
+ } else {
+ memset(PSXM(SWAP32(section.s_paddr)), 0, SWAP32(section.s_size));
+ }
+ }
+ break;
+
+ case INVALID_EXE:
+ SysPrintf(_("This file does not appear to be a valid PSX file.\n"));
+ retval = -1;
+ break;
+ }
+ }
+
+ if (retval != 0) {
+ CdromId[0] = '\0';
+ CdromLabel[0] = '\0';
+ }
+
+ return retval;
+}
+
+// STATES
+
+static const char PcsxrHeader[32] = "STv4 PCSXR v" PACKAGE_VERSION;
+
+// Savestate Versioning!
+// If you make changes to the savestate version, please increment the value below.
+static const u32 SaveVersion = 0x8b410007;
+
+int SaveState(const char *file) {
+ gzFile f;
+ GPUFreeze_t *gpufP;
+ SPUFreeze_t *spufP;
+ int Size;
+ unsigned char *pMem;
+
+ f = gzopen(file, "wb");
+ if (f == NULL) return -1;
+
+ gzwrite(f, (void *)PcsxrHeader, 32);
+ gzwrite(f, (void *)&SaveVersion, sizeof(u32));
+ gzwrite(f, (void *)&Config.HLE, sizeof(boolean));
+
+ pMem = (unsigned char *)malloc(128 * 96 * 3);
+ if (pMem == NULL) return -1;
+ GPU_getScreenPic(pMem);
+ gzwrite(f, pMem, 128 * 96 * 3);
+ free(pMem);
+
+ if (Config.HLE)
+ psxBiosFreeze(1);
+
+ gzwrite(f, psxM, 0x00200000);
+ gzwrite(f, psxR, 0x00080000);
+ gzwrite(f, psxH, 0x00010000);
+ gzwrite(f, (void *)&psxRegs, sizeof(psxRegs));
+
+ // gpu
+ gpufP = (GPUFreeze_t *)malloc(sizeof(GPUFreeze_t));
+ gpufP->ulFreezeVersion = 1;
+ GPU_freeze(1, gpufP);
+ gzwrite(f, gpufP, sizeof(GPUFreeze_t));
+ free(gpufP);
+
+ // spu
+ spufP = (SPUFreeze_t *) malloc(16);
+ SPU_freeze(2, spufP);
+ Size = spufP->Size; gzwrite(f, &Size, 4);
+ free(spufP);
+ spufP = (SPUFreeze_t *) malloc(Size);
+ SPU_freeze(1, spufP);
+ gzwrite(f, spufP, Size);
+ free(spufP);
+
+ sioFreeze(f, 1);
+ cdrFreeze(f, 1);
+ psxHwFreeze(f, 1);
+ psxRcntFreeze(f, 1);
+ mdecFreeze(f, 1);
+
+ gzclose(f);
+
+ return 0;
+}
+
+int LoadState(const char *file) {
+ gzFile f;
+ GPUFreeze_t *gpufP;
+ SPUFreeze_t *spufP;
+ int Size;
+ char header[32];
+ u32 version;
+ boolean hle;
+
+ f = gzopen(file, "rb");
+ if (f == NULL) return -1;
+
+ gzread(f, header, sizeof(header));
+ gzread(f, &version, sizeof(u32));
+ gzread(f, &hle, sizeof(boolean));
+
+ if (strncmp("STv4 PCSXR", header, 10) != 0 || version != SaveVersion || hle != Config.HLE) {
+ gzclose(f);
+ return -1;
+ }
+
+ psxCpu->Reset();
+ gzseek(f, 128 * 96 * 3, SEEK_CUR);
+
+ gzread(f, psxM, 0x00200000);
+ gzread(f, psxR, 0x00080000);
+ gzread(f, psxH, 0x00010000);
+ gzread(f, (void *)&psxRegs, sizeof(psxRegs));
+
+ if (Config.HLE)
+ psxBiosFreeze(0);
+
+ // gpu
+ gpufP = (GPUFreeze_t *)malloc(sizeof(GPUFreeze_t));
+ gzread(f, gpufP, sizeof(GPUFreeze_t));
+ GPU_freeze(0, gpufP);
+ free(gpufP);
+
+ // spu
+ gzread(f, &Size, 4);
+ spufP = (SPUFreeze_t *)malloc(Size);
+ gzread(f, spufP, Size);
+ SPU_freeze(0, spufP);
+ free(spufP);
+
+ sioFreeze(f, 0);
+ cdrFreeze(f, 0);
+ psxHwFreeze(f, 0);
+ psxRcntFreeze(f, 0);
+ mdecFreeze(f, 0);
+
+ gzclose(f);
+
+ return 0;
+}
+
+int CheckState(const char *file) {
+ gzFile f;
+ char header[32];
+ u32 version;
+ boolean hle;
+
+ f = gzopen(file, "rb");
+ if (f == NULL) return -1;
+
+ gzread(f, header, sizeof(header));
+ gzread(f, &version, sizeof(u32));
+ gzread(f, &hle, sizeof(boolean));
+
+ gzclose(f);
+
+ if (strncmp("STv4 PCSXR", header, 10) != 0 || version != SaveVersion || hle != Config.HLE)
+ return -1;
+
+ return 0;
+}
+
+// NET Function Helpers
+
+int SendPcsxInfo() {
+ if (NET_recvData == NULL || NET_sendData == NULL)
+ return 0;
+
+ NET_sendData(&Config.Xa, sizeof(Config.Xa), PSE_NET_BLOCKING);
+ NET_sendData(&Config.Sio, sizeof(Config.Sio), PSE_NET_BLOCKING);
+ NET_sendData(&Config.SpuIrq, sizeof(Config.SpuIrq), PSE_NET_BLOCKING);
+ NET_sendData(&Config.RCntFix, sizeof(Config.RCntFix), PSE_NET_BLOCKING);
+ NET_sendData(&Config.PsxType, sizeof(Config.PsxType), PSE_NET_BLOCKING);
+ NET_sendData(&Config.Cpu, sizeof(Config.Cpu), PSE_NET_BLOCKING);
+
+ return 0;
+}
+
+int RecvPcsxInfo() {
+ int tmp;
+
+ if (NET_recvData == NULL || NET_sendData == NULL)
+ return 0;
+
+ NET_recvData(&Config.Xa, sizeof(Config.Xa), PSE_NET_BLOCKING);
+ NET_recvData(&Config.Sio, sizeof(Config.Sio), PSE_NET_BLOCKING);
+ NET_recvData(&Config.SpuIrq, sizeof(Config.SpuIrq), PSE_NET_BLOCKING);
+ NET_recvData(&Config.RCntFix, sizeof(Config.RCntFix), PSE_NET_BLOCKING);
+ NET_recvData(&Config.PsxType, sizeof(Config.PsxType), PSE_NET_BLOCKING);
+
+ SysUpdate();
+
+ tmp = Config.Cpu;
+ NET_recvData(&Config.Cpu, sizeof(Config.Cpu), PSE_NET_BLOCKING);
+ if (tmp != Config.Cpu) {
+ psxCpu->Shutdown();
+#ifdef PSXREC
+ if (Config.Cpu == CPU_INTERPRETER) psxCpu = &psxInt;
+ else psxCpu = &psxRec;
+#else
+ psxCpu = &psxInt;
+#endif
+ if (psxCpu->Init() == -1) {
+ SysClose(); return -1;
+ }
+ psxCpu->Reset();
+ }
+
+ return 0;
+}
+
+// remove the leading and trailing spaces in a string
+void trim(char *str) {
+ int pos = 0;
+ char *dest = str;
+
+ // skip leading blanks
+ while (str[pos] <= ' ' && str[pos] > 0)
+ pos++;
+
+ while (str[pos]) {
+ *(dest++) = str[pos];
+ pos++;
+ }
+
+ *(dest--) = '\0'; // store the null
+
+ // remove trailing blanks
+ while (dest >= str && *dest <= ' ' && *dest > 0)
+ *(dest--) = '\0';
+}
+
+// lookup table for crc calculation
+static unsigned short crctab[256] = {
+ 0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50A5, 0x60C6, 0x70E7, 0x8108,
+ 0x9129, 0xA14A, 0xB16B, 0xC18C, 0xD1AD, 0xE1CE, 0xF1EF, 0x1231, 0x0210,
+ 0x3273, 0x2252, 0x52B5, 0x4294, 0x72F7, 0x62D6, 0x9339, 0x8318, 0xB37B,
+ 0xA35A, 0xD3BD, 0xC39C, 0xF3FF, 0xE3DE, 0x2462, 0x3443, 0x0420, 0x1401,
+ 0x64E6, 0x74C7, 0x44A4, 0x5485, 0xA56A, 0xB54B, 0x8528, 0x9509, 0xE5EE,
+ 0xF5CF, 0xC5AC, 0xD58D, 0x3653, 0x2672, 0x1611, 0x0630, 0x76D7, 0x66F6,
+ 0x5695, 0x46B4, 0xB75B, 0xA77A, 0x9719, 0x8738, 0xF7DF, 0xE7FE, 0xD79D,
+ 0xC7BC, 0x48C4, 0x58E5, 0x6886, 0x78A7, 0x0840, 0x1861, 0x2802, 0x3823,
+ 0xC9CC, 0xD9ED, 0xE98E, 0xF9AF, 0x8948, 0x9969, 0xA90A, 0xB92B, 0x5AF5,
+ 0x4AD4, 0x7AB7, 0x6A96, 0x1A71, 0x0A50, 0x3A33, 0x2A12, 0xDBFD, 0xCBDC,
+ 0xFBBF, 0xEB9E, 0x9B79, 0x8B58, 0xBB3B, 0xAB1A, 0x6CA6, 0x7C87, 0x4CE4,
+ 0x5CC5, 0x2C22, 0x3C03, 0x0C60, 0x1C41, 0xEDAE, 0xFD8F, 0xCDEC, 0xDDCD,
+ 0xAD2A, 0xBD0B, 0x8D68, 0x9D49, 0x7E97, 0x6EB6, 0x5ED5, 0x4EF4, 0x3E13,
+ 0x2E32, 0x1E51, 0x0E70, 0xFF9F, 0xEFBE, 0xDFDD, 0xCFFC, 0xBF1B, 0xAF3A,
+ 0x9F59, 0x8F78, 0x9188, 0x81A9, 0xB1CA, 0xA1EB, 0xD10C, 0xC12D, 0xF14E,
+ 0xE16F, 0x1080, 0x00A1, 0x30C2, 0x20E3, 0x5004, 0x4025, 0x7046, 0x6067,
+ 0x83B9, 0x9398, 0xA3FB, 0xB3DA, 0xC33D, 0xD31C, 0xE37F, 0xF35E, 0x02B1,
+ 0x1290, 0x22F3, 0x32D2, 0x4235, 0x5214, 0x6277, 0x7256, 0xB5EA, 0xA5CB,
+ 0x95A8, 0x8589, 0xF56E, 0xE54F, 0xD52C, 0xC50D, 0x34E2, 0x24C3, 0x14A0,
+ 0x0481, 0x7466, 0x6447, 0x5424, 0x4405, 0xA7DB, 0xB7FA, 0x8799, 0x97B8,
+ 0xE75F, 0xF77E, 0xC71D, 0xD73C, 0x26D3, 0x36F2, 0x0691, 0x16B0, 0x6657,
+ 0x7676, 0x4615, 0x5634, 0xD94C, 0xC96D, 0xF90E, 0xE92F, 0x99C8, 0x89E9,
+ 0xB98A, 0xA9AB, 0x5844, 0x4865, 0x7806, 0x6827, 0x18C0, 0x08E1, 0x3882,
+ 0x28A3, 0xCB7D, 0xDB5C, 0xEB3F, 0xFB1E, 0x8BF9, 0x9BD8, 0xABBB, 0xBB9A,
+ 0x4A75, 0x5A54, 0x6A37, 0x7A16, 0x0AF1, 0x1AD0, 0x2AB3, 0x3A92, 0xFD2E,
+ 0xED0F, 0xDD6C, 0xCD4D, 0xBDAA, 0xAD8B, 0x9DE8, 0x8DC9, 0x7C26, 0x6C07,
+ 0x5C64, 0x4C45, 0x3CA2, 0x2C83, 0x1CE0, 0x0CC1, 0xEF1F, 0xFF3E, 0xCF5D,
+ 0xDF7C, 0xAF9B, 0xBFBA, 0x8FD9, 0x9FF8, 0x6E17, 0x7E36, 0x4E55, 0x5E74,
+ 0x2E93, 0x3EB2, 0x0ED1, 0x1EF0
+};
+
+u16 calcCrc(u8 *d, int len) {
+ u16 crc = 0;
+ int i;
+
+ for (i = 0; i < len; i++) {
+ crc = crctab[(crc >> 8) ^ d[i]] ^ (crc << 8);
+ }
+
+ return ~crc;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2026-08-21 08:22:00 +0000