// This is part of Pico Library\r
\r
// (c) Copyright 2004 Dave, All rights reserved.\r
-// (c) Copyright 2006 notaz, All rights reserved.\r
+// (c) Copyright 2006-2007, Grazvydas "notaz" Ignotas\r
// Free for non-commercial use.\r
\r
// For commercial use, separate licencing terms must be obtained.\r
\r
static char *rom_exts[] = { "bin", "gen", "smd", "iso" };\r
\r
+void (*PicoCartUnloadHook)(void) = NULL;\r
+\r
+void (*PicoCartLoadProgressCB)(int percent) = NULL;\r
+void (*PicoCDLoadProgressCB)(int percent) = NULL; // handled in Pico/cd/cd_file.c\r
+\r
+static void PicoCartDetect(void);\r
+\r
+/* cso struct */\r
+typedef struct _cso_struct\r
+{\r
+ unsigned char in_buff[2*2048];\r
+ unsigned char out_buff[2048];\r
+ struct {\r
+ char magic[4];\r
+ unsigned int unused;\r
+ unsigned int total_bytes;\r
+ unsigned int total_bytes_high; // ignored here\r
+ unsigned int block_size; // 10h\r
+ unsigned char ver;\r
+ unsigned char align;\r
+ unsigned char reserved[2];\r
+ } header;\r
+ unsigned int fpos_in; // input file read pointer\r
+ unsigned int fpos_out; // pos in virtual decompressed file\r
+ int block_in_buff; // block which we have read in in_buff\r
+ int pad;\r
+ int index[0];\r
+}\r
+cso_struct;\r
+\r
+static int uncompress2(void *dest, int destLen, void *source, int sourceLen)\r
+{\r
+ z_stream stream;\r
+ int err;\r
+\r
+ stream.next_in = (Bytef*)source;\r
+ stream.avail_in = (uInt)sourceLen;\r
+ stream.next_out = dest;\r
+ stream.avail_out = (uInt)destLen;\r
+\r
+ stream.zalloc = NULL;\r
+ stream.zfree = NULL;\r
+\r
+ err = inflateInit2(&stream, -15);\r
+ if (err != Z_OK) return err;\r
+\r
+ err = inflate(&stream, Z_FINISH);\r
+ if (err != Z_STREAM_END) {\r
+ inflateEnd(&stream);\r
+ return err;\r
+ }\r
+ //*destLen = stream.total_out;\r
+\r
+ return inflateEnd(&stream);\r
+}\r
\r
pm_file *pm_open(const char *path)\r
{\r
\r
ext = zipentry->name+strlen(zipentry->name)-3;\r
for (i = 0; i < sizeof(rom_exts)/sizeof(rom_exts[0]); i++)\r
- if (!strcasecmp(ext, rom_exts[i]) == 0) goto found_rom_zip;\r
+ if (strcasecmp(ext, rom_exts[i]) == 0) goto found_rom_zip;\r
}\r
\r
/* zipfile given, but nothing found suitable for us inside */\r
return NULL;\r
}\r
}\r
+ else if (ext && strcasecmp(ext, "cso") == 0)\r
+ {\r
+ cso_struct *cso = NULL, *tmp = NULL;\r
+ int size;\r
+ f = fopen(path, "rb");\r
+ if (f == NULL)\r
+ goto cso_failed;\r
+\r
+ /* we use our own buffering */\r
+ setvbuf(f, NULL, _IONBF, 0);\r
+\r
+ cso = malloc(sizeof(*cso));\r
+ if (cso == NULL)\r
+ goto cso_failed;\r
+\r
+ if (fread(&cso->header, 1, sizeof(cso->header), f) != sizeof(cso->header))\r
+ goto cso_failed;\r
+\r
+ if (strncmp(cso->header.magic, "CISO", 4) != 0) {\r
+ elprintf(EL_STATUS, "cso: bad header");\r
+ goto cso_failed;\r
+ }\r
+\r
+ if (cso->header.block_size != 2048) {\r
+ elprintf(EL_STATUS, "cso: bad block size (%u)", cso->header.block_size);\r
+ goto cso_failed;\r
+ }\r
+\r
+ size = ((cso->header.total_bytes >> 11) + 1)*4 + sizeof(*cso);\r
+ tmp = realloc(cso, size);\r
+ if (tmp == NULL)\r
+ goto cso_failed;\r
+ cso = tmp;\r
+ elprintf(EL_STATUS, "allocated %i bytes for CSO struct", size);\r
+\r
+ size -= sizeof(*cso); // index size\r
+ if (fread(cso->index, 1, size, f) != size) {\r
+ elprintf(EL_STATUS, "cso: premature EOF");\r
+ goto cso_failed;\r
+ }\r
+\r
+ // all ok\r
+ cso->fpos_in = ftell(f);\r
+ cso->fpos_out = 0;\r
+ cso->block_in_buff = -1;\r
+ file = malloc(sizeof(*file));\r
+ if (file == NULL) goto cso_failed;\r
+ file->file = f;\r
+ file->param = cso;\r
+ file->size = cso->header.total_bytes;\r
+ file->type = PMT_CSO;\r
+ return file;\r
+\r
+cso_failed:\r
+ if (cso != NULL) free(cso);\r
+ if (f != NULL) fclose(f);\r
+ return NULL;\r
+ }\r
\r
/* not a zip, treat as uncompressed file */\r
f = fopen(path, "rb");\r
file->size = ftell(f);\r
file->type = PMT_UNCOMPRESSED;\r
fseek(f, 0, SEEK_SET);\r
+\r
return file;\r
}\r
\r
/* we must reset stream pointer or else next seek/read fails */\r
gzrewind(gf);\r
}\r
+ else if (stream->type == PMT_CSO)\r
+ {\r
+ cso_struct *cso = stream->param;\r
+ int read_pos, read_len, out_offs, rret;\r
+ int block = cso->fpos_out >> 11;\r
+ int index = cso->index[block];\r
+ int index_end = cso->index[block+1];\r
+ unsigned char *out = ptr, *tmp_dst;\r
+\r
+ ret = 0;\r
+ while (bytes != 0)\r
+ {\r
+ out_offs = cso->fpos_out&0x7ff;\r
+ if (out_offs == 0 && bytes >= 2048)\r
+ tmp_dst = out;\r
+ else tmp_dst = cso->out_buff;\r
+\r
+ read_pos = (index&0x7fffffff) << cso->header.align;\r
+\r
+ if (index < 0) {\r
+ if (read_pos != cso->fpos_in)\r
+ fseek(stream->file, read_pos, SEEK_SET);\r
+ rret = fread(tmp_dst, 1, 2048, stream->file);\r
+ cso->fpos_in = read_pos + rret;\r
+ if (rret != 2048) break;\r
+ } else {\r
+ read_len = (((index_end&0x7fffffff) << cso->header.align) - read_pos) & 0xfff;\r
+ if (block != cso->block_in_buff)\r
+ {\r
+ if (read_pos != cso->fpos_in)\r
+ fseek(stream->file, read_pos, SEEK_SET);\r
+ rret = fread(cso->in_buff, 1, read_len, stream->file);\r
+ cso->fpos_in = read_pos + rret;\r
+ if (rret != read_len) {\r
+ elprintf(EL_STATUS, "cso: read failed @ %08x", read_pos);\r
+ break;\r
+ }\r
+ cso->block_in_buff = block;\r
+ }\r
+ rret = uncompress2(tmp_dst, 2048, cso->in_buff, read_len);\r
+ if (rret != 0) {\r
+ elprintf(EL_STATUS, "cso: uncompress failed @ %08x with %i", read_pos, rret);\r
+ break;\r
+ }\r
+ }\r
+\r
+ rret = 2048;\r
+ if (out_offs != 0 || bytes < 2048) {\r
+ //elprintf(EL_STATUS, "cso: unaligned/nonfull @ %08x, offs=%i, len=%u", cso->fpos_out, out_offs, bytes);\r
+ if (bytes < rret) rret = bytes;\r
+ if (2048 - out_offs < rret) rret = 2048 - out_offs;\r
+ memcpy(out, tmp_dst + out_offs, rret);\r
+ }\r
+ ret += rret;\r
+ out += rret;\r
+ cso->fpos_out += rret;\r
+ bytes -= rret;\r
+ block++;\r
+ index = index_end;\r
+ index_end = cso->index[block+1];\r
+ }\r
+ }\r
else\r
ret = 0;\r
\r
}\r
return gzseek((gzFile) stream->param, offset, whence);\r
}\r
+ else if (stream->type == PMT_CSO)\r
+ {\r
+ cso_struct *cso = stream->param;\r
+ switch (whence)\r
+ {\r
+ case SEEK_CUR: cso->fpos_out += offset; break;\r
+ case SEEK_SET: cso->fpos_out = offset; break;\r
+ case SEEK_END: cso->fpos_out = cso->header.total_bytes - offset; break;\r
+ }\r
+ return cso->fpos_out;\r
+ }\r
else\r
return -1;\r
}\r
zipfile->fp = NULL; // gzclose() closed it\r
closezip(zipfile);\r
}\r
+ else if (fp->type == PMT_CSO)\r
+ {\r
+ free(fp->param);\r
+ fclose(fp->file);\r
+ }\r
else\r
ret = EOF;\r
\r
static unsigned char *cd_realloc(void *old, int filesize)\r
{\r
unsigned char *rom;\r
- dprintf("sizeof(mcd_state): %i", sizeof(mcd_state));\r
rom=realloc(old, sizeof(mcd_state));\r
if (rom) memset(rom+0x20000, 0, sizeof(mcd_state)-0x20000);\r
return rom;\r
int alloc_size;\r
unsigned char *rom;\r
\r
- if (PicoMCD & 1) return cd_realloc(NULL, filesize);\r
+ if (PicoAHW & PAHW_MCD) return cd_realloc(NULL, filesize);\r
\r
alloc_size=filesize+0x7ffff;\r
if((filesize&0x3fff)==0x200) alloc_size-=0x200;\r
alloc_size&=~0x7ffff; // use alloc size of multiples of 512K, so that memhandlers could be set up more efficiently\r
if((filesize&0x3fff)==0x200) alloc_size+=0x200;\r
else if(alloc_size-filesize < 4) alloc_size+=4; // padding for out-of-bound exec protection\r
- //dprintf("alloc_size: %x\n", alloc_size);\r
\r
// Allocate space for the rom plus padding\r
rom=(unsigned char *)malloc(alloc_size);\r
\r
int PicoCartLoad(pm_file *f,unsigned char **prom,unsigned int *psize)\r
{\r
- unsigned char *rom=NULL; int size;\r
+ unsigned char *rom=NULL; int size, bytes_read;\r
if (f==NULL) return 1;\r
\r
size=f->size;\r
// Allocate space for the rom plus padding\r
rom=PicoCartAlloc(size);\r
if (rom==NULL) {\r
- printf("out of memory (wanted %i)\n", size);\r
+ elprintf(EL_STATUS, "out of memory (wanted %i)", size);\r
return 1;\r
}\r
\r
- pm_read(rom,size,f); // Load up the rom\r
+ if (PicoCartLoadProgressCB != NULL)\r
+ {\r
+ // read ROM in blocks, just for fun\r
+ int ret;\r
+ unsigned char *p = rom;\r
+ bytes_read=0;\r
+ do\r
+ {\r
+ int todo = size - bytes_read;\r
+ if (todo > 256*1024) todo = 256*1024;\r
+ ret = pm_read(p,todo,f);\r
+ bytes_read += ret;\r
+ p += ret;\r
+ PicoCartLoadProgressCB(bytes_read * 100 / size);\r
+ }\r
+ while (ret > 0);\r
+ }\r
+ else\r
+ bytes_read = pm_read(rom,size,f); // Load up the rom\r
+ if (bytes_read <= 0) {\r
+ elprintf(EL_STATUS, "read failed");\r
+ free(rom);\r
+ return 1;\r
+ }\r
\r
// maybe we are loading MegaCD BIOS?\r
- if (!(PicoMCD&1) && size == 0x20000 && (!strncmp((char *)rom+0x124, "BOOT", 4) || !strncmp((char *)rom+0x128, "BOOT", 4))) {\r
- PicoMCD |= 1;\r
+ if (!(PicoAHW & PAHW_MCD) && size == 0x20000 && (!strncmp((char *)rom+0x124, "BOOT", 4) ||\r
+ !strncmp((char *)rom+0x128, "BOOT", 4))) {\r
+ PicoAHW |= PAHW_MCD;\r
rom = cd_realloc(rom, size);\r
}\r
\r
// Check for SMD:\r
- if ((size&0x3fff)==0x200) { DecodeSmd(rom,size); size-=0x200; } // Decode and byteswap SMD\r
+ if (size >= 0x4200 && (size&0x3fff)==0x200 &&\r
+ ((rom[0x2280] == 'S' && rom[0x280] == 'E') || (rom[0x280] == 'S' && rom[0x2281] == 'E'))) {\r
+ DecodeSmd(rom,size); size-=0x200; // Decode and byteswap SMD\r
+ }\r
else Byteswap(rom,size); // Just byteswap\r
\r
if (prom) *prom=rom;\r
return 0;\r
}\r
\r
-// Insert/remove a cartridge:\r
+// Insert a cartridge:\r
int PicoCartInsert(unsigned char *rom,unsigned int romsize)\r
{\r
// notaz: add a 68k "jump one op back" opcode to the end of ROM.\r
// This will hang the emu, but will prevent nasty crashes.\r
// note: 4 bytes are padded to every ROM\r
- if(rom != NULL)\r
+ if (rom != NULL)\r
*(unsigned long *)(rom+romsize) = 0xFFFE4EFA; // 4EFA FFFE byteswapped\r
\r
- SRam.resize=1;\r
Pico.rom=rom;\r
Pico.romsize=romsize;\r
\r
- return PicoReset(1);\r
+ if (SRam.data) {\r
+ free(SRam.data);\r
+ SRam.data = NULL;\r
+ }\r
+\r
+ if (PicoCartUnloadHook != NULL) {\r
+ PicoCartUnloadHook();\r
+ PicoCartUnloadHook = NULL;\r
+ }\r
+\r
+ PicoAHW &= PAHW_MCD;\r
+\r
+ PicoMemResetHooks();\r
+ PicoDmaHook = NULL;\r
+ PicoResetHook = NULL;\r
+ PicoLineHook = NULL;\r
+ PicoLoadStateHook = NULL;\r
+ carthw_chunks = NULL;\r
+\r
+ PicoMemReset();\r
+\r
+ if (!(PicoAHW & PAHW_MCD))\r
+ PicoCartDetect();\r
+\r
+ // setup correct memory map for loaded ROM\r
+ // call PicoMemReset again due to possible memmap change\r
+ switch (PicoAHW) {\r
+ default:\r
+ elprintf(EL_STATUS|EL_ANOMALY, "starting in unknown hw configuration: %x", PicoAHW);\r
+ case 0:\r
+ case PAHW_SVP: PicoMemSetup(); break;\r
+ case PAHW_MCD: PicoMemSetupCD(); break;\r
+ case PAHW_PICO: PicoMemSetupPico(); break;\r
+ }\r
+ PicoMemReset();\r
+\r
+ PicoPower();\r
+ return 0;\r
+}\r
+\r
+void PicoCartUnload(void)\r
+{\r
+ if (Pico.rom != NULL) {\r
+ SekFinishIdleDet();\r
+ free(Pico.rom);\r
+ Pico.rom=NULL;\r
+ }\r
}\r
\r
-int PicoUnloadCart(unsigned char* romdata)\r
+static int rom_strcmp(int rom_offset, const char *s1)\r
{\r
- free(romdata);\r
+ int i, len = strlen(s1);\r
+ const char *s_rom = (const char *)Pico.rom + rom_offset;\r
+ for (i = 0; i < len; i++)\r
+ if (s1[i] != s_rom[i^1])\r
+ return 1;\r
return 0;\r
}\r
\r
+static int name_cmp(const char *name)\r
+{\r
+ return rom_strcmp(0x150, name);\r
+}\r
+\r
+/*\r
+ * various cart-specific things, which can't be handled by generic code\r
+ * (maybe I should start using CRC for this stuff?)\r
+ */\r
+static void PicoCartDetect(void)\r
+{\r
+ int sram_size = 0, csum;\r
+ Pico.m.sram_reg = 0;\r
+\r
+ csum = PicoRead32(0x18c) & 0xffff;\r
+\r
+ if (Pico.rom[0x1B1] == 'R' && Pico.rom[0x1B0] == 'A')\r
+ {\r
+ if (Pico.rom[0x1B2] & 0x40)\r
+ {\r
+ // EEPROM\r
+ SRam.start = PicoRead32(0x1B4) & ~1; // zero address is used for clock by some games\r
+ SRam.end = PicoRead32(0x1B8);\r
+ sram_size = 0x2000;\r
+ Pico.m.sram_reg |= 4;\r
+ } else {\r
+ // normal SRAM\r
+ SRam.start = PicoRead32(0x1B4) & ~0xff;\r
+ SRam.end = PicoRead32(0x1B8) | 1;\r
+ sram_size = SRam.end - SRam.start + 1;\r
+ }\r
+ SRam.start &= ~0xff000000;\r
+ SRam.end &= ~0xff000000;\r
+ Pico.m.sram_reg |= 0x10; // SRAM was detected\r
+ }\r
+ if (sram_size <= 0)\r
+ {\r
+ // some games may have bad headers, like S&K and Sonic3\r
+ // note: majority games use 0x200000 as starting address, but there are some which\r
+ // use something else (0x300000 by HardBall '95). Luckily they have good headers.\r
+ SRam.start = 0x200000;\r
+ SRam.end = 0x203FFF;\r
+ sram_size = 0x004000;\r
+ }\r
+\r
+ // this game actually doesn't have SRAM, but some weird protection\r
+ if (rom_strcmp(0x120, "PUGGSY") == 0)\r
+ {\r
+ SRam.start = SRam.end = sram_size = 0;\r
+ }\r
+\r
+ if (sram_size)\r
+ {\r
+ SRam.data = (unsigned char *) calloc(sram_size, 1);\r
+ if (SRam.data == NULL) return;\r
+ }\r
+ SRam.changed = 0;\r
+\r
+ // set EEPROM defaults, in case it gets detected\r
+ SRam.eeprom_type = 0; // 7bit (24C01)\r
+ SRam.eeprom_abits = 3; // eeprom access must be odd addr for: bit0 ~ cl, bit1 ~ in\r
+ SRam.eeprom_bit_cl = 1;\r
+ SRam.eeprom_bit_in = 0;\r
+ SRam.eeprom_bit_out= 0;\r
+\r
+ // some known EEPROM data (thanks to EkeEke)\r
+ if (name_cmp("COLLEGE SLAM") == 0 ||\r
+ name_cmp("FRANK THOMAS BIGHURT BASEBAL") == 0)\r
+ {\r
+ SRam.eeprom_type = 3;\r
+ SRam.eeprom_abits = 2;\r
+ SRam.eeprom_bit_cl = 0;\r
+ }\r
+ else if (name_cmp("NBA JAM TOURNAMENT EDITION") == 0 ||\r
+ name_cmp("NFL QUARTERBACK CLUB") == 0)\r
+ {\r
+ SRam.eeprom_type = 2;\r
+ SRam.eeprom_abits = 2;\r
+ SRam.eeprom_bit_cl = 0;\r
+ }\r
+ else if (name_cmp("NBA JAM") == 0)\r
+ {\r
+ SRam.eeprom_type = 2;\r
+ SRam.eeprom_bit_out = 1;\r
+ SRam.eeprom_abits = 0;\r
+ }\r
+ else if (name_cmp("NHLPA HOCKEY '93") == 0 ||\r
+ name_cmp("NHLPA Hockey '93") == 0 ||\r
+ name_cmp("RINGS OF POWER") == 0)\r
+ {\r
+ SRam.start = SRam.end = 0x200000;\r
+ Pico.m.sram_reg = 0x14;\r
+ SRam.eeprom_abits = 0;\r
+ SRam.eeprom_bit_cl = 6;\r
+ SRam.eeprom_bit_in = 7;\r
+ SRam.eeprom_bit_out= 7;\r
+ }\r
+ else if ( name_cmp("MICRO MACHINES II") == 0 ||\r
+ (name_cmp(" ") == 0 && // Micro Machines {Turbo Tournament '96, Military - It's a Blast!}\r
+ (csum == 0x165e || csum == 0x168b || csum == 0xCEE0 || csum == 0x2C41)))\r
+ {\r
+ SRam.start = 0x300000;\r
+ SRam.end = 0x380001;\r
+ Pico.m.sram_reg = 0x14;\r
+ SRam.eeprom_type = 2;\r
+ SRam.eeprom_abits = 0;\r
+ SRam.eeprom_bit_cl = 1;\r
+ SRam.eeprom_bit_in = 0;\r
+ SRam.eeprom_bit_out= 7;\r
+ }\r
+\r
+ // SVP detection\r
+ else if (name_cmp("Virtua Racing") == 0 ||\r
+ name_cmp("VIRTUA RACING") == 0)\r
+ {\r
+ PicoSVPStartup();\r
+ }\r
+\r
+ // Pico\r
+ else if (rom_strcmp(0x100, "SEGA PICO") == 0 ||\r
+ rom_strcmp(0x100, "IMA IKUNOUJYUKU") == 0) // what is that supposed to mean?\r
+ {\r
+ PicoInitPico();\r
+ }\r
+\r
+ // Detect 12-in-1 mapper\r
+ else if ((name_cmp("ROBOCOP 3") == 0 && Pico.romsize == 0x200000) ||\r
+ (rom_strcmp(0x160, "FLICKY") == 0 && Pico.romsize >= 0x200000) ||\r
+ (name_cmp(" SHOVE IT!") == 0 && Pico.romsize >= 0x200000) ||\r
+ (name_cmp("MS PACMAN") == 0 && Pico.romsize >= 0x200000)) // bad dump?\r
+ {\r
+ carthw_12in1_startup();\r
+ }\r
+\r
+ // Realtec mapper\r
+ else if (Pico.romsize == 512*1024 && (\r
+ rom_strcmp(0x94, "THE EARTH DEFEND") == 0 ||\r
+ rom_strcmp(0xfe, "WISEGAME 11-03-1993") == 0 || // Funny World\r
+ rom_strcmp(0x95, "MALLET LEGEND ") == 0)) // Whac-A-Critter\r
+ {\r
+ carthw_realtec_startup();\r
+ }\r
+\r
+ // Radica mapper\r
+ else if (name_cmp("KID CHAMELEON") == 0 && Pico.romsize > 0x100000)\r
+ {\r
+ carthw_radica_startup();\r
+ }\r
+\r
+ // Some games malfunction if SRAM is not filled with 0xff\r
+ if (name_cmp("DINO DINI'S SOCCER") == 0 ||\r
+ name_cmp("MICRO MACHINES II") == 0)\r
+ {\r
+ memset(SRam.data, 0xff, sram_size);\r
+ }\r
+\r
+ // Unusual region 'code'\r
+ if (rom_strcmp(0x1f0, "EUROPE") == 0 || rom_strcmp(0x1f0, "Europe") == 0)\r
+ *(int *) (Pico.rom+0x1f0) = 0x20204520;\r
+}\r
+\r
notaz.gp2x.de / picodrive.git / blobdiff