-// This is part of Pico Library\r
-\r
-// (c) Copyright 2004 Dave, 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
+/*\r
+ * PicoDrive\r
+ * (c) Copyright Dave, 2004\r
+ * (C) notaz, 2006-2010\r
+ *\r
+ * This work is licensed under the terms of MAME license.\r
+ * See COPYING file in the top-level directory.\r
+ */\r
\r
#include "pico_int.h"\r
-#include "../zlib/zlib.h"\r
+#include "../cpu/debug.h"\r
#include "../unzip/unzip.h"\r
-#include "../unzip/unzip_stream.h"\r
+#include <zlib.h>\r
\r
\r
+static int rom_alloc_size;\r
static const char *rom_exts[] = { "bin", "gen", "smd", "iso", "sms", "gg", "sg" };\r
\r
-void (*PicoCartUnloadHook)(void) = NULL;\r
+void (*PicoCartUnloadHook)(void);\r
+void (*PicoCartMemSetup)(void);\r
\r
void (*PicoCartLoadProgressCB)(int percent) = NULL;\r
void (*PicoCDLoadProgressCB)(const char *fname, int percent) = NULL; // handled in Pico/cd/cd_file.c\r
\r
-static void PicoCartDetect(void);\r
+int PicoGameLoaded;\r
+\r
+static void PicoCartDetect(const char *carthw_cfg);\r
\r
/* cso struct */\r
typedef struct _cso_struct\r
}\r
cso_struct;\r
\r
-static int uncompress2(void *dest, int destLen, void *source, int sourceLen)\r
+static int uncompress_buf(void *dest, int destLen, void *source, int sourceLen)\r
{\r
z_stream stream;\r
int err;\r
return ext;\r
}\r
\r
+struct zip_file {\r
+ pm_file file;\r
+ ZIP *zip;\r
+ struct zipent *entry;\r
+ z_stream stream;\r
+ unsigned char inbuf[16384];\r
+ long start;\r
+ unsigned int pos;\r
+};\r
+\r
pm_file *pm_open(const char *path)\r
{\r
pm_file *file = NULL;\r
ext = get_ext(path);\r
if (strcasecmp(ext, "zip") == 0)\r
{\r
+ struct zip_file *zfile = NULL;\r
struct zipent *zipentry;\r
- gzFile gzf = NULL;\r
ZIP *zipfile;\r
- int i;\r
+ int i, ret;\r
\r
zipfile = openzip(path);\r
if (zipfile != NULL)\r
goto zip_failed;\r
\r
found_rom_zip:\r
- /* try to convert to gzip stream, so we could use standard gzio functions from zlib */\r
- gzf = zip2gz(zipfile, zipentry);\r
- if (gzf == NULL) goto zip_failed;\r
-\r
- file = calloc(1, sizeof(*file));\r
- if (file == NULL) goto zip_failed;\r
- file->file = zipfile;\r
- file->param = gzf;\r
- file->size = zipentry->uncompressed_size;\r
- file->type = PMT_ZIP;\r
- strncpy(file->ext, ext, sizeof(file->ext) - 1);\r
- return file;\r
+ zfile = calloc(1, sizeof(*zfile));\r
+ if (zfile == NULL)\r
+ goto zip_failed;\r
+ ret = seekcompresszip(zipfile, zipentry);\r
+ if (ret != 0)\r
+ goto zip_failed;\r
+ ret = inflateInit2(&zfile->stream, -15);\r
+ if (ret != Z_OK) {\r
+ elprintf(EL_STATUS, "zip: inflateInit2 %d", ret);\r
+ goto zip_failed;\r
+ }\r
+ zfile->zip = zipfile;\r
+ zfile->entry = zipentry;\r
+ zfile->start = ftell(zipfile->fp);\r
+ zfile->file.file = zfile;\r
+ zfile->file.size = zipentry->uncompressed_size;\r
+ zfile->file.type = PMT_ZIP;\r
+ strncpy(zfile->file.ext, ext, sizeof(zfile->file.ext) - 1);\r
+ return &zfile->file;\r
\r
zip_failed:\r
- if (gzf) {\r
- gzclose(gzf);\r
- zipfile->fp = NULL; // gzclose() closed it\r
- }\r
closezip(zipfile);\r
+ free(zfile);\r
return NULL;\r
}\r
}\r
if (f == NULL)\r
goto cso_failed;\r
\r
-#ifndef __EPOC32__\r
+#ifdef __GP2X__\r
/* we use our own buffering */\r
setvbuf(f, NULL, _IONBF, 0);\r
#endif\r
strncpy(file->ext, ext, sizeof(file->ext) - 1);\r
fseek(f, 0, SEEK_SET);\r
\r
-#ifndef __EPOC32__ // makes things worse on Symbian\r
+#ifdef __GP2X__\r
if (file->size > 0x400000)\r
/* we use our own buffering */\r
setvbuf(f, NULL, _IONBF, 0);\r
}\r
else if (stream->type == PMT_ZIP)\r
{\r
- gzFile gf = stream->param;\r
- int err;\r
- ret = gzread(gf, ptr, bytes);\r
- err = gzerror2(gf);\r
- if (ret > 0 && (err == Z_DATA_ERROR || err == Z_STREAM_END))\r
- /* we must reset stream pointer or else next seek/read fails */\r
- gzrewind(gf);\r
+ struct zip_file *z = stream->file;\r
+\r
+ if (z->entry->compression_method == 0) {\r
+ int ret = fread(ptr, 1, bytes, z->zip->fp);\r
+ z->pos += ret;\r
+ return ret;\r
+ }\r
+\r
+ z->stream.next_out = ptr;\r
+ z->stream.avail_out = bytes;\r
+ while (z->stream.avail_out != 0) {\r
+ if (z->stream.avail_in == 0) {\r
+ z->stream.avail_in = fread(z->inbuf, 1, sizeof(z->inbuf), z->zip->fp);\r
+ if (z->stream.avail_in == 0)\r
+ break;\r
+ z->stream.next_in = z->inbuf;\r
+ }\r
+ ret = inflate(&z->stream, Z_NO_FLUSH);\r
+ if (ret == Z_STREAM_END)\r
+ break;\r
+ if (ret != Z_OK) {\r
+ elprintf(EL_STATUS, "zip: inflate: %d", ret);\r
+ return 0;\r
+ }\r
+ }\r
+ z->pos += bytes - z->stream.avail_out;\r
+ return bytes - z->stream.avail_out;\r
}\r
else if (stream->type == PMT_CSO)\r
{\r
}\r
cso->block_in_buff = block;\r
}\r
- rret = uncompress2(tmp_dst, 2048, cso->in_buff, read_len);\r
+ rret = uncompress_buf(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
else if (stream->type == PMT_ZIP)\r
{\r
- if (PicoMessage != NULL && offset > 6*1024*1024) {\r
- long pos = gztell((gzFile) stream->param);\r
- if (offset < pos || offset - pos > 6*1024*1024)\r
- PicoMessage("Decompressing data...");\r
+ struct zip_file *z = stream->file;\r
+ unsigned int pos = z->pos;\r
+ int ret;\r
+\r
+ switch (whence)\r
+ {\r
+ case SEEK_CUR: pos += offset; break;\r
+ case SEEK_SET: pos = offset; break;\r
+ case SEEK_END: pos = stream->size - offset; break;\r
+ }\r
+ if (z->entry->compression_method == 0) {\r
+ ret = fseek(z->zip->fp, z->start + pos, SEEK_SET);\r
+ if (ret == 0)\r
+ return (z->pos = pos);\r
+ return -1;\r
+ }\r
+ offset = pos - z->pos;\r
+ if (pos < z->pos) {\r
+ // full decompress from the start\r
+ fseek(z->zip->fp, z->start, SEEK_SET);\r
+ z->stream.avail_in = 0;\r
+ z->stream.next_in = z->inbuf;\r
+ inflateReset(&z->stream);\r
+ z->pos = 0;\r
+ offset = pos;\r
+ }\r
+\r
+ if (PicoIn.osdMessage != NULL && offset > 4 * 1024 * 1024)\r
+ PicoIn.osdMessage("Decompressing data...");\r
+\r
+ while (offset > 0) {\r
+ char buf[16 * 1024];\r
+ size_t l = offset > sizeof(buf) ? sizeof(buf) : offset;\r
+ ret = pm_read(buf, l, stream);\r
+ if (ret != l)\r
+ break;\r
+ offset -= l;\r
}\r
- return gzseek((gzFile) stream->param, offset, whence);\r
+ return z->pos;\r
}\r
else if (stream->type == PMT_CSO)\r
{\r
}\r
else if (fp->type == PMT_ZIP)\r
{\r
- ZIP *zipfile = fp->file;\r
- gzclose((gzFile) fp->param);\r
- zipfile->fp = NULL; // gzclose() closed it\r
- closezip(zipfile);\r
+ struct zip_file *z = fp->file;\r
+ inflateEnd(&z->stream);\r
+ closezip(z->zip);\r
}\r
else if (fp->type == PMT_CSO)\r
{\r
return ret;\r
}\r
\r
-\r
-void Byteswap(unsigned char *data,int len)\r
+// byteswap, data needs to be int aligned, src can match dst\r
+void Byteswap(void *dst, const void *src, int len)\r
{\r
- int i=0;\r
+ const unsigned int *ps = src;\r
+ unsigned int *pd = dst;\r
+ int i, m;\r
\r
- if (len<2) return; // Too short\r
-\r
- do\r
- {\r
- unsigned short *pd=(unsigned short *)(data+i);\r
- int value=*pd; // Get 2 bytes\r
+ if (len < 2)\r
+ return;\r
\r
- value=(value<<8)|(value>>8); // Byteswap it\r
- *pd=(unsigned short)value; // Put 2b ytes\r
- i+=2;\r
+ m = 0x00ff00ff;\r
+ for (i = 0; i < len / 4; i++) {\r
+ unsigned int t = ps[i];\r
+ pd[i] = ((t & m) << 8) | ((t & ~m) >> 8);\r
}\r
- while (i+2<=len);\r
}\r
\r
// Interleve a 16k block and byteswap\r
return 0;\r
}\r
\r
-static unsigned char *cd_realloc(void *old, int filesize)\r
-{\r
- unsigned char *rom;\r
- rom=realloc(old, sizeof(mcd_state));\r
- if (rom) memset(rom+0x20000, 0, sizeof(mcd_state)-0x20000);\r
- return rom;\r
-}\r
-\r
static unsigned char *PicoCartAlloc(int filesize, int is_sms)\r
{\r
- int alloc_size;\r
unsigned char *rom;\r
\r
- if (PicoAHW & PAHW_MCD)\r
- return cd_realloc(NULL, filesize);\r
-\r
if (is_sms) {\r
// make size power of 2 for easier banking handling\r
int s = 0, tmp = filesize;\r
s++;\r
if (filesize > (1 << s))\r
s++;\r
- alloc_size = 1 << s;\r
+ rom_alloc_size = 1 << s;\r
+ // be sure we can cover all address space\r
+ if (rom_alloc_size < 0x10000)\r
+ rom_alloc_size = 0x10000;\r
}\r
else {\r
+ // make alloc size at least sizeof(mcd_state),\r
+ // in case we want to switch to CD mode\r
+ if (filesize < sizeof(mcd_state))\r
+ filesize = sizeof(mcd_state);\r
+\r
// align to 512K for memhandlers\r
- alloc_size = (filesize + 0x7ffff) & ~0x7ffff;\r
+ rom_alloc_size = (filesize + 0x7ffff) & ~0x7ffff;\r
}\r
\r
- if (alloc_size - filesize < 4)\r
- alloc_size += 4; // padding for out-of-bound exec protection\r
+ if (rom_alloc_size - filesize < 4)\r
+ rom_alloc_size += 4; // padding for out-of-bound exec protection\r
\r
// Allocate space for the rom plus padding\r
- rom = calloc(alloc_size, 1);\r
+ // use special address for 32x dynarec\r
+ rom = plat_mmap(0x02000000, rom_alloc_size, 0, 0);\r
return rom;\r
}\r
\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
+ plat_munmap(rom, rom_alloc_size);\r
return 3;\r
}\r
\r
if (!is_sms)\r
{\r
// maybe we are loading MegaCD BIOS?\r
- if (!(PicoAHW & PAHW_MCD) && size == 0x20000 && (!strncmp((char *)rom+0x124, "BOOT", 4) ||\r
+ if (!(PicoIn.AHW & 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
+ PicoIn.AHW |= PAHW_MCD;\r
}\r
\r
// Check for SMD:\r
elprintf(EL_STATUS, "SMD format detected.");\r
DecodeSmd(rom,size); size-=0x200; // Decode and byteswap SMD\r
}\r
- else Byteswap(rom,size); // Just byteswap\r
+ else Byteswap(rom, rom, size); // Just byteswap\r
}\r
else\r
{\r
}\r
\r
// Insert a cartridge:\r
-int PicoCartInsert(unsigned char *rom,unsigned int romsize)\r
+int PicoCartInsert(unsigned char *rom, unsigned int romsize, const char *carthw_cfg)\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
Pico.rom=rom;\r
Pico.romsize=romsize;\r
\r
- if (SRam.data) {\r
- free(SRam.data);\r
- SRam.data = NULL;\r
+ if (Pico.sv.data) {\r
+ free(Pico.sv.data);\r
+ Pico.sv.data = NULL;\r
}\r
\r
if (PicoCartUnloadHook != NULL) {\r
PicoCartUnloadHook();\r
PicoCartUnloadHook = NULL;\r
}\r
+ pdb_cleanup();\r
\r
- PicoAHW &= PAHW_MCD|PAHW_SMS;\r
+ PicoIn.AHW &= PAHW_MCD|PAHW_SMS;\r
\r
- PicoMemResetHooks();\r
+ PicoCartMemSetup = NULL;\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|PAHW_SMS)))\r
- PicoCartDetect();\r
+ if (!(PicoIn.AHW & (PAHW_MCD|PAHW_SMS)))\r
+ PicoCartDetect(carthw_cfg);\r
\r
// setup correct memory map for loaded ROM\r
- // call PicoMemReset again due to possible memmap change\r
- switch (PicoAHW) {\r
+ switch (PicoIn.AHW) {\r
default:\r
- elprintf(EL_STATUS|EL_ANOMALY, "starting in unknown hw configuration: %x", PicoAHW);\r
+ elprintf(EL_STATUS|EL_ANOMALY, "starting in unknown hw configuration: %x", PicoIn.AHW);\r
case 0:\r
case PAHW_SVP: PicoMemSetup(); break;\r
case PAHW_MCD: PicoMemSetupCD(); break;\r
case PAHW_PICO: PicoMemSetupPico(); break;\r
case PAHW_SMS: PicoMemSetupMS(); break;\r
}\r
- PicoMemReset();\r
\r
- if (PicoAHW & PAHW_SMS)\r
+ if (PicoCartMemSetup != NULL)\r
+ PicoCartMemSetup();\r
+\r
+ if (PicoIn.AHW & PAHW_SMS)\r
PicoPowerMS();\r
else\r
PicoPower();\r
\r
+ PicoGameLoaded = 1;\r
+ return 0;\r
+}\r
+\r
+int PicoCartResize(int newsize)\r
+{\r
+ void *tmp = plat_mremap(Pico.rom, rom_alloc_size, newsize);\r
+ if (tmp == NULL)\r
+ return -1;\r
+\r
+ Pico.rom = tmp;\r
+ rom_alloc_size = newsize;\r
return 0;\r
}\r
\r
PicoCartUnloadHook = NULL;\r
}\r
\r
+ if (PicoIn.AHW & PAHW_32X)\r
+ PicoUnload32x();\r
+\r
if (Pico.rom != NULL) {\r
SekFinishIdleDet();\r
- free(Pico.rom);\r
- Pico.rom=NULL;\r
+ plat_munmap(Pico.rom, rom_alloc_size);\r
+ Pico.rom = NULL;\r
}\r
+ PicoGameLoaded = 0;\r
+}\r
+\r
+static unsigned int rom_crc32(void)\r
+{\r
+ unsigned int crc;\r
+ elprintf(EL_STATUS, "caclulating CRC32..");\r
+\r
+ // have to unbyteswap for calculation..\r
+ Byteswap(Pico.rom, Pico.rom, Pico.romsize);\r
+ crc = crc32(0, Pico.rom, Pico.romsize);\r
+ Byteswap(Pico.rom, Pico.rom, Pico.romsize);\r
+ return crc;\r
}\r
\r
static int rom_strcmp(int rom_offset, const char *s1)\r
{\r
int i, len = strlen(s1);\r
- const char *s_rom = (const char *)Pico.rom + rom_offset;\r
+ const char *s_rom = (const char *)Pico.rom;\r
+ if (rom_offset + len > Pico.romsize)\r
+ return 0;\r
for (i = 0; i < len; i++)\r
- if (s1[i] != s_rom[i^1])\r
+ if (s1[i] != s_rom[(i + rom_offset) ^ 1])\r
return 1;\r
return 0;\r
}\r
\r
-static int name_cmp(const char *name)\r
+static unsigned int rom_read32(int addr)\r
+{\r
+ unsigned short *m = (unsigned short *)(Pico.rom + addr);\r
+ return (m[0] << 16) | m[1];\r
+}\r
+\r
+static char *sskip(char *s)\r
+{\r
+ while (*s && isspace_(*s))\r
+ s++;\r
+ return s;\r
+}\r
+\r
+static void rstrip(char *s)\r
+{\r
+ char *p;\r
+ for (p = s + strlen(s) - 1; p >= s; p--)\r
+ if (isspace_(*p))\r
+ *p = 0;\r
+}\r
+\r
+static int parse_3_vals(char *p, int *val0, int *val1, int *val2)\r
+{\r
+ char *r;\r
+ *val0 = strtoul(p, &r, 0);\r
+ if (r == p)\r
+ goto bad;\r
+ p = sskip(r);\r
+ if (*p++ != ',')\r
+ goto bad;\r
+ *val1 = strtoul(p, &r, 0);\r
+ if (r == p)\r
+ goto bad;\r
+ p = sskip(r);\r
+ if (*p++ != ',')\r
+ goto bad;\r
+ *val2 = strtoul(p, &r, 0);\r
+ if (r == p)\r
+ goto bad;\r
+\r
+ return 1;\r
+bad:\r
+ return 0;\r
+}\r
+\r
+static int is_expr(const char *expr, char **pr)\r
+{\r
+ int len = strlen(expr);\r
+ char *p = *pr;\r
+\r
+ if (strncmp(expr, p, len) != 0)\r
+ return 0;\r
+ p = sskip(p + len);\r
+ if (*p != '=')\r
+ return 0; // wrong or malformed\r
+\r
+ *pr = sskip(p + 1);\r
+ return 1;\r
+}\r
+\r
+#include "carthw_cfg.c"\r
+\r
+static void parse_carthw(const char *carthw_cfg, int *fill_sram,\r
+ int *hw_detected)\r
{\r
- return rom_strcmp(0x150, name);\r
+ int line = 0, any_checks_passed = 0, skip_sect = 0;\r
+ const char *s, *builtin = builtin_carthw_cfg;\r
+ int tmp, rom_crc = 0;\r
+ char buff[256], *p, *r;\r
+ FILE *f;\r
+\r
+ f = fopen(carthw_cfg, "r");\r
+ if (f == NULL)\r
+ f = fopen("pico/carthw.cfg", "r");\r
+ if (f == NULL)\r
+ elprintf(EL_STATUS, "couldn't open carthw.cfg!");\r
+\r
+ for (;;)\r
+ {\r
+ if (f != NULL) {\r
+ p = fgets(buff, sizeof(buff), f);\r
+ if (p == NULL)\r
+ break;\r
+ }\r
+ else {\r
+ if (*builtin == 0)\r
+ break;\r
+ for (s = builtin; *s != 0 && *s != '\n'; s++)\r
+ ;\r
+ while (*s == '\n')\r
+ s++;\r
+ tmp = s - builtin;\r
+ if (tmp > sizeof(buff) - 1)\r
+ tmp = sizeof(buff) - 1;\r
+ memcpy(buff, builtin, tmp);\r
+ buff[tmp] = 0;\r
+ p = buff;\r
+ builtin = s;\r
+ }\r
+\r
+ line++;\r
+ p = sskip(p);\r
+ if (*p == 0 || *p == '#')\r
+ continue;\r
+\r
+ if (*p == '[') {\r
+ any_checks_passed = 0;\r
+ skip_sect = 0;\r
+ continue;\r
+ }\r
+ \r
+ if (skip_sect)\r
+ continue;\r
+\r
+ /* look for checks */\r
+ if (is_expr("check_str", &p))\r
+ {\r
+ int offs;\r
+ offs = strtoul(p, &r, 0);\r
+ if (offs < 0 || offs > Pico.romsize) {\r
+ elprintf(EL_STATUS, "carthw:%d: check_str offs out of range: %d\n", line, offs);\r
+ goto bad;\r
+ }\r
+ p = sskip(r);\r
+ if (*p != ',')\r
+ goto bad;\r
+ p = sskip(p + 1);\r
+ if (*p != '"')\r
+ goto bad;\r
+ p++;\r
+ r = strchr(p, '"');\r
+ if (r == NULL)\r
+ goto bad;\r
+ *r = 0;\r
+\r
+ if (rom_strcmp(offs, p) == 0)\r
+ any_checks_passed = 1;\r
+ else\r
+ skip_sect = 1;\r
+ continue;\r
+ }\r
+ else if (is_expr("check_size_gt", &p))\r
+ {\r
+ int size;\r
+ size = strtoul(p, &r, 0);\r
+ if (r == p || size < 0)\r
+ goto bad;\r
+\r
+ if (Pico.romsize > size)\r
+ any_checks_passed = 1;\r
+ else\r
+ skip_sect = 1;\r
+ continue;\r
+ }\r
+ else if (is_expr("check_csum", &p))\r
+ {\r
+ int csum;\r
+ csum = strtoul(p, &r, 0);\r
+ if (r == p || (csum & 0xffff0000))\r
+ goto bad;\r
+\r
+ if (csum == (rom_read32(0x18c) & 0xffff))\r
+ any_checks_passed = 1;\r
+ else\r
+ skip_sect = 1;\r
+ continue;\r
+ }\r
+ else if (is_expr("check_crc32", &p))\r
+ {\r
+ unsigned int crc;\r
+ crc = strtoul(p, &r, 0);\r
+ if (r == p)\r
+ goto bad;\r
+\r
+ if (rom_crc == 0)\r
+ rom_crc = rom_crc32();\r
+ if (crc == rom_crc)\r
+ any_checks_passed = 1;\r
+ else\r
+ skip_sect = 1;\r
+ continue;\r
+ }\r
+\r
+ /* now time for actions */\r
+ if (is_expr("hw", &p)) {\r
+ if (!any_checks_passed)\r
+ goto no_checks;\r
+ *hw_detected = 1;\r
+ rstrip(p);\r
+\r
+ if (strcmp(p, "svp") == 0)\r
+ PicoSVPStartup();\r
+ else if (strcmp(p, "pico") == 0)\r
+ PicoInitPico();\r
+ else if (strcmp(p, "prot") == 0)\r
+ carthw_sprot_startup();\r
+ else if (strcmp(p, "ssf2_mapper") == 0)\r
+ carthw_ssf2_startup();\r
+ else if (strcmp(p, "x_in_1_mapper") == 0)\r
+ carthw_Xin1_startup();\r
+ else if (strcmp(p, "realtec_mapper") == 0)\r
+ carthw_realtec_startup();\r
+ else if (strcmp(p, "radica_mapper") == 0)\r
+ carthw_radica_startup();\r
+ else if (strcmp(p, "piersolar_mapper") == 0)\r
+ carthw_pier_startup();\r
+ else if (strcmp(p, "prot_lk3") == 0)\r
+ carthw_prot_lk3_startup();\r
+ else {\r
+ elprintf(EL_STATUS, "carthw:%d: unsupported mapper: %s", line, p);\r
+ skip_sect = 1;\r
+ *hw_detected = 0;\r
+ }\r
+ continue;\r
+ }\r
+ if (is_expr("sram_range", &p)) {\r
+ int start, end;\r
+\r
+ if (!any_checks_passed)\r
+ goto no_checks;\r
+ rstrip(p);\r
+\r
+ start = strtoul(p, &r, 0);\r
+ if (r == p)\r
+ goto bad;\r
+ p = sskip(r);\r
+ if (*p != ',')\r
+ goto bad;\r
+ p = sskip(p + 1);\r
+ end = strtoul(p, &r, 0);\r
+ if (r == p)\r
+ goto bad;\r
+ if (((start | end) & 0xff000000) || start > end) {\r
+ elprintf(EL_STATUS, "carthw:%d: bad sram_range: %08x - %08x", line, start, end);\r
+ goto bad_nomsg;\r
+ }\r
+ Pico.sv.start = start;\r
+ Pico.sv.end = end;\r
+ continue;\r
+ }\r
+ else if (is_expr("prop", &p)) {\r
+ if (!any_checks_passed)\r
+ goto no_checks;\r
+ rstrip(p);\r
+\r
+ if (strcmp(p, "no_sram") == 0)\r
+ Pico.sv.flags &= ~SRF_ENABLED;\r
+ else if (strcmp(p, "no_eeprom") == 0)\r
+ Pico.sv.flags &= ~SRF_EEPROM;\r
+ else if (strcmp(p, "filled_sram") == 0)\r
+ *fill_sram = 1;\r
+ else if (strcmp(p, "force_6btn") == 0)\r
+ PicoIn.quirks |= PQUIRK_FORCE_6BTN;\r
+ else {\r
+ elprintf(EL_STATUS, "carthw:%d: unsupported prop: %s", line, p);\r
+ goto bad_nomsg;\r
+ }\r
+ elprintf(EL_STATUS, "game prop: %s", p);\r
+ continue;\r
+ }\r
+ else if (is_expr("eeprom_type", &p)) {\r
+ int type;\r
+ if (!any_checks_passed)\r
+ goto no_checks;\r
+ rstrip(p);\r
+\r
+ type = strtoul(p, &r, 0);\r
+ if (r == p || type < 0)\r
+ goto bad;\r
+ Pico.sv.eeprom_type = type;\r
+ Pico.sv.flags |= SRF_EEPROM;\r
+ continue;\r
+ }\r
+ else if (is_expr("eeprom_lines", &p)) {\r
+ int scl, sda_in, sda_out;\r
+ if (!any_checks_passed)\r
+ goto no_checks;\r
+ rstrip(p);\r
+\r
+ if (!parse_3_vals(p, &scl, &sda_in, &sda_out))\r
+ goto bad;\r
+ if (scl < 0 || scl > 15 || sda_in < 0 || sda_in > 15 ||\r
+ sda_out < 0 || sda_out > 15)\r
+ goto bad;\r
+\r
+ Pico.sv.eeprom_bit_cl = scl;\r
+ Pico.sv.eeprom_bit_in = sda_in;\r
+ Pico.sv.eeprom_bit_out= sda_out;\r
+ continue;\r
+ }\r
+ else if ((tmp = is_expr("prot_ro_value16", &p)) || is_expr("prot_rw_value16", &p)) {\r
+ int addr, mask, val;\r
+ if (!any_checks_passed)\r
+ goto no_checks;\r
+ rstrip(p);\r
+\r
+ if (!parse_3_vals(p, &addr, &mask, &val))\r
+ goto bad;\r
+\r
+ carthw_sprot_new_location(addr, mask, val, tmp ? 1 : 0);\r
+ continue;\r
+ }\r
+\r
+\r
+bad:\r
+ elprintf(EL_STATUS, "carthw:%d: unrecognized expression: %s", line, buff);\r
+bad_nomsg:\r
+ skip_sect = 1;\r
+ continue;\r
+\r
+no_checks:\r
+ elprintf(EL_STATUS, "carthw:%d: command without any checks before it: %s", line, buff);\r
+ skip_sect = 1;\r
+ continue;\r
+ }\r
+\r
+ if (f != NULL)\r
+ fclose(f);\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
+static void PicoCartDetect(const char *carthw_cfg)\r
{\r
- int sram_size = 0, csum;\r
- Pico.m.sram_reg = 0;\r
-\r
- csum = PicoRead32(0x18c) & 0xffff;\r
+ int carthw_detected = 0;\r
+ int fill_sram = 0;\r
\r
+ memset(&Pico.sv, 0, sizeof(Pico.sv));\r
if (Pico.rom[0x1B1] == 'R' && Pico.rom[0x1B0] == 'A')\r
{\r
+ Pico.sv.start = rom_read32(0x1B4) & ~0xff000001; // align\r
+ Pico.sv.end = (rom_read32(0x1B8) & ~0xff000000) | 1;\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
+ Pico.sv.flags |= SRF_EEPROM;\r
+ Pico.sv.flags |= SRF_ENABLED;\r
}\r
- if (sram_size <= 0)\r
+ if (Pico.sv.end == 0 || Pico.sv.start > Pico.sv.end)\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
+ Pico.sv.start = 0x200000;\r
+ Pico.sv.end = 0x203FFF;\r
+ Pico.sv.flags |= SRF_ENABLED;\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
+ Pico.sv.eeprom_type = 0; // 7bit (24C01)\r
+ Pico.sv.eeprom_bit_cl = 1;\r
+ Pico.sv.eeprom_bit_in = 0;\r
+ Pico.sv.eeprom_bit_out= 0;\r
\r
- // SVP detection\r
- else if (name_cmp("Virtua Racing") == 0 ||\r
- name_cmp("VIRTUA RACING") == 0)\r
- {\r
- PicoSVPStartup();\r
- }\r
+ if (carthw_cfg != NULL)\r
+ parse_carthw(carthw_cfg, &fill_sram, &carthw_detected);\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
+ // assume the standard mapper for large roms\r
+ if (!carthw_detected && Pico.romsize > 0x400000)\r
+ carthw_ssf2_startup();\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
- (name_cmp("ALIEN 3") == 0 && Pico.romsize == 0x200000))\r
+ if (Pico.sv.flags & SRF_ENABLED)\r
{\r
- carthw_12in1_startup();\r
- }\r
+ if (Pico.sv.flags & SRF_EEPROM)\r
+ Pico.sv.size = 0x2000;\r
+ else\r
+ Pico.sv.size = Pico.sv.end - Pico.sv.start + 1;\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
+ Pico.sv.data = calloc(Pico.sv.size, 1);\r
+ if (Pico.sv.data == NULL)\r
+ Pico.sv.flags &= ~SRF_ENABLED;\r
\r
- // Radica mapper\r
- else if (name_cmp("KID CHAMELEON") == 0 && Pico.romsize > 0x100000)\r
- {\r
- carthw_radica_startup();\r
+ if (Pico.sv.eeprom_type == 1) // 1 == 0 in PD EEPROM code\r
+ Pico.sv.eeprom_type = 0;\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
+ if ((Pico.sv.flags & SRF_ENABLED) && fill_sram)\r
{\r
- memset(SRam.data, 0xff, sram_size);\r
+ elprintf(EL_STATUS, "SRAM fill");\r
+ memset(Pico.sv.data, 0xff, Pico.sv.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
+ *(int *) (Pico.rom + 0x1f0) = 0x20204520;\r
}\r
\r
+// vim:shiftwidth=2:expandtab\r
notaz.gp2x.de / picodrive.git / blobdiff