\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
PicoAHW &= PAHW_MCD|PAHW_SMS;\r
\r
- PicoMemResetHooks();\r
+ PicoCartMemSetup = NULL;\r
PicoDmaHook = NULL;\r
PicoResetHook = NULL;\r
PicoLineHook = NULL;\r
case PAHW_SMS: PicoMemSetupMS(); break;\r
}\r
\r
+ if (PicoCartMemSetup != NULL)\r
+ PicoCartMemSetup();\r
+\r
if (PicoAHW & PAHW_SMS)\r
PicoPowerMS();\r
else\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
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
-{\r
- return rom_strcmp(0x150, name);\r
-}\r
-\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 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
+static void parse_carthw(int *fill_sram)\r
+{\r
+ int line = 0, any_checks_passed = 0, skip_sect = 0;\r
+ char buff[256], *p, *r;\r
+ FILE *f;\r
+\r
+ f = fopen("carthw.cfg", "r");\r
+ if (f == NULL) {\r
+ elprintf(EL_STATUS, "couldn't open carthw.txt!");\r
+ return;\r
+ }\r
+\r
+ while ((p = fgets(buff, sizeof(buff), f)))\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
+\r
+ /* now time for actions */\r
+ if (is_expr("hw", &p)) {\r
+ if (!any_checks_passed)\r
+ goto no_checks;\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, "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 {\r
+ elprintf(EL_STATUS, "carthw:%d: unsupported mapper: %s", line, p);\r
+ skip_sect = 1;\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
+ SRam.start = start;\r
+ SRam.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
+ SRam.flags &= ~SRF_ENABLED;\r
+ else if (strcmp(p, "no_eeprom") == 0)\r
+ SRam.flags &= ~SRF_EEPROM;\r
+ else if (strcmp(p, "filled_sram") == 0)\r
+ *fill_sram = 1;\r
+ else {\r
+ elprintf(EL_STATUS, "carthw:%d: unsupported prop: %s", line, p);\r
+ goto bad_nomsg;\r
+ }\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
+ SRam.eeprom_type = type;\r
+ SRam.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
+ scl = strtoul(p, &r, 0);\r
+ if (r == p || scl < 0 || scl > 15)\r
+ goto bad;\r
+ p = sskip(r);\r
+ if (*p++ != ',')\r
+ goto bad;\r
+ sda_in = strtoul(p, &r, 0);\r
+ if (r == p || sda_in < 0 || sda_in > 15)\r
+ goto bad;\r
+ p = sskip(r);\r
+ if (*p++ != ',')\r
+ goto bad;\r
+ sda_out = strtoul(p, &r, 0);\r
+ if (r == p || sda_out < 0 || sda_out > 15)\r
+ goto bad;\r
+\r
+ SRam.eeprom_bit_cl = scl;\r
+ SRam.eeprom_bit_in = sda_in;\r
+ SRam.eeprom_bit_out= sda_out;\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
+ 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
{\r
- int sram_size = 0, csum;\r
- Pico.m.sram_status = 0;\r
+ int fill_sram = 0, csum;\r
\r
csum = rom_read32(0x18c) & 0xffff;\r
\r
+ memset(&SRam, 0, sizeof(SRam));\r
if (Pico.rom[0x1B1] == 'R' && Pico.rom[0x1B0] == 'A')\r
{\r
+ SRam.start = rom_read32(0x1B4) & ~0xff000001; // align\r
+ SRam.end = (rom_read32(0x1B8) & ~0xff000000) | 1;\r
if (Pico.rom[0x1B2] & 0x40)\r
- {\r
// EEPROM\r
- SRam.start = rom_read32(0x1B4) & ~1; // zero address is used for clock by some games\r
- SRam.end = rom_read32(0x1B8);\r
- sram_size = 0x2000;\r
- Pico.m.sram_status |= SRS_EEPROM;\r
- } else {\r
- // normal SRAM\r
- SRam.start = rom_read32(0x1B4) & ~0xff;\r
- SRam.end = rom_read32(0x1B8) | 1;\r
- sram_size = SRam.end - SRam.start + 1;\r
- }\r
- SRam.start &= ~0xff000000;\r
- SRam.end &= ~0xff000000;\r
- Pico.m.sram_status |= SRS_DETECTED;\r
+ SRam.flags |= SRF_EEPROM;\r
+ SRam.flags |= SRF_ENABLED;\r
}\r
- if (sram_size <= 0)\r
+ if (SRam.end == 0 || SRam.start > SRam.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
- }\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
+ SRam.flags |= SRF_ENABLED;\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_status = SRS_DETECTED|SRS_EEPROM;\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_status = SRS_DETECTED|SRS_EEPROM;\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
+ parse_carthw(&fill_sram);\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 (SRam.flags & SRF_ENABLED)\r
{\r
- carthw_12in1_startup();\r
- }\r
+ if (SRam.flags & SRF_EEPROM)\r
+ SRam.size = 0x2000;\r
+ else\r
+ SRam.size = SRam.end - SRam.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
+ SRam.data = calloc(SRam.size, 1);\r
+ if (SRam.data == NULL)\r
+ SRam.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 (SRam.eeprom_type == 1) // 1 == 0 in PD EEPROM code\r
+ SRam.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 ((SRam.flags & SRF_ENABLED) && fill_sram)\r
{\r
- memset(SRam.data, 0xff, sram_size);\r
+ elprintf(EL_STATUS, "SRAM fill");\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
+ *(int *) (Pico.rom + 0x1f0) = 0x20204520;\r
}\r
\r
notaz.gp2x.de / picodrive.git / blobdiff