X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=Pico%2FCart.c;h=f2683ca8f5c5ac22ca01a08a0aa5b243043937d6;hb=1cb1584b86a5679b8d32ccfc190f6e76c920810f;hp=e616622a4488c996ae384c2aadbfc8ca9581539b;hpb=945c2fdcfda07a12c9210a90ab2e809bf4d33e6f;p=picodrive.git

diff --git a/Pico/Cart.c b/Pico/Cart.c
index e616622..f2683ca 100644
--- a/Pico/Cart.c
+++ b/Pico/Cart.c
@@ -15,9 +15,13 @@
 
 static char *rom_exts[] = { "bin", "gen", "smd", "iso" };
 
+void (*PicoCartUnloadHook)(void) = NULL;
+
 void (*PicoCartLoadProgressCB)(int percent) = NULL;
 void (*PicoCDLoadProgressCB)(int percent) = NULL; // handled in Pico/cd/cd_file.c
 
+static void PicoCartDetect(void);
+
 /* cso struct */
 typedef struct _cso_struct
 {
@@ -133,6 +137,9 @@ zip_failed:
     if (f == NULL)
       goto cso_failed;
 
+    /* we use our own buffering */
+    setvbuf(f, NULL, _IONBF, 0);
+
     cso = malloc(sizeof(*cso));
     if (cso == NULL)
       goto cso_failed;
@@ -199,6 +206,7 @@ cso_failed:
   file->size  = ftell(f);
   file->type  = PMT_UNCOMPRESSED;
   fseek(f, 0, SEEK_SET);
+
   return file;
 }
 
@@ -487,16 +495,27 @@ int PicoCartInsert(unsigned char *rom,unsigned int romsize)
   // notaz: add a 68k "jump one op back" opcode to the end of ROM.
   // This will hang the emu, but will prevent nasty crashes.
   // note: 4 bytes are padded to every ROM
-  if(rom != NULL)
+  if (rom != NULL)
     *(unsigned long *)(rom+romsize) = 0xFFFE4EFA; // 4EFA FFFE byteswapped
 
   Pico.rom=rom;
   Pico.romsize=romsize;
 
+  if (SRam.data) {
+    free(SRam.data);
+    SRam.data = NULL;
+  }
+
+  if (PicoCartUnloadHook != NULL) {
+    PicoCartUnloadHook();
+    PicoCartUnloadHook = NULL;
+  }
+
   PicoMemResetHooks();
   PicoDmaHook = NULL;
   PicoResetHook = NULL;
   PicoLineHook = NULL;
+  PicoLoadStateHook = NULL;
   carthw_chunks = NULL;
 
   PicoMemReset();
@@ -511,12 +530,16 @@ int PicoCartInsert(unsigned char *rom,unsigned int romsize)
   else PicoMemSetup();
   PicoMemReset();
 
-  return PicoReset(1);
+  PicoPower();
+  return 0;
 }
 
-int PicoUnloadCart(unsigned char* romdata)
+int PicoCartUnload(void)
 {
-  free(romdata);
+  if (Pico.rom != NULL) {
+    free(Pico.rom);
+    Pico.rom=NULL;
+  }
   return 0;
 }
 
@@ -535,11 +558,13 @@ static int name_cmp(const char *name)
   return rom_strcmp(0x150, name);
 }
 
-/* various cart-specific things, which can't be handled by generic code */
-void PicoCartDetect(void)
+/*
+ * various cart-specific things, which can't be handled by generic code
+ * (maybe I should start using CRC for this stuff?)
+ */
+static void PicoCartDetect(void)
 {
   int sram_size = 0, csum;
-  if(SRam.data) free(SRam.data); SRam.data=0;
   Pico.m.sram_reg = 0;
 
   csum = PicoRead32(0x18c) & 0xffff;
@@ -573,10 +598,16 @@ void PicoCartDetect(void)
     sram_size  = 0x004000;
   }
 
+  // this game actually doesn't have SRAM, but some weird protection
+  if (rom_strcmp(0x120, "PUGGSY") == 0)
+  {
+    SRam.start = SRam.end = sram_size = 0;
+  }
+
   if (sram_size)
   {
     SRam.data = (unsigned char *) calloc(sram_size, 1);
-    if(!SRam.data) return;
+    if (SRam.data == NULL) return;
   }
   SRam.changed = 0;
 
@@ -633,20 +664,40 @@ void PicoCartDetect(void)
     SRam.eeprom_bit_out= 7;
   }
 
+  // SVP detection
+  else if (name_cmp("Virtua Racing") == 0 ||
+           name_cmp("VIRTUA RACING") == 0)
+  {
+    PicoSVPStartup();
+  }
+
+  // Detect 12-in-1 mapper
+  else if ((name_cmp("ROBOCOP 3") == 0 && Pico.romsize == 0x200000) ||
+    (rom_strcmp(0x160, "FLICKY") == 0 && Pico.romsize >= 0x200000)  ||
+    (name_cmp(" SHOVE IT!") == 0 && Pico.romsize >= 0x200000) ||
+    (name_cmp("MS PACMAN") == 0 && Pico.romsize >= 0x200000)) // bad dump?
+  {
+    carthw_12in1_startup();
+  }
+
+  // Realtec mapper
+  else if (Pico.romsize == 512*1024 && (
+    rom_strcmp(0x94, "THE EARTH DEFEND") == 0 ||
+    rom_strcmp(0xfe, "WISEGAME 11-03-1993") == 0 || // Funny World
+    rom_strcmp(0x95, "MALLET LEGEND ") == 0)) // Whac-A-Critter
+  {
+    carthw_realtec_startup();
+  }
+
   // Some games malfunction if SRAM is not filled with 0xff
   if (name_cmp("DINO DINI'S SOCCER") == 0 ||
       name_cmp("MICRO MACHINES II") == 0)
+  {
     memset(SRam.data, 0xff, sram_size);
+  }
 
   // Unusual region 'code'
   if (rom_strcmp(0x1f0, "EUROPE") == 0)
     *(int *) (Pico.rom+0x1f0) = 0x20204520;
-
-  // SVP detection
-  if (name_cmp("Virtua Racing") == 0 ||
-      name_cmp("VIRTUA RACING") == 0)
-  {
-    PicoSVPInit();
-  }
 }