Pecus/libretro-atari800
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autodetect a52 cart type

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Not6
2017-03-04 02:26:29 +01:00
parent d913eddd2f
commit 1ac0cbc2e4
3 changed files with 194 additions and 6 deletions
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atari800/src/cartridge.c
+51 -3
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@@ -1370,7 +1370,10 @@ void CARTRIDGE_ColdStart(void) {
ResetCartState(&CARTRIDGE_piggyback);
MapActiveCart();
}
#ifdef __LIBRETRO__
#include "atari5200_hash.h"
extern int autorun5200;
#endif
/* Loads a cartridge from FILENAME. Copies FILENAME to CART_FILENAME.
Allocates a buffer with cartridge image data and puts it in *CART_IMAGE.
Sets *CART_TYPE to the cartridge type. */
@@ -1380,7 +1383,9 @@ static int InsertCartridge(const char *filename, CARTRIDGE_image_t *cart)
int len;
int type;
UBYTE header[16];
#ifdef __LIBRETRO__
ULONG crc;
#endif
/* open file */
fp = fopen(filename, "rb");
if (fp == NULL)
@@ -1388,7 +1393,12 @@ static int InsertCartridge(const char *filename, CARTRIDGE_image_t *cart)
/* check file length */
len = Util_flen(fp);
Util_rewind(fp);
#ifdef __LIBRETRO__
if(autorun5200){
CRC32_FromFile(fp, &crc);
Util_rewind(fp);
}
#endif
/* Guard against providing cart->filename as parameter. */
if (cart->filename != filename)
/* Save Filename for state save */
@@ -1406,6 +1416,41 @@ static int InsertCartridge(const char *filename, CARTRIDGE_image_t *cart)
cart->type = CARTRIDGE_NONE;
len >>= 10; /* number of kilobytes */
cart->size = len;
#ifdef __LIBRETRO__
if(autorun5200){
int match=0,i=0;
printf("Hack Libretro:atari800_opt1 ON\n");
while(a5200_game[i].type!=-1){
if(crc==a5200_game[i].crc){
match=1;
if(a5200_game[i].type==0)
switch(cart->size){
case 4096:
cart->type =CARTRIDGE_5200_4;
break;
case 8192:
cart->type =CARTRIDGE_5200_8;
break;
case 16384:
cart->type =CARTRIDGE_5200_NS_16;
break;
case 32768:
cart->type =CARTRIDGE_5200_32;
break;
}
else if(a5200_game[i].type==1)cart->type =CARTRIDGE_5200_40;
else if(a5200_game[i].type==2)cart->type =CARTRIDGE_5200_EE_16;
printf("Hack Libretro:A5200 cart->type:%d %x\n",cart->type,crc);
break;
}
i++;
}
if(match==1)goto label_fin;
}
#endif
for (type = 1; type <= CARTRIDGE_LAST_SUPPORTED; type++)
if (CARTRIDGE_kb[type] == len) {
if (cart->type == CARTRIDGE_NONE) {
@@ -1416,6 +1461,9 @@ static int InsertCartridge(const char *filename, CARTRIDGE_image_t *cart)
return len;
}
}
#ifdef __LIBRETRO__
label_fin:
#endif
if (cart->type != CARTRIDGE_NONE) {
InitCartridge(cart);
return 0; /* ok */