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add -b option to change MBC type (lmod)

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This commit is contained in:
anthony
2009-12-30 16:32:28 -07:00
parent 7e4104cabe
commit 2afdc060d0
1 changed files with 33 additions and 0 deletions
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33
src/fix/main.c
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@@ -21,6 +21,7 @@
#define OPTF_TRUNCATE 0x10L
#define OPTF_QUIET 0x20L
#define OPTF_RAMSIZE 0x40L
#define OPTF_MBCTYPE 0x80L
unsigned long ulOptions;
@@ -142,6 +143,7 @@ main(int argc, char *argv[])
FILE *f;
int pad_value = 0;
int ram_size = 0;
int mbc_type = 0;
ulOptions = 0;
@@ -172,6 +174,20 @@ main(int argc, char *argv[])
FatalError("Invalid argument for option 'm'");
}
break;
case 'b':
ulOptions |= OPTF_MBCTYPE;
if (strlen(argv[argn] + 2) > 0 && strlen(argv[argn] + 2) <= 2) {
int result;
result = sscanf(argv[argn] + 2, "%x", &mbc_type);
if (!((result == EOF) || (result == 1))) {
FatalError("Invalid argument for option 'b'");
}
} else if (strlen(argv[argn] + 2) > 0) {
FatalError("MBC type must be between 0 and FF");
} else {
FatalError("Invalid argument for option 'b'");
}
break;
case 'p':
ulOptions |= OPTF_PAD;
if (strlen(argv[argn] + 2) > 0 && strlen(argv[argn] + 2) <= 2) {
@@ -337,6 +353,23 @@ main(int argc, char *argv[])
printf("\tRAM size set to %#02X\n", ram_size);
}
}
/*
* -b (Set MBC type) option code
*/
if (ulOptions & OPTF_MBCTYPE) {
/* carttype byte can be anything? */
if (!(ulOptions & OPTF_QUIET)) {
printf("Setting MBC type\n");
}
fflush(f);
fseek(f, 0x147L, SEEK_SET);
fputc(mbc_type, f);
fflush(f);
if (!(ulOptions & OPTF_QUIET)) {
printf("\tMBC type set to %#02X\n", mbc_type);
}
}
/*
* -v (Validate header) option code
*