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add option to change memory size (from lmod)

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This commit is contained in:
anthony
2009-12-30 15:55:00 -07:00
parent ecae948371
commit 7e4104cabe
1 changed files with 36 additions and 1 deletions
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37
src/fix/main.c
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@@ -20,6 +20,7 @@
#define OPTF_TITLE 0x08L
#define OPTF_TRUNCATE 0x10L
#define OPTF_QUIET 0x20L
#define OPTF_RAMSIZE 0x40L
unsigned long ulOptions;
@@ -51,7 +52,8 @@ PrintUsage(void)
printf("Options:\n");
printf(" -h\t\tThis text\n");
printf(" -d\t\tDebug: Don't change image\n");
printf(" -p[XX]\t\tPad image to valid size\n"
printf(" -m<hx>\tChange RAM size of cartridge\n");
printf(" -p[<hx>]\tPad image to valid size\n"
"\t\tPads to 32/64/128/256/512kB as appropriate\n"
"\t\tAn optional hexadecimal pad value can be supplied (default is 0)");
printf(" -r\t\ttRuncate image to valid size\n\t\t\tTruncates to 32/64/128/256/512kB as appropriate\n");
@@ -139,6 +141,7 @@ main(int argc, char *argv[])
char cartname[32];
FILE *f;
int pad_value = 0;
int ram_size = 0;
ulOptions = 0;
@@ -155,6 +158,20 @@ main(int argc, char *argv[])
case 'd':
ulOptions |= OPTF_DEBUG;
break;
case 'm':
ulOptions |= OPTF_RAMSIZE;
if (strlen(argv[argn] + 2) > 0 && strlen(argv[argn] + 2) <= 2) {
int result;
result = sscanf(argv[argn] + 2,"%x", &ram_size);
if (!((result == EOF) || (result == 1))) {
FatalError("Invalid argument for option 'm'");
}
} else if (strlen(argv[argn] + 2) > 0) {
FatalError("RAM size must be between 0 and FF");
} else {
FatalError("Invalid argument for option 'm'");
}
break;
case 'p':
ulOptions |= OPTF_PAD;
if (strlen(argv[argn] + 2) > 0 && strlen(argv[argn] + 2) <= 2) {
@@ -302,6 +319,24 @@ main(int argc, char *argv[])
printf("\tTitle set to %s\n", cartname);
}
}
/*
* -m (Set ram size) option code
*
*/
if (ulOptions & OPTF_RAMSIZE) {
/* carttype byte can be anything? */
if (!(ulOptions & OPTF_QUIET)) {
printf("Setting RAM size\n");
}
fflush(f);
fseek(f, 0x149L, SEEK_SET);
fputc(ram_size, f);
fflush(f);
if (!(ulOptions & OPTF_QUIET)) {
printf("\tRAM size set to %#02X\n", ram_size);
}
}
/*
* -v (Validate header) option code
*