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Made Soft IPS patching follow old patch offsetting method

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n-a-c-h
2003-09-10 18:50:48 +00:00
parent 87fe66e6bf
commit 072d8e30a5
1 changed files with 4 additions and 2 deletions
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6
zsnes/src/patch.c
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@@ -25,6 +25,7 @@ extern int NumofBytes;
extern int NumofBanks; extern int NumofBanks;
extern unsigned int *romdata; extern unsigned int *romdata;
extern unsigned char IPSPatched; extern unsigned char IPSPatched;
extern unsigned char Header512;
char *patchfile; char *patchfile;
@@ -32,6 +33,7 @@ void PatchUsingIPS()
{ {
unsigned char *ROM = (unsigned char *)romdata; unsigned char *ROM = (unsigned char *)romdata;
int location = 0, length = 0; int location = 0, length = 0;
int sub = Header512 ? 512 : 0;
FILE *fp = 0; FILE *fp = 0;
fp = fopen(patchfile, "rb"); fp = fopen(patchfile, "rb");
@@ -57,8 +59,8 @@ void PatchUsingIPS()
break; break;
} }
//We assume all IPS files are for ROMs with headers //Offset by size of ROM header
location = inloc - 512; location = inloc - sub;
//Length is a 2 byte value (max 64KB) //Length is a 2 byte value (max 64KB)
length = (fgetc(fp) << 8) | fgetc(fp); length = (fgetc(fp) << 8) | fgetc(fp);