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exeflat: pass argv[3] to use as start_seg in write_header

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This commit is contained in:
C. Masloch 2022-05-25 19:53:23 +02:00 committed by Kenneth J Davis
parent 99614259ae
commit 9382d7ce00
1 changed files with 6 additions and 5 deletions
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11
utils/exeflat.c
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@ -318,10 +318,11 @@ static int exeflat(const char *srcfile, const char *dstfile,
}
static void write_header(FILE *dest, unsigned char * code, UWORD stubsize,
exe_header *header)
const char *start, exe_header *header)
{
UWORD stackpointerpatch, stacksegmentpatch, psppatch, csippatch, patchvalue;
UWORD end;
UWORD start_seg = (UWORD)strtol(start, NULL, 0);
stackpointerpatch = code[0x100] + code[0x100 + 1] * 256U;
stacksegmentpatch = code[0x102] + code[0x102 + 1] * 256U;
@ -342,17 +343,17 @@ static void write_header(FILE *dest, unsigned char * code, UWORD stubsize,
code[stackpointerpatch] = patchvalue & 0xFF;
code[stackpointerpatch + 1] = (patchvalue >> 8) & 0xFF;
patchvalue = code[stacksegmentpatch] + code[stacksegmentpatch + 1] * 256U;
patchvalue += header->exInitSS + 0x60 + (stubsize >> 4);
patchvalue += header->exInitSS + start_seg + (stubsize >> 4);
code[stacksegmentpatch] = patchvalue & 0xFF;
code[stacksegmentpatch + 1] = (patchvalue >> 8) & 0xFF;
patchvalue = code[psppatch] + code[psppatch + 1] * 256U;
patchvalue += 0x60 + (stubsize >> 4);
patchvalue += start_seg + (stubsize >> 4);
code[psppatch] = patchvalue & 0xFF;
code[psppatch + 1] = (patchvalue >> 8) & 0xFF;
patchvalue = header->exInitIP;
code[csippatch] = patchvalue & 0xFF;
code[csippatch + 1] = (patchvalue >> 8) & 0xFF;
patchvalue = header->exInitCS + 0x60 + (stubsize >> 4);
patchvalue = header->exInitCS + start_seg + (stubsize >> 4);
code[csippatch + 2] = patchvalue & 0xFF;
code[csippatch + 3] = (patchvalue >> 8) & 0xFF;
@ -524,7 +525,7 @@ int main(int argc, char **argv)
exit(1);
}
write_header(dest, code, stubsize, &header);
write_header(dest, code, stubsize, argv[3], &header);
do {
size = fread(buffer, 1, 32 * 1024, source);
if (fwrite(buffer, 1, size, dest) != size) {