dos33fsprogs/demos/xmas_2023/generate_common.c
2023-12-04 22:17:22 -05:00

78 lines
1.3 KiB
C

#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
static FILE *fff;
static void find_address(char *symbol_name, int routine_offset) {
unsigned int addr=0;
char string[BUFSIZ],*result;
char temp_name[BUFSIZ];
strncpy(temp_name,symbol_name,BUFSIZ);
strncat(temp_name,":",2);
while(1) {
result=fgets(string,BUFSIZ,fff);
if (result==NULL) {
fprintf(stderr,"Error: %s not found!\n",symbol_name);
exit(-1);
}
result=strstr(string,temp_name);
if (result!=NULL) {
string[6]=0;
sscanf(string,"%x",&addr);
break;
}
}
printf("%s\t=$%04x\n",symbol_name,addr+routine_offset);
}
int main(int argc, char **argv) {
int c;
char *filename;
char symbol[BUFSIZ];
int routine_offset=0xd000;
while ( (c=getopt(argc, argv, "a:s:") ) != -1) {
switch(c) {
case 'a':
routine_offset=strtol(optarg, NULL, 0);
break;
case 's':
strncpy(symbol,optarg,BUFSIZ-1);
break;
default:
fprintf(stderr,"Unknown option %c\n",c);
exit(-1);
break;
}
}
filename=strdup(argv[optind]);
fff=fopen(filename,"r");
if (fff==NULL) {
fprintf(stderr,"ERROR! could not open %s\n",filename);
return -1;
}
find_address(symbol,routine_offset);
fclose(fff);
return 0;
}