kolibrios-gitea/programs/emulator/dgen-sdl-1.33/dz80/skip.c
turbocat ea1a60faa3 Upload DGEN port source
git-svn-id: svn://kolibrios.org@9837 a494cfbc-eb01-0410-851d-a64ba20cac60
2022-06-15 18:25:17 +00:00

62 lines
830 B
C

/*
* skip.c
*
˙ */
#define MEMSIZE 65536
#define MASK8 0xFF
unsigned char mem[MEMSIZE/8];
void mem_reset(void)
{
int i;
for (i=0; i < sizeof(mem); i++)
mem[i] = MASK8;
}
void mem_skip(int min, int max)
{
int pc;
for (pc = min; pc < max; pc++)
mem[pc >> 3] &= ~(1 << (pc & 7));
}
void print_mem(void)
{
int fd = creat("opmap", 0666);
int i;
#if 0
for (i=0; i < sizeof(mem); i++)
if (mem[i] != MASK8) printf("%04x: %02x\n", i * 8, mem[i]);
#else
write(fd, mem, sizeof(mem));
#endif
close(fd);
}
void get_range(char *s, int *min, int *max)
{
sscanf(s, "%x-%x", min, max);
printf("%x-%x\n", *min, *max);
}
main(int argc, char **argv)
{
int i, min, max;
mem_reset();
for (i=1; i < argc; i++) {
get_range(argv[i], &min, &max);
mem_skip(min, max);
}
print_mem();
}