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- #include <stdio.h>
- #include <string.h>
- static FILE *fo = NULL;
- static void out(int r, int is_last)
- {
- if (!is_last)
- {
- fprintf(fo, " or $t%i, $t%i, $a2\n", r, r);
- fprintf(fo, " sb $t%i, %i($a0)\n", r, r);
- }
- else
- {
- fprintf(fo, " or $t%i, $t%i, $a2\n", r, r);
- fprintf(fo, " jr $ra\n");
- fprintf(fo, " sb $t%i, %i($a0)\n", r, r);
- }
- }
- unsigned char pattern_db[0x100];
- static int check_label(unsigned char i)
- {
- if (!pattern_db[i]) {
- fprintf(fo, "tile%i%i%i%i%i%i%i%i:\n", (i&0x80)?1:0, (i&0x40)?1:0, (i&0x20)?1:0, (i&0x10)?1:0,
- (i&0x08)?1:0, (i&0x04)?1:0, (i&0x02)?1:0, (i&0x01)?1:0);
- pattern_db[i] = 1;
- return 0;
- }
- return 1;
- }
- int main()
- {
- int i;
- fo = fopen("out.s", "w");
- if (!fo) return 1;
- memset(pattern_db, 0, sizeof(pattern_db));
- for (i = 0xff; i > 0; i--)
- {
- if (check_label(i)) continue;
- if (i & 0x01) out(0, !(i&0xfe));
- check_label(i&0xfe);
- if (i & 0x02) out(1, !(i&0xfc));
- check_label(i&0xfc);
- if (i & 0x04) out(2, !(i&0xf8));
- check_label(i&0xf8);
- if (i & 0x08) out(3, !(i&0xf0));
- check_label(i&0xf0);
- if (i & 0x10) out(4, !(i&0xe0));
- check_label(i&0xe0);
- if (i & 0x20) out(5, !(i&0xc0));
- check_label(i&0xc0);
- if (i & 0x40) out(6, !(i&0x80));
- check_label(i&0x80);
- if (i & 0x80) out(7, 1);
- }
- fclose(fo);
- return 0;
- }
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