+#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(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(i)) continue;
+
+ if (i & 0x01) out(0, 0);
+ check(i&0xfe);
+ if (i & 0x02) out(1, 0);
+ check(i&0xfc);
+ if (i & 0x04) out(2, 0);
+ check(i&0xf8);
+ if (i & 0x08) out(3, 0);
+ check(i&0xf0);
+ if (i & 0x10) out(4, 0);
+ check(i&0xe0);
+ if (i & 0x20) out(5, 0);
+ check(i&0xc0);
+ if (i & 0x40) out(6, 0);
+ check(i&0x80);
+ if (i & 0x80) out(7, 1);
+ }
+
+ fclose(fo);
+
+ return 0;
+}
+