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@@ -0,0 +1,70 @@
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+#include <stdio.h>
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+#include <string.h>
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+
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+static FILE *fo = NULL;
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+
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+static void out(int r, int is_last)
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+{
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+ if (!is_last)
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+ {
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+ fprintf(fo, " or $t%i, $t%i, $a2\n", r, r);
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+ fprintf(fo, " sb $t%i, %i($a0)\n", r, r);
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+ }
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+ else
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+ {
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+ fprintf(fo, " or $t%i, $t%i, $a2\n", r, r);
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+ fprintf(fo, " jr $ra\n");
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+ fprintf(fo, " sb $t%i, %i($a0)\n", r, r);
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+ }
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+}
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+
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+unsigned char pattern_db[0x100];
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+
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+static int check(unsigned char i)
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+{
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+ if (!pattern_db[i]) {
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+ 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,
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+ (i&0x08)?1:0, (i&0x04)?1:0, (i&0x02)?1:0, (i&0x01)?1:0);
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+ pattern_db[i] = 1;
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+ return 0;
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+ }
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+
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+ return 1;
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+}
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+
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+
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+int main()
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+{
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+ int i;
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+
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+ fo = fopen("out.s", "w");
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+ if (!fo) return 1;
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+
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+ memset(pattern_db, 0, sizeof(pattern_db));
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+
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+ for (i = 0xff; i > 0; i--)
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+ {
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+ if (check(i)) continue;
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+
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+ if (i & 0x01) out(0, 0);
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+ check(i&0xfe);
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+ if (i & 0x02) out(1, 0);
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+ check(i&0xfc);
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+ if (i & 0x04) out(2, 0);
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+ check(i&0xf8);
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+ if (i & 0x08) out(3, 0);
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+ check(i&0xf0);
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+ if (i & 0x10) out(4, 0);
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+ check(i&0xe0);
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+ if (i & 0x20) out(5, 0);
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+ check(i&0xc0);
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+ if (i & 0x40) out(6, 0);
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+ check(i&0x80);
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+ if (i & 0x80) out(7, 1);
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+ }
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+
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+ fclose(fo);
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+
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+ return 0;
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+}
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+
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