psp bugfixes, tools

[picodrive.git] / tools / mkt1.c

diff --git a/tools/mkt1.c b/tools/mkt1.c
new file mode 100644 (file)
index 0000000..b19584b
--- /dev/null
+++ b/tools/mkt1.c
@@ -0,0 +1,70 @@
+#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;
+}
+