Rotate Map (R1) 2

0006f1a8: 3c02800a lui r2,0x800a
0006f1ac: 84427786 lh r2,0x7786(r2)
0006f1b0: 3c01800c lui r1,0x800c
0006f1b4: ac247c60 sw r4,0x7c60(r1)
0006f1b8: 3042fe00 andi r2,r2,0xfe00
0006f1bc: 3c01800b lui r1,0x800b
0006f1c0: ac226694 sw r2,0x6694(r1)
0006f1c4: 308203ff andi r2,r4,0x03ff
0006f1c8: 14400003 bne r2,r0,0x0006f1d8
0006f1cc: 2482fe00 addiu r2,r4,0xfe00
0006f1d0: 3c01800c lui r1,0x800c
0006f1d4: ac227c60 sw r2,0x7c60(r1)
0006f1d8: 03e00008 jr r31
0006f1dc: 00000000 nop