insn_sc
[insn_sc] = {M(mm_pool32c_op, 0, 0, (mm_sc_func << 1), 0, 0), RT | RS | SIMM},
[insn_sc] = {M(sc_op, 0, 0, 0, 0, 0), RS | RT | SIMM},
[insn_sc] = {M6(spec3_op, 0, 0, 0, sc6_op), RS | RT | SIMM9},