U4_12
[U4_12] = { 4, 12, 0 },
[INSTR_RIE_RUI0] = { R_8, I16_16, U4_12, 0, 0, 0 },
[INSTR_RIE_RUPI] = { R_8, I8_32, U4_12, J16_16, 0, 0 },
[INSTR_RIE_RUPU] = { R_8, U8_32, U4_12, J16_16, 0, 0 },
[INSTR_RIS_RURDI] = { R_8, I8_32, U4_12, D_20, B_16, 0 },
[INSTR_RIS_RURDU] = { R_8, U8_32, U4_12, D_20, B_16, 0 },
[INSTR_RSY_RURD] = { R_8, U4_12, D20_20, B_16, 0, 0 },
[INSTR_RSY_RURD2] = { R_8, D20_20, B_16, U4_12, 0, 0 },
[INSTR_RS_RURD] = { R_8, U4_12, D_20, B_16, 0, 0 },
[INSTR_SS_LIRDRD] = { D_20, L4_8, B_16, D_36, B_32, U4_12 },