FLG_P2_VAL
if (FLG_P1_VAL(flags) != REG_NONE || FLG_P2_VAL(flags) != REG_NONE ||
r2 = get_regname(dhp, FLG_P2_VAL(flags), f->f3.rs2);
p2 = (((flags & FLG_NOIMM) == 0) || (FLG_P2_VAL(flags) != REG_NONE));