_fp_iu_simulator
ftt = _fp_iu_simulator(pfpsd, fp.inst, pregs,
ftt = _fp_iu_simulator(pfpsd, fp.inst, pregs, prw, pfpu);
ftt = _fp_iu_simulator(pfpsd, fp.inst, pregs, prw, pfpu);
extern enum ftt_type _fp_iu_simulator(fp_simd_type *, fp_inst_type,