my_fp_classl
t1 = my_fp_classl(&fpreg(uap, 0));
t2 = my_fp_classl(&fpreg(uap, op & 7));
t2 = my_fp_classl(&fpreg(uap, 1));
t1 = my_fp_classl((long double*)FPREG(rs1));
t2 = my_fp_classl((long double*)FPREG(rs2));