fmin Operation Font Conventions
if (PR[qp]) {
fp_check_target_register;
if (tmp_isrcode = fp_reg_disabled(f1, f2, f3, 0))
disabled_fp_register_fault(tmp_isrcode, 0);

if ( fp_is_natval([f2]) || fp_is_natval(FR[f3])) {
FR[f1] = NATVAL;
} else {
fminmax_exception_fault_check(f2, f3, sf, &tmp_fp_env);
if ( fp_raise_fault(tmp_fp_env))
fp_exception_fault( fp_decode_fault(tmp_fp_env));

tmp_bool_res = fp_less_than( fp_reg_read(FR[f2]), fp_reg_read(FR[f3]));
FR[f1] = tmp_bool_res ? FR[f2] : FR[f3];

fp_update_fpsr(sf, tmp_fp_env);
}
fp_update_psr(f1);
}