FP_C_TO_NETBSD_FLAG
disables = FP_C_TO_NETBSD_FLAG(fp_c) & ~FP_C_TO_NETBSD_MASK(fp_c);
orig_flags = FP_C_TO_NETBSD_FLAG(l->l_md.md_flags);
new_flags = FP_C_TO_NETBSD_FLAG(md_flags);
uint64_t orig_flags = FP_C_TO_NETBSD_FLAG(l->l_md.md_flags);
*retval = FP_C_TO_NETBSD_FLAG(md_flags);
*retval = FP_C_TO_NETBSD_FLAG(l->l_md.md_flags);