/*      $OpenBSD: fpsetmask.c,v 1.2 2026/07/11 15:54:36 tb Exp $        */

/*
 * Written by J.T. Conklin, Apr 10, 1995
 * Public domain.
 */

#include <ieeefp.h>

fp_except
fpsetmask(fp_except mask)
{
        fp_except old;
        fp_except new;

        __asm__("st %%fsr,%0" : "=m" (*&old));

        new = old;
        new &= ~(0x1f << 23); 
        new |= ((mask & 0x1f) << 23);

        __asm__("ld %0,%%fsr" : : "m" (*&new));

        return (old >> 23) & 0x1f;
}