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/* $NetBSD: fpsetmask.c,v 1.6 2012/03/21 00:38:34 christos Exp $ */
/*
* Written by J.T. Conklin, Apr 10, 1995
* Public domain.
*/
#include <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
__RCSID("$NetBSD: fpsetmask.c,v 1.6 2012/03/21 00:38:34 christos Exp $");
#endif /* LIBC_SCCS and not lint */
#include "namespace.h"
#include <ieeefp.h>
#ifdef __weak_alias
__weak_alias(fpsetmask,_fpsetmask)
#endif
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;
}
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