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36 lines
722 B
C
36 lines
722 B
C
/* $NetBSD: fpsetsticky.c,v 1.9 2014/09/17 11:02:55 joerg Exp $ */
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/*
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* Written by J.T. Conklin, Apr 11, 1995
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* Public domain.
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*/
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#include <sys/cdefs.h>
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#if defined(LIBC_SCCS) && !defined(lint)
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__RCSID("$NetBSD: fpsetsticky.c,v 1.9 2014/09/17 11:02:55 joerg Exp $");
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#endif /* LIBC_SCCS and not lint */
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#include "namespace.h"
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#include <ieeefp.h>
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#ifdef __weak_alias
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__weak_alias(fpsetsticky,_fpsetsticky)
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#endif
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fp_except
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fpsetsticky(fp_except sticky)
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{
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fp_except old;
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fp_except new;
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__asm(".set push; .set noat; cfc1 %0,$31; .set pop" : "=r" (old));
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new = old & ~(0x1f << 2);
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new |= (sticky & 0x1f) << 2;
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__asm(".set push; .set noat; ctc1 %0,$31; .set pop" : "=r" (new));
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return (old >> 2) & 0x1f;
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}
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