35 lines
633 B
C
35 lines
633 B
C
/* $NetBSD: fpsetmask.c,v 1.3 1997/07/13 18:45:35 christos Exp $ */
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/*
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* Written by J.T. Conklin, Apr 10, 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: fpsetmask.c,v 1.3 1997/07/13 18:45:35 christos Exp $");
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#endif /* LIBC_SCCS and not lint */
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#include <ieeefp.h>
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#include <machine/cpufunc.h>
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#include <machine/fpu.h>
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fp_except
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fpsetmask(mask)
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fp_except mask;
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{
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fp_except old;
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fp_except new;
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fp_except ebits = FPC_IEN | FPC_OVE | FPC_IVE | FPC_DZE | FPC_UNDE;
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sfsr(old);
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new = old;
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new &= ~ebits;
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new |= mask & ebits;
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lfsr(new);
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return old & ebits;
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}
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