39 lines
744 B
C
39 lines
744 B
C
/* $NetBSD: fpgetsticky.c,v 1.4 2002/01/13 21:45:46 thorpej 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: fpgetsticky.c,v 1.4 2002/01/13 21:45:46 thorpej 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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#include <machine/cpufunc.h>
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#include <machine/fpu.h>
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#ifdef __weak_alias
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__weak_alias(fpgetsticky,_fpgetsticky)
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#endif
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fp_except
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fpgetsticky()
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{
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fp_except x;
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fp_except ebits = FPC_IEN | FPC_OVE | FPC_IVE | FPC_DZE | FPC_UNDE;
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sfsr(x);
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/* Map FPC_UF to soft underflow enable */
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if (x & FPC_UF)
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x |= FPC_UNDE << 1;
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else
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x &= ~(FPC_UNDE << 1);
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x >>= 1;
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return x & ebits;
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}
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