xref: /src/sys/arch/x86/include/ieeefp.h

/*	$NetBSD: ieeefp.h,v 1.2.14.1 2010/08/17 06:45:31 uebayasi Exp $	*/

/*
 * Written by J.T. Conklin, Apr 6, 1995
 * Public domain.
 */

#ifndef _X86_IEEEFP_H_
#define _X86_IEEEFP_H_

#include <sys/featuretest.h>
#include <machine/fenv.h>

typedef int fp_except;
#define FP_X_INV	FE_INVALID	/* invalid operation exception */
#define FP_X_DNML	FE_DENORMAL	/* denormalization exception */
#define FP_X_DZ		FE_DIVBYZERO	/* divide-by-zero exception */
#define FP_X_OFL	FE_OVERFLOW	/* overflow exception */
#define FP_X_UFL	FE_UNDERFLOW	/* underflow exception */
#define FP_X_IMP	FE_INEXACT	/* imprecise (loss of precision) */

typedef enum {
    FP_RN=FE_TONEAREST,		/* round to nearest representable number */
    FP_RM=FE_DOWNWARD,		/* round toward negative infinity */
    FP_RP=FE_UPWARD,		/* round toward positive infinity */
    FP_RZ=FE_TOWARDZERO		/* round to zero (truncate) */
} fp_rnd;

#endif /* _X86_IEEEFP_H_ */