1/* $NetBSD: ieeefp.h,v 1.4 2011/03/26 19:52:20 christos Exp $ */
2
3/*
4 * Written by J.T. Conklin, Apr 6, 1995
5 * Public domain.
6 */
7
8#ifndef _X86_IEEEFP_H_
9#define _X86_IEEEFP_H_
10
11#include <sys/featuretest.h>
12#include <machine/fenv.h>
13
14typedef int fp_except;
15#define FP_X_INV FE_INVALID /* invalid operation exception */
16#define FP_X_DNML FE_DENORMAL /* denormalization exception */
17#define FP_X_DZ FE_DIVBYZERO /* divide-by-zero exception */
18#define FP_X_OFL FE_OVERFLOW /* overflow exception */
19#define FP_X_UFL FE_UNDERFLOW /* underflow exception */
20#define FP_X_IMP FE_INEXACT /* imprecise (loss of precision) */
21
22typedef enum {
23 FP_RN=FE_TONEAREST, /* round to nearest representable num */
24 FP_RM=FE_DOWNWARD, /* round toward negative infinity */
25 FP_RP=FE_UPWARD, /* round toward positive infinity */
26 FP_RZ=FE_TOWARDZERO /* round to zero (truncate) */
27} fp_rnd;
28
29typedef enum {
30 FP_PS = 0, /* 24 bit (single-precision) */
31 FP_PRS, /* reserved */
32 FP_PD, /* 53 bit (double-precision) */
33 FP_PE /* 64 bit (extended-precision) */
34} fp_prec;
35
36
37#endif /* _X86_IEEEFP_H_ */