root/sys/arch/x86/include/ieeefp.h
/*      $NetBSD: ieeefp.h,v 1.4 2011/03/26 19:52:20 christos 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 num */
        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;

typedef enum {
        FP_PS = 0,                      /* 24 bit (single-precision) */
        FP_PRS,                         /* reserved */
        FP_PD,                          /* 53 bit (double-precision) */
        FP_PE                           /* 64 bit (extended-precision) */
} fp_prec;


#endif /* _X86_IEEEFP_H_ */