Home | History | Annotate | Line # | Download | only in include 
      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 
     14 typedef 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 
     22 typedef 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 
     29 typedef 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_ */
     38