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Define the FP exeception types. 

Use these types to create the bit values used for fp_except values.
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mark 1996-10-15 00:06:47 +00:00
parent 43fce8325b
commit b4c38ce254
1 changed files with 22 additions and 7 deletions
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29
sys/arch/arm32/include/ieeefp.h
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@ -1,19 +1,34 @@
/* $NetBSD: ieeefp.h,v 1.1 1996/05/12 21:26:24 mark Exp $ */
/* $NetBSD: ieeefp.h,v 1.2 1996/10/15 00:06:47 mark Exp $ */
/*
* Written by J.T. Conklin, Apr 28, 1995
* Based on ieeefp.h written by J.T. Conklin, Apr 28, 1995
* Public domain.
*/
#ifndef _ARM32_IEEEFP_H_
#define _ARM32_IEEEFP_H_
/* FP exception codes */
#define FP_EXCEPT_INV 0
#define FP_EXCEPT_DZ 1
#define FP_EXCEPT_OFL 2
#define FP_EXCEPT_UFL 3
#define FP_EXCEPT_IMP 4
/* Exception type (used by fpsetmask() et al.) */
typedef int fp_except;
#define FP_X_INV 0x01 /* invalid operation exception */
#define FP_X_DZ 0x02 /* divide-by-zero exception */
#define FP_X_OFL 0x04 /* overflow exception */
#define FP_X_UFL 0x08 /* underflow exception */
#define FP_X_IMP 0x10 /* imprecise (loss of precision; "inexact") */
/* Bit defines for fp_except */
#define FP_X_INV (1 << FP_EXCEPT_INV) /* invalid operation exception */
#define FP_X_DZ (1 << FP_EXCEPT_DZ) /* divide-by-zero exception */
#define FP_X_OFL (1 << FP_EXCEPT_OFL) /* overflow exception */
#define FP_X_UFL (1 << FP_EXCEPT_UFL) /* underflow exception */
#define FP_X_IMP (1 << FP_EXCEPT_IMP) /* imprecise (loss of precision; "inexact") */
/* Rounding modes */
typedef enum {
FP_RN=0, /* round to nearest representable number */