mirror of git://sourceware.org/git/glibc.git
2005-06-13 Philip Blundell <philb@gnu.org>
Patch from addsub@eyou.com: * sysdeps/arm/ieee754.h: Deleted. * sysdeps/arm/gmp-mparam.h: Support VFP and big endian. * sysdeps/arm/bits/endian.h: Likewise.
This commit is contained in:
Phil Blundell
parent
19f2e4ebef
commit
3bdeb53ad6
|
|
@ -1,3 +1,10 @@
|
||||||
|
2005-06-13 Philip Blundell <philb@gnu.org>
|
||||||
|
|
||||||
|
Patch from addsub@eyou.com:
|
||||||
|
* sysdeps/arm/ieee754.h: Deleted.
|
||||||
|
* sysdeps/arm/gmp-mparam.h: Support VFP and big endian.
|
||||||
|
* sysdeps/arm/bits/endian.h: Likewise.
|
||||||
|
|
||||||
2005-06-11 Phil Blundell <pb@reciva.com>
|
2005-06-11 Phil Blundell <pb@reciva.com>
|
||||||
|
|
||||||
* sysdeps/arm/init-first.c: Deleted.
|
* sysdeps/arm/init-first.c: Deleted.
|
||||||
|
|
|
||||||
|
|
@ -1,12 +1,19 @@
|
||||||
/* ARM is (usually) little-endian but with a big-endian FPU. */
|
|
||||||
|
|
||||||
#ifndef _ENDIAN_H
|
#ifndef _ENDIAN_H
|
||||||
# error "Never use <bits/endian.h> directly; include <endian.h> instead."
|
# error "Never use <bits/endian.h> directly; include <endian.h> instead."
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
|
/* ARM can be either big or little endian. */
|
||||||
#ifdef __ARMEB__
|
#ifdef __ARMEB__
|
||||||
#define __BYTE_ORDER __BIG_ENDIAN
|
#define __BYTE_ORDER __BIG_ENDIAN
|
||||||
#else
|
#else
|
||||||
#define __BYTE_ORDER __LITTLE_ENDIAN
|
#define __BYTE_ORDER __LITTLE_ENDIAN
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
|
/* FPA floating point units are always big-endian, irrespective of the
|
||||||
|
CPU endianness. VFP floating point units use the same endianness
|
||||||
|
as the rest of the system. */
|
||||||
|
#ifdef __VFP_FP__
|
||||||
|
#define __FLOAT_WORD_ORDER __BYTE_ORDER
|
||||||
|
#else
|
||||||
#define __FLOAT_WORD_ORDER __BIG_ENDIAN
|
#define __FLOAT_WORD_ORDER __BIG_ENDIAN
|
||||||
|
#endif
|
||||||
|
|
|
||||||
|
|
@ -1,6 +1,6 @@
|
||||||
/* gmp-mparam.h -- Compiler/machine parameter header file.
|
/* gmp-mparam.h -- Compiler/machine parameter header file.
|
||||||
|
|
||||||
Copyright (C) 1991, 1993, 1994, 1995 Free Software Foundation, Inc.
|
Copyright (C) 1991, 1993, 1994, 1995, 2005 Free Software Foundation, Inc.
|
||||||
|
|
||||||
This file is part of the GNU MP Library.
|
This file is part of the GNU MP Library.
|
||||||
|
|
||||||
|
|
@ -26,5 +26,13 @@ MA 02111-1307, USA. */
|
||||||
#define BITS_PER_SHORTINT 16
|
#define BITS_PER_SHORTINT 16
|
||||||
#define BITS_PER_CHAR 8
|
#define BITS_PER_CHAR 8
|
||||||
|
|
||||||
#define IEEE_DOUBLE_BIG_ENDIAN 0
|
#if defined(__ARMEB__)
|
||||||
#define IEEE_DOUBLE_MIXED_ENDIAN 1
|
# define IEEE_DOUBLE_MIXED_ENDIAN 0
|
||||||
|
# define IEEE_DOUBLE_BIG_ENDIAN 1
|
||||||
|
#elif defined(__VFP_FP__)
|
||||||
|
# define IEEE_DOUBLE_MIXED_ENDIAN 0
|
||||||
|
# define IEEE_DOUBLE_BIG_ENDIAN 0
|
||||||
|
#else
|
||||||
|
# define IEEE_DOUBLE_BIG_ENDIAN 0
|
||||||
|
# define IEEE_DOUBLE_MIXED_ENDIAN 1
|
||||||
|
#endif
|
||||||
|
|
|
||||||
|
|
@ -1,115 +0,0 @@
|
||||||
/* Copyright (C) 1992, 1995, 1996, 1998 Free Software Foundation, Inc.
|
|
||||||
This file is part of the GNU C Library.
|
|
||||||
|
|
||||||
The GNU C Library is free software; you can redistribute it and/or
|
|
||||||
modify it under the terms of the GNU Lesser General Public
|
|
||||||
License as published by the Free Software Foundation; either
|
|
||||||
version 2.1 of the License, or (at your option) any later version.
|
|
||||||
|
|
||||||
The GNU C Library is distributed in the hope that it will be useful,
|
|
||||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
||||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
||||||
Lesser General Public License for more details.
|
|
||||||
|
|
||||||
You should have received a copy of the GNU Lesser General Public
|
|
||||||
License along with the GNU C Library; if not, write to the Free
|
|
||||||
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
||||||
02111-1307 USA. */
|
|
||||||
|
|
||||||
#ifndef _IEEE754_H
|
|
||||||
|
|
||||||
#define _IEEE754_H 1
|
|
||||||
#include <features.h>
|
|
||||||
|
|
||||||
#include <endian.h>
|
|
||||||
|
|
||||||
__BEGIN_DECLS
|
|
||||||
|
|
||||||
union ieee754_float
|
|
||||||
{
|
|
||||||
float f;
|
|
||||||
|
|
||||||
/* This is the IEEE 754 single-precision format. */
|
|
||||||
struct
|
|
||||||
{
|
|
||||||
unsigned int mantissa:23;
|
|
||||||
unsigned int exponent:8;
|
|
||||||
unsigned int negative:1;
|
|
||||||
} ieee;
|
|
||||||
|
|
||||||
/* This format makes it easier to see if a NaN is a signalling NaN. */
|
|
||||||
struct
|
|
||||||
{
|
|
||||||
unsigned int mantissa:22;
|
|
||||||
unsigned int quiet_nan:1;
|
|
||||||
unsigned int exponent:8;
|
|
||||||
unsigned int negative:1;
|
|
||||||
} ieee_nan;
|
|
||||||
};
|
|
||||||
|
|
||||||
#define IEEE754_FLOAT_BIAS 0x7f /* Added to exponent. */
|
|
||||||
|
|
||||||
|
|
||||||
union ieee754_double
|
|
||||||
{
|
|
||||||
double d;
|
|
||||||
|
|
||||||
/* This is the IEEE 754 double-precision format. */
|
|
||||||
struct
|
|
||||||
{
|
|
||||||
unsigned int mantissa0:20;
|
|
||||||
unsigned int exponent:11;
|
|
||||||
unsigned int negative:1;
|
|
||||||
unsigned int mantissa1:32;
|
|
||||||
} ieee;
|
|
||||||
|
|
||||||
/* This format makes it easier to see if a NaN is a signalling NaN. */
|
|
||||||
struct
|
|
||||||
{
|
|
||||||
unsigned int mantissa0:19;
|
|
||||||
unsigned int quiet_nan:1;
|
|
||||||
unsigned int exponent:11;
|
|
||||||
unsigned int negative:1;
|
|
||||||
unsigned int mantissa1:32;
|
|
||||||
} ieee_nan;
|
|
||||||
};
|
|
||||||
|
|
||||||
#define IEEE754_DOUBLE_BIAS 0x3ff /* Added to exponent. */
|
|
||||||
|
|
||||||
|
|
||||||
/* The following two structures are correct for `new' floating point systems but
|
|
||||||
wrong for the old FPPC. The only solution seems to be to avoid their use on
|
|
||||||
old hardware. */
|
|
||||||
|
|
||||||
union ieee854_long_double
|
|
||||||
{
|
|
||||||
long double d;
|
|
||||||
|
|
||||||
/* This is the IEEE 854 double-extended-precision format. */
|
|
||||||
struct
|
|
||||||
{
|
|
||||||
unsigned int exponent:15;
|
|
||||||
unsigned int empty:16;
|
|
||||||
unsigned int negative:1;
|
|
||||||
unsigned int mantissa1:32;
|
|
||||||
unsigned int mantissa0:32;
|
|
||||||
} ieee;
|
|
||||||
|
|
||||||
/* This is for NaNs in the IEEE 854 double-extended-precision format. */
|
|
||||||
struct
|
|
||||||
{
|
|
||||||
unsigned int exponent:15;
|
|
||||||
unsigned int empty:16;
|
|
||||||
unsigned int negative:1;
|
|
||||||
unsigned int mantissa1:32;
|
|
||||||
unsigned int mantissa0:30;
|
|
||||||
unsigned int quiet_nan:1;
|
|
||||||
unsigned int one:1;
|
|
||||||
} ieee_nan;
|
|
||||||
};
|
|
||||||
|
|
||||||
#define IEEE854_LONG_DOUBLE_BIAS 0x3fff
|
|
||||||
|
|
||||||
__END_DECLS
|
|
||||||
|
|
||||||
#endif /* ieee754.h */
|
|
||||||
Loading…
Reference in New Issue