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epoc32/include/libc/machine/ieeefp.h
author William Roberts <williamr@symbian.org>
Wed, 31 Mar 2010 12:27:01 +0100
branchSymbian2
changeset 3 e1b950c65cb4
parent 0 061f57f2323e
child 4 837f303aceeb
permissions -rw-r--r--
Attempt to represent the S^2->S^3 header reorganisation as a series of "hg rename" operations 
     1 /*

     2 * Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of the License "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 *

    16 */

    17 

    18 

    19 

    20 

    21 

    22 

    23 /**

    24  @file

    25  @publishedAll

    26  @released

    27 */

    28 

    29 #ifndef __IEEE_BIG_ENDIAN

    30 #ifndef __IEEE_LITTLE_ENDIAN

    31 

    32 /**

    33 EPOC safety net - Check various EPOC defines to ensure that

    34 we get an appropriate endianness choice

    35 */

    36 #if (defined(__WINS__) || defined(__MX86__)) && !defined(__i386__)

    37 #define __i386__

    38 #elif defined(__MARM__) && !defined(__arm__)

    39 #define __arm__

    40 #endif

    41 

    42 #ifdef __arm__

    43 	#ifdef __EABI__

    44 	/**

    45 	EABI supports the VFP specification, where the ordering of the words

    46 	matches the endianness.

    47 	*/

    48 	#define __IEEE_LITTLE_ENDIAN

    49 #else

    50 	/** 

    51 	Pre-VFP, ARM used the big endian ordering of the words, regardless of

    52 	the endianess. 

    53 	*/

    54 	#define __IEEE_BIG_ENDIAN

    55 	#endif

    56 #endif

    57 

    58 #ifdef __hppa__

    59 

    60 #define __IEEE_BIG_ENDIAN

    61 #endif

    62 

    63 #ifdef __sparc__

    64 

    65 #define __IEEE_BIG_ENDIAN

    66 #endif

    67 

    68 #if defined(__m68k__) || defined(__mc68000__)

    69 

    70 #define __IEEE_BIG_ENDIAN

    71 #endif

    72 

    73 #if defined (__H8300__) || defined (__H8300H__)

    74 

    75 #define __IEEE_BIG_ENDIAN

    76 #define __SMALL_BITFIELDS

    77 #define _DOUBLE_IS_32BITS

    78 #endif

    79 

    80 #ifdef __H8500__

    81 

    82 #define __IEEE_BIG_ENDIAN

    83 #define __SMALL_BITFIELDS

    84 #define _DOUBLE_IS_32BITS

    85 #endif

    86 

    87 #ifdef __sh__

    88 #ifdef __LITTLE_ENDIAN__

    89 

    90 #define __IEEE_LITTLE_ENDIAN

    91 #else

    92 #define __IEEE_BIG_ENDIAN

    93 #endif

    94 #ifdef __SH3E__

    95 

    96 #define _DOUBLE_IS_32BITS

    97 #endif

    98 #endif

    99 

   100 #ifdef _AM29K

   101 

   102 #define __IEEE_BIG_ENDIAN

   103 #endif

   104 

   105 /* Added "&& !defined(__arm__)" to avoid the duplicate definition of the

   106    __ieee_[float|double]_shape_type structures in stdlib\LINC\IEEEFP.h 

   107    conditionally compiled using the __IEEE_LITTLE_ENDIAN && __IEEE_BIG_ENDIAN 

   108    in GCCXML builds. This is a work around as we can't get gccxml to stop 

   109    defining __i386__ as it's defined in the "<built-in>" header file of the 

   110    compiler.

   111 */

   112 #if defined(__i386__) && !defined(__arm__)

   113 

   114 #define __IEEE_LITTLE_ENDIAN

   115 #endif

   116 

   117 #ifdef __i960__

   118 

   119 #define __IEEE_LITTLE_ENDIAN

   120 #endif

   121 

   122 #ifdef __MIPSEL__

   123 

   124 #define __IEEE_LITTLE_ENDIAN

   125 #endif

   126 #ifdef __MIPSEB__

   127 

   128 #define __IEEE_BIG_ENDIAN

   129 #endif

   130 

   131 /**

   132 necv70 was __IEEE_LITTLE_ENDIAN. 

   133 */

   134 

   135 #ifdef __W65__

   136 

   137 #define __IEEE_LITTLE_ENDIAN

   138 #define __SMALL_BITFIELDS

   139 #define _DOUBLE_IS_32BITS

   140 #endif

   141 

   142 #if defined(__Z8001__) || defined(__Z8002__)

   143 

   144 #define __IEEE_BIG_ENDIAN

   145 #endif

   146 

   147 #ifdef __m88k__

   148 

   149 #define __IEEE_BIG_ENDIAN

   150 #endif

   151 

   152 #ifdef __v800

   153 

   154 #define __IEEE_LITTLE_ENDIAN

   155 #endif

   156 

   157 #ifdef __PPC__

   158 #ifdef _BIG_ENDIAN

   159 

   160 #define __IEEE_BIG_ENDIAN

   161 #else

   162 

   163 #define __IEEE_LITTLE_ENDIAN

   164 #endif

   165 #endif

   166 

   167 #ifdef __mcore__

   168 

   169 #define __IEEE_LITTLE_ENDIAN	/* always little-endian M*Core for EPOC */

   170 #endif

   171 

   172 #ifndef __IEEE_BIG_ENDIAN

   173 #ifndef __IEEE_LITTLE_ENDIAN

   174 #error Endianess not declared!!

   175 #endif /* not __IEEE_LITTLE_ENDIAN */

   176 #endif /* not __IEEE_BIG_ENDIAN */

   177 

   178 #endif /* not __IEEE_LITTLE_ENDIAN */

   179 #endif /* not __IEEE_BIG_ENDIAN */
test