StdLib/Include/Aarch64/arm-gcc.h

   1 /** @file
   2
   3   Copyright (c) 2014, ARM Limited. All rights reserved.
   4
   5   This program and the accompanying materials
   6   are licensed and made available under the terms and conditions of the BSD License
   7   which accompanies this distribution.  The full text of the license may be found at
   8   http://opensource.org/licenses/bsd-license.php
   9
  10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13 **/
  14
  15 /* $NetBSD: arm-gcc.h,v 1.4 2013/01/26 07:08:14 matt Exp $ */
  16
  17 /*
  18 -------------------------------------------------------------------------------
  19 One of the macros `BIGENDIAN' or `LITTLEENDIAN' must be defined.
  20 -------------------------------------------------------------------------------
  21 */
  22 #define LITTLEENDIAN
  23
  24 /*
  25 -------------------------------------------------------------------------------
  26 The macro `BITS64' can be defined to indicate that 64-bit integer types are
  27 supported by the compiler.
  28 -------------------------------------------------------------------------------
  29 */
  30 #define BITS64
  31
  32 /*
  33 -------------------------------------------------------------------------------
  34 Each of the following `typedef's defines the most convenient type that holds
  35 integers of at least as many bits as specified.  For example, `uint8' should
  36 be the most convenient type that can hold unsigned integers of as many as
  37 8 bits.  The `flag' type must be able to hold either a 0 or 1.  For most
  38 implementations of C, `flag', `uint8', and `int8' should all be `typedef'ed
  39 to the same as `int'.
  40 -------------------------------------------------------------------------------
  41 */
  42 typedef int flag;
  43 typedef int uint8;
  44 typedef int int8;
  45 typedef int uint16;
  46 typedef int int16;
  47 typedef unsigned int uint32;
  48 typedef signed int int32;
  49 #ifdef BITS64
  50 typedef unsigned long long int uint64;
  51 typedef signed long long int int64;
  52 #endif
  53
  54 /*
  55 -------------------------------------------------------------------------------
  56 Each of the following `typedef's defines a type that holds integers
  57 of _exactly_ the number of bits specified.  For instance, for most
  58 implementation of C, `bits16' and `sbits16' should be `typedef'ed to
  59 `unsigned short int' and `signed short int' (or `short int'), respectively.
  60 -------------------------------------------------------------------------------
  61 */
  62 typedef unsigned char bits8;
  63 typedef signed char sbits8;
  64 typedef unsigned short int bits16;
  65 typedef signed short int sbits16;
  66 typedef unsigned int bits32;
  67 typedef signed int sbits32;
  68 #ifdef BITS64
  69 typedef unsigned long long int bits64;
  70 typedef signed long long int sbits64;
  71 #endif
  72
  73 #ifdef BITS64
  74 /*
  75 -------------------------------------------------------------------------------
  76 The `LIT64' macro takes as its argument a textual integer literal and
  77 if necessary ``marks'' the literal as having a 64-bit integer type.
  78 For example, the GNU C Compiler (`gcc') requires that 64-bit literals be
  79 appended with the letters `LL' standing for `long long', which is `gcc's
  80 name for the 64-bit integer type.  Some compilers may allow `LIT64' to be
  81 defined as the identity macro:  `#define LIT64( a ) a'.
  82 -------------------------------------------------------------------------------
  83 */
  84 #define LIT64( a ) a##ULL
  85 #endif
  86
  87 /*
  88 -------------------------------------------------------------------------------
  89 The macro `INLINE' can be used before functions that should be inlined.  If
  90 a compiler does not support explicit inlining, this macro should be defined
  91 to be `static'.
  92 -------------------------------------------------------------------------------
  93 */
  94 #define INLINE static inline
  95
  96 /*
  97 -------------------------------------------------------------------------------
  98 The ARM FPA is odd in that it stores doubles high-order word first, no matter
  99 what the endianness of the CPU.  VFP is sane.
 100 -------------------------------------------------------------------------------
 101 */
 102 #if defined(SOFTFLOAT_FOR_GCC)
 103 #if defined(__VFP_FP__)
 104 #define FLOAT64_DEMANGLE(a) (a)
 105 #define FLOAT64_MANGLE(a)   (a)
 106 #else
 107 #define FLOAT64_DEMANGLE(a) (((a) << 32) | ((a) >> 32))
 108 #define FLOAT64_MANGLE(a)   FLOAT64_DEMANGLE(a)
 109 #endif
 110 #endif