sim/ppc/words.h

   1 /* This file is part of psim (model of the PowerPC(tm) architecture)
   2
   3    Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>
   4
   5    This library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Library General Public License
   7    as published by the Free Software Foundation; either version 3 of
   8    the License, or (at your option) any later version.
   9
  10    This library is distributed in the hope that it will be useful, but
  11    WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Library General Public License for more details.
  14
  15    You should have received a copy of the GNU Library General Public
  16    License along with this library; if not, see <http://www.gnu.org/licenses/>.
  17
  18    --
  19
  20    PowerPC is a trademark of International Business Machines Corporation. */
  21
  22
  23 /* Basic type sizes for the PowerPC */
  24
  25 #ifndef _WORDS_H_
  26 #define _WORDS_H_
  27
  28 /* TYPES:
  29
  30      natural*   sign determined by host
  31      signed*    signed type of the given size
  32      unsigned*  The corresponding insigned type
  33
  34    SIZES
  35
  36      *NN        Size based on the number of bits
  37      *_NN       Size according to the number of bytes
  38      *_word     Size based on the target architecture's word
  39                 word size (32/64 bits)
  40      *_cell     Size based on the target architecture's
  41                 IEEE 1275 cell size (almost always 32 bits)
  42
  43 */
  44
  45
  46 #ifdef HAVE_CONFIG_H
  47 #include "config.h"
  48 #endif
  49
  50 /* bit based */
  51 typedef char natural8;
  52 typedef short natural16;
  53 typedef int natural32;
  54
  55 typedef signed char signed8;
  56 typedef signed short signed16;
  57 typedef signed int signed32;
  58
  59 typedef unsigned char unsigned8;
  60 typedef unsigned short unsigned16;
  61 typedef unsigned int unsigned32;
  62
  63 #ifdef __GNUC__
  64 typedef long long natural64;
  65 typedef signed long long signed64;
  66 typedef unsigned long long unsigned64;
  67 #endif
  68
  69 #ifdef _MSC_VER
  70 typedef __int64 natural64;
  71 typedef signed __int64 signed64;
  72 typedef unsigned __int64 unsigned64;
  73 #endif
  74
  75
  76 /* byte based */
  77 typedef natural8 natural_1;
  78 typedef natural16 natural_2;
  79 typedef natural32 natural_4;
  80 typedef natural64 natural_8;
  81
  82 typedef signed8 signed_1;
  83 typedef signed16 signed_2;
  84 typedef signed32 signed_4;
  85 typedef signed64 signed_8;
  86
  87 typedef unsigned8 unsigned_1;
  88 typedef unsigned16 unsigned_2;
  89 typedef unsigned32 unsigned_4;
  90 typedef unsigned64 unsigned_8;
  91
  92
  93 /* for general work, the following are defined */
  94 /* unsigned: >= 32 bits */
  95 /* signed:   >= 32 bits */
  96 /* long:     >= 32 bits, sign undefined */
  97 /* int:      small indicator */
  98
  99 /* target architecture based */
 100 #if (WITH_TARGET_WORD_BITSIZE == 64)
 101 typedef natural64 natural_word;
 102 typedef unsigned64 unsigned_word;
 103 typedef signed64 signed_word;
 104 #else
 105 typedef natural32 natural_word;
 106 typedef unsigned32 unsigned_word;
 107 typedef signed32 signed_word;
 108 #endif
 109
 110
 111 /* Other instructions */
 112 typedef unsigned32 instruction_word;
 113
 114 /* IEEE 1275 cell size - only support 32bit mode at present */
 115 typedef natural32 natural_cell;
 116 typedef unsigned32 unsigned_cell;
 117 typedef signed32 signed_cell;
 118
 119 #endif /* _WORDS_H_ */