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      intNN_t    Signed type of the given bit size
  31      uintNN_t   The corresponding unsigned type
  32
  33    SIZES
  34
  35      *NN        Size based on the number of bits
  36      *_NN       Size according to the number of bytes
  37      *_word     Size based on the target architecture's word
  38                 word size (32/64 bits)
  39      *_cell     Size based on the target architecture's
  40                 IEEE 1275 cell size (almost always 32 bits)
  41
  42 */
  43
  44
  45 /* This must come before any other includes.  */
  46 #include "defs.h"
  47
  48 #include <stdint.h>
  49
  50 /* byte based */
  51 typedef int8_t signed_1;
  52 typedef int16_t signed_2;
  53 typedef int32_t signed_4;
  54 typedef int64_t signed_8;
  55
  56 typedef uint8_t unsigned_1;
  57 typedef uint16_t unsigned_2;
  58 typedef uint32_t unsigned_4;
  59 typedef uint64_t unsigned_8;
  60
  61
  62 /* for general work, the following are defined */
  63 /* unsigned: >= 32 bits */
  64 /* signed:   >= 32 bits */
  65 /* long:     >= 32 bits, sign undefined */
  66 /* int:      small indicator */
  67
  68 /* target architecture based */
  69 #if (WITH_TARGET_WORD_BITSIZE == 64)
  70 typedef uint64_t unsigned_word;
  71 typedef int64_t signed_word;
  72 #else
  73 typedef uint32_t unsigned_word;
  74 typedef int32_t signed_word;
  75 #endif
  76
  77
  78 /* Other instructions */
  79 typedef uint32_t instruction_word;
  80
  81 /* IEEE 1275 cell size - only support 32bit mode at present */
  82 typedef uint32_t unsigned_cell;
  83 typedef int32_t signed_cell;
  84
  85 #endif /* _WORDS_H_ */