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 2 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, write to the Free Software
  17    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18
  19    --
  20
  21    PowerPC is a trademark of International Business Machines Corporation. */
  22
  23
  24 /* Basic type sizes for the PowerPC */
  25
  26 #ifndef _WORDS_H_
  27 #define _WORDS_H_
  28
  29 /* TYPES:
  30
  31      natural*   sign determined by host
  32      signed*    signed type of the given size
  33      unsigned*  The corresponding insigned type
  34
  35    SIZES
  36
  37      *NN        Size based on the number of bits
  38      *_NN       Size according to the number of bytes
  39      *_word     Size based on the target architecture's word
  40                 word size (32/64 bits)
  41      *_cell     Size based on the target architecture's
  42                 IEEE 1275 cell size (almost always 32 bits)
  43
  44 */
  45
  46
  47 /* bit based */
  48 typedef char natural8;
  49 typedef short natural16;
  50 typedef long natural32;
  51
  52 typedef signed char signed8;
  53 typedef signed short signed16;
  54 typedef signed long signed32;
  55
  56 typedef unsigned char unsigned8;
  57 typedef unsigned short unsigned16;
  58 typedef unsigned long unsigned32;
  59
  60 #ifdef __GNUC__
  61 typedef long long natural64;
  62 typedef signed long long signed64;
  63 typedef unsigned long long unsigned64;
  64 #endif
  65
  66 #ifdef _MSC_VER
  67 typedef __int64 natural64;
  68 typedef signed __int64 signed64;
  69 typedef unsigned __int64 unsigned64;
  70 #endif
  71
  72
  73 /* byte based */
  74 typedef natural8 natural_1;
  75 typedef natural16 natural_2;
  76 typedef natural32 natural_4;
  77 typedef natural64 natural_8;
  78
  79 typedef signed8 signed_1;
  80 typedef signed16 signed_2;
  81 typedef signed32 signed_4;
  82 typedef signed64 signed_8;
  83
  84 typedef unsigned8 unsigned_1;
  85 typedef unsigned16 unsigned_2;
  86 typedef unsigned32 unsigned_4;
  87 typedef unsigned64 unsigned_8;
  88
  89
  90 /* for general work, the following are defined */
  91 /* unsigned: >= 32 bits */
  92 /* signed:   >= 32 bits */
  93 /* long:     >= 32 bits, sign undefined */
  94 /* int:      small indicator */
  95
  96 /* target architecture based */
  97 #if (WITH_TARGET_WORD_BITSIZE == 64)
  98 typedef natural64 natural_word;
  99 typedef unsigned64 unsigned_word;
 100 typedef signed64 signed_word;
 101 #else
 102 typedef natural32 natural_word;
 103 typedef unsigned32 unsigned_word;
 104 typedef signed32 signed_word;
 105 #endif
 106
 107
 108 /* Other instructions */
 109 typedef unsigned32 instruction_word;
 110
 111 /* IEEE 1275 cell size - only support 32bit mode at present */
 112 typedef natural32 natural_cell;
 113 typedef unsigned32 unsigned_cell;
 114 typedef signed32 signed_cell;
 115
 116 #endif /* _WORDS_H_ */