opcodes/arm-opc.h

   1 /* Disassembler definitions for ARM.
   2
   3    Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
   4    2004 Free Software Foundation, Inc.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2, or (at your option)
   9    any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  19
  20
  21 struct arm_opcode
  22 {
  23   unsigned long arch;           /* Architecture defining this insn.  */
  24   unsigned long value, mask;    /* Recognise insn if (op&mask)==value.  */
  25   char *assembler;              /* How to disassemble this insn.  */
  26 };
  27
  28 struct thumb_opcode
  29 {
  30   unsigned long arch;           /* Architecture defining this insn.  */
  31   unsigned short value, mask;   /* Recognise insn if (op&mask)==value.  */
  32   char * assembler;             /* How to disassemble this insn.  */
  33 };
  34
  35
  36 #define BDISP(x) ((((x) & 0xffffff) ^ 0x800000) - 0x800000) /* 26 bit */
  37
  38 #define BDISP23(x) ((((((x) & 0x07ff) << 11) | (((x) & 0x07ff0000) >> 16)) \
  39                      ^ 0x200000) - 0x200000) /* 23bit */
  40