gdb/m68k-pinsn.c

   1 /* Print Motorola 68k instructions for GDB, the GNU debugger.
   2    Copyright 1986, 1987, 1989, 1991, 1992, 1993 Free Software Foundation, Inc.
   3
   4 This file is part of GDB.
   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 of the License, or
   9 (at your option) 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., 675 Mass Ave, Cambridge, MA 02139, USA.  */
  19
  20 #include "defs.h"
  21 #include "dis-asm.h"
  22
  23 /* 68k instructions are never longer than this many bytes.  */
  24 #define MAXLEN 22
  25 \f
  26 /* Print the m68k instruction at address MEMADDR in debugged memory,
  27    on STREAM.  Returns length of the instruction, in bytes.  */
  28
  29 int
  30 print_insn (memaddr, stream)
  31      CORE_ADDR memaddr;
  32      FILE *stream;
  33 {
  34   unsigned char buffer[MAXLEN];
  35   register int i;
  36   register unsigned char *p;
  37   register char *d;
  38   register int bestmask;
  39   int best;
  40   disassemble_info info;
  41
  42   GDB_INIT_DISASSEMBLE_INFO(info, stream);
  43
  44   read_memory (memaddr, (char *) buffer, MAXLEN);
  45   return print_insn_m68k (memaddr, buffer, &info);
  46 }