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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-7.1/] [opcodes/] [w65-dis.c] - Blame information for rev 227

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1 227 jeremybenn
/* Disassemble WDC 65816 instructions.
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   Copyright 1995, 1998, 2000, 2001, 2002, 2005, 2007
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   Free Software Foundation, Inc.
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   This file is part of the GNU opcodes library.
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   This library is free software; you can redistribute it and/or modify
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   it under the terms of the GNU General Public License as published by
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   the Free Software Foundation; either version 3, or (at your option)
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   any later version.
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   It is distributed in the hope that it will be useful, but WITHOUT
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   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
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   License for more details.
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   You should have received a copy of the GNU General Public License
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   along with this program; if not, write to the Free Software
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   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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   MA 02110-1301, USA.  */
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#include <stdio.h>
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#include "sysdep.h"
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#define STATIC_TABLE
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#define DEFINE_TABLE
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#include "w65-opc.h"
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#include "dis-asm.h"
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static fprintf_ftype fpr;
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static void *stream;
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static struct disassemble_info *local_info;
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static void
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print_operand (int lookup, char *format, int *args)
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{
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  int val;
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  int c;
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  while (*format)
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    {
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      switch (c = *format++)
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        {
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        case '$':
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          val = args[(*format++) - '0'];
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          if (lookup)
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            local_info->print_address_func (val, local_info);
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          else
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            fpr (stream, "0x%x", val);
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          break;
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        default:
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          fpr (stream, "%c", c);
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          break;
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        }
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    }
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}
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int
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print_insn_w65 (bfd_vma memaddr, struct disassemble_info *info)
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{
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  int status = 0;
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  unsigned char insn[4];
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  const struct opinfo *op;
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  int i;
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  int X = 0;
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  int M = 0;
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  int args[2];
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  stream = info->stream;
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  fpr = info->fprintf_func;
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  local_info = info;
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  for (i = 0; i < 4 && status == 0; i++)
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    status = info->read_memory_func (memaddr + i, insn + i, 1, info);
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  for (op = optable; op->val != insn[0]; op++)
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    ;
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  fpr (stream, "%s", op->name);
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  /* Prepare all the posible operand values.  */
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  {
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    int size = 1;
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    int asR_W65_ABS8 = insn[1];
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    int asR_W65_ABS16 = (insn[2] << 8) + asR_W65_ABS8;
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    int asR_W65_ABS24 = (insn[3] << 16) + asR_W65_ABS16;
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    int asR_W65_PCR8 = ((char) (asR_W65_ABS8)) + memaddr + 2;
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    int asR_W65_PCR16 = ((short) (asR_W65_ABS16)) + memaddr + 3;
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    switch (op->amode)
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      {
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        DISASM ();
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      }
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    return size;
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  }
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}

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