binutils-gdb/opcodes/w65-dis.c

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