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99 lines
2.3 KiB
C
99 lines
2.3 KiB
C
/* Disassemble WDC 65816 instructions.
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Copyright (C) 1995-2017 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 "sysdep.h"
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#include <stdio.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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