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/* Disassemble WDC 65816 instructions.
Copyright (C) 1995 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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.
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include <stdio.h>
#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;
#if 0
static char *lname[] = {"r0","r1","r2","r3","r4","r5","r6","r7","s0"};
static char *findname (val)
unsigned int val;
{
if (val >= 0x10 && val <= 0x20)
return lname[(val - 0x10) / 2];
return 0;
}
#endif
static void
print_operand (lookup, format, args)
int lookup;
char *format;
unsigned int *args;
{
int val;
int c;
char *name;
while (*format)
{
switch ( c = *format++)
{
case '$':
val = args[(*format++) - '0'];
if (lookup)
{
#if 0
name = findname(val);
if (name)
fpr(stream, "%s", name);
else
#endif
local_info->print_address_func (val, local_info);
}
else
fpr (stream, "0x%x", val);
break;
default:
fpr(stream,"%c", c);
break;
}
}
}
int
print_insn_w65(memaddr, info)
bfd_vma memaddr;
struct disassemble_info *info;
{
int status = 0;
unsigned char insn[4];
register struct opinfo *op;
int i;
int X =0;
int M = 0;
int args[2];
stream = info->stream;
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);
}
for (op = optable; op->val != insn[0]; op++)
;
fpr(stream,"%s", op->name);
/* Prepare all the posible operand values */
{
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;
switch (op->amode) {
DISASM();
}
return size;
}
}
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