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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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;
- }
-
- }
-