| /* Disassemble WDC 65816 instructions. |
| Copyright 1995, 1998, 2000 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> |
| #include "sysdep.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; |
| |
| 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; |
| } |
| } |