1 /* Disassemble WDC 65816 instructions. 2 Copyright (C) 1995-2016 Free Software Foundation, Inc. 3 4 This file is part of the GNU opcodes library. 5 6 This library is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 3, or (at your option) 9 any later version. 10 11 It is distributed in the hope that it will be useful, but WITHOUT 12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 13 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 14 License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with this program; if not, write to the Free Software 18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 19 MA 02110-1301, USA. */ 20 21 #include "sysdep.h" 22 #include <stdio.h> 23 24 #define STATIC_TABLE 25 #define DEFINE_TABLE 26 27 #include "w65-opc.h" 28 #include "dis-asm.h" 29 30 static fprintf_ftype fpr; 31 static void *stream; 32 static struct disassemble_info *local_info; 33 34 static void 35 print_operand (int lookup, char *format, int *args) 36 { 37 int val; 38 int c; 39 40 while (*format) 41 { 42 switch (c = *format++) 43 { 44 case '$': 45 val = args[(*format++) - '0']; 46 if (lookup) 47 local_info->print_address_func (val, local_info); 48 else 49 fpr (stream, "0x%x", val); 50 51 break; 52 default: 53 fpr (stream, "%c", c); 54 break; 55 } 56 } 57 } 58 59 int 60 print_insn_w65 (bfd_vma memaddr, struct disassemble_info *info) 61 { 62 int status = 0; 63 unsigned char insn[4]; 64 const struct opinfo *op; 65 int i; 66 int X = 0; 67 int M = 0; 68 int args[2]; 69 70 stream = info->stream; 71 fpr = info->fprintf_func; 72 local_info = info; 73 74 for (i = 0; i < 4 && status == 0; i++) 75 status = info->read_memory_func (memaddr + i, insn + i, 1, info); 76 77 for (op = optable; op->val != insn[0]; op++) 78 ; 79 80 fpr (stream, "%s", op->name); 81 82 /* Prepare all the posible operand values. */ 83 { 84 int size = 1; 85 int asR_W65_ABS8 = insn[1]; 86 int asR_W65_ABS16 = (insn[2] << 8) + asR_W65_ABS8; 87 int asR_W65_ABS24 = (insn[3] << 16) + asR_W65_ABS16; 88 int asR_W65_PCR8 = ((char) (asR_W65_ABS8)) + memaddr + 2; 89 int asR_W65_PCR16 = ((short) (asR_W65_ABS16)) + memaddr + 3; 90 91 switch (op->amode) 92 { 93 DISASM (); 94 } 95 96 return size; 97 } 98 } 99
