1 /* Disassemble WDC 65816 instructions.
2 Copyright 1995, 1998, 2000, 2001, 2002, 2005, 2007
3 Free Software Foundation, Inc.
5 This file is part of the GNU opcodes library.
7 This library is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3, or (at your option)
12 It is distributed in the hope that it will be useful, but WITHOUT
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
15 License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
30 static fprintf_ftype fpr
;
32 static struct disassemble_info
*local_info
;
35 print_operand (int lookup
, char *format
, int *args
)
42 switch (c
= *format
++)
45 val
= args
[(*format
++) - '0'];
47 local_info
->print_address_func (val
, local_info
);
49 fpr (stream
, "0x%x", val
);
53 fpr (stream
, "%c", c
);
60 print_insn_w65 (bfd_vma memaddr
, struct disassemble_info
*info
)
63 unsigned char insn
[4];
64 const struct opinfo
*op
;
70 stream
= info
->stream
;
71 fpr
= info
->fprintf_func
;
74 for (i
= 0; i
< 4 && status
== 0; i
++)
75 status
= info
->read_memory_func (memaddr
+ i
, insn
+ i
, 1, info
);
77 for (op
= optable
; op
->val
!= insn
[0]; op
++)
80 fpr (stream
, "%s", op
->name
);
82 /* Prepare all the posible operand values. */
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;
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