1/* PDP-11 opcde list.
2   Copyright 2001, 2002 Free Software Foundation, Inc.
3
4This file is part of GDB and GAS.
5
6GDB and GAS are free software; you can redistribute it and/or modify
7it under the terms of the GNU General Public License as published by
8the Free Software Foundation; either version 1, or (at your option)
9any later version.
10
11GDB and GAS are distributed in the hope that it will be useful,
12but WITHOUT ANY WARRANTY; without even the implied warranty of
13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14GNU General Public License for more details.
15
16You should have received a copy of the GNU General Public License
17along with GDB or GAS; see the file COPYING.  If not, write to
18the Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
19
20/*
21 * PDP-11 opcode types.
22 */
23
24#define PDP11_OPCODE_NO_OPS	 0
25#define PDP11_OPCODE_REG	 1	/* register */
26#define PDP11_OPCODE_OP		 2	/* generic operand */
27#define PDP11_OPCODE_REG_OP	 3	/* register and generic operand */
28#define PDP11_OPCODE_REG_OP_REV	 4	/* register and generic operand,
29					   reversed syntax */
30#define PDP11_OPCODE_AC_FOP	 5	/* fpu accumulator and generic float
31					   operand */
32#define PDP11_OPCODE_OP_OP	 6	/* two generic operands */
33#define PDP11_OPCODE_DISPL	 7	/* pc-relative displacement */
34#define PDP11_OPCODE_REG_DISPL	 8	/* redister and pc-relative
35					   displacement */
36#define PDP11_OPCODE_IMM8	 9	/* 8-bit immediate */
37#define PDP11_OPCODE_IMM6	10	/* 6-bit immediate */
38#define PDP11_OPCODE_IMM3	11	/* 3-bit immediate */
39#define PDP11_OPCODE_ILLEGAL	12	/* illegal instruction */
40#define PDP11_OPCODE_FOP_AC	13	/* generic float argument, then fpu
41					   accumulator */
42#define PDP11_OPCODE_FOP	14	/* generic float operand */
43#define PDP11_OPCODE_AC_OP	15	/* fpu accumulator and generic int
44					   operand */
45#define PDP11_OPCODE_OP_AC	16	/* generic int argument, then fpu
46					   accumulator */
47
48/*
49 * PDP-11 instruction set extensions.
50 *
51 * Please keep the numbers low, as they are used as indices into
52 * an array.
53 */
54
55#define PDP11_NONE	 0	/* not in instruction set */
56#define PDP11_BASIC	 1	/* basic instruction set (11/20 etc) */
57#define PDP11_CSM	 2	/* commercial instruction set */
58#define PDP11_CIS	 3	/* commercial instruction set */
59#define PDP11_EIS	 4	/* extended instruction set (11/45 etc) */
60#define PDP11_FIS	 5	/* KEV11 floating-point instructions */
61#define PDP11_FPP	 6	/* FP-11 floating-point instructions */
62#define PDP11_LEIS	 7	/* limited extended instruction set
63				   (11/40 etc) */
64#define PDP11_MFPT	 8	/* move from processor type */
65#define PDP11_MPROC	 9	/* multiprocessor instructions: tstset,
66				   wrtlck */
67#define PDP11_MXPS	10	/* move from/to processor status */
68#define PDP11_SPL	11	/* set priority level */
69#define PDP11_UCODE	12	/* microcode instructions: ldub, med, xfc */
70#define PDP11_EXT_NUM	13	/* total number of extension types */
71
72struct pdp11_opcode
73{
74  const char *name;
75  int opcode;
76  int mask;
77  int type;
78  int extension;
79};
80
81extern const struct pdp11_opcode pdp11_opcodes[];
82extern const struct pdp11_opcode pdp11_aliases[];
83extern const int pdp11_num_opcodes, pdp11_num_aliases;
84
85/* end of pdp11.h */
86