OpenCores
URL https://opencores.org/ocsvn/openrisc_me/openrisc_me/trunk

Subversion Repositories openrisc_me

[/] [openrisc/] [trunk/] [gnu-src/] [gdb-7.2/] [include/] [opcode/] [moxie.h] - Blame information for rev 330

Details | Compare with Previous | View Log

Line No. Rev Author Line
1 330 jeremybenn
/* Definitions for decoding the moxie opcode table.
2
   Copyright 2009 Free Software Foundation, Inc.
3
   Contributed by Anthony Green (green@moxielogic.com).
4
 
5
   This program is free software; you can redistribute it and/or modify
6
   it under the terms of the GNU General Public License as published by
7
   the Free Software Foundation; either version 3 of the License, or
8
   (at your option) any later version.
9
 
10
   This program is distributed in the hope that it will be useful,
11
   but WITHOUT ANY WARRANTY; without even the implied warranty of
12
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13
   GNU General Public License for more details.
14
 
15
   You should have received a copy of the GNU General Public License
16
   along with this program; if not, write to the Free Software
17
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
18
   02110-1301, USA.  */
19
 
20
/* Form 1 instructions come in different flavors:
21
 
22
    Some have no arguments                          (MOXIE_F1_NARG)
23
    Some only use the A operand                     (MOXIE_F1_A)
24
    Some use A and B registers                      (MOXIE_F1_AB)
25
    Some use A and consume a 4 byte immediate value (MOXIE_F1_A4)
26
    Some use just a 4 byte immediate value          (MOXIE_F1_4)
27
    Some use just a 4 byte memory address           (MOXIE_F1_M)
28
    Some use B and an indirect A                    (MOXIE_F1_AiB)
29
    Some use A and an indirect B                    (MOXIE_F1_ABi)
30
    Some consume a 4 byte immediate value and use X (MOXIE_F1_4A)
31
    Some use B and an indirect A plus 4 bytes       (MOXIE_F1_AiB4)
32
    Some use A and an indirect B plus 4 bytes       (MOXIE_F1_ABi4)
33
 
34
  Form 2 instructions also come in different flavors:
35
 
36
    Some have no arguments                          (MOXIE_F2_NARG)
37
    Some use the A register and an 8-bit value      (MOXIE_F2_A8V)
38
 
39
  Form 3 instructions also come in different flavors:
40
 
41
    Some have no arguments                          (MOXIE_F3_NARG)
42
    Some have a 10-bit PC relative operand          (MOXIE_F3_PCREL).  */
43
 
44
#define MOXIE_F1_NARG 0x100
45
#define MOXIE_F1_A    0x101
46
#define MOXIE_F1_AB   0x102
47
/* #define MOXIE_F1_ABC  0x103 */
48
#define MOXIE_F1_A4   0x104
49
#define MOXIE_F1_4    0x105
50
#define MOXIE_F1_AiB  0x106
51
#define MOXIE_F1_ABi  0x107
52
#define MOXIE_F1_4A   0x108
53
#define MOXIE_F1_AiB4 0x109
54
#define MOXIE_F1_ABi4 0x10a
55
#define MOXIE_F1_M    0x10b
56
 
57
#define MOXIE_F2_NARG 0x200
58
#define MOXIE_F2_A8V  0x201
59
 
60
#define MOXIE_F3_NARG  0x300
61
#define MOXIE_F3_PCREL 0x301
62
 
63
typedef struct moxie_opc_info_t
64
{
65
  short         opcode;
66
  unsigned      itype;
67
  const char *  name;
68
} moxie_opc_info_t;
69
 
70
extern const moxie_opc_info_t moxie_form1_opc_info[64];
71
extern const moxie_opc_info_t moxie_form2_opc_info[4];
72
extern const moxie_opc_info_t moxie_form3_opc_info[16];

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.