Commit | Line | Data |
---|---|---|
20135e4c | 1 | /* Definitions for decoding the moxie opcode table. |
82704155 | 2 | Copyright (C) 2009-2019 Free Software Foundation, Inc. |
20135e4c NC |
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) | |
0e7c7f11 | 27 | Some use just a 4 byte memory address (MOXIE_F1_M) |
20135e4c NC |
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) | |
bffb6004 AG |
31 | Some use B and an indirect A plus 2 byte offset (MOXIE_F1_AiB2) |
32 | Some use A and an indirect B plus 2 byte offset (MOXIE_F1_ABi2) | |
20135e4c NC |
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 | ||
f865a31d AG |
41 | Some have no arguments (MOXIE_F3_NARG) |
42 | Some have a 10-bit PC relative operand (MOXIE_F3_PCREL). */ | |
20135e4c NC |
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 | |
bffb6004 AG |
53 | #define MOXIE_F1_AiB2 0x109 |
54 | #define MOXIE_F1_ABi2 0x10a | |
0e7c7f11 | 55 | #define MOXIE_F1_M 0x10b |
20135e4c NC |
56 | |
57 | #define MOXIE_F2_NARG 0x200 | |
58 | #define MOXIE_F2_A8V 0x201 | |
59 | ||
f865a31d AG |
60 | #define MOXIE_F3_NARG 0x300 |
61 | #define MOXIE_F3_PCREL 0x301 | |
20135e4c | 62 | |
1415a2a7 AG |
63 | #define MOXIE_BAD 0x400 |
64 | ||
20135e4c NC |
65 | typedef struct moxie_opc_info_t |
66 | { | |
67 | short opcode; | |
68 | unsigned itype; | |
69 | const char * name; | |
70 | } moxie_opc_info_t; | |
71 | ||
1415a2a7 | 72 | extern const moxie_opc_info_t moxie_form1_opc_info[128]; |
20135e4c | 73 | extern const moxie_opc_info_t moxie_form2_opc_info[4]; |
f865a31d | 74 | extern const moxie_opc_info_t moxie_form3_opc_info[16]; |