1 | /* |
2 | * MicroBlaze insn decoding macros. |
3 | * |
4 | * Copyright (c) 2009 Edgar E. Iglesias <edgar.iglesias@gmail.com> |
5 | * |
6 | * This library is free software; you can redistribute it and/or |
7 | * modify it under the terms of the GNU Lesser General Public |
8 | * License as published by the Free Software Foundation; either |
9 | * version 2 of the License, or (at your option) any later version. |
10 | * |
11 | * This library is distributed in the hope that it will be useful, |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 | * Lesser General Public License for more details. |
15 | * |
16 | * You should have received a copy of the GNU Lesser General Public |
17 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
18 | */ |
19 | |
20 | #ifndef TARGET_MICROBLAZE_MICROBLAZE_DECODE_H |
21 | #define TARGET_MICROBLAZE_MICROBLAZE_DECODE_H |
22 | |
23 | /* Convenient binary macros. */ |
24 | #define HEX__(n) 0x##n##LU |
25 | #define B8__(x) ((x&0x0000000FLU)?1:0) \ |
26 | + ((x&0x000000F0LU)?2:0) \ |
27 | + ((x&0x00000F00LU)?4:0) \ |
28 | + ((x&0x0000F000LU)?8:0) \ |
29 | + ((x&0x000F0000LU)?16:0) \ |
30 | + ((x&0x00F00000LU)?32:0) \ |
31 | + ((x&0x0F000000LU)?64:0) \ |
32 | + ((x&0xF0000000LU)?128:0) |
33 | #define B8(d) ((unsigned char)B8__(HEX__(d))) |
34 | |
35 | /* Decode logic, value and mask. */ |
36 | #define DEC_ADD {B8(00000000), B8(00110001)} |
37 | #define DEC_SUB {B8(00000001), B8(00110001)} |
38 | #define DEC_AND {B8(00100001), B8(00110101)} |
39 | #define DEC_XOR {B8(00100010), B8(00110111)} |
40 | #define DEC_OR {B8(00100000), B8(00110111)} |
41 | #define DEC_BIT {B8(00100100), B8(00111111)} |
42 | #define DEC_MSR {B8(00100101), B8(00111111)} |
43 | |
44 | #define DEC_BARREL {B8(00010001), B8(00110111)} |
45 | #define DEC_MUL {B8(00010000), B8(00110111)} |
46 | #define DEC_DIV {B8(00010010), B8(00110111)} |
47 | #define DEC_FPU {B8(00010110), B8(00111111)} |
48 | |
49 | #define DEC_LD {B8(00110000), B8(00110100)} |
50 | #define DEC_ST {B8(00110100), B8(00110100)} |
51 | #define DEC_IMM {B8(00101100), B8(00111111)} |
52 | |
53 | #define DEC_BR {B8(00100110), B8(00110111)} |
54 | #define DEC_BCC {B8(00100111), B8(00110111)} |
55 | #define DEC_RTS {B8(00101101), B8(00111111)} |
56 | |
57 | #define DEC_STREAM {B8(00010011), B8(00110111)} |
58 | |
59 | #endif |
60 | |