vmsvga: don't process more than 1024 fifo commands at once
[qemu.git] / target-microblaze / microblaze-decode.h
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 /* Convenient binary macros. */
21 #define HEX__(n) 0x##n##LU
22 #define B8__(x) ((x&0x0000000FLU)?1:0) \
23 + ((x&0x000000F0LU)?2:0) \
24 + ((x&0x00000F00LU)?4:0) \
25 + ((x&0x0000F000LU)?8:0) \
26 + ((x&0x000F0000LU)?16:0) \
27 + ((x&0x00F00000LU)?32:0) \
28 + ((x&0x0F000000LU)?64:0) \
29 + ((x&0xF0000000LU)?128:0)
30 #define B8(d) ((unsigned char)B8__(HEX__(d)))
31
32 /* Decode logic, value and mask. */
33 #define DEC_ADD {B8(00000000), B8(00110001)}
34 #define DEC_SUB {B8(00000001), B8(00110001)}
35 #define DEC_AND {B8(00100001), B8(00110101)}
36 #define DEC_XOR {B8(00100010), B8(00110111)}
37 #define DEC_OR {B8(00100000), B8(00110111)}
38 #define DEC_BIT {B8(00100100), B8(00111111)}
39 #define DEC_MSR {B8(00100101), B8(00111111)}
40
41 #define DEC_BARREL {B8(00010001), B8(00110111)}
42 #define DEC_MUL {B8(00010000), B8(00110111)}
43 #define DEC_DIV {B8(00010010), B8(00110111)}
44 #define DEC_FPU {B8(00010110), B8(00111111)}
45
46 #define DEC_LD {B8(00110000), B8(00110100)}
47 #define DEC_ST {B8(00110100), B8(00110100)}
48 #define DEC_IMM {B8(00101100), B8(00111111)}
49
50 #define DEC_BR {B8(00100110), B8(00110111)}
51 #define DEC_BCC {B8(00100111), B8(00110111)}
52 #define DEC_RTS {B8(00101101), B8(00111111)}
53
54 #define DEC_STREAM {B8(00010011), B8(00110111)}
55