1 /* $OpenBSD: aicasm_insformat.h,v 1.4 2003/12/24 23:27:55 krw Exp $ */
2 /* $NetBSD: aicasm_insformat.h,v 1.1 2003/04/19 19:26:11 fvdl Exp $ */
3
4 /*
5 * Instruction formats for the sequencer program downloaded to
6 * Aic7xxx SCSI host adapters
7 *
8 * Copyright (c) 1997, 1998, 2000 Justin T. Gibbs.
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions, and the following disclaimer,
16 * without modification.
17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18 * substantially similar to the "NO WARRANTY" disclaimer below
19 * ("Disclaimer") and any redistribution must be conditioned upon
20 * including a substantially similar Disclaimer requirement for further
21 * binary redistribution.
22 * 3. Neither the names of the above-listed copyright holders nor the names
23 * of any contributors may be used to endorse or promote products derived
24 * from this software without specific prior written permission.
25 *
26 * Alternatively, this software may be distributed under the terms of the
27 * GNU General Public License ("GPL") version 2 as published by the Free
28 * Software Foundation.
29 *
30 * NO WARRANTY
31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
41 * POSSIBILITY OF SUCH DAMAGES.
42 *
43 * $FreeBSD: src/sys/dev/aic7xxx/aicasm/aicasm_insformat.h,v 1.8 2002/11/27 07:06:43 scottl Exp $
44 */
45
46 struct ins_format1 {
47 #if BYTE_ORDER == LITTLE_ENDIAN
48 uint32_t immediate : 8,
49 source : 9,
50 destination : 9,
51 ret : 1,
52 opcode : 4,
53 parity : 1;
54 #else
55 uint32_t parity : 1,
56 opcode : 4,
57 ret : 1,
58 destination : 9,
59 source : 9,
60 immediate : 8;
61 #endif
62 };
63
64 struct ins_format2 {
65 #if BYTE_ORDER == LITTLE_ENDIAN
66 uint32_t shift_control : 8,
67 source : 9,
68 destination : 9,
69 ret : 1,
70 opcode : 4,
71 parity : 1;
72 #else
73 uint32_t parity : 1,
74 opcode : 4,
75 ret : 1,
76 destination : 9,
77 source : 9,
78 shift_control : 8;
79 #endif
80 };
81
82 struct ins_format3 {
83 #if BYTE_ORDER == LITTLE_ENDIAN
84 uint32_t immediate : 8,
85 source : 9,
86 address : 10,
87 opcode : 4,
88 parity : 1;
89 #else
90 uint32_t parity : 1,
91 opcode : 4,
92 address : 10,
93 source : 9,
94 immediate : 8;
95 #endif
96 };
97
98 union ins_formats {
99 struct ins_format1 format1;
100 struct ins_format2 format2;
101 struct ins_format3 format3;
102 uint8_t bytes[4];
103 uint32_t integer;
104 };
105 struct instruction {
106 union ins_formats format;
107 u_int srcline;
108 struct symbol *patch_label;
109 TAILQ_ENTRY(instruction) links;
110 };
111
112 #define AIC_OP_OR 0x0
113 #define AIC_OP_AND 0x1
114 #define AIC_OP_XOR 0x2
115 #define AIC_OP_ADD 0x3
116 #define AIC_OP_ADC 0x4
117 #define AIC_OP_ROL 0x5
118 #define AIC_OP_BMOV 0x6
119
120 #define AIC_OP_JMP 0x8
121 #define AIC_OP_JC 0x9
122 #define AIC_OP_JNC 0xa
123 #define AIC_OP_CALL 0xb
124 #define AIC_OP_JNE 0xc
125 #define AIC_OP_JNZ 0xd
126 #define AIC_OP_JE 0xe
127 #define AIC_OP_JZ 0xf
128
129 /* Pseudo Ops */
130 #define AIC_OP_SHL 0x10
131 #define AIC_OP_SHR 0x20
132 #define AIC_OP_ROR 0x30