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