summaryrefslogtreecommitdiff
path: root/sys/dev/microcode/aic7xxx/aicasm_insformat.h
blob: 62d738c055da7aa6113e16dbec8bac9b89473d6f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
/*	$OpenBSD: aicasm_insformat.h,v 1.4 2003/12/24 23:27:55 krw Exp $	*/
/*	$NetBSD: aicasm_insformat.h,v 1.1 2003/04/19 19:26:11 fvdl Exp $	*/

/*
 * Instruction formats for the sequencer program downloaded to
 * Aic7xxx SCSI host adapters
 *
 * Copyright (c) 1997, 1998, 2000 Justin T. Gibbs.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions, and the following disclaimer,
 *    without modification.
 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
 *    substantially similar to the "NO WARRANTY" disclaimer below
 *    ("Disclaimer") and any redistribution must be conditioned upon
 *    including a substantially similar Disclaimer requirement for further
 *    binary redistribution.
 * 3. Neither the names of the above-listed copyright holders nor the names
 *    of any contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * Alternatively, this software may be distributed under the terms of the
 * GNU General Public License ("GPL") version 2 as published by the Free
 * Software Foundation.
 *
 * NO WARRANTY
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGES.
 *
 * $FreeBSD: src/sys/dev/aic7xxx/aicasm/aicasm_insformat.h,v 1.8 2002/11/27 07:06:43 scottl Exp $
 */

struct ins_format1 {
#if BYTE_ORDER == LITTLE_ENDIAN
	uint32_t	immediate	: 8,
			source		: 9,
			destination	: 9,
			ret		: 1,
			opcode		: 4,
			parity		: 1;
#else
	uint32_t	parity		: 1,
			opcode		: 4,
			ret		: 1,
			destination	: 9,
			source		: 9,
			immediate	: 8;
#endif
};

struct ins_format2 {
#if BYTE_ORDER == LITTLE_ENDIAN
	uint32_t	shift_control	: 8,
			source		: 9,
			destination	: 9,
			ret		: 1,
			opcode		: 4,
			parity		: 1;
#else
	uint32_t	parity		: 1,
			opcode		: 4,
			ret		: 1,
			destination	: 9,
			source		: 9,
			shift_control	: 8;
#endif
};

struct ins_format3 {
#if BYTE_ORDER == LITTLE_ENDIAN
	uint32_t	immediate	: 8,
			source		: 9,
			address		: 10,
			opcode		: 4,
			parity		: 1;
#else
	uint32_t	parity		: 1,
			opcode		: 4,
			address		: 10,
			source		: 9,
			immediate	: 8;
#endif
};

union ins_formats {
		struct ins_format1 format1;
		struct ins_format2 format2;
		struct ins_format3 format3;
		uint8_t		   bytes[4];
		uint32_t	   integer;
};
struct instruction {
	union	ins_formats format;
	u_int	srcline;
	struct symbol *patch_label;
	TAILQ_ENTRY(instruction) links;
};

#define	AIC_OP_OR	0x0
#define	AIC_OP_AND	0x1
#define AIC_OP_XOR	0x2
#define	AIC_OP_ADD	0x3
#define	AIC_OP_ADC	0x4
#define	AIC_OP_ROL	0x5
#define	AIC_OP_BMOV	0x6

#define	AIC_OP_JMP	0x8
#define AIC_OP_JC	0x9
#define AIC_OP_JNC	0xa
#define AIC_OP_CALL	0xb
#define	AIC_OP_JNE	0xc
#define	AIC_OP_JNZ	0xd
#define	AIC_OP_JE	0xe
#define	AIC_OP_JZ	0xf

/* Pseudo Ops */
#define	AIC_OP_SHL	0x10
#define	AIC_OP_SHR	0x20
#define	AIC_OP_ROR	0x30