aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/scsi/aic7xxx_old/sequencer.h
blob: ee66855222b10ec05667ce35d882de498e9450dc (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
133
134
135
/*
 * Instruction formats for the sequencer program downloaded to
 * Aic7xxx SCSI host adapters
 *
 * Copyright (c) 1997, 1998 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, immediately at the beginning of the file.
 * 2. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * Where this Software is combined with software released under the terms of 
 * the GNU General Public License ("GPL") and the terms of the GPL would require the 
 * combined work to also be released under the terms of the GPL, the terms
 * and conditions of this License will apply in addition to those of the
 * GPL with the exception of any terms or conditions of this License that
 * conflict with, or are expressly prohibited by, the GPL.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, 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 DAMAGE.
 *
 *      $Id: sequencer.h,v 1.3 1997/09/27 19:37:31 gibbs Exp $
 */

#ifdef __LITTLE_ENDIAN_BITFIELD
struct ins_format1 {
	unsigned int
			immediate	: 8,
			source		: 9,
			destination	: 9,
			ret		: 1,
			opcode		: 4,
			parity		: 1;
};

struct ins_format2 {
	unsigned int
			shift_control	: 8,
			source		: 9,
			destination	: 9,
			ret		: 1,
			opcode		: 4,
			parity		: 1;
};

struct ins_format3 {
	unsigned int
			immediate	: 8,
			source		: 9,
			address		: 10,
			opcode		: 4,
			parity		: 1;
};
#elif defined(__BIG_ENDIAN_BITFIELD)
struct ins_format1 {
	unsigned int
			parity		: 1,
			opcode		: 4,
			ret		: 1,
			destination	: 9,
			source		: 9,
			immediate	: 8;
};

struct ins_format2 {
	unsigned int
			parity		: 1,
			opcode		: 4,
			ret		: 1,
			destination	: 9,
			source		: 9,
			shift_control	: 8;
};

struct ins_format3 {
	unsigned int
			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;
		unsigned char	   bytes[4];
		unsigned int	   integer;
};
struct instruction {
	union	ins_formats format;
	unsigned int	srcline;
	struct symbol *patch_label;
  struct {
    struct instruction *stqe_next;
  } 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