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/*-
* 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.
*
* $Id: //depot/aic7xxx/aic7xxx/aicasm/aicasm_insformat.h#11 $
*
* $FreeBSD: release/9.1.0/sys/dev/aic7xxx/aicasm/aicasm_insformat.h 139749 2005-01-06 01:43:34Z imp $
*/
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;
STAILQ_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