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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#12 $
- *
- * $FreeBSD$
- */
- #include <asm/byteorder.h>
- /* 8bit ALU logic operations */
- struct ins_format1 {
- #ifdef __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
- };
- /* 8bit ALU shift/rotate operations */
- struct ins_format2 {
- #ifdef __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
- };
- /* 8bit branch control operations */
- struct ins_format3 {
- #ifdef __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
- };
- /* 16bit ALU logic operations */
- struct ins_format4 {
- #ifdef __LITTLE_ENDIAN
- uint32_t opcode_ext : 8,
- source : 9,
- destination : 9,
- ret : 1,
- opcode : 4,
- parity : 1;
- #else
- uint32_t parity : 1,
- opcode : 4,
- ret : 1,
- destination : 9,
- source : 9,
- opcode_ext : 8;
- #endif
- };
- /* 16bit branch control operations */
- struct ins_format5 {
- #ifdef __LITTLE_ENDIAN
- uint32_t opcode_ext : 8,
- source : 9,
- address : 10,
- opcode : 4,
- parity : 1;
- #else
- uint32_t parity : 1,
- opcode : 4,
- address : 10,
- source : 9,
- opcode_ext : 8;
- #endif
- };
- /* Far branch operations */
- struct ins_format6 {
- #ifdef __LITTLE_ENDIAN
- uint32_t page : 3,
- opcode_ext : 5,
- source : 9,
- address : 10,
- opcode : 4,
- parity : 1;
- #else
- uint32_t parity : 1,
- opcode : 4,
- address : 10,
- source : 9,
- opcode_ext : 5,
- page : 3;
- #endif
- };
- union ins_formats {
- struct ins_format1 format1;
- struct ins_format2 format2;
- struct ins_format3 format3;
- struct ins_format4 format4;
- struct ins_format5 format5;
- struct ins_format6 format6;
- 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_MVI16 0x7
- #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
- /* 16bit Ops. Low byte main opcode. High byte extended opcode. */
- #define AIC_OP_OR16 0x8005
- #define AIC_OP_AND16 0x8105
- #define AIC_OP_XOR16 0x8205
- #define AIC_OP_ADD16 0x8305
- #define AIC_OP_ADC16 0x8405
- #define AIC_OP_JNE16 0x8805
- #define AIC_OP_JNZ16 0x8905
- #define AIC_OP_JE16 0x8C05
- #define AIC_OP_JZ16 0x8B05
- #define AIC_OP_JMP16 0x9005
- #define AIC_OP_JC16 0x9105
- #define AIC_OP_JNC16 0x9205
- #define AIC_OP_CALL16 0x9305
- #define AIC_OP_CALL16 0x9305
- /* Page extension is low three bits of second opcode byte. */
- #define AIC_OP_JMPF 0xA005
- #define AIC_OP_CALLF 0xB005
- #define AIC_OP_JCF 0xC005
- #define AIC_OP_JNCF 0xD005
- #define AIC_OP_CMPXCHG 0xE005
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