FreeBSD/Linux Kernel Cross Reference
sys/dev/aic7xxx/aicasm/aicasm_insformat.h

     /*-
      * Instruction formats for the sequencer program downloaded to
      * Aic7xxx SCSI host adapters
      *
      * SPDX-License-Identifier: BSD-3-Clause
      *
      * 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 $
     *
     * $FreeBSD$
     */
    
    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

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