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Annotation of sys/dev/microcode/aic7xxx/aicasm_insformat.h, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: aicasm_insformat.h,v 1.4 2003/12/24 23:27:55 krw Exp $        */
        !             2: /*     $NetBSD: aicasm_insformat.h,v 1.1 2003/04/19 19:26:11 fvdl Exp $        */
        !             3:
        !             4: /*
        !             5:  * Instruction formats for the sequencer program downloaded to
        !             6:  * Aic7xxx SCSI host adapters
        !             7:  *
        !             8:  * Copyright (c) 1997, 1998, 2000 Justin T. Gibbs.
        !             9:  * All rights reserved.
        !            10:  *
        !            11:  * Redistribution and use in source and binary forms, with or without
        !            12:  * modification, are permitted provided that the following conditions
        !            13:  * are met:
        !            14:  * 1. Redistributions of source code must retain the above copyright
        !            15:  *    notice, this list of conditions, and the following disclaimer,
        !            16:  *    without modification.
        !            17:  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
        !            18:  *    substantially similar to the "NO WARRANTY" disclaimer below
        !            19:  *    ("Disclaimer") and any redistribution must be conditioned upon
        !            20:  *    including a substantially similar Disclaimer requirement for further
        !            21:  *    binary redistribution.
        !            22:  * 3. Neither the names of the above-listed copyright holders nor the names
        !            23:  *    of any contributors may be used to endorse or promote products derived
        !            24:  *    from this software without specific prior written permission.
        !            25:  *
        !            26:  * Alternatively, this software may be distributed under the terms of the
        !            27:  * GNU General Public License ("GPL") version 2 as published by the Free
        !            28:  * Software Foundation.
        !            29:  *
        !            30:  * NO WARRANTY
        !            31:  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
        !            32:  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
        !            33:  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
        !            34:  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
        !            35:  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            36:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            37:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            38:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
        !            39:  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
        !            40:  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
        !            41:  * POSSIBILITY OF SUCH DAMAGES.
        !            42:  *
        !            43:  * $FreeBSD: src/sys/dev/aic7xxx/aicasm/aicasm_insformat.h,v 1.8 2002/11/27 07:06:43 scottl Exp $
        !            44:  */
        !            45:
        !            46: struct ins_format1 {
        !            47: #if BYTE_ORDER == LITTLE_ENDIAN
        !            48:        uint32_t        immediate       : 8,
        !            49:                        source          : 9,
        !            50:                        destination     : 9,
        !            51:                        ret             : 1,
        !            52:                        opcode          : 4,
        !            53:                        parity          : 1;
        !            54: #else
        !            55:        uint32_t        parity          : 1,
        !            56:                        opcode          : 4,
        !            57:                        ret             : 1,
        !            58:                        destination     : 9,
        !            59:                        source          : 9,
        !            60:                        immediate       : 8;
        !            61: #endif
        !            62: };
        !            63:
        !            64: struct ins_format2 {
        !            65: #if BYTE_ORDER == LITTLE_ENDIAN
        !            66:        uint32_t        shift_control   : 8,
        !            67:                        source          : 9,
        !            68:                        destination     : 9,
        !            69:                        ret             : 1,
        !            70:                        opcode          : 4,
        !            71:                        parity          : 1;
        !            72: #else
        !            73:        uint32_t        parity          : 1,
        !            74:                        opcode          : 4,
        !            75:                        ret             : 1,
        !            76:                        destination     : 9,
        !            77:                        source          : 9,
        !            78:                        shift_control   : 8;
        !            79: #endif
        !            80: };
        !            81:
        !            82: struct ins_format3 {
        !            83: #if BYTE_ORDER == LITTLE_ENDIAN
        !            84:        uint32_t        immediate       : 8,
        !            85:                        source          : 9,
        !            86:                        address         : 10,
        !            87:                        opcode          : 4,
        !            88:                        parity          : 1;
        !            89: #else
        !            90:        uint32_t        parity          : 1,
        !            91:                        opcode          : 4,
        !            92:                        address         : 10,
        !            93:                        source          : 9,
        !            94:                        immediate       : 8;
        !            95: #endif
        !            96: };
        !            97:
        !            98: union ins_formats {
        !            99:                struct ins_format1 format1;
        !           100:                struct ins_format2 format2;
        !           101:                struct ins_format3 format3;
        !           102:                uint8_t            bytes[4];
        !           103:                uint32_t           integer;
        !           104: };
        !           105: struct instruction {
        !           106:        union   ins_formats format;
        !           107:        u_int   srcline;
        !           108:        struct symbol *patch_label;
        !           109:        TAILQ_ENTRY(instruction) links;
        !           110: };
        !           111:
        !           112: #define        AIC_OP_OR       0x0
        !           113: #define        AIC_OP_AND      0x1
        !           114: #define AIC_OP_XOR     0x2
        !           115: #define        AIC_OP_ADD      0x3
        !           116: #define        AIC_OP_ADC      0x4
        !           117: #define        AIC_OP_ROL      0x5
        !           118: #define        AIC_OP_BMOV     0x6
        !           119:
        !           120: #define        AIC_OP_JMP      0x8
        !           121: #define AIC_OP_JC      0x9
        !           122: #define AIC_OP_JNC     0xa
        !           123: #define AIC_OP_CALL    0xb
        !           124: #define        AIC_OP_JNE      0xc
        !           125: #define        AIC_OP_JNZ      0xd
        !           126: #define        AIC_OP_JE       0xe
        !           127: #define        AIC_OP_JZ       0xf
        !           128:
        !           129: /* Pseudo Ops */
        !           130: #define        AIC_OP_SHL      0x10
        !           131: #define        AIC_OP_SHR      0x20
        !           132: #define        AIC_OP_ROR      0x30