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Annotation of coherent/d/286_KERNEL/USRSRC/ldrv/ldrts0.s, revision 1.1

1.1     ! root        1: / $Header: /usr/src/sys/ldrv/RCS/ldrts0.s,v 1.1 88/03/24 16:30:47 src Exp $
        !             2: / 
        !             3: /      The  information  contained herein  is a trade secret  of INETCO
        !             4: /      Systems, and is confidential information.   It is provided under
        !             5: /      a license agreement,  and may be copied or disclosed  only under
        !             6: /      the terms of that agreement.   Any reproduction or disclosure of
        !             7: /      this  material  without  the express  written  authorization  of
        !             8: /      INETCO Systems or persuant to the license agreement is unlawful.
        !             9: / 
        !            10: /      Copyright (c) 1987
        !            11: /      An unpublished work by INETCO Systems, Ltd.
        !            12: /      All rights reserved.
        !            13: /
        !            14: 
        !            15: ////////
        !            16: /
        !            17: / Loadable Driver Run Time Startup
        !            18: /
        !            19: / Notes:       This function MUST be at offset 0 in driver code segment.
        !            20: /
        !            21: / $Log:        /usr/src/sys/ldrv/RCS/ldrts0.s,v $
        !            22: / Revision 1.1 88/03/24  16:30:47      src
        !            23: / Initial revision
        !            24: / 
        !            25: /
        !            26: ////////
        !            27: 
        !            28:        .globl  main_
        !            29:        call    main_
        !            30:        xret
        !            31: 
        !            32: ////////
        !            33: /
        !            34: /      Invocation mechanism for local driver functions by kernel code.
        !            35: /
        !            36: /      Input:  AX      = pointer to local function to be invoked.
        !            37: /              4(BP)   = 1st parameter to be passed to local function.
        !            38: /              6(BP)   = 2nd parameter to be passed to local function.
        !            39: /              8(BP)   = 3rd parameter to be passed to local function.
        !            40: /
        !            41: /      Action: Invoke local function whose address is given in register AX,
        !            42: /              passing parameters at offset 4,6,8 relative to register BP.
        !            43: /              Perform a far return to operating system.
        !            44: /
        !            45: /      Notes:  Parameter passing convention specified by kernel.
        !            46: /              This function MUST be at offset 4 in driver code segment.
        !            47: /
        !            48: ////////
        !            49: 
        !            50:        push    8(bp)
        !            51:        push    6(bp)
        !            52:        push    4(bp)
        !            53:        icall   ax
        !            54:        add     sp, $6
        !            55:        xret

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