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    From
    SubjectRe: Driver for EMS boards.
    Date

    -----Original Message-----
    From: Mike A. Harris <mharris@ican.net>
    To: Anthony Barbachan <barbacha@Trill.cis.fordham.edu>
    Cc: Linux Kernel mailing list <linux-kernel@vger.rutgers.edu>
    Date: Saturday, May 23, 1998 4:30 AM
    Subject: Re: Driver for EMS boards.


    >On Wed, 20 May 1998, Anthony Barbachan wrote:
    >
    >> >> possible. However if you have the original DOS drivers, you can get
    this
    >> >> information by disassembling the drivers and tracing down generalities
    of
    >> >> how they work.
    >> >
    >> >Yes, I have downloaded the driver for DOS from AST. It is
    >> >called: REMM.SYS. It is from the file REMM470.ZIP from their ftp
    >> >site. I used a DOS DEBUG script to disassemble the file, and
    >>
    >> CV.EXE on a running driver would work better.
    >> I think DEBUG.EXE also would also work on a running driver, but it will
    be
    >> alot more difficult to look around with debug.
    >
    >Yeah, ok, sounds good. I'll use Turbo Debugger on it I guess.
    >
    >> >Where DX is not easily determined because it is calculated from
    >> >some existing value via a prior INC or DEC instruction, or an OR
    >> >or AND instruction. ;o(
    >> >
    >> >Some of the hard coded addresses that I found are:
    >> >
    >> >0x43, 0xFB, 0xE8, 0xEA, 0xF9, 0xE072, 0xE872
    >>
    >> Any jumpers on the card? I think it may be unlikely that AST would have
    >> hard coded the address into their driver.
    >
    >Yes, there are 5 jumpers on the card, labeled E1-E5.
    >
    >E2 is currently turned ON, and a spare is turned OFF sitting on
    >E1. I suspect that the jumpers choose the page frame, and
    >something else... I don't know what though.
    >
    >

    If you need to locate the current page frame you can probably use msd.exe.



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