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  • Re: M68000 and MVME101 Emulator in Source Code

    From Copeland@21:1/5 to All on Thu Feb 3 15:52:02 2022
    On Wednesday, January 3, 1996 at 9:00:00 AM UTC+1, n4521661 wrote:
    Emulator of 68000 in Source Code
    As a part of my M.Sc. dissertation, an emulator of 68000 was produced, and this
    emulator is portable while using C++ and OO to develop. The program has been planted to PC DOS and two UNIX system successfully.
    If you need a 68000 emulator for 68000 chip or MVME101 computer for studying M68000 assembly language, you may be interested in it. This emulator evaluate
    M68000 machine code in S-format.
    It was expected that this emulator can not be real-time since the source program is
    entirely in C++ language. The speed of this emulator was roughly tested. The speed of
    the emulator running in PC-486/33 was about 1/50 of the speed of MVME101, and
    about four times as fast as the E68K made by University of Teeside. Nevertheless, the
    program is fast enough to test most of the M68000 programs that students in the
    university have to practise in computer architecture course.
    Here I present two sets of source code, one for PC, another for UNIX, actually, the
    contents are nearly the same.
    You can get those zip files from a public ftp site and a www page.
    public ftp site:
    aidan.ncl.ac.uk
    /pub/local/n4521661/emu/
    www page:
    http://www.ncl.ac.uk/~n4521661/emu.htm
    Then you will find emupc.zip (for PC), emunewto.zip (for UNIX), sfile.zip (sample
    M68000 assembly language programs), and readme.txt (user manual, or readme.doc --
    MS-Word file).
    After you unzip the emupc.zip, you start Borland C++, open project file 'process.ide',
    then make it. If you don't have Borland C++ compiler or Turbo C++ compiler, you can
    use files in emunewto.zip.
    After you unzip the emunewto.zip, please do read file 'mtype.h', focus on those pre-
    processor instructions, then make it.
    To run the M68000 program on this emulator, this way:
    'emu68.exe sFormatFile'
    ********
    M68000 instruction set supported by EMU68
    All the M68000 instructions in normal state are supported except those listed below:
    ABCD
    CHK
    MOVEP
    NBCD
    SBCD
    TAS
    If you use MVME101bug 3.n Debug Package, you can expect this emulator support
    trap calls 'TRAP #15 -- DC.W $00, 01, 10, 11, 12, 13, 14'.
    If you use M68000 computer other than MVME101, you might have to modify some of source code yourself. Please contact me then for development documents of EMU68.
    Any opinion please tell me.

    Zijian Huang
    E-mail: n452...@aidan.ncl.ac.uk
    WWW: http://www.ncl.ac.uk/~n4521661
    Tel: (UK) + 0421 377903
    I was browsing the internet looking for info on the MVME101 and 68000 for a project (rebuilding a MVM101 or MEX68kECB in Kicad) when I came accross a page on www.verycomputer.com. I''m interested in teh software you described there, but it is nowhewre to
    be found. Except for the same entry here! Do you still have the software and other information, and if yes, are you willing to share? Thanks in advance,
    Robert

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