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Thread: Vector count

  1. #1

    Vector count

    Ok.. dhc11 takes 3 passes and finds something like this:
    (i'm borrowing this info from tec's website)

    Pass 1 found 316 new entry points.
    Pass 2 found 93 new entry points.
    Pass 3 found 0 new entry points.
    Total of 3 iteration(s) to find all code.



    FFC9 fill $00, 39
    FFF0 db $60, $00, $93, $69, $B3, $34, $60, $00, $90, $02
    FFFA db $90, $00, $90, $04
    FFFE LFFFE: dw L9006
    end

    The question is.. how do you tell from that info how many vectors there are so you can change the control file? The website says there are 8 there but how they found that out is a mystery..

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  2. #2
    Tuner in Training
    Join Date
    Sep 2002
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    Re: Vector count

    Part of the mystery is knowing what chip. The hc11 has vectors from FFC0 to FFFF. In your case the program is filled until FFEF. This would indicate a P4 computer. The vectors are the eight words from FFF0 to FFFF.

    HTH

    John

  3. #3

    Re: Vector count

    ok.. that helped.. i changed my control file and it worked.
    I just wasnt sure exactly how it arrived at 8.

    I am just having too much fun now.. lol

    this stuff is truly addicting.. i hope there is a 12 step program out there..
    assemblers anonymous..
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