Re: A89: Strange Speed Differences


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Re: A89: Strange Speed Differences




--- Johan Eilert <johei804@student.liu.se> wrote:
> 
> The clock speed does not change, the number of
> waitstates do.

cool. That might explain this, although I did fiddle
w/ the waitstates.
 
> How did you measure the speed?

With this prog:

_main:  move.w  #$0700,d0
        trap    #1         ; ints off
        move.w  #$FFFF,d1
\lp1:   move.w  #$0400,d2
\lp2:   dbra    d2,\lp2
        dbra    d1,\lp1
        trap    #1         ; ints on
        rts

        end

I think your right about the waitstates... but why
does TI change them shortly after bootup?

-Jeff Flanigan

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