Re: A86: FindPixel in 84 cycles and 19 bytes!


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Re: A86: FindPixel in 84 cycles and 19 bytes!



On Fri, 8 Aug 1997 ariwsi@juno.com wrote:

>  ; Here it is:  a FindPixel using only 84 clock cycles and 19 bytes!

You miscounted.  You have a FindPixel in 84 clock cycles and 16488 bytes
(not counting the ret).


>  ; Call with H = Y coordinate, L = X coordinate

The routine modifies the input registers, which would have to be pushed
and popped, or reloaded, if this were to be called multiple times (which
is highly likely).  This increases the number of clock cycles.


--------
Dan Eble (mailto:eble@cis.ohio-state.edu)
         (http://www.cis.ohio-state.edu/~eble)


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