Peter wrote:
> On Tue, 4 Apr 2006, Scott Dattalo wrote:
> 
> 
>>Vertical adders take a minimum of 6 instructions per bit. However, I
>>haven't found a need yet for vertical adders.
> 
> 
> This looks like a good time to ask: do you have code to rotate the 8x8 
> matrix of vertical counter bits into a 8x8 matrix of horizontal counters 
> ? (not necessarily in order ot adjacent) ?

This is called a corner-bender. I don't have the code to do this, but 
the fastest PIC solution is 128 cycles (2-cycles/bit). But like the 
vertical adders, I've never needed to do this in firmware.

Scott
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