< One minor thing to remember that if you are dealing with lengths that are
< not a multiple of 256 bytes, then the MVC loop method is going to have to
< drop thru to an executed move for those remaining bytes.  This means that
< you need addressability to that target of the execute instruction and  
< depending on the environment where your code is executing that might be a
< non-trivial or non-desirable exercise. 

My MVC loop included the executed last move of the final 256 bytes, so my
timings include these instructions. In my case I had addressability to the
instructions but I agree with Rob that this might be an issue.   

Andy Coburn 

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