Hmm. My memory must be faulty, but I don't remember the first one having the final xor and stosb. I do remember looking at your solution and thinking that you

Hmm. My memory must be faulty, but I don't remember the first one having the final xor and stosb. I do remember looking at your solution and thinking that you'd forgotten it, that's why I expressed an interest in seeing the original. Still, likely my memory is at fault.