>I have found the following piece of code which is
>included in a delay routine (delay X cycles (11-256)
>by Regulus Berdin ) :
>
>addlw -(.10+1)
>addlw -4
>
>can i replace it with
>
>sublw .11
>sublw .4

I would say no, since the original code was "-11" and "-4", which is
equivalent to 256-11= .239  and 256-4= .252.  If you take, for example,
W=20, then it would be 20+239+252 = 255 (assuming you're only keeping track
of the low byte).

The result in your code would be 4-(11-20) = 0x04-0xF7 = 0x0D = 13 (again,
assuming you're not keeping track of rollovers).  Note that "sublw" means
"subtract W from literal".

--Andrew

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