Scott,

I am pretty much a newbie myself and not offended by the term either. I
was just about to reply when I saw Tony's reply come through.

I don't know about you, but I find HEX simply confusing. Most
unnatural! :-)

Instead of;

> start   movlw   0x00

have you considered;

start   movlw   b'00000000'
tris   porta
tris   portb

Also, Tony missed this one (- I think)

>         movlw   0xff    ;set portb high
>         movwf   portb   ;set portb to all 0's

Your comment says you are setting portb all low, but isn't the hex that
you've moved to W in the previous line 255? It makes no difference in
your program, but the point is that it *could* :-(

Just a suggestion, but I find binary easier to work in. When you need
to manipulate one pin, you simply count from the right of your byte and
that's the digit you change.

Cheers,

Sean

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