> Here's extracts of my code. Can anyone spot the bug?

Yes, I can.  However I don't believe in helping those who haven't even done
the simple little things to help themselves.  There is not a single comment
in the first section of code below.  Go back and force yourself to explain
what you think each instruction is doing, and there's a reasonable chance
you'll figure out the problem on your own.  Another suggestion is to look
over the instruction set again.  You are doing some things the hard way.

> display_message
>                 movlw   0
>                 movf    offset
>
>                 movlw   ">"
>                 call    send_ascii
>
>                 movlw   LOW TABLE
>                 addwf   offset
>                 movlw   HIGH TABLE
>                 btfsc   status,c
>                 addlw   1
>                 movwf   PCLATH
>                 movf    offset,w
>
>                 call    TABLE
>                 call    send_ascii
>
>                 movlw   "<"
>                 call    send_ascii
>
>                 return

> TABLE
>                 movwf   PCL     ; called with displacement in W
>                 retlw   "A"
>                 retlw   "B"
>                 retlw   "C"
>                 retlw   "D"


*****************************************************************
Olin Lathrop, embedded systems consultant in Devens Massachusetts
(978) 772-3129, olin@cognivis.com, http://www.cognivis.com

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