Jim, your specific problem is this:

At the beginning of your code it starts out:

>> init
>>         movlw   LupCnt
>>         movwf   count
>> ...

Now you've commented out the org 0 so that was ignored, however
in the absence of any directive the assembler starts loading code
at location 0. (makes sense yes?)

Now later in your program you have:

>>;
>>        org     0
>>        goto    main
>>;
>>        END

Which re-sets the program counter to zero and trys to assemble the
'goto main' into that address. Which overwrites the 'movlw LupCnt'
that you had in init above.

The correct fix for this specific problem is that you should move
the 'goto main' to be the first statement in your program and then
it will assemble at location 0 and all will be well.

I both agree and disagree with what has been said about Parallax's
assembler. On the one hand, if you've got working MPASM code it can
be a real pain to get it to assemble correctly with the Parallax
assembler. On the other hand, if you learn the Parallax assemblers
quirks early on (and MPASM has its own) then writing new code from
scratch can be fairly easy in both.

The lack of a macro facility and conditional assembly in the Parallax
assembler hurt it, however if you are using Linux then you could always
run cpp over the code before feeding it to pasm.

--Chuck McManis                      All opinions in this message/article are
Sun Microsystems Inc.                those of the author, who may or may not
Internet: cmcmanis@Eng.sun.COM       be who you think it is.
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