Hi,

On 9/18/05, Sean Schouten wrote:

> Looking at the last line of code where the CODE-Directive had been utilized,
> I wondered if they where defining the label START as an ORG 0x00 type of
> thing for later use in their code. The UDATA at the top threw me off
> though... I supposed that any UDATA-Directive should be 'finished' off by a
> CODE-Directive. Am I wrong thinking that?

No, not really must follow this way. But it's a good idea to keep all
the relevant code and RAM in the same module, right?  In a big
project, you might have several module (ASM) files, and I think it's a
good idea to place all code with relevant UDATA together.


> The thing is that my main program code is at the bottom of the source, and
> usually where I put my ORG 0x00. If I where to implement the above code in
> my code, would I replace the ORG 0x00 in the main program code with a simple
> "Start"-label?

I not sure what you mean here... but normally I will have

RESET_V code 0x00000
Start:
    ; instructions go here
    goto main     ; an example!


> I also presumed that the UDATA-Directive that comes before the
> RES-directives is a must?

Not really. If your module (ASM code) don't need any RAM, then you
could ignore that.

> Ah, a last-minute addition to this email: MPASM is complaining that I am
> using CODE and UDATA in my ASM and telling me that I can only use them when
> generating an object file... Does that mean that I am not thought of as a
> likable person in this absolutely MAD world?

Most likely, you didn't add the linker script to your project. Have you?

Best regards,

-- 
WH Tan

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