[Coco] Programming help

Tue Jun 25 10:06:34 EDT 2013

Bill what magazine/number did you take it ? are you sure is not missing a
second page ? sometimes they break the code putting an ad in the middle.

On Tue, Jun 25, 2013 at 9:13 AM, Bill <cwgordon at carolina.rr.com> wrote:

> I’m trying to write an assembly language routine, and having what’s
> probably
> a very simple problem.
>
>
>
> The listing is as follows:
>
>
>
> 10          NAM   B256 ß This is the culprit. Nothing I do will make it
> right.
>
> 70          ORG   $0EOO
>
> 80          ORCC #$50
>
> 90          LDX   #$8000
>
> 100         LDY   #$FFC0      *BANK 0
>
> 110   COPY  STB   $FFDE
>
> 120         LDB   O,Y
>
> 130         LDA   O,X
>
> 140         LDB   $08,Y *BANK 00/00
>
> 150         STB   $FFDF
>
>
>
> Everything else is fine, but I cannot get the first command correct. No
> matter what I do, it comes up with a ‘BAD OPCODE’ error.
>
>
>
> Help??
>
>
>
> Thanks
>
>
>
>
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>

-- 
Long live the CoCo