[Coco] Programming help
billg999 at cs.uofs.edu
billg999 at cs.uofs.edu
Tue Jun 25 10:25:24 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.
It's all there. he just didn't include the whole program. If this
is all he typed in, no wonder it doesn't work.
bill
>
>
> On Tue, Jun 25, 2013 at 9:13 AM, Bill <cwgordon at carolina.rr.com> wrote:
>
>> Im trying to write an assembly language routine, and having whats
>> 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
>>
>>
>>
>>
>> --
>> Coco mailing list
>> Coco at maltedmedia.com
>> http://five.pairlist.net/mailman/listinfo/coco
>>
>
>
>
> --
> Long live the CoCo
>
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>
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