[Coco] Quick 6809 Q for night owls in the US

Steve 6809er at srbsoftware.com
Tue Apr 15 09:32:44 EDT 2014


On 4/15/2014 6:29 AM, Juan Castro wrote:
> EUUGH! NO!
> LDX HOWMANYITERARIONS
No, that's LDX #HOWMANYITERARIONS
>
> YOURLOOP (DO SOMETHING)
> LEAX -1,X
> BNE YOURLOOP
>
> On Tue, Apr 15, 2014 at 10:28 AM, Juan Castro <jccyc1965 at gmail.com> wrote:
>> YOURLOOP LDX HOWMANYITERATIONS
>>
>> * DO SOMETHING
>>
>> LEAX -1.X
>> BNE YOURLOOP
>>
>> On Tue, Apr 15, 2014 at 10:19 AM, Mark McDougall <msmcdoug at iinet.net.au> wrote:
>>> How would one write a (tight) loop, say a few thousand iterations in 6809
>>> assembler? Can it be done with the X/Y registers? D? Or do I need a memory
>>> variable? It's for a delay...
>>>
>>> Regards,
>>>
>>> --
>>> |              Mark McDougall                | "Electrical Engineers do it
>>> |  <http://members.iinet.net.au/~msmcdoug>   |   with less resistance!"
>>>
>>> --
>>> Coco mailing list
>>> Coco at maltedmedia.com
>>> http://five.pairlist.net/mailman/listinfo/coco
> --
> Coco mailing list
> Coco at maltedmedia.com
> http://five.pairlist.net/mailman/listinfo/coco




More information about the Coco mailing list