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

L. Curtis Boyle curtisboyle at sasktel.net
Tue Apr 15 12:08:17 EDT 2014


Of course, if you have a 6309, you could just do:
LDW #HOWMANYITERATIONS
Loop 
[code]
DECW
BNE Loop

:-P

L. Curtis Boyle
curtisboyle at sasktel.net



On Apr 15, 2014, at 10:01 AM, Juan Castro <jccyc1965 at gmail.com> wrote:

> It's in a variable. :-P
> Em 15/04/2014 10:33, "Steve" <6809er at srbsoftware.com> escreveu:
> 
>> 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
>>> 
>> 
>> 
>> --
>> 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