[Coco] NitrOS9 and 6309 code

[L. Curtis Boyle]

It created its own internal system calls. So the stack offsets to get register values were wrong when running in native mode. 

Sent from my iPhone

On Jun 1, 2019, at 8:16 AM, Allen Huffman <alsplace at pobox.com> wrote:

>> On Jun 1, 2019, at 8:12 AM, L. Curtis Boyle <curtisboyle at sasktel.net> wrote:
>> 
>> see if you are running NitrOS-9, as the plain 6309 test will pass even when running 6809 NitrOS-9, and any software that uses software interrupts (or redefines system calls - like Home Publisher) will not work correctly or crash. 
> 
> What does Home Publisher do with the interrupts? I loved that program (other than the speed). We used it for our Sub-Etha newsletters and flyers, later on. Such an evolution of programs we used (Simply Better, OS-9 text formatters, Home Publisher, etc.) over the five years we were active.
> 
>        — Allen
> 
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