Re: A89: interrupts... And More!
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Re: A89: interrupts... And More!
A quick question- when a program is run from the home screen (or
wherever), is it run in supervisor mode? I want to know this so i can
set an interrupt, and use TRAP for function calls.
Olle Hedman wrote:
>
> you have either:
>
> Auto-Int 1
> ----------
> Triggered every 4th time [600017] is incremented. It runs at
> approximately 350 Hz.
-Way- too fast...
>
> or
>
> Auto-Int 5
> ----------
> Triggered when [600017] is set to its initial value. After ROM
> initialization, it runs at approximately 18 Hz. See Ports.txt.
18Hz is great! So... How do I set it?
And also, where can I find ports.txt? It doesn't seem to be on
ticalc.org...
Are there any other txt files i'm missing?
>
> from ports.txt:
> ---------------
>
<-- snipped excerpt from ports.txt -->
>
> That should cover about everything you need.
>
> //Olle
>
> Robin Kirkman wrote:
> >
> > are there any regularly occurring interrupts on the ti89 that i could
> > set a handler for in the vector table? I need this for some
> > multi-tasking work I'm doing...
> >
> > --robin
References: