[Coco] OS-9 Level1 Version 02.00.00 FYI

[Dave Philipsen]

I believe you are correct in that, nominally, the time slice for Level 1 is 1/10 of a second and for Level 2 is 1/100 of a second. I have seen that referenced in a number of OS9 manuals. 

-Dave Philipsen

> On Apr 21, 2020, at 12:18 AM, Walter Zambotti <zambotti at iinet.net.au> wrote:
> 
> Yes Virq is 1/60 sec.
> 
> However I was referring the system clock. Which I (mistaking thought) was 1/100 of a second.
> 
> I checked in Nitros9 and Os9 tech manuals and it states time slice is 1/60th.
> 
> I'm not sure why (apart from old age) I have a clear recollection of seeing the original Os9 had a time slice of 1/10 sec and the later Os9 was 1/100th.
> 
> Well if 1/60th is the case I have no explanation why tstfs2.asm is not picking up the correct Virq timing in the emulators.
> 
> Since last email I wrote a little C app to access the VRN driver and test the Virq rate (like tstfs2) and that works as expected even on the emulator.
> 
> So now I'm really stumped.
> 
> -----Original Message-----
> From: Coco [mailto:coco-bounces at maltedmedia.com] On Behalf Of L. Curtis Boyle
> Sent: Tuesday, 21 April 2020 12:56 AM
> To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
> Subject: Re: [Coco] OS-9 Level1 Version 02.00.00 FYI
> 
> The Coco VIRQ is indeed based on 1/60th of a second, not 1/100th
> 
> Sent from my iPhone