[Coco] Accessing Vsync & Hsync interrups from Nitros9

Sat Apr 11 03:31:24 EDT 2020

You can try using the functionality in VRN (and /nil), as it used VIRQ timers based on VSync. The Sierra games and Flight Sim II use it. I don’t think anything uses HSync currently - it would be a lot of overhead for multi-tasking.

L. Curtis Boyle
curtisboyle at sasktel.net

> On Apr 11, 2020, at 1:13 AM, Walter Zambotti <zambotti at iinet.net.au> wrote:
> 
> So I am in need of Vsync synchronization in my application.
> 
> Is it possible to register for this interrupt in Nitros09 in a user land
> application?
> 
> Either asm or C.
> 
> Walter
> 
> 
> 
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