ADFFS 2.69

Floppy Disc Controller emulator and virtual IOC/IOMD/ARM JIT for modern RISC OS machines
JonAbbott
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Joined: Thu Apr 11, 2013 12:13 pm
Location: Essex
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Re: ADFFS 2.69

Post by JonAbbott »

JonAbbott wrote: Wed Nov 21, 2018 10:56 am Spent a few hours recoding VSync generation in the GraphicsV driver yesterday and managed to get this title working...however, the knock on effect is Gribbly's Day Out, Manchester United and Manchester United Europe all break.
Spent a lot more time looking at this on Thu and managed to get all four games working, but the knock on effect is it introduces microstutter as the GPU VSync and the 50Hz VSync drift out of phase.

I think what I need to do next is investigate where FileCore is locking to confirm if it's VCHIQ, IRQsema or something else causing the lock. I'll probably also add a watchdog to see if locks such as this can be recovered, although without a reliable source of time, I'm not exactly sure how I'm going to determine if it's locked - I'll try adding a high priority RTSupport thread and see if that continues to get called when it's locked.
Vanfanel
Posts: 576
Joined: Mon Sep 16, 2013 12:01 am

Re: ADFFS 2.69

Post by Vanfanel »

@Jon: I hope you can come up with a solution with no hiccups... ADFFS is SO great because games look as they originally did, perfectly smooth scroll is a fudamental part :)
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