[Coco] XRoar Accuracy (was: Introduction)

[Bill Pierce]

Jayeson
Ciaran has been doing a great job on XRoar. I have recently been working with it using NitrOS-9 as well as HDBDOS. Ciaran added the Becker port and now you can access 4 HDs using drivewire as well as the standard 4 floppies In the latest test version he finally added mouse support for joystick emulation.
Just last night, I was running Lyra on XRoar playing midi through Drivewire.
If I knew the changes needed, I would convert Lyra to run on Dragon 64 as well.
XRoar is becoming the most solid Coco 2 / Dragon emulation out there. Anyone who hasn't tried it lately needs to do so as it's steadily being up dated. He should have a new public release soon.

http://www.6809.org.uk/dragon/xroar.shtml

BTW, Ciaran was telling me he's having problems with sound/midi in Drivewire on a Mac (none). Anyone know a way around this?

Bill P

Music from the Tandy/Radio Shack Color Computer 2 & 3
https://sites.google.com/site/dabarnstudio/
Bill Pierce
ooogalapasooo at aol.com




-----Original Message-----
From: Jayeson Lee-Steere <cocolistemail at titaniumstudios.com>
To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
Sent: Fri, Mar 8, 2013 4:06 am
Subject: Re: [Coco] XRoar Accuracy (was: Introduction)


>
>
> Daggorath is extremely timing sensitive and no emulator I've tried gets
> the attract sequence exactly right. I think. XRoar is very close to Coco 3
> videos available but I'm not sure which one is off. The sequence on XRoar
> is actually better than what shows on the Coco 3 - you can hear the
> wizard's image close by and it ends with a knight and stone giant in front.
> I suspect I will probably need to trace a real Coco with a logic analyzer
> to get things right. And that is where a North American Coco becomes
> important.
>

Following up on an earlier post of mine, I got hold of a USA Coco 1 and a
ran it with the Daggorath cartridge. It turns out that XRoar runs it, as
best I can tell, perfectly. On the other hand, the two reference videos I
have seen from the Coco 3 are slightly off, and as I mentioned above, not
quite as good. The Coco 3 being off is a bit of a surprise to me, as best I
can tell the only factors relevant to Daggorath are the timing of the
VSYNC interval and CPU.

Nice work Ciaran, the whole emulator is very well polished. (I'm still
looking forward to hooking up the logic analyzer for my work though).

- Jayeson Lee-Steere

--
Coco mailing list
Coco at maltedmedia.com
http://five.pairlist.net/mailman/listinfo/coco