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Shamus

Member Since 7 Nov 2003
OFFLINE Last Active Today, 4:23 PM

Posts I've Made

In Topic: Virtual Jaguar 2.0.0 released!

Wed May 23, 2012 7:03 AM

Unofficial releases (such as the rev you're using now) are bound exhibit problems, YMMV, etc.

With that revision I've finally gotten the DSP/JERRY into its own thread. The gains are quite dramatic in terms of audio quality alone and I fully intend to keep pushing on in this direction; the ultimate goal being that all the Jaguar subsystems will run in their own independent threads.

That said, there are still some problems that need to be ironed out before doing a regular release (which will be 2.1.0). The system shutdown you're experiencing is a new one, and I have no idea why it's doing it. :P

In Topic: Non-working Fractal demos?

Thu May 17, 2012 10:25 AM

A built-in debugger for VJ would be nice. I wonder when someone will write one? ;)

Well, at first I thought that the $60 $04 was a branch too, but if you load it into the cartridge space and run it there, pressing the B button on the controller causes the system to crash. The clue is in the payload size (@ byte $02, big endian); take that into account and then the bra.s disappears.

However, if you load and run the thing at $460 (skipping the $20 bytes in front), it works and pressing the B button causes the thing to reset itself instead of crashing. :)

In Topic: Non-working Fractal demos?

Wed May 16, 2012 9:21 AM

Well, Jag Server files are a really strange format: they can have multiload sections, tell the jag to sit and wait for other commands, etc. I'm glad that nobody is making these anymore. :)

@ggn: Thanks for the heads-up vis-a-vis the GemDOS header; I never would have guessed that's what it was. The header is $20 bytes long in this case, and the load/run address is at byte $1C in little endian. So the load/run address for these demos is at $460. :)

The size of the payload is at byte $02 in big endian. What a strange format. I wonder what tool it was that was used to make them... :?

In Topic: Non-working Fractal demos?

Tue May 15, 2012 4:09 PM

Actually, they are not ROM files, they are either some kind weird Jag Server file or something else entirely. The next iteration of VJ will handle them properly. :)

In Topic: Prince of Persia source code

Wed May 9, 2012 8:16 AM

Looks like the rest (or just some?) of the missing files were posted on Github recently. :)

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