psx4dc discussion

[zodttd]

If methods of implementing something are used through looking at GPL code, it can break GPL. But I believe the concept behind the method is free use. Basically, we use freely available documentation to determine how something works, not by past code. If we don't understand something, we figure it out. That documentation is free for whatever use. So I don't believe that issue comes into play.

[quzar]

Well, it's up to you. Nobody is going to *force* you to release the sources, but if you're only reason not to is because of the hassle of doing so, I'd hope that you could see the benefits that being open source offer.

[zodttd]

Thanks for understanding. I am strongly thinking through how to release the sources. I've been planning on doing it for awhile. I just have been delaying things until the code get's cleaned up. That plan can be accelerated.

I just didn't want the stress of what happened to PSX-P to happen to psx4all, as though they are a bit different situations, people might not understand that.

I would prefer open sourcing the project, but until you, nobody was interested in working on it. Every once and awhile someone wanted the sources, but more-so just to bug us. :P

[Darksaviour69]

is it ok that i try it? i'm just an admin not a coder.

can i take pics and videos of it for the site?

[wraggster]

yeah my cd writer is ****ed at the mo so i cant try it out

whats the speed and compatibility like.

[zodttd]

Hi...Sure it's ok to give it a try!

I tested the build above and it had a lot of errors which I'm still in the process of fixing. But it runs Tactics Ogre pretty well. :P

Still, it's very slow for some games such as Ridge Racer. I am in the process of removing the SH4 dynarec and using something a little more appropriate for the DC. The DC can only handle about 4MB of cache for a dynarec, and the way that one was designed, it won't be very helpful.

[quzar]

Hi...Sure it's ok to give it a try!

I tested the build above and it had a lot of errors which I'm still in the process of fixing. But it runs Tactics Ogre pretty well. :P

Still, it's very slow for some games such as Ridge Racer. I am in the process of removing the SH4 dynarec and using something a little more appropriate for the DC. The DC can only handle about 4MB of cache for a dynarec, and the way that one was designed, it won't be very helpful.

How big of a cache would be needed for it to be useful? I'm sure the memory usage could be cut down by at LEAST 1.5mb by the few things you've described about it (read: if SDL were removed)

[Kaiser]

I'm very impressed. Didn't see any apparent graphic glitches. Very nice for just a beta. Here is some pics I took playing Silent Hill. Ignore the some of the blurr as that would just be my cameras long exposure time. Everything looked flawless to me aside from the speed.

[Darksaviour69]

nice one kaiser, let get a load of pic by the end of the week(friday) before we news post them, that should give the dc scene a kick in the ass

[zodttd]

New build of psx4dc...

In Build #2 compatibility has changed, most likely becoming better. Performance has increased, but not enough to make things playable. It's about as fast as the GP2X release on average.

I removed the recompiler, and this is using a very optimized interpreter.

For those releasing videos of psx4dc's progress, definitely try out this release as it will most likely "look better".

There's a lot to be fixed and done for this port. Most likely psx4all will need to be improved quite a bit further still for psx4dc to become feasible, but it's definitely fun.