Search found 11 matches

by Bluddy
Thu Oct 29, 2009 11:22 pm
Forum: PSP Development
Topic: Bug in psp-gcc?
Replies: 1
Views: 1653

Bug in psp-gcc?

I'm pretty sure I found a bug in psp-gcc (or actually in ld). It may be with the specific psp-gcc/ld bfd or it may be in binutils itself. I'm doing some unusual linking in Scummvm to get dynamic plugins going. I borrowed the method from the Dreamcast Scummvm code, where this works fine. Essentially,...
by Bluddy
Mon Oct 26, 2009 12:47 am
Forum: PSP Development
Topic: Flicker problem driving me crazy!
Replies: 7
Views: 8821

Your problem description sounds like a cache problem. Don't you need to flush the dcache between setting the vertices and passing them to the sce functions? Jim I believe that since I get the vertices from sceGuGetMemory, the addresses are in the uncached address space, so there's no need to flush....
by Bluddy
Sun Oct 25, 2009 4:03 pm
Forum: PSP Development
Topic: Flicker problem driving me crazy!
Replies: 7
Views: 8821

Cory, it used to be aligned to 16 -- I just raised it to 64 thinking it might fix the problem. Here's some more info, courtesy of ld's mapfiles and ld scripts among others: First of all, I can rule out the vsync idea. I tested to see what a forced vsync-less refresh looks like, and it looks nothing ...
by Bluddy
Fri Oct 23, 2009 7:17 pm
Forum: PSP Development
Topic: Flicker problem driving me crazy!
Replies: 7
Views: 8821

Tried swapping the lines. It didn't work, but thanks for the idea.
by Bluddy
Wed Oct 21, 2009 5:22 pm
Forum: PSP Development
Topic: Flicker problem driving me crazy!
Replies: 7
Views: 8821

OK I see there are no takers. Sorry for now putting the code in a proper box. Let me add a couple of things I've figured out through my investigations: the code can run either in 320x200 mode (which is usually adjusted to be fullscreen on the PSP) or 640x480 mode (which is shrunk to fit using the GE...
by Bluddy
Mon Oct 19, 2009 6:09 pm
Forum: PSP Development
Topic: Flicker problem driving me crazy!
Replies: 7
Views: 8821

Flicker problem driving me crazy!

I'm dealing with what has to be one of the most annoying, stubborn bugs I've ever had. Every time I think I got it, it goes away and then comes back later. I'm going over everything with a fine-tooth comb and I just can't get to the root of the problem. The problem is that I get BAD flicker, but onl...
by Bluddy
Wed Sep 30, 2009 1:55 am
Forum: PSP Development
Topic: GDB issue
Replies: 1
Views: 1426

GDB issue

I have some stuff GDB could really help me with. Low level debugging with the shell is becoming a pain. I tried to set it up with eclipse the way that is described on the minpspw site. I also compiled my ELF with -g. However, what I get is that my threads are stuck in a running state, while I see no...
by Bluddy
Sun Aug 02, 2009 6:23 pm
Forum: PSP Development
Topic: Media Engine?
Replies: 165
Views: 169548

Sorry for bumping this, but I'm really interested to know if anyone has any idea why standby won't work with ME access. This is probably the one major barrier preventing ME code from being used in more homebrew (the other is kernel mode, yes). Since the ME looks like just another MIPS core, can't we...
by Bluddy
Thu Aug 02, 2007 5:14 pm
Forum: PSP Development
Topic: dosbox
Replies: 698
Views: 661115

Wally4000, which dos shell? Do you mean the classic dos 4.0 shell? where can i get whatever you're using?
by Bluddy
Sun Jul 29, 2007 6:25 pm
Forum: PSP Development
Topic: dosbox
Replies: 698
Views: 661115

CrazyC, can you check why dos navigator doesn't work with 0.70? I (like many others) use it as my 'gui' to access my games and it hangs on start.
by Bluddy
Sun Apr 22, 2007 9:48 pm
Forum: PSP Development
Topic: dosbox
Replies: 698
Views: 661115

reconsidering 0.70?

crazyc, dosbox 0.70 seems to have some heavy optimizations speed-wise that might make further optimization of the psp version unnecessary. Isn't it possibly worthwhile to work on that and try reduce the memory footprint, rather than optimizing a slower version of dosbox?