[Mesa-dev] 3Dnow asm broken on the K6-III?
Hello all, We've received several reports lately on the Utah-GLX list about the 3Dnow asm code not working for people with K6-IIIs. It shows up under software fallback, so our guess is that it's a problem in the Mesa code. (that, and I don't think we have any 3Dnow in our drivers--just mmx for texture conversion) In particular see: http://lists.sourceforge.net/pipermail/utah-glx-dev/2000-March/001914.html And the associated screen shot for the fun effects on the projection matrix. :) I didn't see a report of this in the list archives, so I wanted to bring it to your attention. I don't know if this is a bug in the new processors, or if they've changed the instruction set somewhat. Can any experts comment? -ralph -- [EMAIL PROTECTED] utah-glx.sourceforge.net ___ Mesa-dev maillist - [EMAIL PROTECTED] http://lists.mesa3d.org/mailman/listinfo/mesa-dev
[Mesa-dev] Re: [utah-glx-dev] 3Dnow asm broken on the K6-III?
>Date: Thu, 30 Mar 2000 12:46:03 -0800 (PST) >From: Ralph Giles <[EMAIL PROTECTED]> >X-Sender: giles@localhost >To: [EMAIL PROTECTED] >cc: [EMAIL PROTECTED] >MIME-Version: 1.0 >Subject: [utah-glx-dev] 3Dnow asm broken on the K6-III? >X-Mailman-Version: 1.1 >List-Id: >X-BeenThere: [EMAIL PROTECTED] > >Hello all, > >We've received several reports lately on the Utah-GLX list about the 3Dnow >asm code not working for people with K6-IIIs. It shows up under software >fallback, so our guess is that it's a problem in the Mesa code. (that, and >I don't think we have any 3Dnow in our drivers--just mmx for texture >conversion) > >In particular see: > >http://lists.sourceforge.net/pipermail/utah-glx-dev/2000-March/001914.html > >And the associated screen shot for the fun effects on the projection >matrix. :) > > >I didn't see a report of this in the list archives, so I wanted to bring >it to your attention. I don't know if this is a bug in the new processors, >or if they've changed the instruction set somewhat. Can any experts >comment? > I'm having no trouble, and I've just verified that the 3DNow! functions are being used (at least in software Mesa). I also have a K6-III, but just purchased pretty recently (February). The errata show no corrections though. I think it's possible that people that are having problems are using an old version of Mesa. It's easy to forget to update that as well if you're working on glx, but I assume there are bugfixes in the Mesa 3.2 tree as well from time to time. Anyway, it can't hurt to update Mesa as well from time to time. I'd suggest that those who are having problems do this and see if anything changes. Justin A. Kolodziej This .signature intentionally left blank ___ Mesa-dev maillist - [EMAIL PROTECTED] http://lists.mesa3d.org/mailman/listinfo/mesa-dev
[Mesa-dev] Re: [utah-glx-dev] 3Dnow asm broken on the K6-III?
I can't really tell from the screen shot, but there seems to be portions that render correctly. The obvious bug would be improper placement of femms instructions resulting in a corrupted FP stack. Another problem with 3dnow is that the math is not IEEE 754 compliant so there are problems with mixing FP and 3dnow results in the same data set. Also, PFRCP with 1.0 doesn't give 1.0 as a result. This showed up on our windows driver with glOrtho ops. (I think Q2 status items were done this way). - Victor Vedovato Ralph Giles wrote: > > Hello all, > > We've received several reports lately on the Utah-GLX list about the 3Dnow > asm code not working for people with K6-IIIs. It shows up under software > fallback, so our guess is that it's a problem in the Mesa code. (that, and > I don't think we have any 3Dnow in our drivers--just mmx for texture > conversion) > > In particular see: > > http://lists.sourceforge.net/pipermail/utah-glx-dev/2000-March/001914.html > > And the associated screen shot for the fun effects on the projection > matrix. :) > > I didn't see a report of this in the list archives, so I wanted to bring > it to your attention. I don't know if this is a bug in the new processors, > or if they've changed the instruction set somewhat. Can any experts > comment? > > -ralph > > -- > [EMAIL PROTECTED] > utah-glx.sourceforge.net > > ___ > utah-glx-dev mailing list > [EMAIL PROTECTED] > http://lists.sourceforge.net/mailman/listinfo/utah-glx-dev ___ Mesa-dev maillist - [EMAIL PROTECTED] http://lists.mesa3d.org/mailman/listinfo/mesa-dev
[Mesa-dev] GLX_EXT_visual_rating problem
Hi All, Someone switched the GLX_EXT_visual_rating macro on in glx.h. This gives problems in src-glut/glut_distr.c since GLX_SLOW_VISUAL_EXT is not defined. Why was glx.h changed? What should be the definition of GLX_SLOW_VISUAL_EXT? Jouk Ceterum censeo tertium millennium post Christum natum anno MMI incepturum esse >--< Jouk Jansen [EMAIL PROTECTED] Technische Universiteit Delfttt uu uu ddd Nationaal centrum voor HREM tt uu uu dddd Rotterdamseweg 137 tt uu uu dd dd 2628 AL Delfttt uu uu dd dd Nederlandtt uu uu dddd tel. 31-15-2781536 tt uuu ddd >--< ___ Mesa-dev maillist - [EMAIL PROTECTED] http://lists.mesa3d.org/mailman/listinfo/mesa-dev
