Felix Kühling wrote: > I got also a bit worried about using string instructions without > clearing the direction flag. Is there any convention that prevents an > application from setting the direction flag. If not, it might happen > that esi and edi are decremented. > > On Fri, 12 Jul 2002 11:51:13 +0100 > José Fonseca <[EMAIL PROTECTED]> wrote: > > >>On Fri, Jul 12, 2002 at 04:28:25AM +0200, Felix Kühling wrote: >> >>>Hi, >>> >>>just updated after reading José's mail about the MACH64_NATIVE_VTXMFT >>>and tried running some apps. q3demo and quake2 crashed with multi >>>textures enabled: >>> >>>q3demo.x86: mach64_tris.c:518: mach64_draw_triangle: Assertion `vb == vbchk' failed. >>> >>>I found the problem in the COPY_VERTEX macro. The movsl instruction >>>doesn't decrement %ecx when there is no rep prefix, so you have to >>>decrease afterwards. Here's the fix: >>> >>> >>[...] >> >>It's now on CVS. >> >>I though that the %ecx decrement was already handled by the 'movsl' >>instruction and that the 'rep' prefix just added the conditional jump...
I missed the start of this... Is this something that should be fixed in the other drivers as well? Keith ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Gadgets, caffeine, t-shirts, fun stuff. http://thinkgeek.com/sf _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel
