[Glide-devel] v5 3dnow

[Thomas J. M. <da...@ma...>]

If anyone cares:

Attached is a small patch to a recent CVS which I needed in order to get 
3dnow! working with my Voodoo5 card.  Overall, the card appears to be 
stable with all the things I tried (GL toy/screensever stuff, hg2, 
heretic2, a few free GL games) except for Rune (demo & full version both 
look like crap and are too slow above 800x600).  However, I know not 
what I am doing, so don't blame me if things don't work for you.

The following issues are covered by the patch:
  - Link problems:  The 3d-now! stuff is supposed to switch back to 
non-3d-now! if no CPU support is detected; the link stuff compiles the 
non-3d-now stuff out, though.  Also, xtexdl_3dnow was missing in the 
3dnow stuff.
  - Seg fault:  In xdraw2_inc.s, there was a place where %edx is assumed 
to be gc, even though it's a C entry point (and no global registers on 
i386).  Fixed to retrieve from stack.
  - Assembly syntax:  call %reg in xdraw2.s needed to be call *%reg.

I noticed an item on the sourceforge buglist to get 3dnow working on 
voodoo3; I don't know or care if the problems are the same there, but I 
wouldn't doubt it.

PS.  [ignore if underinformed crazed rants bother you] I hate 3dfx for 
duping me into buying this overpriced card by claiming they were going 
to release complete hardware docs, and then after putting it off with 
lies about prettying them up selling it off to nVidia, another company 
who lied about Linux support (I don't consider binary-only drivers 
support).   The only good thing about this card is that it's still fast 
& stable enough for now, except for the Rune thing, which I also blame 
on nVidia (providing a who-knows-how-compliant closed-source GLX - 
reminds me of their good friend MS).  I just wish hardware manufacturers 
would get out of the software business and just provide complete 
hardware specs (and maybe closed-source reference drivers if they want).

-- 
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  Thomas J. Moore, Hacker/SysAdmin | TV & video games have destroyed my mind
  inet:  da...@ma...    | unix ada asm c/c++ mcu ee amiga tired
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