> : The univbe driver that comes with the ICR2demo doesn't seem to
> : support my mach64 card (ATI Graphics Xpression). When I install it,
> : the display flickers and I get 2-3 fps instead of the 10 fps i get
> : without it.
> : Has anybody else tried to install univbe with this card?
> : Would it increase the frame rate if it worked?
> Read elsewhere in this group to try turning off the Linear Framebuffer.
> I did this and it now works with my ATI WinTurbo card. However, I
> didn't really see any improvement on frame rate. Maybe this is where
> the increase comes from (enabling the Linear Framebuffer). Oh well...
You bet. A linear frame buffer is the same as flat memory, ie memory
mapped in one segment(one heap) as opposed to segmented memory where
you have, on the Intel architecture, 64K segments.
Having all the memory in one pool speeds applications up considerably
since a lot less overhead is needed to manage memory buffers, dynamic
allocation, etc.
Linear frame buffer can only be utilized when in protected mode.
ICR I, ICR II, NASCAR, Doom, etc, uses protected mode.
The DOS4/GW banner you see when you start the games means that the
program was compiled with the Watcom C / C++ compiler and that
it uses DOS4/GW protected mode run time system.
-- Terje Wold Johansen "I am your inferior superior." Speaking --
-- Dept. of Informatics, University of Oslo, Norway myself! --