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MUPDF/DGJPP test release! (Users)

posted by RayeR(R) Homepage, CZ, 22.02.2011, 17:26

> Im testing with this line:
>
> vesatest 640 480 16 lfb and yes.. the test run in LFB mode.. I get better
> result..
>
> The problem is that I cannot enable LFB in my computer.. Im trying your app
> MTRRLFBE.EXE and I cannt enable it.

Maybe there's a confusion.
LFB (Linear FrameBuffer) is a feature of VESA VBE 2.0 that means entire video memory in mapped to your CPU memory address space so no need to call BIOS routines to swap small windows and other mess.

MTRRs are special registers that set caching mode for some memory area (here for LFB area) According to wiki, MTRRs are on intel Pentium Pro and newer so you cannot set it on P1MMX.

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DOS gives me freedom to unlimited HW access.

 

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