
                                S3BugFix!


        Ebben a szmunkban az S3-as VESA-s, vagy PCI-os SVGA vezrl-
        krtykhoz, (legalbbis a rgebbiek, amelyek itt Magyarorszgon
        talltak vevre) talltok egy javtprogramot, mely a 32 bites
        tvitelt javtja, gyorstva a megjelentst.
        

        A konfigurci: AM486DX4-100 2x50MHz 
                        DSP86C805 VLB S3 krtya 805-s chippel
                        A bootols F5-el megszaktva, nincs
                        bent memriamenedzser.
        
        A program mg nincs a memriban: 

Video Speed  Version 3.00  Copyright (c) 1993,95 Dietmar Meschede

Testing VGA mode 13h (320x200x256) ...

 8-bit move     32 x 64 KB  =   2 MB    0.20 s   10.0 MB/s   163.8 frames/s
 8-bit write    32 x 64 KB  =   2 MB    0.20 s   10.0 MB/s
 8-bit read     16 x 64 KB  =   1 MB    0.40 s    2.5 MB/s

16-bit move     64 x 64 KB  =   4 MB    0.22 s   18.2 MB/s   297.9 frames/s
16-bit write    64 x 64 KB  =   4 MB    0.19 s   21.1 MB/s
16-bit read     32 x 64 KB  =   2 MB    0.40 s    5.0 MB/s

32-bit move    128 x 64 KB  =   8 MB    0.59 s   13.6 MB/s   222.2 frames/s
32-bit write   128 x 64 KB  =   8 MB    0.51 s   15.7 MB/s
32-bit read     64 x 64 KB  =   4 MB    0.78 s    5.1 MB/s

Moves are done from main memory to video memory.

  * * *  Jl lthat, hogy a 32 bites tvitel kisebb, mint a 16 bites. * * *


        A program a memriban van:


Video Speed  Version 3.00  Copyright (c) 1993,95 Dietmar Meschede

Testing VGA mode 13h (320x200x256) ...

 8-bit move     32 x 64 KB  =   2 MB    0.22 s    9.1 MB/s   148.9 frames/s
 8-bit write    32 x 64 KB  =   2 MB    0.22 s    9.1 MB/s
 8-bit read     16 x 64 KB  =   1 MB    0.40 s    2.5 MB/s

16-bit move     64 x 64 KB  =   4 MB    0.23 s   17.4 MB/s   284.9 frames/s
16-bit write    64 x 64 KB  =   4 MB    0.21 s   19.0 MB/s
16-bit read     32 x 64 KB  =   2 MB    0.40 s    5.0 MB/s

32-bit move    128 x 64 KB  =   8 MB    0.26 s   30.8 MB/s   504.1 frames/s
32-bit write   128 x 64 KB  =   8 MB    0.21 s   38.1 MB/s
32-bit read     64 x 64 KB  =   4 MB    0.40 s   10.0 MB/s

Moves are done from main memory to video memory.

        A 32 bites tvitel megfelel sebessget rt el. 
        A sebessgnvekeds azonban valamilyen grafikus alkalmazs,
        vagy jtk hasznlata sorn tnik szembe.

        A cikk elejn emltett javtprogramhoz egy videosebessg-
        tesztert(VIDSPEED.EXE) s egy DOS-os frisstt(REFRESH.EXE)
        is mellkelnk.

                                                        Zozo        
