
-------------------------------------------------------------------------------
-----------------------  S3 VBE/Core 2.0  Version 3.18  -----------------------
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This is the documentation for S3 VBE/Core 2.0.  S3 VBE/Core 2.0 is
Copyright (c) 1994,97 Dietmar Meschede.  All rights reserved.


Contents
--------

1. Overview
2. Installation
3. Low resolution video modes
4. Known problems
5. The S3 VBE 2.0 package
6. Copyright, legal disclaimer and terms of use
7. The author


1. Overview
-----------

VESA VBE/Core 2.0 is an extension of the VESA VBE 1.2 standard
(VBE = Video BIOS Extension).

S3 VBE/Core 2.0 is a MS-DOS TSR program, which installs a VESA VBE/Core 2.0
for S3 graphics cards with a VESA VBE 1.2.

S3 VBE/Core 2.0 supports the following S3 graphics chips:

  Vision864, Vision868, Vision964, Vision968, Trio32, Trio64, Trio64V+,
  Trio64UV+, Trio64V2/DX, Trio64V2/GX, ViRGE, ViRGE/VX, ViRGE/DX, ViRGE/GX.


2. Installation
---------------

Type "S3VBE20 /?" to display a help screen.

One way to install S3 VBE/Core 2.0 on your system is to unzip S3VBE318.ZIP
to the directory C:\S3VBE20 and insert the line

  C:\S3VBE20\S3VBE20 /INSTALL

in your AUTOEXEC.BAT.


3. Low resolution video modes
-----------------------------

S3 VBE/Core 2.0 provides the following low resolution video modes:

  320 x 200 x 8 @ 70 Hz,
  320 x 240 x 8 @ 68 Hz,
  320 x 400 x 8 @ 70 Hz,
  320 x 480 x 8 @ 68 Hz,
  400 x 300 x 8 @ 74 Hz,
  512 x 384 x 8 @ 82 Hz.

If the original video BIOS supports VBE mode 10Dh (320x200x15) and 10Eh
(320x200x16), S3 VBE/Core 2.0 provides two additional video modes:

  320 x 240 x 15,
  320 x 240 x 16.

Since these low resolution modes use non-standard CRT parameters
there is a remote possibility that these modes may not work or
may damage defective monitors.


4. Known problems
-----------------

There may be problems when using VESA VBE/Core 2.0 linear frame
buffer modes under Windows 95 with a Trio64V+ graphics chip.

These problems can be solved by disabling screen clears during
VBE mode sets.  Type "S3VBE20 CLEAR-" to disable screen clears
during VBE mode sets.  Most applications will write their own
image into video memory and don't really need a screen clear.


5. The S3 VBE 2.0 package
-------------------------

The S3 VBE 2.0 package consists of the following 6 files:

  FILE_ID.DIZ   Short description.
  S3VBE20.EXE   S3 VBE/Core 2.0.
  S3VBE20.TXT   Documentation for S3 VBE/Core 2.0.
  S3VBE20.HTM   Documentation for S3 VBE/Core 2.0 in HTML format.
  HISTORY.TXT   History of S3 VBE/Core 2.0.
  HISTORY.HTM   History of S3 VBE/Core 2.0 in HTML format.


6. Copyright, legal disclaimer and terms of use
-----------------------------------------------

S3 VBE/Core 2.0 is Copyright (c) 1994,97 Dietmar Meschede.
All rights reserved.

The author (Dietmar Meschede) excludes any warranties with respect to
S3 VBE/Core 2.0.  The author shall have no liability for damages arising
out of or resulting from the use or misuse of S3 VBE/Core 2.0.

All trademarks used in this documentation are property of their respective
owners.

This package is Freeware.  You may use, copy and distribute this
package, if you don't modify the files in this package in any way
and only distribute the original package with all files included.


7. The author
-------------

Dietmar Meschede

E-Mail: mesched@math.uni-muenster.de
WWW:    http://www.uni-muenster.de/math/u/mesched/
FTP:    ftp://ftp.uni-muenster.de/pub/win95/meschede/
