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-------------------------  S3 Speed Up  Version 3.11  -------------------------
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This is the documentation for S3 Speed Up.  S3 Speed Up is
Copyright (c) 1994,97 Dietmar Meschede.  All rights reserved.


Contents
--------

1. Overview
2. Installation
3. Speed up
4. The S3 Speed Up package
5. Copyright, legal disclaimer and terms of use
6. The author


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

S3 Speed Up is a MS-DOS TSR program, which can speed up most banked VESA
modes (no text or 4 bits/pixel modes) and VGA mode 13h (320x200x256)
on S3 graphics cards.

S3 Speed Up requires S3 VBE/Core 2.0 (version 3.10 or higher).


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

You must install S3 VBE/Core 2.0 (version 3.10 or higher) in memory
before installing S3 Speed Up.

Simply type "S3SPDUP /LOAD" to install S3 Speed Up in memory.

Type "S3SPDUP VESA+" to install S3 Speed Up in memory and activate
banked VESA modes speed up.

For savety reasons S3 Speed Up is disabled at Windows(tm) start up and
shut down.  If you want to use S3 Speed Up under Windows(tm), you must
activate S3 Speed Up in each DOS box.

"S3SPDUP /?" shows a help screen.


3. Speed up
-----------

S3 Speed Up can speed up most banked VESA modes (no text or
4 bits/pixel modes) and VGA mode 13h (320x200x256).

To speed up these modes S3 Speed Up must temporary change the
PCI base address, which may cause problems!

E.g. programs using the S3d(tm) engine (native S3 ViRGE programs)
may or may not run, if banked VESA modes speed up is enabled.

The speed up of VGA mode 13h is not 'Mode X' compatible.  This means
that some programs (e.g. DOOM) will not work when the VGA mode 13h
speed up is enabled.

Only use VGA mode 13h speed up, if you are familiar with 'Mode X'!

Programs using VESA VBE/Core 2.0 linear frame buffer modes
(e.g. QUAKE) will not profit from banked VESA modes speed up.


4. The S3 Speed Up package
--------------------------

The S3 Speed Up package consists of the following 6 files:

  FILE_ID.DIZ   Short description.
  S3SPDUP.EXE   S3 Speed Up.
  S3SPDUP.TXT   Documentation for S3 Speed Up.
  S3SPDUP.HTM   Documentation for S3 Speed Up in HTML format.
  HISTORY.TXT   History of S3 Speed Up.
  HISTORY.HTM   History of S3 Speed Up in HTML format.


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

S3 Speed Up is Copyright (c) 1994,97 Dietmar Meschede.
All rights reserved.

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

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.


6. 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/
