*******************************************************
          ATI Wonder 256c PM drivers.   Version 1.01 (08/23/1992)
          *******************************************************

                       (c) 1992 Joel Armengaud
                         All rights reserved
                                   
                                   
                                   
                                   
************
Introduction
************
                                   
     This package contains OS/2 Presentation Manager drivers for ATI
VGA Wonder video adapters, for the 800x600x256c and 1024x768x256c
resolutions. They have been tested on IBM OS/2 2.0. From version 1.01,
they no longer work on OS/2 1.x.
                                   
     Files in this package:

                      ati800-8.dll (800x600x256 driver)
                      at1024-8.dll (1024x768x256 driver)
                      readme.txt
                      svgadata.pmi

     Please read this file carefully before trying to install the PM
drivers. If you don't, OS/2 could become corrupted forcing you to
reinstall it.
     
     IMPORTANT: I (the author) have absolutely no contact with ATI
Technologies Inc. I have developed this driver during my spare time,
and I am distributing it as FREEWARE. However I will greatly
appreciate any donation, since I have spent a considerable amout of
time (40000 ASM lines...).
     
     I would like to thank all the beta-testers, who helped me to make
this driver work with most ATI Wonder models.
     Special thanks to Ted Richards who helped me to fix the 1.00
problems.
     
*******
Author:
*******

     Joel Armengaud

E-Mail:    Internet/Bitnet: joe2@vnet.ibm.com
           Compuserve: 100030,152 (100030.152@compuserve.com)
           (Try to send to both)

P-Mail:    Joel Armengaud
           Le grand Lot
           13720 Belcodene
           FRANCE
     
     
     
     
**********
Disclaimer
**********

     BY INSTALLING THIS DRIVER ON YOUR SYSTEM YOU INDICATE YOUR
AGREEMENT TO THE FOLLOWING TERMS AND CONDITIONS. IF YOU DO NOT AGREE
TO THEM YOU ARE NOT ALLOWED TO USE THIS PROGRAM.
     THESE DRIVERS AND THE ACCOMPANYING PROGRAMS AND DOCUMENTATION ARE
DISTRIBUTED AS IS. JOEL ARMENGAUD (THE AUTHOR) MAKES NO WARRANTY OF
ANY KIND, EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE,
WITH RESPECT TO THIS SOFTWARE AND DOCUMENTATION. IN NO EVENT SHALL THE
AUTHOR BE LIABLE FOR ANY DAMAGES, INCLUDING LOST PROFITS, LOST
SAVINGS, OR ANY OTHER INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT
OF THE USE OF OR THE INABILITY TO USE THIS PROGRAM, EVEN IF THE AUTHOR
HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, OR FOR ANY CLAIM
BY ANY OTHER PARTY.




************
Installation
************

     Let's suppose you want to install the 800x600x256c driver. The
file ATI800-8.DLL is a replacement for the OS/2 file DISPLAY.DLL.
     From version 1.01, the driver uses BVHSVGA to switch to the SVGA
mode. So you should install SVGA support BEFORE installing the PM
driver. Type SVGA ON in a full screen DOS session to do so (for
further information, refer to the OS/2 V2 documentation). Then when
you type SVGA STATUS (in a full screen dos session), OS/2 should
report that you have an ATI chipset.
     
      To install the PM driver complete the following steps:

1) Uncompress the ATI800-8.DLL somewhere on your disk.

2) The file DISPLAY.DLL is usually in the \OS2\DLL directory of the
   boot drive. But you CAN'T replace this file while OS/2 is running.
   So boot DOS to replace it. The key point is to always keep a backup
   of this file, in case the ATI driver would not work.

     So for instance:

   C:>CD \OS2\DLL
   C:\OS2\DLL> REN DISPLAY.DLL DISPLAY.OLD
   C:\OS2\DLL> REN ATI800-8.DLL DISPLAY.DLL

     Note: if you installed OS/2 on an HPFS partition, you will have
to boot on the installation diskette. When the IBM logo appears, press
ESCAPE to have access to an OS/2 command prompt. Then you will be able
to see your HPFS disk, and replace the DISPLAY.DLL file.

3) Reboot your computer. If the PM screen doesn't show up in 800x600,
   then there might be a problem with your ATI adapter... Replace the
   DISPLAY.DLL file with the old display driver you backed up,
   DISPLAY.OLD. Try to contact me to fix the problem.

Known problems with the 1024x768x256 driver:

     For unknown reasons, the BVHSVGA DLL is not able to switch to a
non-interlaced 1024x768x256 mode. If this mode doesn't work on your
computer, try to replace the SVGADATA.PMI file in the \OS2 directory
by the one included in this package.
     Also, due to a bug in VSVGA.SYS, you may have problems with
"twinkling" colors. Should this happen, try to open a FULL SCREEN DOS
session just after booting.

******************
Known limitations:
******************

     The 256-color drivers do not work on old ATI Wonder adapters
(chip rev 1, without dual-page mode).
     For the 1024x768x256 resolution, you need 1Mb on your video card.
     Warning: a 1024x768 background picture consumes 768Kb of main
memory! I do not recommend such pictures if you don't have at least
10Mb of memory.
     These drivers are not real 2.0 drivers: no new icon pointers, no
palette manager functions, etc. I am still waiting for IBM to provide
me 2.0 sample source code...


********
History:
********

Version 1.01:

     Fixed: small dots outside window, when openin a system menu.
     Fixed: problem with large bitmap fonts (the "Congratulation"
string in Klondike...).
     No longer needs a patch program to accomodate different ATI
adapters. It now uses BVHSVGA to switch to hi-res mode.
     Speed optimization of the 12-width AVIO fonts.

Version 1.00:

     First version

End of README.TXT file.