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1992-01-15
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2KB
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34 lines
IBM PS/2 Model 25SX Graphics Driver VESA TSR
(C) 1991,92 International Business Machines Corporation
developed for IBM by Tyler Software
Version 1.0
The graphics adapter on your PS/2 Model 25SX is actually an advanced
video adapter with 512K of on-board video memory that supports "SuperVGA"
modes beyond that of earlier VGA adapters.
VESA.EXE is a TSR ("Terminate-and-Stay-Resident") program that gives
VESA-aware application programs access to these SuperVGA video modes
through the industry-standard VESA interface. Once VESA.EXE has been
loaded on your system, VESA-aware application programs will be able to
use the following additional VESA modes on your PS/2:
640x400 256-color graphics mode
640x480 256-color graphics mode
132-column x 25-row text mode
To run this program, simply install VESA.EXE somewhere along your DOS
path and type 'vesa' at the DOS prompt. Alternatively, VESA.EXE can be
called from a batch file, such as AUTOEXEC.BAT.
VESA.EXE may also be used on other IBM PS/2 systems, such as the PS/2
Model 40, 35, 56, and 57, that use the same advanced graphics adapter
as that on the PS/2 Model 25SX. Note that many of these other systems
are limited to 256K of on-board video memory. When run on those systems,
VESA.EXE does not activate the 640x480x256 mode.
The easiest way to find out if your particular PS/2 has the appropriate
graphics adapter is to run VESA.EXE on it - VESA.EXE will politely refuse
to load if it can't locate an adapter compatible with that on the PS/2
Model 25SX.