VVESA.TXT                                              January 22, 1993
for VESA Super VGA BIOS Extension VVESA.COM

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VVESA.COM  is a Terminate and Stay Resident (TSR) program. It  is
the implementation of the VESA Super VGA BIOS Extension  Standard
#VS911022.

VVESA  is not a driver. It is a program which enables your  video
board  to  be used with VESA compatible  software.  Consult  your
software manual or your software manufacturer's Technical Support
to see if a VESA driver is available for your software.

Install your software for VESA Super VGA.  Then run VVESA  before
running  your VESA compatible software.  If you prefer,  a  batch
file  can be written to invoke VVESA and then your software.  The
resident portion of VVESA only consumes a small amount of memory.
To run Window 3.1 with VESA 800x600 16-color driver in the  7-bit
video  mode  6A,  VVESA is not required.  To  remove  VVESA  from
memory, type: VVESA OFF.

Here is a list of VVESA advanced command line keywords:

     OFF: Remove the driver from the system memory.

     PAN: Enable Linear Address
          It  allows  user  to pan or scroll  within  the  entire
          display  memory. Standard VGA will wrap around  at  the
          end of 64K in planar mode.  Linear address is  disabled
          at default.

     55rw Force single page read & write mode
          The Write Page number is set to Read Page number when a
          display  mode is initialized.  (Note that only  display
          controller  28800-5 or higher is default to  dual  page
          mode,   i.e. the writeable and readable windows can  be
          programmed independently)

     For  example,  to enable driver to view  display  memory  at
     upper 512KB, type:

                    VVESA PAN      <enter>

     Then run your VVESA application.


The following VESA modes are supported:

     MODE      RESOLUTION        MEMORY    MEMORY
     NUMBER    /COLORS           REQUIRED  MODEL

     100h      640x400 /256      512KB     packed pixel
     101h      640x480 /256      512KB     packed pixel
     102h      800x600 /16       256KB     4-plane planar
     103h      800x600 /256      512KB     packed pixel
     104h      1024X768 /16      512KB     4-plane planar
     105h      1024X768 /256     1MB       packed pixel
     108h      80x60/16                    Text mode
     109h      132x25/16                   Text mode
     10Ah      132x43/16                   Text mode
     110h      640x480/32768     1MB       packed pixel
     113h      800x600/32768     1MB       packed pixel

Note that some display adapters may not be capable of  displaying
all  the  modes listed above.  Check the user's  manual  of  your
display adapter for the available modes.


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VESATEST Utility

There is a utility program to check which modes are supported on
your display adapter,  run VESATEST after loading VVESA.  This
utility will provide a listing of all VESA modes available on
your card.


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Programmers  requiring more information about VESA standards  may
obtain copies of the specifications by writing or calling:

              VESA
              1330 South Bascom Ave., Suite D
              San Jose, CA 95128
              (408) 971-7525