Dec 282017
VGA256 is a reverse-engineered BGI driver for Orchard's Designer VGA.
File C-256VGA.ZIP from The Programmer’s Corner in
Category Miscellaneous Language Source Code
VGA256 is a reverse-engineered BGI driver for Orchard’s Designer VGA.
File Name File Size Zip Size Zip Type
COLORTST.C 3861 1387 deflated
COLORTST.PRJ 38 38 stored
MAKEOBJ.BAT 47 47 stored
SIMPLE.C 508 269 deflated
SIMPLE.PRJ 36 36 stored
UPDATE.DOC 1379 617 deflated
VGA256.BGI 3523 2244 deflated
VGA256.H 1094 454 deflated
VGA256.OBJ 3613 2316 deflated
VGAEXTRA.H 997 351 deflated
VGAEXTRA.OBJ 345 316 deflated

Download File C-256VGA.ZIP Here

Contents of the UPDATE.DOC file

Markham Thomas Feb. 3, 1989

VGA256.BGI a reverse-engineered BGI driver for Designer VGA

This is an update to my BGI driver ORCHVGA.OBJ. I now fully support
the BGI file format. This means that a programmer can choose either
a dynamically loaded BGI driver or a linked-in OBJ driver.
I separated the autodetect component of my driver from the BGI file.
It is found in VGAEXTRA.OBJ. This allows you to write your own autodetect
function to replace mine (mine can't determine if you have a Designer card).

P.S. If I can ever find the time I would like to try this driver on
Turbo Prolog. If anyone succeeds let me know......

Include Files:
VGA256.BGI - The BGI driver.
VGA256.OBJ - The OBJ version as created by BGIOBJ.EXE.
VGA256.H - The include file for use of my BGI driver.
VGAEXTRA.OBJ - The OBJ file containing Autodetect & misc..
VGAEXTRA.H - The include file for use of VGAEXTRA.OBJ
MAKEOBJ.BAT - Simple bat file to convert the BGI to OBJ.
SIMPLE.C - C demo of my driver linked into code.
COLORTST.C - C demo of my driver used in BGI format.
*.PRJ - The project files for the above C programs.

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