GEM 1.x video drivers
=====================

  This zipfile contains reconstructed source code for the following GEM/1
video drivers (series 2, corresponding to GEM 1.1). The drivers fall into 
three categories:

1. Drivers which I can compare to the original GEM/1 drivers, to be sure 
  they exactly match.

2. Drivers for which I haven't got the original, but which I can test. These
  may not be the same as the originals (or, like the VGA driver, may be 
  backports of drivers for which an original never existed), but it's a 
  good bet that they work.

3. Drivers where I haven't got the original and can't test, so I've no idea
  if they even work.

Driver     | Category | Resolution | Colours | Supported hardware
===========+==========+============+=========+===============================
SDATT2.EGA |        2 | 640x400    |  2      | AT&T 6300, Toshiba 3100
SDCGA2.CGA |        1 | 640x200    |  2      | CGA and compatibles
SDEH12.EGA |        1 | 640x350    |  2      | EGA colour
SDEH82.EGA |        1 | 640x350    |  8      | EGA colour
SDEHF2.EGA |        1 | 640x350    | 16      | EGA colour
SDEHM2.EGA |        1 | 640x350    |  2      | EGA mono 
SDEL82.CGA |        1 | 640x200    |  8      | EGA colour with CGA monitor
SDELF2.CGA |        1 | 640x200    | 16      | EGA colour with CGA monitor
SDHRC2.EGA |        1 | 640x350    |  2      | Hercules
SDKHM2.EGA |        2 | 720x350    |  2      | IBM 3270 PC
SDP642.VGA |        3 | 640x480    | 16      | Quadram Prosync
SDP752.VGA |        3 | 752x410    | 16      | Quadram Prosync
SDPSC2.VGA |        2 | 640x480    | 16      | VGA 
SDPSM2.VGA |        2 | 640x480    |  2      | MCGA 
===========+==========+============+=========+===============================

  Note that because I've worked backwards from the GEM/3 driver source 
tree, I've retained the GEM/3 driver naming convention; the real GEM/1
drivers have different names:

GEM/3 style name | GEM/1 style name
=================+===================
 SDATT2.EGA      | n/a
 SDCGA2.CGA      | IBMCHMP2.SYS
 SDEH12.CGA      | IBMEH1P2.SYS
 SDEH82.CGA      | IBMEH8P2.SYS
 SDEHF2.CGA      | IBMEHFP2.SYS
 SDEHM2.CGA      | IBMEHMP2.SYS
 SDEL82.CGA      | IBMEL8P2.SYS
 SDELF2.CGA      | IBMELFP2.SYS
 SDHRC2.CGA      | HERMONP2.SYS
 SDKHM2.EGA      | n/a
 SDP642.VGA      | n/a
 SDP752.EGA      | n/a
 SDPSC2.VGA      | n/a
 SDPSM2.VGA      | n/a
