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

  This zipfile contains reconstructed source code for the following GEM/1
video drivers (series 3, corresponding to GEM 1.2). 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
===========+==========+============+=========+===============================
SDATT3.EGA |        2 | 640x400    |  2      | AT&T 6300, Toshiba 3100
SDCGA3.CGA |        1 | 640x200    |  2      | CGA and compatibles
SDEH83.EGA |        1 | 640x350    |  8      | EGA colour
SDEHF3.EGA |        1 | 640x350    | 16      | EGA colour
SDEHM3.EGA |        1 | 640x350    |  2      | EGA mono 
SDEL83.CGA |        1 | 640x200    |  8      | EGA colour with CGA monitor
SDELF3.CGA |        1 | 640x200    | 16      | EGA colour with CGA monitor
SDHRC3.EGA |        1 | 640x350    |  2      | Hercules
SDKHM3.EGA |        1 | 720x350    |  2      | IBM 3270 PC
SDP643.VGA |        3 | 640x480    | 16      | Quadram Prosync
SDP753.VGA |        3 | 752x410    | 16      | Quadram Prosync
SDPSC3.VGA |        2 | 640x480    | 16      | VGA 
SDPSM3.VGA |        2 | 640x480    |  2      | MCGA 
SDT103.VGA |        1 | 640x200    |  2      | Tandy 1000
SDT123.VGA |        1 | 640x200    |  2      | Tandy 1200
SDT203.VGA |        1 | 640x400    |  8      | Tandy 2000 colour
SDT2M3.VGA |        1 | 640x400    |  2      | Tandy 2000 mono
===========+==========+============+=========+===============================

  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
=================+===================
 SDATT3.EGA      | n/a
 SDCGA3.CGA      | IBMCHMP3.SYS
 SDEH83.CGA      | IBMEH8P3.SYS
 SDEHF3.CGA      | IBMEHFP3.SYS
 SDEHM3.CGA      | IBMEHMP3.SYS
 SDEL83.CGA      | IBMEL8P3.SYS
 SDELF3.CGA      | IBMELFP3.SYS
 SDHRC3.CGA      | HERMONP3.SYS
 SDKHM3.EGA      | KINGHMP3.SYS
 SDP643.VGA      | n/a
 SDP753.EGA      | n/a
 SDPSC3.VGA      | n/a
 SDPSM3.VGA      | n/a
 SDT103.CGA      | TD1000H3.SYS
 SDT123.CGA      | TD1200H3.SYS
 SDT203.VGA      | TD2000H3.SYS
 SDT2M3.VGA      | TD2000M3.SYS
