X Window server for NEC 7220

Original Message: Date: Fri, 10 Aug 2012 13:53:41 -0400 From: "Andrew Lynch" <LYNCHAJ at yahoo.com> .... The NEC uPD7220 readily adapts itself to the S-100 bus and provides a nice VGA monitor compatible bitmap. However it is completely non-VGA compatible and really is as different from the MC6845 derivative as can possibly exist. It uses a totally different approach down to the philosophical theory of design! If you or anyone else has some insight on how to implement a register compatible SVGA on the S-100 bus I am very willing to listen! Thanks and have a nice day! Andrew Lynch -------Reply:------- Isn't it always the way... a couple of weeks ago I finally threw out about 4" worth of detailed OEM documentation about designing for and implementing PCChips VGA chips, among others... The NCR Decision Mate (for one) used the 7220 and I even still have some of the guts of one including the video board if it's any use to anyone. IIRC there were some drivers etc. to make them semi-compatible with the PC; maybe you can find something useful among the NCR crowd?