ISA 8 bit CTVGA 256KB board \ VOGONS

ISA 8 bit CTVGA 256KB board

Posted on 2020-01-22, 15:43

Dimitri Offline

Rank Newbie

on the way, based on CHIPS F82C451/452

by datasheet 452 chip allows up to 1MB video ram, so it may be the only 8 bit board with VRAM more then on motherboard.

Posted on 2020-01-22, 20:26

Deksor Offline

Rank l33t

Maybe you could make a different design that would let you share some of the RAM (0KB to 768KB) as EMS or XMS 😁

Posted on 2020-01-23, 10:48

Dimitri Offline

Rank Newbie

not sure it is necessary, ems boards available on the market, may be next time I do LIM 3 EMS with SIMM72