rommel@Informatik.TU-Muenchen.DE (Kai-Uwe Rommel) (02/04/91)
Does anyone know if there exist 16-bit mono graphics/printer cards (i.e. Herccules compatible cards with 16-bit connector). Many people (including me) use such (8-bit) cards as debug screens together with VGA or SVGA cards. Unfortunately, these 8-bit cards cause the VGA/SVGA cards to switch to 8-bit mode too, even very sophisticated boards. This is because of the design of the ISA bus, when two cards with different width use a common 128k segment in the address space (here it is A000-BFFF). This causes performance of the VGA/SVGA to slow down a lot. Therefore, I would like to know if there are 16-bit Hercules cards available on the market. Thanks for any hint, Kai Uwe Rommel
jdb@reef.cis.ufl.edu (Brian K. W. Hook) (02/05/91)
In article <1991Feb4.124413.2874@newsserv.informatik.tu-muenchen.de> rommel@Informatik.TU-Muenchen.DE (Kai-Uwe Rommel) writes: >Does anyone know if there exist 16-bit mono graphics/printer cards (i.e. >Herccules compatible cards with 16-bit connector). Well, if you REALLY need the speed, the best you could hope for is to purchase a 16-bit VGA card with 256K and see if it is hardware selectable to do a Hercules emulation. A real basic VGA board, even by a name brand company, can be had for under 100 dollars now. Does that problem you describe occur if you plug the card in an 8-bit slot? I don't know exactly what you are talking about with that problem since I am not up too much on the ISA bus structure. Brian