the slot in the SE/30 isn't NuBus; its an 68030 PDS slot On Wed, Jan 27, 2010 at 5:27 PM, Jeff Walther <[email protected]> wrote:
> Giving the discussion about building an SE/30 video card in "SE/30 > with Grayscale Adaper" it's own thread... > > So I was reading a bit in "Inside Macintosh" today and a question hit > me. If the address space for each NuBus slot is only 1 MB when > operating in 24 bit mode, and the SE/30 is limited to 24 bit > addressing, how is it possible to have a video card with more than 1 > MB of VRAM (actually considerably less because of ROM/firmware > addresses and register space)? > > Perhaps this was answered in Designing Cards and Drivers... and I've > forgotten it. I don't have my copy handy. Still, it's an > interesting enough and simple enough question to kick off some > discussion. > > How much VRAM was on the Exceed cards which were made for the SE/30? > > Jeff Walther > > -- > ----- > You received this message because you are a member of the Vintage Macs > group. > The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our > netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml > To post to this group, send email to [email protected] > To leave this group, send email to > [email protected]<vintage-macs%[email protected]> > For more options, visit this group at > http://groups.google.com/group/vintage-macs > > Support for older Macs: http://lowendmac.com/services/ -- ----- You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] To leave this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/
