7 Aug
2008
7 Aug
'08
12:02 p.m.
On Mon, Aug 4, 2008 at 1:21 PM, Jim Brain <brain at jbrain.com> wrote:
Did an MMU exist for the 8086?
Most of the PC compatible 8086/8088 machines in my collection have one
or two. The most common variety is on the graphics card to map
graphics memory into the address space of the processor. The second
most common would be EMS cards, which depending upon their vintage
could map 16kB pages of expanded memory into a 64k window (EMS
1.0-3.0) or remap any 16kB page in the processor address space to
expanded memory (EEMS or EMS 4.0).