8 Jan
2016
8 Jan
'16
7:33 p.m.
On Thu, Jan 7, 2016 at 2:08 PM, Brent Hilpert <hilpert at cs.ubc.ca> wrote:
On 2016-Jan-07, at 11:13 AM, nierveze wrote:
undergraduate. (The
fact that it was for an S-100 system is sufficient
suggestion of just how long ago....) Someone was doing medical image
processing, IIRC.
--
Ian S. King, MSIS, MSCS, Ph.D. Candidate
The Information School <http://ischool.uw.edu>
Dissertation: "Why the Conversation Mattered: Constructing a Sociotechnical
Narrative Through a Design Lens
Archivist, Voices From the Rwanda Tribunal <http://tribunalvoices.org>
Value Sensitive Design Research Lab <http://vsdesign.org>
University of Washington
There is an old Vulcan saying: "Only Nixon could go to China."
first am 1 on the correct channel??
I have several S100 boards , found 25 years ago,
...
I wonder how it is possible to address more than
64K (rams+eprom)with a
Z80 .
S100 memory boards often incorporated a bank-switching scheme to allow for
multiple 64K banks in the system.
The convention was a dedicated I/O port number (0x40?) to which one writes
a bit pattern to select the desired bank.
Such memory boards have configuration switches to set their bank ID/number.
For a system to use this scheme, all the memory boards in the system are
to be listening on that same port, waiting to recognise their ID.
I designed and built such a board way, way back when I was an