On Mon, Aug 16, 2004 at 09:42:55PM +0100, Tony Duell wrote:
> It is, of course, possible to make a processor where the microcode can be
> changed by the user. Many early graphics workstations (the PERQ, many of
> the Xerox machines, etc) had microcode that was loaded from disk when the
> machine booted. WCS (Writeable Control Store) options were available for
> a few models of PDP11 to allow the user to write microcode.
Somewhere at home I have the instruction card for twiddling KDF11 microcode.
-ethan
--
Ethan Dicks, A-130-S Current South Pole Weather at 16-Aug-2004 21:20 Z
South Pole Station
PSC 468 Box 400 Temp -83.5 F (-64.2 C) Windchill -129.7 F (-89.90 C)
APO AP 96598 Wind 15.6 kts Grid 035 Barometer 669.6 mb (11022. ft)
Ethan.Dicks_at_amanda.spole.gov http://penguincentral.com/penguincentral.html
Received on Mon Aug 16 2004 - 16:22:47 BST