IBM 5100

From: Tony Duell <>
Date: Mon Aug 16 15:42:55 2004

> You can't change the microcode of the PALM processor. That would be like
> changing the microcode of e.g. a MC68000.

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.

Received on Mon Aug 16 2004 - 15:42:55 BST

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