HLL Computers

From: Sellam Ismail <foo_at_siconic.com>
Date: Tue Mar 6 20:51:09 2001

On Tue, 6 Mar 2001, Bruce Ray wrote:

> And of course the WCS - Writable Control Store - feature of Data
> General Eclipse computer starting with the S/130 system permitted
> dynamic creation of your own instruction set. The microcode is
> downloadable while the system is operating, so the instructions could
> be changed on-the-fly. The microcode word is 56-bits long and
> described in several DG documents, including a rather well written
> "how to program" manual. Not a high-profile series of microprogrammed
> systems, but custom microcode was invaluable in many projects.

Don't forget, the floppy diskette was invented by IBM as a medium to
distribute microcode on ;)

Sellam Ismail Vintage Computer Festival
International Man of Intrigue and Danger http://www.vintage.org
Received on Tue Mar 06 2001 - 20:51:09 GMT

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