Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site watdcsu.UUCP Path: utzoo!watmath!watnot!watdcsu!herbie From: herbie@watdcsu.UUCP (Herb Chong [DCS]) Newsgroups: net.arch Subject: Re: RISC/CISC/microcode: (IBM mainframes) Message-ID: <1500@watdcsu.UUCP> Date: Wed, 26-Jun-85 18:04:07 EDT Article-I.D.: watdcsu.1500 Posted: Wed Jun 26 18:04:07 1985 Date-Received: Thu, 27-Jun-85 05:08:33 EDT Reply-To: herbie@watdcsu.UUCP (Herb Chong [DCS]) Organization: U of Waterloo Lines: 17 unless i've been terribly mislead all these years, IBM's 370 machines keep their microcode in RAM and will continue to do so. many of the hardware assist features are because of microcoded handling of operating system functions. if they find a bug, then the microcode is replaced. is there a good reason for keeping microcode for a mainframe in ROM given the use that i have mentioned above? if this topic has already been covered to death sometime in the past, send e-mail, please. Herb Chong... I'm user-friendly -- I don't byte, I nybble.... UUCP: {decvax|utzoo|ihnp4|allegra|clyde}!watmath!water!watdcsu!herbie CSNET: herbie%watdcsu@waterloo.csnet ARPA: herbie%watdcsu%waterloo.csnet@csnet-relay.arpa NETNORTH, BITNET, EARN: herbie@watdcs, herbie@watdcsu