Path: utzoo!attcan!uunet!cs.utexas.edu!sun-barr!newstop!sun!ember!dre
From: dre@ember.Sun.COM
Newsgroups: comp.arch
Subject: Re: PR1ME 32I mode
Summary: P500 was the first machine with I mode
Message-ID: <144028@sun.Eng.Sun.COM>
Date: 22 Oct 90 22:45:07 GMT
References: <1990Oct20.221803.5973@Stardent.COM>
Sender: news@sun.Eng.Sun.COM
Lines: 7


Wow, a blast from the past...

32I mode was first implemented on the P500.  The P450 was a P400 with revamped
microcode that implemented 32I mode and the P500 Cobol instructions.

			Dave Emberson (Prime CPU Group, '77-'80)