Path: utzoo!mnetor!uunet!lll-winken!lll-tis!ames!pasteur!ucbvax!XEROX.COM!Fischer.pa
From: Fischer.pa@XEROX.COM
Newsgroups: comp.lang.scheme
Subject: Re: Extending the address space of MIT Cscheme
Message-ID: <880502-104935-3391@Xerox>
Date: 2 May 88 17:49:00 GMT
References: <MKATZ@A.ISI.EDU>
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 4

Put the type bits at the bottom of the address word.  No shift, just mask if
needed.  Result: larger 'words.'  This technique also used in Smalltalk-80,
immediates were tagged with low order bit, shifted only when needed.

(ron)