Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!wasatch!cs.utexas.edu!tut.cis.ohio-state.edu!ucbvax!hplabs!nsc!voder!apple!shebs From: shebs@Apple.COM (Stanley Todd Shebs) Newsgroups: comp.lang.lisp Subject: Re: pointers in Lisp Message-ID: <624@internal.Apple.COM> Date: 9 Feb 89 18:58:40 GMT References: <1710@cps3xx.UUCP> <33722@tut.cis.ohio-state.edu> <49734@yale-celray.yale.UUCP> <36238@think.UUCP> Organization: Apple Computer Inc, Cupertino, CA Lines: 11 In article <36238@think.UUCP> barmar@kulla.think.com.UUCP (Barry Margolin) writes: >Note that Lispms aren't the only Lisps with CDR-coding. I believe >that a number of Lisps for conventional processors do CDR-coding these >days. It's a time/space tradeoff in these cases. Whoa! Which ones do you know for sure do cdr-coding?? I've not seen any myself, even after an extensive survey of systems, which wasn't surprising because you lose big if you don't have hardware support for forwarding ptrs... stan shebs shebs@apple.com