MACLISP FOR TENEX AND TOPS-20

[GLS at MIT-AI (Guy L. Steele, Jr.)]

    Date: 19 Apr 1978 1446-PST
    From: Boyer at SRI-KL (Bob Boyer)
    Subject: MACLISP FOR TENEX AND TOPS-20
    To:   GLS at MIT-AI

    Is there any news since say four months ago on 
    improving the DEC-10 version of MACLISP
    so that it can use the full core image on
    TOPS-20 and TENEX.

    As a separate matter, do you know of any plans
    to rewrite MACLISP to take advantage of the new
    DEC extended hardware for 10's that permits
    addresses greater than 18 bits?
    -------

Regarding the TOPS-20 version, perhaps HIC@MIT-MC (Howard Cannon,
to whom I am forwarding this note) can answer better than I.
As far as use of PDP-10 extended addressing, we hhave no plans at
all at present to exploit that.  We are currently undertaking
a "new implementation of LISP" to be brought up on very-large-address
machines, such as the DEC VAX/11 and the Stanford S-1.  I suppose it
might be possible to bring up a version of this eventually on
an extended-address PDP-10, but we have given it no thought, as far
as I know.