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From: llames@uicsg.UUCP
Newsgroups: net.arch
Subject: Re: Data Stack in the Symbolics 3600
Message-ID: <800001@uicsg>
Date: Sat, 16-Aug-86 15:52:00 EDT
Article-I.D.: uicsg.800001
Posted: Sat Aug 16 15:52:00 1986
Date-Received: Mon, 18-Aug-86 01:13:09 EDT
References: <2598@rsch.wisc.edu>
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Nf-ID: #R:rsch.wisc.edu:2598:uicsg:800001:000:1009
Nf-From: uicsg.UUCP!llames    Aug 16 14:52:00 1986


>> Does anybody have any information (or pointers to information)
>> about the data stack on the Symbolics 3600? ...
>> Guri Sohi, sohi@amul.wisc.edu

> You should check out the "Symbolics Technical Summary" ...
> In addition, David Moon has two interesting papers ...
> Hal Stern, {ihnp4, seismo, allegra}!princeton!stern

The use of the data stack is described in Volume 8 (Internals, Processes,
and Storage Management) of the Symbolics documentation set, pp. 26-28.
In summary, special forms are provided that allow you to cons arrays on the
data stack, rather that in garbage-collected heap storage.  The arrays have
dynamic extent (and either lexical or indefinite scope).  They get popped
off when the form is exited.  This facility is like that which lets you cons
lists on the control stack.  Currently, only arrays can be allocated on the
data stack.  I don't know if Release 7 will permit more kinds of objects.

Rene Llames
llames%uicsg@a.cs.uiuc.edu
...!{pur-ee,ihnp4,convex}!uiucdcs!uicsg!llames