Re: Heap pointers

peter.ludemann@gmail.com
1 Nov 2005 00:23:14 -0500

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From: peter.ludemann@gmail.com
Newsgroups: comp.compilers
Date: 1 Nov 2005 00:23:14 -0500
Organization: http://groups.google.com
References: 05-10-204
Keywords: storage, GC
Posted-Date: 01 Nov 2005 00:23:14 EST

> [On Unix systems with a traditional storage layout, the symbol end or
> _end marks the end of static data and any pointer that is greater than
> end and less than the stack pointer (the address of a stack local is
> close enough) is in the heap. That hack is, to put it mildly, not
> very portable. There's generally something like that you can do, but
> it's quite specific to each system. -John]


Something similar to this is pretty standard with Prolog
implementations (usually these have a local stack and a heap which is
organized somewhat as a stack). You should be able to find more
details by searching for WAM (Warren's Abstract Machine, which despite
the name, has been used to generate machine code, for example,
Aquarius: http://www2.info.ucl.ac.be/people/PVR/aquarius.html)


e.g.:
        news://comp.lang.prolog
        http://www.cs.kuleuven.ac.be/~remko/prolog/faq/
        http://www.vanx.org/archive/wam/wam.html


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