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Re: new GC code merged
From: |
Lynn Winebarger |
Subject: |
Re: new GC code merged |
Date: |
Sat, 17 Aug 2002 00:30:35 -0500 |
On Saturday 03 August 2002 19:27, Han-Wen wrote:
> I merged my new GC code into HEAD. It's tagged before-hanwen-gc-change
> and after-hanwen-gc-change. Here the preliminary notes for it. I'm not
> sure what else you want me to document, but I think the current change
> log entries are not verbose enough. Anyway, here goes:
>
Excuse my ignorance. The notes in tag.h indicate that the least
significant
bit of the 2nd word of a cell is used for marking. I was reading gc.h and it
appears the mark bits are stored separately. On the other hand, I looked
at a copy of guile from before your changes and it might also have used separate
mark bitvectors.
So is that lsb of the second word of a cell actually free for some other
use besides
marking?
Lynn