Luca Pisati
Fri, 03 Apr 1998 11:47:36 -0800

P. T. Withington wrote:
> The hardware support for GC on the LispM consists of word-granularity
> read barriers, page-granularity remembered sets, and invisible forwarding
> pointers.  The collector itself is all software.

forwarding-pointers ... not that invisible :-)
They gave me a few headaches ...

I remember cases (inside of the S-Products) where EQ would fail because of
forwarding pointers (I think it was associated to how CHANGE-CLASS was implemented.)

Luca Pisati
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