[nhc-users] pointers < 2^31?

[Ian Lynagh]

On Wed, Nov 24, 2004 at 05:35:26PM +0000, Malcolm Wallace wrote:
> > Am I confused or does nhc98 assume that all pointers are < 2^31?
> 
> It would seem that you are right.  The top bit 0x10000000 is the
> ZAP_BIT, used to indicate a black-hole (a value already under
> evaluation, useful for detecting infinite loops).

Hmm, I had a look at changing this to use offsets from the heap start
address, but it looks to me like the same functions need to work on both
the heap stuff and the structures linked in from the .hc files.
I'm afraid I'm going to have to give up on this, for now at least.


Ian