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Showing content from http://mail.python.org/pipermail/python-dev/2002-February/020168.html below:

[Python-Dev] Rattlesnake progress

[Python-Dev] Rattlesnake progress [Python-Dev] Rattlesnake progressNeil Schemenauer nas@python.ca
Tue, 19 Feb 2002 10:20:53 -0800
Daniel Berlin wrote:
> The largest problem on architectures like x86 is the number of
> registers.  You end up with about 4 usable registers. (hardware
> register renaming only helps eliminate instruction dependencies,
> before someone mentions it).  Performance quickly drops when you start
> spilling registers to the stack.

I'm not going to be using hardware registers.  Bytecode will be
generated to run on a virtual machine.  I can use a many registers as I
want.  However, I suspect it would be better to reuse registers rather
than have one for every intermediate result.

  Neil



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