[m-dev.] x86-64 architecture support

[Zoltan Somogyi]

On 26-Aug-2005, Peter Hawkins <peter at hawkins.emu.id.au> wrote:
> It seems the 64-bit version is somewhat slower, despite having an extra 
> global register variable. Any ideas as to why? The code does not appear 
> to have become much bigger:

But the data has become twice as big. This has the same effect as
cutting the cache size in half.

If there is a 64-bit version of valgrand and cachegrind, you could
measure this effect.

Zoltan.
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