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On Jul 11, 2004, at 8:22 AM, phlox wrote:

> Greetings.
> Can someone clarify me on why NetBSD/sparc uses SPARC 'out' registers 
> to pass
> syscall arguments instead of using the stack ? Is it to better take 
> advantage of
> the architecture ? Does Solaris do the same ?

Because it matches the calling convention, and is much faster.  Yes, 
Solaris does the same.  So did SunOS 4.

         -- Jason R. Thorpe <thorpej@wasabisystems.com>


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