Re: New Solaris 7 features

David S. Miller (davem@dm.cobaltmicro.com)
Wed, 11 Nov 1998 23:58:02 -0800


From: David Myers <dem@skyline.rtp.nc.us>
Date: Wed, 11 Nov 1998 20:37:35 -0500 (EST)

If your UltraSPARC is <= 200 MHz, it's an UltraSPARC I, and it's
most likely a workstation, where you probably won't benefit much
from 64-bit mode in the first place.

If you're a developer of any sort it's wonderful so you can catch all
the pointer cast bugs in your code, ie. :

foo = (int) some_ptr;
some_ptr = typeof(some_ptr) foo;
some_ptr->test = 0xdeadbeef;

no longer works when compiled in MEDANY or MEDALL v9 code models and
will core on you.

Also the biased stack in all the v9 code models allows you to access
2k more from the frame pointer, which believe it or not is a great
win for code generation.

Later,
David S. Miller
davem@dm.cobaltmicro.com

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