From: Geoff Collyer <geoff@collyer.net>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] Ultrasparc II
Date: Tue, 17 Sep 2002 23:49:52 -0700 [thread overview]
Message-ID: <7391233b619c132580f12d5171806df5@collyer.net> (raw)
So far the Plan 9 compilers implement a 64-bit long long type but
nobody has yet tried making pointers 64 bits. Even the alpha port
uses 32-bit addressing. Nobody here but the biologists has yet been
complaining about feeling squeezed in a 32-bit address space.
If one were to make a v9 sparc port use 64-bit addressing, I think the
existing compiler or loader would just need an option to generate the
new v9 instructions for 64-bit operands; I can't see the point of a
distinct v9 compiler. But a quick glance at the differences between
sparc v8 and v9 suggests that the real fun would be in the kernel
anyway.
next reply other threads:[~2002-09-18 6:49 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-18 6:49 Geoff Collyer [this message]
2002-09-18 7:37 ` Peter Downs
2002-09-18 15:06 ` Jack Johnson
2002-09-18 15:50 ` John Packer
-- strict thread matches above, loose matches on Subject: below --
2002-09-19 2:10 Geoff Collyer
2002-09-18 23:45 Geoff Collyer
2002-09-19 1:07 ` John Packer
2002-09-19 1:09 ` John Packer
2002-09-18 19:10 Charles Forsyth
2002-09-18 18:21 rob pike, esq.
2002-09-18 7:05 Charles Forsyth
2002-09-18 4:59 Geoff Collyer
2002-09-18 6:40 ` Peter Downs
2002-09-18 16:48 ` rob pike, esq.
2002-09-18 2:56 [9fans] multiprocessor Andrew
2002-09-18 4:43 ` [9fans] Ultrasparc II Peter Downs
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