From: peter@rulingia.com (Peter Jeremy)
Subject: [TUHS] Need a new PDP-11 or VAX?
Date: Sun, 28 Apr 2013 17:45:29 +1000 [thread overview]
Message-ID: <20130428074529.GG23673@server.rulingia.com> (raw)
In-Reply-To: <20130427224146.GR664@bitmover.com>
On 2013-Apr-27 15:41:46 -0700, Larry McVoy <lm at bitmover.com> wrote:
>What I'd like is a new 64 bit PDP-11.
That might be fun to program in assembler but I suspect the
performance would suck. The ISA complexity implies a microcoded
implementation (with all the associated overheads). And compilers
generally have difficulty taking advantage of complex ISAs.
> That assembler was wonderful to
>read and write, only a short distance from C.
Agreed.
> x86 makes me puke.
Likewise. Warts upon warts... It's an abomination.
> MIPS
>and Alpha aren't much better (I was hoping for better from Alpha but they
>seemed like they copied MIPS).
I disagree on the Alpha. Apart from the idiotic decision to combine
imprecise exceptions with needing software support for IEEE FP, I
thought it was a very clean and well designed architecture. It wasn't
fun to program in directly but it was intended for use with compiled
languages. The designers went to a fair amount of effort to avoid
embedding bottlenecks in the language.
For anyone who's into really CISC architectures, check out the iAPX432.
--
Peter Jeremy
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next prev parent reply other threads:[~2013-04-28 7:45 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-27 21:26 Dave Horsfall
2013-04-27 22:41 ` Larry McVoy
2013-04-27 23:53 ` Dave Horsfall
2013-04-28 0:12 ` Ronald Natalie
2013-04-28 1:39 ` John Cowan
2013-04-28 3:38 ` Nick Downing
2013-04-28 3:48 ` Larry McVoy
2013-04-28 3:57 ` Larry McVoy
2013-04-28 5:57 ` John Cowan
2013-04-28 5:34 ` [TUHS] curmudgeon credit Aharon Robbins
2013-04-28 7:08 ` Nick Downing
2013-05-14 6:11 ` Aaron J. Grier
2013-05-14 6:52 ` emu
2013-05-14 7:51 ` David Evans
2013-04-28 16:28 ` Larry McVoy
2013-04-28 7:45 ` Peter Jeremy [this message]
2013-04-28 10:50 ` [TUHS] Need a new PDP-11 or VAX? Ronald Natalie
2013-04-28 0:15 ` Ronald Natalie
[not found] <mailman.3.1367200802.17183.tuhs@minnie.tuhs.org>
2013-04-29 23:19 ` David Barto
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