From: erik quanstrom <quanstro@coraid.com>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] speaking of kenc
Date: Fri, 4 May 2007 07:18:05 -0400 [thread overview]
Message-ID: <365ea11ad3b42dfd27cf91367c883f3b@coraid.com> (raw)
In-Reply-To: <ee84f61de310fd9a32418834d0e0da5d@vitanuova.com>
On Fri May 4 05:24:03 EDT 2007, forsyth@vitanuova.com wrote:
> having to code anything in assembler is a significant sign of failure:
> if it's on a general-puprose processor, we have failed to educate processor designers;
> if it's on (say) a DSP, it's a bit of a mixture of that and people thinking that
> language design stopped with C, so the language provides too little scope for a compiler sensibly to do the work.
i agree. however, i think there are some exceptions. some
(often 8 bit) architectures are better suited to assembly.
i wrote a hc08 disassembler/ simulator earlier this year. it's
got 256 bytes of ram and one general purpose register.
c's overhead would eat into that 256 bytes quite quickly.
before you dismiss it as a silly, old design, note that it is a
usb-enabled soc and costs less than two bucks. and in
motorola tradition, all io is mmio.
also there are some things that are just difficult to do in c.
c has no notion of cache-coherence. so one needs to reach
outside the language to do something like [RWM]FENCE
on out-of-order processors.
are there any languages that deal with this?
- erik
next prev parent reply other threads:[~2007-05-04 11:18 UTC|newest]
Thread overview: 149+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-27 3:08 erik quanstrom
2007-04-27 3:44 ` David Leimbach
2007-04-27 4:56 ` Bruce Ellis
2007-04-27 6:21 ` Skip Tavakkolian
2007-04-27 4:54 ` Joel C. Salomon
2007-04-27 4:58 ` Bruce Ellis
2007-04-27 11:00 ` Charles Forsyth
2007-04-27 13:49 ` David Leimbach
2007-04-27 16:23 ` Douglas A. Gwyn
2007-04-29 2:02 ` erik quanstrom
2007-04-29 2:55 ` Tim Wiess
2007-04-29 6:42 ` Uriel
2007-04-29 20:47 ` Charles Forsyth
2007-04-30 8:29 ` Douglas A. Gwyn
2007-04-30 13:08 ` Uriel
2007-05-01 0:22 ` erik quanstrom
2007-05-01 14:45 ` Jon Snader
2007-05-01 14:56 ` Devon H. O'Dell
2007-05-01 15:12 ` erik quanstrom
2007-05-01 15:29 ` Devon H. O'Dell
2007-05-01 21:32 ` Jon Snader
2007-05-02 0:04 ` Derek Fawcus
2007-05-02 8:44 ` Charles Forsyth
2007-05-01 15:51 ` Anthony Sorace
2007-05-02 8:32 ` Douglas A. Gwyn
2007-05-02 9:00 ` Steve Simon
2007-05-03 1:32 ` David Arnold
2007-05-03 3:39 ` Adrian Tritschler
2007-05-03 3:57 ` Paul Lalonde
2007-05-03 4:11 ` Federico Benavento
2007-05-03 13:34 ` Anthony Sorace
2007-05-03 22:04 ` LiteStar numnums
2007-05-04 1:45 ` Roman Shaposhnick
2007-05-04 1:51 ` Lyndon Nerenberg
2007-05-04 2:00 ` erik quanstrom
2007-05-04 2:08 ` Roman Shaposhnick
2007-05-04 2:12 ` Lyndon Nerenberg
2007-05-04 2:20 ` Roman Shaposhnick
2007-05-04 2:35 ` Lyndon Nerenberg
2007-05-04 6:53 ` Bruce Ellis
2007-05-05 4:49 ` Roman Shaposhnick
2007-05-05 5:11 ` Roman Shaposhnick
2007-05-05 5:14 ` Bruce Ellis
2007-05-05 18:52 ` erik quanstrom
2007-05-05 19:13 ` lucio
2007-05-05 23:09 ` Bruce Ellis
2007-05-06 1:24 ` Rogelio Serrano
2007-05-06 4:08 ` erik quanstrom
2007-05-06 4:53 ` W B Hacker
2007-05-06 5:01 ` lucio
2007-05-06 5:01 ` Rogelio Serrano
2007-05-06 5:07 ` Rogelio Serrano
2007-05-06 5:15 ` lucio
2007-05-06 5:37 ` Bruce Ellis
2007-05-06 6:30 ` Rogelio Serrano
2007-05-06 6:46 ` lucio
2007-05-06 6:49 ` lucio
2007-05-06 7:35 ` Rogelio Serrano
2007-05-06 6:51 ` W B Hacker
2007-05-06 10:25 ` Rogelio Serrano
2007-05-06 6:04 ` Skip Tavakkolian
2007-05-06 7:24 ` lucio
2007-05-06 11:47 ` Bruce Ellis
2007-05-07 1:55 ` Roman Shaposhnik
2007-05-06 5:12 ` lucio
2007-05-06 13:18 ` Richard Miller
2007-05-06 20:23 ` Roman Shaposhnik
2007-05-07 1:57 ` Roman Shaposhnik
2007-05-07 4:29 ` W B Hacker
2007-05-07 15:08 ` Tim Wiess
2007-05-06 5:15 ` W B Hacker
2007-05-06 7:43 ` Rogelio Serrano
2007-05-06 8:02 ` W B Hacker
2007-05-06 8:12 ` Rogelio Serrano
2007-05-06 9:00 ` W B Hacker
2007-05-06 8:03 ` lucio
2007-05-06 8:42 ` Rogelio Serrano
2007-05-06 10:20 ` matt
2007-05-06 10:29 ` Rogelio Serrano
2007-05-06 9:09 ` W B Hacker
2007-05-06 5:10 ` W B Hacker
2007-05-06 5:32 ` lucio
2007-05-06 6:18 ` Rogelio Serrano
2007-05-06 6:30 ` W B Hacker
2007-05-06 6:21 ` W B Hacker
2007-05-07 1:47 ` Roman Shaposhnik
2007-05-06 1:13 ` Rogelio Serrano
2007-05-06 3:31 ` W B Hacker
2007-05-06 4:10 ` erik quanstrom
2007-05-06 4:55 ` Rogelio Serrano
2007-05-06 5:10 ` lucio
2007-05-06 6:05 ` W B Hacker
2007-05-06 8:45 ` matt
2007-05-06 6:45 ` Rogelio Serrano
2007-05-06 6:52 ` lucio
2007-05-06 7:09 ` W B Hacker
2007-05-06 7:34 ` Rogelio Serrano
2007-05-06 7:49 ` W B Hacker
2007-05-06 7:54 ` lucio
2007-05-06 8:35 ` Rogelio Serrano
2007-05-06 7:40 ` lucio
2007-05-06 8:59 ` W B Hacker
2007-05-06 7:03 ` W B Hacker
2007-05-06 5:21 ` Bruce Ellis
2007-05-06 7:01 ` Rogelio Serrano
2007-05-05 5:30 ` lucio
2007-05-04 2:16 ` erik quanstrom
2007-05-04 9:24 ` C H Forsyth
2007-05-04 11:18 ` erik quanstrom [this message]
2007-05-04 16:19 ` Paul Lalonde
2007-05-04 21:58 ` Dave Eckhardt
2007-05-04 22:27 ` Paul Lalonde
2007-05-04 8:46 ` Douglas A. Gwyn
2007-05-05 4:47 ` Roman Shaposhnick
2007-05-02 8:33 ` Douglas A. Gwyn
2007-05-02 11:25 ` Jon Snader
2007-05-02 8:33 ` Douglas A. Gwyn
2007-05-02 11:30 ` erik quanstrom
2007-04-27 16:21 ` Douglas A. Gwyn
2007-04-27 11:12 ` Charles Forsyth
2007-04-27 11:46 ` erik quanstrom
2007-04-27 14:21 ` Joel C. Salomon
2007-04-27 14:26 ` erik quanstrom
2007-04-27 14:41 ` Rob Pike
2007-04-27 14:55 ` Joel C. Salomon
2007-04-27 15:24 ` erik quanstrom
2007-04-27 15:53 ` C H Forsyth
2007-04-28 9:09 ` ron minnich
2007-04-28 9:17 ` Lucio De Re
2007-04-28 13:48 ` Eric Van Hensbergen
2007-04-28 13:57 ` Lucio De Re
2007-04-28 14:15 ` LiteStar numnums
2007-04-28 21:21 ` Roman Shaposhnik
2007-04-28 21:54 ` ron minnich
2007-04-28 22:33 ` Steve Simon
2007-04-28 15:45 ` Charles Forsyth
2007-04-28 17:58 ` Rodrigo Miranda
2007-04-28 20:12 ` Eric Van Hensbergen
2007-04-28 21:10 ` Roman Shaposhnik
2007-04-28 18:15 ` Lluís Batlle i Rossell
2007-04-29 2:39 ` Joel C. Salomon
2007-04-29 12:41 ` erik quanstrom
2007-04-29 16:00 ` Joel C. Salomon
2007-04-28 21:24 ` Roman Shaposhnik
2007-05-06 12:36 erik quanstrom
2007-05-06 15:18 ` lucio
2007-05-06 16:23 ` W B Hacker
2007-05-06 17:53 ` Benn Newman
2007-05-06 17:56 ` Francisco J Ballesteros
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