From: Richie Bielak <richieb@calfp.com>
Subject: Re: Assembler most efficient??? (was Re: What is wrong with OO ?)
Date: 1997/01/13
Date: 1997-01-13T00:00:00+00:00 [thread overview]
Message-ID: <32DA40EE.2C3C@calfp.com> (raw)
In-Reply-To: dewar.852989882@merv
Robert Dewar wrote:
>
> Richie said
>
> "Part of the difficulty compilers have with generating good code
> is that CPUs are being designed by people who coded in assembler
> and never had to write a compiler."
>
> Do you really have evidence of this?
[...]
>
> I can think of some examples in the past where instruction sets have been
> designed with far too much naive input from high level language and
> compiler considerations, but none of them seem to have survived into the
> modern RISC era.
My comments were mostly based on what I read about Wirth's work on
Modula-2,
Oberon, Lilith etc., which I realize I somewhat outdated.
I know that many of the RISC processors are designed more with the
compiler
in mind.
My favorite example of a compiler going wrong with the instruction
set provided, was DEC's old COBOL compiler on the VAX. As you must know,
VAX provided many instructions specifically aimed at making code
generation
easier (eg. INDEX, LOCC, SCAN etc). In one case the COBOL compiler
generated exponential algorithm for a linear problem using those fancy
instructions.
Finally, to get back to the orignal topic, I think that on the modern
RISC
processors it is more likely for a compiler to generate faster code
than what could be hand written in assembler.
...richie
--
* richieb@netlabs.net - at home | Richie Bielak *
* richieb@calfp.com - at work | *
* Home page: http://www.netlabs.net/hp/richieb *
* "Fight software piracy, use free software!" (me) *
next prev parent reply other threads:[~1997-01-13 0:00 UTC|newest]
Thread overview: 209+ messages / expand[flat|nested] mbox.gz Atom feed top
1996-12-03 0:00 What is wrong with OO ? Ahmed
1996-12-03 0:00 ` Fred Parker
1996-12-03 0:00 ` Bill Gooch
1996-12-03 0:00 ` Bill Gooch
1996-12-04 0:00 ` Ahmed
1996-12-04 0:00 ` Bill Gooch
1996-12-06 0:00 ` Jeff Miller
1996-12-06 0:00 ` Bill Gooch
1996-12-14 0:00 ` Chris
1996-12-06 0:00 ` Ahmed
1996-12-06 0:00 ` Bill Gooch
1996-12-04 0:00 ` Matthew Gream
1996-12-05 0:00 ` Tim Ottinger
1996-12-04 0:00 ` Harry Protoolis
1996-12-04 0:00 ` Robert C. Martin
1996-12-04 0:00 ` Dr. Richard Botting
1996-12-05 0:00 ` Piercarlo Grandi
1996-12-05 0:00 ` Tom Bushell
1996-12-05 0:00 ` Marnix Klooster
1996-12-05 0:00 ` Piercarlo Grandi
1996-12-06 0:00 ` Tom Bushell
1996-12-06 0:00 ` David Bradley
1996-12-08 0:00 ` Piercarlo Grandi
1996-12-10 0:00 ` Todd Hoff
1996-12-11 0:00 ` Nick Leaton
1996-12-11 0:00 ` Nick Leaton
1996-12-11 0:00 ` Matt Kennel
1996-12-12 0:00 ` Piercarlo Grandi
1996-12-10 0:00 ` Piercarlo Grandi
1996-12-11 0:00 ` Tom Bushell
1996-12-06 0:00 ` Carl Weidling
1996-12-06 0:00 ` David B. Shapcott [C]
1996-12-06 0:00 ` Roger Vossler
1996-12-10 0:00 ` Tom Bushell
1996-12-10 0:00 ` Roger Vossler
1996-12-12 0:00 ` Don Harrison
1996-12-12 0:00 ` Tom Bushell
1996-12-11 0:00 ` Todd Knarr
1996-12-11 0:00 ` Alan Meyer
1996-12-12 0:00 ` Tom Bushell
1996-12-12 0:00 ` Ell
[not found] ` <58mubr$i <58p5ou$dkm@news3.digex.net>
1996-12-13 0:00 ` Nick Leaton
1996-12-25 0:00 ` Weiqi Gao
1996-12-25 0:00 ` Matthew S. Whiting
1996-12-26 0:00 ` Mike Rubenstein
1996-12-26 0:00 ` Bob Jarvis
1996-12-26 0:00 ` Arthur Gold
[not found] ` <32aefdb0..406273038@news.nstn.ca>
1996-12-14 0:00 ` "Paul E. Bennett"
1996-12-06 0:00 ` Harry Protoolis
1996-12-10 0:00 ` Tom Bushell
1996-12-06 0:00 ` Mukesh Prasad
1996-12-10 0:00 ` Tom Bushell
1996-12-04 0:00 ` Ahmed
1996-12-06 0:00 ` Harry Protoolis
1996-12-06 0:00 ` Ralph Cook
1996-12-07 0:00 ` Harry Protoolis
1996-12-09 0:00 ` Nigel Tzeng
1996-12-12 0:00 ` David Bradley
1996-12-20 0:00 ` Nigel Tzeng
[not found] ` <1996Dec7.151850.877@prim.demon.co.uk>
1996-12-08 0:00 ` Tansel Ersavas
1996-12-14 0:00 ` Kazimir Majorinc
1996-12-14 0:00 ` Jeff Miller
1996-12-16 0:00 ` David Bradley
1996-12-14 0:00 ` Tansel Ersavas
1996-12-15 0:00 ` Todd Hoff
1996-12-15 0:00 ` Patrick Ma
1996-12-16 0:00 ` Robert C. Martin
1996-12-16 0:00 ` Bob Kettig
1996-12-15 0:00 ` Tansel Ersavas
1996-12-20 0:00 ` The Impossible Project: not so funny... (Was: what's wrong) Tim Ottinger
1996-12-20 0:00 ` Robert Dewar
1996-12-21 0:00 ` John DiCamillo
1996-12-22 0:00 ` Guy Rixon
1996-12-22 0:00 ` Chip Richards
1996-12-04 0:00 ` What is wrong with OO ? Joe Winchester
1996-12-05 0:00 ` Russell Corfman
1996-12-04 0:00 ` Roger T.
1996-12-04 0:00 ` Robert C. Martin
1996-12-04 0:00 ` Piercarlo Grandi
1996-12-05 0:00 ` Nick Thurn
1996-12-05 0:00 ` Daniel Drasin
1996-12-06 0:00 ` David Bradley
1996-12-06 0:00 ` Steve Heller
1996-12-06 0:00 ` Todd Hoff
1996-12-07 0:00 ` Nick Thurn
1996-12-14 0:00 ` Robert C. Martin
1996-12-15 0:00 ` Todd Hoff
1996-12-15 0:00 ` Joseph W. Seda
1996-12-16 0:00 ` David Bradley
1996-12-19 0:00 ` Robert I. Eachus
1996-12-07 0:00 ` Steve Heller
1996-12-07 0:00 ` Tansel Ersavas
1996-12-09 0:00 ` Kenneth Mays
1996-12-14 0:00 ` Robert C. Martin
1996-12-14 0:00 ` Patrick Ma
1996-12-18 0:00 ` Harry Protoolis
1996-12-18 0:00 ` Patrick Ma
1996-12-18 0:00 ` Caitlin
1996-12-15 0:00 ` Tansel Ersavas
1996-12-17 0:00 ` Robert Dewar
1996-12-18 0:00 ` Tansel Ersavas
1996-12-27 0:00 ` clovis
1996-12-27 0:00 ` Tore Lund
1996-12-28 0:00 ` clovis
1996-12-28 0:00 ` Tore Lund
1996-12-27 0:00 ` Jacqueline U. Robertson
1996-12-27 0:00 ` Tore Lund
1996-12-28 0:00 ` Tansel Ersavas
1996-12-28 0:00 ` Tore Lund
1996-12-31 0:00 ` Adam Beneschan
1996-12-31 0:00 ` clovis
1996-12-31 0:00 ` Neville Black
1996-12-31 0:00 ` Tansel Ersavas
1997-01-01 0:00 ` Tom Bushell
1997-01-10 0:00 ` Bart Samwel
1997-01-10 0:00 ` Robert Dewar
1997-01-10 0:00 ` Assembler most efficient??? (was Re: What is wrong with OO ?) Richie Bielak
1997-01-11 0:00 ` Robert Dewar
1997-01-11 0:00 ` Larry Kilgallen
1997-01-12 0:00 ` Joel VanLaven
1997-01-11 0:00 ` James S. Rogers
1997-01-13 0:00 ` Richie Bielak [this message]
1997-01-15 0:00 ` What is wrong with OO ? Richard Kenner
1997-01-11 0:00 ` Randy A. Ynchausti
1997-01-12 0:00 ` Piercarlo Grandi
1996-12-31 0:00 ` Robert C. Martin
1996-12-29 0:00 ` clovis
1996-12-31 0:00 ` Tom Bushell
1996-12-31 0:00 ` clovis
1997-01-10 0:00 ` Bart Samwel
1996-12-31 0:00 ` Jon S Anthony
1997-01-01 0:00 ` Jon S Anthony
1997-01-12 0:00 ` Corey Minyard
1997-01-14 0:00 ` Vos nom et pr�nom
1997-01-13 0:00 ` Nick Thurn
1996-12-28 0:00 ` clovis
1996-12-30 0:00 ` John (Max) Skaller
1996-12-29 0:00 ` Rosimildo da Silva
1996-12-31 0:00 ` Ian Joyner
1997-01-03 0:00 ` markj
1997-01-03 0:00 ` Natan
1996-12-28 0:00 ` Stephen Pendleton
1996-12-31 0:00 ` Edward de Jong
1996-12-31 0:00 ` Nick Leaton
1996-12-31 0:00 ` clovis
1997-01-01 0:00 ` Tore Lund
1997-01-01 0:00 ` Tore Lund
1996-12-19 0:00 ` Robert C. Martin
1996-12-17 0:00 ` Adam Beneschan
1996-12-17 0:00 ` Ralph Cook
1996-12-18 0:00 ` Tansel Ersavas
1996-12-17 0:00 ` Adam Beneschan
1996-12-17 0:00 ` Tansel Ersavas
1996-12-18 0:00 ` Adam Beneschan
1996-12-18 0:00 ` Ralph Cook
1996-12-19 0:00 ` Robert C. Martin
1996-12-20 0:00 ` Tansel Ersavas
1996-12-21 0:00 ` Michael Malak
1996-12-19 0:00 ` Nick Leaton
1996-12-24 0:00 ` Nigel Tzeng
1996-12-26 0:00 ` Tansel Ersavas
1996-12-26 0:00 ` Bill Gooch
1996-12-16 0:00 ` Karen A. Morrissey
1996-12-16 0:00 ` Bob Kettig
1996-12-17 0:00 ` Robert Dewar
1996-12-17 0:00 ` David Bradley
1996-12-09 0:00 ` Todd Hoff
1996-12-10 0:00 ` Snowball queries
1996-12-10 0:00 ` Steve Heller
1996-12-12 0:00 ` Samuel S. Shuster
1996-12-12 0:00 ` Dr. Richard Botting
1996-12-13 0:00 ` Nick Leaton
1996-12-16 0:00 ` Samuel S. Shuster
1996-12-16 0:00 ` Bob Kettig
1996-12-16 0:00 ` Robert Dewar
1996-12-17 0:00 ` Nick Leaton
1996-12-17 0:00 ` Tansel Ersavas
1996-12-18 0:00 ` Tom Bushell
1996-12-18 0:00 ` Matt Kennel
1996-12-18 0:00 ` Tansel Ersavas
1996-12-19 0:00 ` Tom Bushell
1996-12-23 0:00 ` David Bradley
1996-12-23 0:00 ` Jeffrey C. Dege
1996-12-19 0:00 ` David Bradley
1996-12-20 0:00 ` Chris Brand
[not found] ` <01bbee11$dcae8460$ca61e426@DCorbit.solutionsiq.com>
1996-12-23 0:00 ` David Bradley
1996-12-19 0:00 ` Jeffrey C. Dege
1996-12-20 0:00 ` Tom Bushell
1996-12-19 0:00 ` Tansel Ersavas
1996-12-27 0:00 ` clovis
1996-12-15 0:00 ` Damon Feldman
1996-12-13 0:00 ` drush
1996-12-18 0:00 ` Matt Austern
1996-12-19 0:00 ` Risto Lankinen
1996-12-20 0:00 ` Bill Gooch
1996-12-20 0:00 ` Jon S Anthony
1996-12-20 0:00 ` Jon S Anthony
1996-12-20 0:00 ` Tansel Ersavas
1996-12-26 0:00 ` What sells IT (was: What is wrong with OO ?) Cameron Laird
1996-12-20 0:00 ` What is wrong with OO ? Tansel Ersavas
1996-12-23 0:00 ` Jon S Anthony
1996-12-23 0:00 ` Jon S Anthony
1996-12-26 0:00 ` drush
1996-12-26 0:00 ` drush
1996-12-06 0:00 ` Myles Williams
1996-12-06 0:00 ` Ranjan Bagchi
1996-12-06 0:00 ` Myles Williams
1996-12-07 0:00 ` Kazimir Majorinc
1996-12-14 0:00 ` Chris
replies disabled
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox