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Article #14263

Re: co w ogóle można z tym zrobić?

#14263
From: Szymon Sokół
Date: Wed, 17 Oct 2007 19:55
33 lines
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On Wed, 17 Oct 2007 20:18:12 +0200, Ponure Zacietrzewienie wrote:

> Szymon Sokół <szymon@bastard.operator.from.hell.pl> wrote:
[----]
>> No właśnie. PDP, VAX, i 68000 to typowe CISC. Tak samo jak x86 (a to, że
>> współczesne x86 to tak naprawdę RISC z emulacją CISC, to osobna sprawa).
>> Do 68k bliżej ma x86 niż SPARC.
> 
> Wlasciwie to zalezy jak patrzysz.  Z jednej strony owszem, mc68k to CISC,
> z drugiej strony mial sensowna ilosc rejestrow, podobnie jak SPARC, inaczej
> niz x86.  No i mial sensowne, proste adresowanie pamieci, znowu bardziej
> jak SPARC niz x86.

Adresowanie tak; ale 16 rejestrów (D0-7, A0-7) to jednak bliżej do 8086 niż
do SPARC (128 rejestrów).

BTW ciekawostka taka - w
http://en.wikipedia.org/wiki/Reduced_Instruction_Set_Computer#Early_RISC
piszą: "The first system that would today be known as RISC was not at the
time; it was the CDC 6600 supercomputer, designed in 1964 by Jim Thornton
and Seymour Cray."
a z kolei w http://en.wikipedia.org/wiki/CDC_Cyber
"The Cyber 70 and 170 architectures were successors to the earlier CDC 6600
and CDC 7600 series and therefore shared almost all of the earlier
architecture's characteristics."
czyli wychodzi, że mieliśmy w Polsce dwa procesory RISC już w roku 1973 ;-)
(Cyfronet Kraków i IBJ Świerk miały Cybery 72).

-- 
Szymon Sokół (SS316-RIPE) -- Network Manager                                 B
Computer Center, AGH - University of Science and Technology, Cracow, Poland  O
http://home.agh.edu.pl/szymon/ PGP key id: RSA: 0x2ABE016B, DSS: 0xF9289982  F
Free speech includes the right not to listen, if not interested -- Heinlein  H
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From: Szymon Sokół
 <szymon@bastard.operator.from.hell.pl>
Newsgroups: pl.comp.sys.sun.admin
Subject: Re: co w ogóle można z tym
 zrobić?
Date: Wed, 17 Oct 2007 21:55:01 +0200
Organization: Guy Fawkes Society
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