Re: Memory cycles

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Article #2729

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#2729

From: Bruce Becker
Date: Sat, 13 Jan 1990 22:54

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In article <1728.25ad4906@cc.helsinki.fi> pkontkanen@cc.helsinki.fi writes:
|	
|	I have read one memory cycle is approximately 280 ns in duration.
| 	Now I would like to know how many cycles each machine language
|	instruction takes. Is the number of cycles same as the number of
|	words the instruction allocates?

	The Motorola MC680x0 proccessor manuals give
	this information in an appendix.

	The number of cycles are dependent on several
	things, too complex to enumerate here - it is
	worth pointing out in passing that as "x" gets
	larger in 680x0, the cycle time for many
	instructions gets shorter due to better processor
	internal architecture and improved microcode.

Cheers,
-- 
  ,,,,	 Bruce Becker	Toronto, Ont.
w \$$/	 Internet: bdb@becker.UUCP, bruce@gpu.utcs.toronto.edu
 `/c/-e	 BitNet:   BECKER@HUMBER.BITNET
_/  >_	 "Money is the root of all money" - Adam

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Path: arc1-ca.pugleaf.net!utzoo!censor!geac!becker!bdb
From: bdb@becker.UUCP (Bruce Becker)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Memory cycles
Message-ID: <2173@becker.UUCP>
Date: 13 Jan 90 22:54:28 GMT
References: <1728.25ad4906@cc.helsinki.fi>
Reply-To: bdb@becker.UUCP (Bruce Becker)
Organization: G. T. S., Toronto, Ontario
Lines: 23

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