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- Path: soap.news.pipex.net!pipex!usenet
- From: m.hendry@dial.pipex.com (Mathew Hendry)
- Newsgroups: comp.sys.amiga.misc
- Subject: Re: Q: 680EC30? What does it mean?
- Date: Wed, 6 Mar 96 04:09:29
- Organization: Private node.
- Distribution: world
- Message-ID: <19960306.533088.4024@am154.du.pipex.com>
- References: <313CF5D1.446B@elvis.rowan.edu>
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-
- Maciej Gorny (gorny@elvis.rowan.edu) wrote:
- : What does EC stand for? does it mean it is lacking a math coprocesor,
- : and if so, will I be able to just buy one and add it to the board? I
- : would like to hope so,...
-
- It means that the chip does not have a fully functioning memory management
- unit. Motorola thoroughly test their chips prior to shipping - any that fail
- the MMU test but pass all others have the EC label attached to them. EC is
- supposed to stand for "EConomy" by the way.
-
- The practical results of having an EC chip are that you cannot reliably run
- any program which uses the MMU. Such programs includes virtual memory systems,
- some softkicking programs, and debugging tools such as Enforcer.
-
- -- Mat.
-