68030 cache

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4 total messages Started by Andrew H. Marrinson Tue, 30 Sep 1986 02:20

#1116

Author: Andrew H. Marrinson
Date: Tue, 30 Sep 1986 02:20

9 lines
725 bytes

A recent article in the EE-times indicated the the 68030 had 256K of
on-chip cahce.  This can't be write, can it?!
-- 

	andy@icom.UUCP
	Or for those of		Andrew H. Marrinson
	you who wish to		ICOM Systems, Inc.
	play it the hard	Arlington Heights, IL 60005
	way: ihnp4!icom!andy

Re: 68030 cache

#1130

Author: Ed Nather
Date: Thu, 02 Oct 1986 14:51

12 lines
844 bytes

In article <721@icom.UUCP>, andy@icom.UUCP (Andrew H. Marrinson) writes:
> A recent article in the EE-times indicated the the 68030 had 256K of
> on-chip cahce.  This can't be write, can it?!
> -- 

No, it's rong.

-- 
Ed Nather
Astronomy Dept, U of Texas @ Austin
{allegra,ihnp4}!{noao,ut-sally}!utastro!nather
nather@astro.AS.UTEXAS.EDU

Re: 68030 cache

#1137

Author: Mark Campbell
Date: Thu, 02 Oct 1986 15:06

10 lines
1019 bytes

In article <721@icom.UUCP> andy@icom.UUCP (Andrew H. Marrinson) writes:
>A recent article in the EE-times indicated the the 68030 had 256K of
>on-chip cahce.  This can't be write, can it?!

Answer #1:	No, it's rong.  It has two 256 byte (64 x 4) caches,
		an I-cache and a D-cache.
Answer #2:	It *is* write-through.
-- 

Mark Campbell    Phone: (803)-791-6697     E-Mail: !ncsu!ncrcae!sauron!campbell

Re: 68030 cache

#1140

Author: John Woods, Software
Date: Thu, 02 Oct 1986 21:09

22 lines
1147 bytes

> A recent article in the EE-times indicated the the 68030 had 256K of
> on-chip cahce.  This can't be write, can it?!
				^^^^^
> -- 
> 	andy@icom.UUCP

Of course not!  It's read-only cache!

What?  Oh!  Never mind.

:-) :-) :-) :-) :-) :-) :-) :-) :-) :-) :-) :-) :-) :-) :-) :-) 

The caches are 256 bytes each, data and instruction (according to Electronic
Products, October 1).


--
John Woods, Charles River Data Systems, Framingham MA, (617) 626-1101
...!decvax!frog!john, ...!mit-eddie!jfw, jfw%mit-ccc@MIT-XX.ARPA

"Don't give me this intelligent life crap,
just find me a planet I can blow up."

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