68030 cache

[Andrew H. Marrinson]

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

an...@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

[Ed Nather]

In article <7...@icom.UUCP>, an...@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
nat...@astro.AS.UTEXAS.EDU

[Mark Campbell]

In article <7...@icom.UUCP> an...@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

[John Woods, Software]

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

^^^^^
> --
> an...@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...@MIT-XX.ARPA

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