Messages in this thread | | | From | David Lang <> | Date | Sun, 9 Dec 2001 23:30:05 -0800 (PST) | Subject | Re: "Colo[u]rs" |
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On Sun, 9 Dec 2001, Larry McVoy wrote:
> On Sun, Dec 09, 2001 at 11:21:23PM -0800, David Lang wrote: > > Larry, I thought that direct mapped caches had full mapping from any cache > > address to any physical address while the N-way mapped caches were more > > limited. modern caches are N-way instead of direct mapped becouse it's > > much more expensive (transistor count wise) for the direct mapped > > approach. > > That's not correct unless they changed terminology without asking my > permission :-) A direct mapped cache is the same as a 1-way set > associative cache. It means each cache line has one and only one > place it can be in the cache. It also means there is only one set > of tag comparitors, which makes it cheaper and easier to build. > > > If I'm mistaken about my termonology (very possible :-) what is the term > > for what I am refering to as direct mapped? > > Fully associative cache, I believe.
Yep, that's it. thanks for the correction.
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