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- Path: canopus.cc.umanitoba.ca!umverou0
- From: umverou0@cc.umanitoba.ca (Michael Veroukis)
- Newsgroups: comp.sys.amiga.misc,comp.sys.amiga.hardware
- Subject: Re: 030 with no Fast RAM slower than a 020?
- Date: 29 Jan 1996 17:00:15 GMT
- Organization: University of Manitoba, Winnipeg, Manitoba, Canada
- Message-ID: <4eiuev$if6@canopus.cc.umanitoba.ca>
- References: <4dqfiu$aoi@idefix.eunet.fi> <1996Jan23.225654.11337@scala.scala.com>
- NNTP-Posting-Host: antares.cc.umanitoba.ca
-
- In article <1996Jan23.225654.11337@scala.scala.com>,
- Dave Haynie <dave.haynie@scala.com> wrote:
- >Now, sure, the '030 is still running at 28MHz, and internal operations
- >will be faster. You can probably find a few CPU-intensive benchmarks
- >that show this. Anything that stays long enough in the instruction
- >cache will keep the speed up. Data cache, unfortunately, can't be used
- >on chip RAM. Once you add Fast RAM, you get memory better tuned to the
- >'030's bus speed. It may support burst cache access, and it definitely
- >support data caching.
-
- Hmm... So, the system (OS, or built into hardware) disables the data
- cache when you're accessing CHIP data? I guess that makes sense, since
- the blitter can change values that are in the cache without letting the CPU
- know about it.... That's very interesting, I wasn't aware of this...
-
- Mike Veroukis /\ "Angst on a plank, spitting from a bridge
- umverou0@ccu.umanitoba.ca \/ Just to see how far down it really is
- Winnipeg, Manitoba /\ Robbing a bank, jumping on a train
- Canada (North of the 49th) \/ Old antiques a man alone can entertain"
- Computer Science IV /\ - Cordelia (The Tragically Hip)
-
-
-