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- From: grr@cbmvax.commodore.com (George Robbins)
- Newsgroups: comp.sys.amiga.hardware
- Subject: Re: Secondary CPU cache for the Amiga
- Message-ID: <36696@cbmvax.commodore.com>
- Date: 5 Nov 92 07:33:04 GMT
- References: <OAHVENLA.92Nov1142539@lk-hp-9.hut.fi> <OD.6BadNetOA92-901-231p0_52c45b1f@piraya.bad.se>
- Reply-To: grr@cbmvax.commodore.com (George Robbins)
- Organization: Commodore, West Chester, PA
- Lines: 18
-
- In article <OD.6BadNetOA92-901-231p0_52c45b1f@piraya.bad.se> Mike_Noreen@anet.bbs.bad.se (Mike Noreen) writes:
- > > CHEAP?! Do you have ANY IDEA of what you're talking about? While DRAM may be
- > > cheap, FAST SRAM is NOT. As DaveH and some others have told, 040 is cheaper
- > > and more effective power boost than 030 and external cache.
- >
- > Yes, but if you've already got a A3000 (with '030), wouldn't it be rather nice
- > to double performance using - say - 512k SRAM? This wouldnt have to be very
- > expensive; less than one tenth of an average '040 accelerator for the A3000...
-
- Yeah, but the software has no real provision for insuring that the things you
- want to show up in that 512K for the performance boost really get there.
- Cache architectures handle this detail automatically, but at the expense of
- cache control chips/circuitry and (typically) real-fast SRAM.
-
- --
- George Robbins - now working for, work: to be avoided at all costs...
- but no way officially representing: uucp: {uunet|pyramid|rutgers}!cbmvax!grr
- Commodore, Engineering Department domain: grr@cbmvax.commodore.com
-