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- Path: ar.ar.com.au!not-for-mail
- From: storm@ar.ar.com.au (Storm)
- Newsgroups: comp.sys.amiga.programmer
- Subject: Re: One hardware-basher's manifesto
- Date: 27 Feb 1996 12:40:50 +1100
- Organization: I need to put my ORGANIZATION here.
- Message-ID: <4gtnf2$8kt@ar.ar.com.au>
- References: <04000205714080640503@BIRDLAND> <4ge8na$vhe@ar.ar.com.au> <38232623@kone.fipnet.fi>
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-
- Jyrki Saarinen (jsaarinen@kone.fipnet.fi) wrote:
-
- : > Is it not true that data burst mode will slow you down if you are
- : > "randomly" accessing memory? I've heard that it will, although I have not
- : > experimented with it. Logic seems to dictate that it could.
-
- : It depends on the memory system, on my Warp Engine with 4-2-2-2
- : memory subsystem, it is faster to have data burst on even
- : when accessing FAST-ram randomly. I guess that is because
- : the data cache will be switched off too when data burst
- : is off, and so will copyback.
-
- : On the 68040 data burst cant be switched off without turning
- : the data cache and thus copyback off, too.
-
- Is this the same on an 060? And if it is, that only leaves the 030..
- which is the only one of the family I have here to experiment with, so
- I might have a bit of a play around..
-
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