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- Newsgroups: comp.sys.amiga.hardware
- Path: sparky!uunet!spsgate!mogate!newsgate!192.5.251.3!abair
- From: abair@parsons.sps.mot.com (Alan Bair)
- Subject: Re: SetCPU
- In-Reply-To: alewis@vx9000.weber.edu's message of 8 Sep 92 22:28:00 GMT
- Message-ID: <ABAIR.92Sep9002447@parsons.sps.mot.com>
- Sender: usenet@newsgate.sps.mot.com
- Nntp-Posting-Host: 223.12.249.122
- Organization: AMCU, Motorola Inc., Austin, Texas.
- References: <8SEP199215283822@vx9000.weber.edu>
- Date: Wed, 9 Sep 1992 07:24:47 GMT
- Lines: 33
-
- In article <8SEP199215283822@vx9000.weber.edu> alewis@vx9000.weber.edu (ALEWIS) writes:
-
- Okay, I'm thoroughly confused here. I read some messages about SetCPU from
- dave, but I don't know what it is. Could someone please explain it to me?
-
- I noticed in another message daves explanation of RAMSEY and SCRAM and such,
- where he indicated the OS (2.04 I'm assuming) automatically detected SCRAM
- and used it, but in another message someone left a CPU command with options
- for cache and burst. Are these different utilities, and where can I get them.
- I've looked in the AmigaDOS 3rd edition for SetCPU and it wasn't in there.
-
- My real question is how can I get the best performance out of my 3000 if I'm
- using the startup-sequence the 2.04 installer installs and nothing else. I
- remember hearing about a way to copy the ROM to Fast-RAM, how do I do that?
-
- Thanks!
-
- SetCPU is a pre-2.0x command that Dave wrote to allow setting various processor
- options and I think allowed loading ROM into Fast RAM.
-
- CPU is a new command that comes with 2.0x, at least I have it on my 3000 with
- 2.04. From the discussion so far, it looks to get the best performance;
-
- 1. Don't use any of those non-CBM RAMSEY tweaking tools.
-
- 2. In your startup script, add "CPU BURST" to turn on burst mode on
- the 68030.
- --
- Alan Bair AMCU DSCS
- Motorola, Inc. (Design Software &
- Mail Stop OE-320 Computer Services)
- 6501 William Cannon Dr. West
- Austin, TX 78735-8598 abair@parsons.sps.mot.com
-