Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!snorkelwacker!mit-eddie!uw-beaver!uw-june!dylan
From: dylan@cs.washington.edu (Dylan McNamee)
Newsgroups: comp.sys.amiga.hardware
Subject: SetCPU and the 2091
Keywords: SetCPU, 2091
Message-ID: <11051@june.cs.washington.edu>
Date: 10 Mar 90 08:29:26 GMT
Reply-To: dylan@june.cs.washington.edu (Dylan McNamee)
Organization: University of Washington, Computer Science, Seattle
Lines: 21


Thanks to many people on the net, here is a SetCPU file entry for using 
CardROM option with the 2091:

0x202 0x03 0x10000 0x2000 0x3FFF CBM_2091_SCSI_Controller

These are, in order, Manufacturer, Product (may be 0x02, use Dave Haynie's
CacheCard Program to check,) Card size, Base Address of ROM, size of ROM.

I found the size of the ROM by guessing and checking.  The system crashed
when I was wrong.  Be sure to use the verbose option of setcpu, to be sure
your file was accepted, and always use the cardrom option along with the
Fastrom option.

Now for the wierd part;  I'm not getting _any_ performance improvement.
It's about 382K/sec Reads, and 335K/sec Writes (32KBits at a time) using
DiskSpeed.  Has anyone had any better luck?  About what should I be getting?
Anyone?  Anyone?

dylan mcnamee
dylan@cs.washington.edu