RE: hard drive access
Gene Heskett sends Greetings to Rick Eicher;
>When I type in the bug147 iop command on this mvme147 board I get the
>following.
>Exception: F-Line
>PC=FFFE077C SR=2704
>Format/Vector=0020
>Any one know what this is?
I might be able to take a shot at this, as its an error I see, or did
see initially, on this amiga after I'd put an 040 cpu in it. The 040
doesn't have all the commands the lessor chips (000,020,030) have, and
normally there is a library linked in to handle the exceptions when some
obscure floating point command is encountered, this is call a line F
exception because the high nibble of the command being a $F tells the
cpu to use the fpu section for this codes execution. If the library is
broken, and the one that came from commode-door, version 37.3 or 37.30
is, then the exception will fall thru and be reported during the
ensueing crash. IF the library could handle it via emulation routines,
then you would never see the error, nor be aware that it occured.
Useing the latest libraries from the MMULib.lha package, the problem is
indeed handled correctly. That library, and its associated support and
install files is availablke of course from any aminet mirror.
This would, or should, only be encountered on an 040/060 equipt machine,
or on a math-chipless 020 or 030 board. I personally have no knowledge
of the hardware sitting on a mvme147 board, but rather extensive Amiga
experience instead, so all this could be so much drivel.
Cheers, Gene
--
Gene Heskett, CET, UHK |Amiga A2k Zeus040, 70MB ram, 31 gigs
| Linux @ 500mhz, 320MB ram, 50 gigs
email gene underscore heskett at iolinc dot net
#Amiga based X10 home automation program EZHome, see at:#
<http://www.iolinc.net/gene_heskett>
This messages reply content, but not any previously quoted material,
is © 2001 by Gene Heskett, all rights reserved.
--
When I run the pcc command I get the following:
Failed
--SCSI port reset signal is active---
Reply to: