03/26/85 dump_mpc

Syntax as a command:  dump_mpc mpc_name {-control_args}


Function:  performs a dump of the read/write memory of a MPC and
selectively edits the dump, the trace table, and MPC and device
statistics.


Arguments:
mpc_name
   is the name of the MPC to be dumped.  This name must appear on an
   mpc card in the config deck.  If this argument is omitted, -channel
   must be given.


Control arguments:
-dump
   displays a hexadecimal dump.
-trace
   displays an interpreted trace of the MPC.
-extend, -ext
   extends the output file if it exists.  The default is to overwrite
   the file.
-stat
   displays the MPC and device statistics.
-mpc
   displays MPC error data only.


-channel channel_name, -chn channel_name
   specifies a channel name, where channel_name is of the form
   [iomtag][channel_no] (i.e., a14).  The iomtag field must be a tag of
   a configured IOM and the channel_no must be a decimal channel
   number.  If this control argument is used, the mpc_name argument is
   optional.  If both are used, the channel must be connected to the
   MPC specified.
-output_file {path}, -of {path}
   directs dump output to the segment specified by path.  If path is
   not given, a default segment name of [mpc_name].list is used.  If
   this control argument is not given, the default is to direct output
   to your terminal.


-long
   formats output for devices with 132 columns or more.  The default is
   based on output type and can be used to override the file output
   default.
-short
   formats output for devices with fewer than 132 colums.  The default
   is based on output file type and can be used to override the file
   output default.


Access required:  You must have re access to rcp_priv_ to use the
dump_mpc command.


Notes:  If neither the -stat, -dump, -mpc, nor -trace control arguments
are specified, only the MPC and device statistics are displayed.

Switch 4 on the MPC maintenance panel is used to control tracing in the
MPC.  Tracing is only done if this switch is in the down position.  If
the trace table is being dumped to see the events leading up to a
particular error condition, it may be useful to place switch 4 in the
up position as soon as possible after the error occurs.  This inhibits
further tracing of I/O in the MPC and reduces the chances of losing
trace data caused by the table wrapping around before the dump can be
taken.


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Historical Background

This edition of the Multics software materials and documentation is provided and donated
to Massachusetts Institute of Technology by Group BULL including BULL HN Information Systems Inc. 
as a contribution to computer science knowledge.  
This donation is made also to give evidence of the common contributions of Massachusetts Institute of Technology,
Bell Laboratories, General Electric, Honeywell Information Systems Inc., Honeywell BULL Inc., Groupe BULL
and BULL HN Information Systems Inc. to the development of this operating system. 
Multics development was initiated by Massachusetts Institute of Technology Project MAC (1963-1970),
renamed the MIT Laboratory for Computer Science and Artificial Intelligence in the mid 1970s, under the leadership
of Professor Fernando Jose Corbato. Users consider that Multics provided the best software architecture 
for managing computer hardware properly and for executing programs. Many subsequent operating systems 
incorporated Multics principles.
Multics was distributed in 1975 to 2000 by Group Bull in Europe , and in the U.S. by Bull HN Information Systems Inc., 
as successor in interest by change in name only to Honeywell Bull Inc. and Honeywell Information Systems Inc. .

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Permission to use, copy, modify, and distribute these programs and their documentation for any purpose and without
fee is hereby granted,provided that the below copyright notice and historical background appear in all copies
and that both the copyright notice and historical background and this permission notice appear in supporting
documentation, and that the names of MIT, HIS, BULL or BULL HN not be used in advertising or publicity pertaining
to distribution of the programs without specific prior written permission.
    Copyright 1972 by Massachusetts Institute of Technology and Honeywell Information Systems Inc.
    Copyright 2006 by BULL HN Information Systems Inc.
    Copyright 2006 by Bull SAS
    All Rights Reserved