02/06/84  condition_interpreter_


Entry points in condition_interpreter_:
   (List is generated by the help command)


:Entry: condition_interpreter_:  02/06/84 condition_interpreter_


Function: is used by subsystem condition handlers to obtain a
formatted error message for all conditions except quit, alrm, and
cput.  Some conditions do not have messages and others cause special
actions to be taken.  These are described in "Notes" below.  (For more
information on conditions, see the Programmer's Reference Manual.)


Syntax:
declare condition_interpreter_ entry (ptr, ptr, fixed bin, fixed bin,
     ptr, char(*), ptr, ptr);
call condition_interpreter_ (area_ptr, m_ptr, mlng, mode, mc_ptr,
     cond_name, wc_ptr, info_ptr);


Arguments:
area_ptr
   is a pointer to the area in which the message is to be allocated, if
   the message is to be returned.  The area size should be at least 300
   words.  If null, the message is printed on the error_output I/O
   switch.  (Input)
m_ptr
   points to the allocated message if area_ptr is not null; otherwise
   it is not set.  (Output)
mlng
   is the length (in characters) of the allocated message if area_ptr
   is not null.  If area_ptr is null, the length is not set.  Certain
   conditions (see "Notes" below) have no messages; in these cases,
   mlng is equal to 0.  (Output)


mode
   is the desired mode of the message to be printed or returned.
   (Input) It can have the following values:
   1   normal mode
   2   brief mode
   3   long mode
mc_ptr
   if not null, points to machine conditions describing the state of
   the processor at the time the condition was raised.  (Input)
cond_name
   is the name of the condition being raised.  (Input)


wc_ptr
   is usually null; but when mc_ptr points to machine conditions from
   ring 0, wc_ptr points to alternate machine conditions.  (Input)
info_ptr
   if not null, points to the information structure described in the
   Programmer's Reference Manual.  (Input)


Notes:  The following conditions cause a return with no message:

     command_error
     command_question
     finish
     stringsize


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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