/* BEGIN INCLUDE FILE ... fgbx.incl.pl1 */
/* last modified 5/3/77 by Noel I. Morris	*/
/* Modified 8/79 by R.J.C. Kissel to add FNP blast message. */
/* Modified 7/82 BIM for recognizable sentinel field */

/* NOTE: THIS INCLUDE FILE DESCRIBES THE FLAGBOX WITHIN THE BOS TOEHOLD, WHICH
HAS NO VALUE WHATSOEVER.  THE REAL MULTICS/BCE TOEHOLD FLAGBOX IS DESCRIBED BY
THE FLAGBOX INCLUDE FILE. */

/* The contents of this segment are data shared by Multics and BOS.
   This segment occupies the 2nd, 3rd, 4th, and 5th 16-word blocks of the BOS toehold. */

dcl  flagbox$ ext;
dcl  fgbxp ptr;

dcl 1 fgbx based (fgbxp) aligned,
    2 flags (36) bit (1) unal,			/* communications switches */
    2 slt_segno bit (18),				/* segment # of the SLT */
    2 pad1 fixed bin,
    2 rtb,					/* return to BOS info */
     (3 ssenb bit (1),				/* "1"b if storage system enabled */
      3 call_bos bit (1),				/* "1"b if BOS called by operator */
      3 shut bit (1),				/* "1"b if BOS called after shutdown */
      3 mess bit (1),				/* "1"b if message has been provided */
      3 alert bit (1),				/* "1"b if audible alarm to be sounded */
      3 pad bit (25),
      3 bos_entry fixed bin (5)) unal,			/* type of entry into BOS
						   0 => XED 10002 (BOS entry)
						   1 => XED 10004 (Multics entry)
						   2 => XED 10000 (manual entry) */
    2 sentinel char (32) aligned,			/* set by BOS (for now) */
    2 sst_sdw bit (72),				/* set by init_sst */
    2 hc_dbr bit (72),				/* set by start_cpu, idle DBR */
    2 message char (64),				/* message for return to BOS */
    2 fnp_blast char (128);				/* message for FNP use when Multics is down. */

declare FLAGBOX_SENTINEL char (32) init ("Flagbox & Toehold Valid") int static options (constant);

/* END INCLUDE FILE ... fgbx.incl.pl1 */


*/
                                          -----------------------------------------------------------


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. .

                                          -----------------------------------------------------------

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

*/