/*	BEGIN INCLUDE FILE ...  db_break_map_map.incl.pl1
*	Written  Dec 72  for the  6180  by  Bill Silver.
*	Changed  Feb 73  for eis restart by Bill Silver.
*
*	This include file contains the declaration for the debug break map.
*/

dcl	break_map_ptr	ptr,		/* Pointer to break map header. */
	break_slot_ptr	ptr;		/* Pointer to individual break slot entry. */


dcl     1	old_bmap  based(break_map_ptr)  aligned,/* Old version of break map header. */
	2 pad(4)	bit(36),
	2 breaks(1),
	  3 slot (size(break_slot))  bit(36);

dcl    1	bmap  based (break_map_ptr)  aligned,	/* Version 2 break map header. */
	2 num_slots	fixed bin,	/* Number of break slots allocated. */
	2 num_set		fixed bin,	/* Number of breaks actually set. */
	2 bit_count	fixed bin(24),	/* Bit count of the whole segment. */
	2 version		char(4),		/* Break map version number. */
	2 eis,				/* Used to restart EIS instructions.. */
	  3 tra		bit(36),		/* Replaces instruction after eis instr. */
	  3 instructions(9)	bit(36),		/* Executed after eis inst restarted. */
	  3 mme2_indw	bit(18),		/* Indirect word: offset -> loc of break. */
	  3 inst_indw	bit(18),		/* Indirect word: offset -> inst after EIS inst. */
	  3 save		bit(36),		/* Used to save A register. */
	  3 mme2		bit(36),		/* Used to save mme2 instruction. */
	  3 inst		bit(36),		/* Used to save inst after eis inst. */
	2 reserved(13)	bit(36),		/* Reserved for future use. */
	2 breaks(1),			/* Array of break slots. */
	  3 slot (size(break_slot))  bit(36);


dcl     1	break_slot  based(break_slot_ptr)  aligned,
	  2 type		fixed bin,	/* -1 => slot is free, 
					*   0 => regular break,     1 => temporary,
					*   2 => regular disabled,  2 => temporary disabled */
	  2 offset	fixed bin(18),	/* Offset of the break word. */
	  2 old_word	bit(36),		/* Previous contents of break word. */
	  2 skip_count	fixed bin,	/* Number of times to skip break. */
	  2 line_no	fixed bin,	/* Source line corresponding to break. */
	  2 num_words	fixed bin,	/* Number of words in instruction. */
	  2 reserved(2)	fixed bin,	/* Reserved for possible future use. */
	  2 comd_len	fixed bin,	/* Length of command line,  0 => no command */
	  2 comd_line	char(128),	/* Command line to be executed at break time. */
	  2 cond_len	fixed bin,	/* Length of condition data,  0 => no condition. */
	  2 cond_data	char(236);	/* Contents of all the condition data.
					*  Format of this data specified in procedures
					*  which process semantics of condition data. */


/*	END of INCLUDE FILE ...  db_break_map_map.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

*/