/* BEGIN INCLUDE FILE ... mcs_interrupt_info.incl.pl1 */

/* Defines constants and structures  used by MCS interrupt handlers */

/* Created 08/21/78 by Robert Coren */
/* Echo negotiation types added sometime by Bernie Greenberg */
/* TIMER and USER_INTERRUPT added in spring of 1982 by Olin Sibert */
/* MASKED type added June 23, 1982, by Robert Coren */

dcl  DIALUP fixed bin int static options (constant) init (1);
dcl  HANGUP fixed bin int static options (constant) init (2);
dcl  CRASH fixed bin int static options (constant) init (3);
dcl  SEND_OUTPUT fixed bin int static options (constant) init (4);
dcl  INPUT_AVAILABLE fixed bin int static options (constant) init (5);
dcl  ACCEPT_INPUT fixed bin int static options (constant) init (6);
dcl  INPUT_REJECTED fixed bin int static options (constant) init (7);
dcl  QUIT fixed bin int static options (constant) init (8);
dcl  LINE_STATUS fixed bin int static options (constant) init (9);
dcl  DIAL_STATUS fixed bin int static options (constant) init (10);
dcl  WRU_TIMEOUT fixed bin int static options (constant) init (11);
dcl  SPACE_AVAILABLE fixed bin int static options (constant) init (12);
dcl  ACKNOWLEDGE_ECHNEGO_INIT fixed bin int static options (constant) init (13);
dcl  ACKNOWLEDGE_ECHNEGO_STOP fixed bin int static options (constant) init (14);
dcl  TIMER fixed bin int static options (constant) init (15);
dcl  USER_INTERRUPT fixed bin int static options (constant) init (16);
dcl  MASKED fixed bin int static options (constant) init (17);

dcl  interrupt_info bit (72) aligned;

dcl 1 dialup_info aligned,				/* for use with DIALUP interrupt */
    2 line_type fixed bin (9) unal uns,
    2 buffer_pad fixed bin (9) unal uns,		/* free space multiplexer would like in output bufs */
    2 baud_rate fixed bin (18) unal uns,
    2 max_buf_size fixed bin (9) unal uns,
    2 receive_mode_device bit (1) unal,			/* device must be told to enter receive mode */
    2 pad bit (26) unal;

dcl 1 rtx_info aligned,				/* for use with ACCEPT_INPUT interrupt */
    2 input_chain unaligned,
      3 chain_head bit (18) unaligned,
      3 chain_tail bit (18) unaligned,
    2 input_count fixed bin (18) unal uns,
    2 flags unaligned,
      3 break_char bit (1),				/* data contains a break character */
      3 output_in_fnp bit (1),			/* there is output in the FNP */
      3 output_in_ring_0 bit (1),			/* there is output in ring 0 */
      3 formfeed_present bit (1),			/* input contains a formfeed character */
      3 pad bit (14);

dcl 1 timer_info aligned,				/* Info supplied with TIMER interrupt */
    2 id bit (36) aligned,				/* ID which was supplied in call to mcs_timer$set */
    2 subchan_idx fixed bin;				/* Index of subchannel on whose behalf timer was set */

/* END INCLUDE FILE ... mcs_interrupt_info.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

*/