/* BEGIN include file toehold.incl.pl1 */ /* Various reserved entrypoints into the bce toehold. Also, only those things one really needs to know about the toehold. Keith Loepere, October 1983. */ /* Exclude prn, prv and pad when converting to alm version. */ /* format: style4,indattr,ifthenstmt,ifthen,idind33,^indcomtxt */ dcl 1 toe_hold aligned based, /* name so alm likes */ 2 entry_sequences (0:15) bit (72) aligned, /* described below */ 2 flagbox (64) bit (36) aligned, 2 pad1 (48) bit (36) aligned, 2 paths (4) like io_path, 2 n_paths_used fixed bin, 2 memory_state fixed bin, /* of memory/disk swapping, etc. */ 2 bce_dbr bit (72) aligned, /* of bce */ 2 pad2 (1355) bit (36) aligned, 2 multics_state aligned like mc_state; dcl 1 io_path aligned based, 2 pcw fixed bin (71) aligned, 2 port_number fixed bin (3) uns unal, /* these fields form the word that */ 2 iom_number fixed bin (15) uns unal, /* must be changed upon */ 2 channel_number fixed bin unal, /* reconfiguration of channels */ 2 pad bit (36) aligned; dcl TOE_HOLD_CRASH_ENTRY fixed bin init (0) static options (constant); /* operator causes crash by xed'ind here */ dcl TOE_HOLD_ESD_ENTRY fixed bin init (1) static options (constant); dcl TOE_HOLD_DUMP_ENTRY fixed bin init (2) static options (constant); /* place that causes an early dump */ dcl TOE_HOLD_MULTICS_ENTRY fixed bin init (3) static options (constant); /* Multics crashes by drl'ing here */ dcl TOE_HOLD_RESTART_ENTRY fixed bin init (4) static options (constant); /* bce restarts Multics by drl'ing here */ dcl TOE_HOLD_BOOT_ENTRY fixed bin init (5) static options (constant); /* bootload_tape_label starts init by tra'ing here */ dcl TOE_HOLD_BOS_ENTRY fixed bin init (12) static options (constant); dcl TOE_HOLD_BOS_NO_SAVE_ENTRY fixed bin init (13) static options (constant); dcl TOE_HOLD_BOS_MULTICS_ENTRY fixed bin init (14) static options (constant); declare mc_state_ptr ptr; /* to toehold$.multics_state */ declare 1 mc_state aligned based (mc_state_ptr), 2 mc_ aligned like mc, 2 masks (16) bit (36) aligned, 2 interrupt bit (72) aligned, 2 mode_reg bit (36) aligned, /* mode_reg and cache_mode_reg form a double word pair */ 2 cache_mode_reg bit (36) aligned, 2 dbr bit (72) aligned, 2 cfg bit (72) aligned, 2 bar bit (36) aligned, 2 old_memory_state fixed bin, 2 pad16 (6) bit (36) aligned, 2 ou_history_registers (0: 15) bit (72) aligned, 2 cu_history_registers (0: 15) bit (72) aligned, 2 du_history_registers (0: 15) bit (72) aligned, 2 apu_history_registers (0: 15) bit (72) aligned, 2 ptwam_ptrs (0: 63) bit (36) aligned, /* word alignment (mod 16, 32) of these am's matters */ 2 ptwam_regs (0: 63) bit (36) aligned, 2 sdwam_ptrs (0: 63) bit (36) aligned, 2 sdwam_regs (0: 63) bit (72) aligned; /* values for memory_state */ dcl Initial_undefined fixed bin init (0) static options (constant); /* initial coming to bce */ dcl At_bce__early fixed bin init (1) static options (constant); dcl At_bce__boot fixed bin init (2) static options (constant); /* at bce during cool boot phase */ dcl Multics fixed bin init (3) static options (constant); /* Multics coming up */ dcl Undefined_saving_state fixed bin init (4) static options (constant); /* saving state during coming down */ dcl Undefined_reading_bce fixed bin init (5) static options (constant); /* reading in bce */ dcl At_bce__crash fixed bin init (6) static options (constant); /* disk holds Multics, at bce */ dcl At_bce__shutdown fixed bin init (7) static options (constant); /* disk holds (nothing), coming to bce */ dcl Undefined_continue fixed bin init (8) static options (constant); /* swapping memory back */ dcl Undefined_saving_mem fixed bin init (9) static options (constant); %page; %include mc; /* END include file toehold.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 */