/* Begin include file alm_list_beads.incl.pl1. */ /* Created 19 November 1970, R H Campbell. */ /* Modified 25 November 1970, R H Campbell. */ /* Added entry_bead_ptr to external_definition_bead for new object segment format, 30 April 1972, R F Mabee. */ /* Last modified on 04/30/72 at 23:40:00 by R F Mabee. */ declare 1 acc based aligned, /* ACC format string for symbol name. */ 2 lg bit (9) unaligned, /* The length. */ 2 cs character (31) unaligned; /* The string. */ declare 1 call_out_bead based aligned, /* Mastermode callout link list bead. */ 2 (kind, next) bit (18) unaligned, /* Kind of bead (3), rel ptr to next bead. */ 2 (expression, modifier) bit (18) unaligned, /* Rel ptr to expression bead, modifier. */ 2 (type_pair, transfer_vector_no) bit (18) unaligned, /* Rel ptr to type pair bead, ? */ 2 (call_pc, crh) bit (18) unaligned, /* Location of call, ? */ 2 (clh, inhibit) bit (18) unaligned; /* ? inhibit bit. */ declare 1 entry_bead based aligned, /* Entry interlude link list bead. */ 2 (kind, next) bit (18) unaligned, /* Kind of bead (2), rel ptr to next bead. */ 2 (link_no, transfer_vector_no) bit (18) unaligned, /* ? */ 2 (transfer_vector, inhibit) bit (18) unaligned; /* Rel ptr to transfer vector bead, inhibit bit. */ declare 1 expression_bead based aligned, /* Expression list bead. */ 2 (location, next) bit (18) unaligned, /* Location of output expression word, rel ptr to next bead. */ 2 (type_pair, expression) bit (18) unaligned, /* Rel ptr to type pair bead, expression value. */ 2 (clh, location_counter) bit (18) unaligned; /* ? */ declare 1 external_definition_bead based aligned, /* External definition list bead. */ 2 (name, next) bit (18) unaligned, /* Rel ptr to name list bead, rel ptr to next bead. */ 2 (location, class) bit (18) unaligned, /* ? */ 2 (trap, location_counter) bit (18) unaligned, /* Rel ptr to trap list bead, ? */ 2 entry_bead_ptr bit (18) unaligned; /* Non-zero if defines entry. */ declare 1 link_bead based aligned, /* Element of link list. */ 2 (kind, next) bit (18) unaligned, /* Kind of bead (1), rel ptr to next bead. */ 2 (expression, modifier) bit (18) unaligned; /* Rel ptr to expression bead, modifier field. */ declare 1 literal_bead based aligned, /* Literal list bead. */ 2 (location, next) bit (18) unaligned, /* "Load address" of literal, rel ptr to next bead. */ 2 (location_counters, size) bit (18) unaligned, /* Rel ptr to location counter rel ptrs, size in words. */ 2 words (10), /* The literal. */ 3 (left, right) bit (18) unaligned; /* Separate relocatable halves. */ declare 1 location_counter_bead based aligned, /* Symbol table bucket list bead for location counter name. */ 2 (symbol, next) bit (18) unaligned, /* Rel ptr to symbol name, rel ptr to next bead. */ 2 (flags, value) bit (18) unaligned, /* Symbol flags, current value. */ 2 (left_join, right_join) bit (18) unaligned, /* Rel ptrs to joined location counter beads. */ 2 (origin, max_value) bit (18) unaligned, /* Lowest value, highest value. */ 2 (mod_value, section) bit (18) unaligned; /* Indicator for rounding origin, section in which it occurs. */ declare 1 location_counters (10) based aligned, /* Location counter rel ptrs for relocatable literals. */ 2 (left, right) bit (18) unaligned; /* One for each half word. */ declare 1 name_bead based aligned, /* Name list bead. */ 2 (name, next) bit (18) unaligned, /* Rel ptr to name, rel ptr to next bead. */ 2 (section, location) bit (18) unaligned; /* ? */ declare 1 statement_bead based aligned, /* "Collation tape" list bead. */ 2 (value, next) bit (18) unaligned, /* Value of current location counter, rel ptr to next bead. */ 2 flags bit (36), /* Flags for this statement. */ 2 location_counter bit (18); /* Rel ptr to active location counter bead. */ declare 1 symbol_bead based aligned, /* Symbol table hashcode bucket list bead. */ 2 (symbol, next) bit (18) unaligned, /* Rel ptr to symbol name, rel ptr to next bead. */ 2 (flags, value) bit (18) unaligned, /* Symbol flags, symbol value. */ 2 location_counter bit (18); /* Rel ptr to related location counter bead. */ declare 1 transfer_vector_bead based aligned, /* Transfer vector list bead. */ 2 (clh, next) bit (18) unaligned, /* ?, rel ptr to next bead. */ 2 (transfer_vector_no, location) bit (18) unaligned, /* ? */ 2 (location_counter, inhibit) bit (18) unaligned; /* ? inhibit bit. */ declare 1 trap_bead based aligned, /* Trap list bead. */ 2 (location, next) bit (18) unaligned, /* Location of output trap word, rel ptr to next bead. */ 2 (call, argument) bit (18) unaligned; /* Rel ptr to call link bead, rel ptr to argument link bead. */ declare 1 type_pair_bead based aligned, /* Type pair list bead. */ 2 (location, next) bit (18) unaligned, /* Location of output type pair words, rel ptr to next bead. */ 2 (type, trap) bit (18) unaligned, /* Type of link, rel ptr to trap list bead. */ 2 (segment, symbol) bit (18) unaligned; /* Rel ptrs to name list beads for segment, symbol. */ /* End of include file alm_list_beads.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 */