" " BEGIN INCLUDE FILE ... drl_macros.incl.alm " " These macros define operators for conditional tests to cause a system crash. " If the condition is met, a derail is executed. The macro operand field is the " a string (length <=32 characters) of the form: " MODULE: REASON. " " By enabling the commented line: zero &2.tst,0, you get a word preceding " the DRL instruction which points back to the test that caused the derail. " This is not done by default because history registers do the same thing. macro drl_mac ife &3,() warn (&1: Argument missing.) ifend use .derails. " zero &2.tst,0 &2.drl: drl &2.acc use .drlmsg. &2.acc: acc /&3/ use .text. &end macro drlmi &U.tst: tmi &U.drl maclist off,save drl_mac drlmi,&U,(&1) maclist restore &end macro drlmoz &U.tst: tmoz &U.drl maclist off,save drl_mac drlmoz,&U,(&1) maclist restore &end macro drlnz &U.tst: tnz &U.drl maclist off,save drl_mac drlnz,&U,(&1) maclist restore &end macro drltra &U.tst: tra &U.drl maclist off,save drl_mac drltra,&U,(&1) maclist restore &end macro drlpl &U.tst: tpl &U.drl maclist off,save drl_mac drlpl,&U,(&1) maclist restore &end macro drlpnz &U.tst: tpnz &U.drl maclist off,save drl_mac drlpnz,&U,(&1) maclist restore &end macro drlze &U.tst: tze &U.drl maclist off,save drl_mac drlze,&U,(&1) maclist restore &end " " END INCLUDE FILE drl_macros.incl.alm " " " " ----------------------------------------------------------- " " " " 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 " "