/* Begin mca_data_area.incl.pl1 */ /****^ HISTORY COMMENTS: 1) change(86-03-19,Fawcett), approve(86-03-19,MCR7374), audit(86-04-28,Lippard), install(86-09-16,MR12.0-1159): Created for control of the MCA. This is a template for the ioi workspace needed for the MCA communications. END HISTORY COMMENTS */ /* Created Sept 84 by R. A. Fawcett from information in "EPS-1 DIPPER Maintainability" REV A (MAY 3, 1983) */ dcl data_header_ptr ptr; dcl (data_size_1, data_size_2) fixed bin (21) init (0); dcl io_param_blk_ptr ptr; dcl mca_dcw_list_ptr ptr; dcl mca_work_space_ptr ptr; dcl 1 mca_work_space based (mca_work_space_ptr), 2 list_of_dcw like mca_dcw_list, 2 status_area like istat, 2 data_header_1 aligned like data_header, 2 data_1 char (data_size_1), 2 data_header_2 aligned like data_header, 2 data_2 char (data_size_2); dcl 1 data_header based (data_header_ptr) aligned, 2 type bit (9) unal, /* must be equal to "000"b3 (MBZ) */ 2 definer fixed bin (9) unal unsigned, /* defines type of info in header */ 2 ctl_sw bit (18) unal, /* "currently undfined" mbz = "000000"b3 */ 2 host_sts_ign1 bit (1) unal, 2 host_sts_msb bit (8) unal, 2 host_sts_ign2 bit (1) unal, 2 host_sts_lsb bit (8) unal, 2 rd_flpy fixed bin (9) unal unsigned, /* 0 = data files from host */ /* 1 = data files from flopy */ 2 io_param_blk like io_parameter_block unal; dcl 1 io_parameter_block based (io_param_blk_ptr) unal, 2 open fixed bin (9) unal unsigned, 2 cmd bit (18), 2 sts_ptr bit (18), /* Unused */ 2 file_name char (8), /* file name for this request */ 2 options bit (18), /* Unused */ 2 source_ptr bit (18), /* Unused */ 2 source_len, /* data_size = source_len_msb||source_len_lsb MCA to HOST */ 3 source_len_ign1 bit (1), 3 source_len_msb bit (8), 3 source_len_ign2 bit (1), 3 source_len_lsb bit (8), 2 dest_ptr bit (18), /* Unused */ 2 blk_ct, /* if MCA to HOST blk_ct_msb||blk_ct_lsb = MAX number of 256 byte BLOCKS */ /* else not used */ 3 blk_ct_ign1 bit (1), 3 blk_ct_msb bit (8), 3 blk_ct_ign2 bit (1), 3 blk_ct_lsb bit (8), 2 dest_len, /* supplied by host as the number of bytes in data_field max value is 16128 */ /* dest_len_msb = substr(unspec(data_size),21,8) */ /* dest_len_lsb = substr(unspec(data_size),29,8) */ 3 dest_len_ign1 bit (1), 3 dest_len_msb bit (8), 3 dest_len_ign2 bit (1), 3 dest_len_lsb bit (8); dcl 1 mca_dcw_list based (mca_dcw_list_ptr), 2 idcw1 like idcw, 2 dcw1 like dcw, 2 idcw2 like idcw, 2 dcw2 like dcw; %include iom_dcw; %skip (4); %include iom_pcw; %skip (4); %include ioi_stat; %skip (4); /* Constants used for data_header.definer */ dcl DATA_FROM_HOST fixed bin (9) unsigned init (0) static options (constant); dcl WRITE_CONSOLE fixed bin (9) unsigned init (1) static options (constant); dcl WRITE_READ_CONSOLE fixed bin (9) unsigned init (2) static options (constant); dcl DATA_FROM_MCA fixed bin (9) unsigned init (3) static options (constant); dcl REQ_DATA_FROM_HOST fixed bin (9) unsigned init (4) static options (constant); dcl STATUS_FROM_MCA fixed bin (9) unsigned init (5) static options (constant); dcl SEEK fixed bin (9) unsigned init (6) static options (constant); dcl CON_DATA_FROM_HOST fixed bin (9) unsigned init (7) static options (constant); dcl BIN_DATA_FROM_HOST fixed bin (9) unsigned init (8) static options (constant); dcl ABORT_SES_FROM_HOST fixed bin (9) unsigned init (9) static options (constant); /* End mca_data_area.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 */