Revision as of 11:08, 29 April 2021 edit Chatul (talk \| contribs) Extended confirmed users 8,448 edits Clarify that an SVC is a type of system call ← Previous edit		Revision as of 04:53, 3 June 2021 edit undo Peterh5322 (talk \| contribs) Extended confirmed users 6,227 edits m →Specifying I/O operations Next edit →
Line 63: ==Specifying I/O operations== For OS/360 through z/OS, the program provides an ''Input/Output Block'' (IOB) to EXCP; if the program ~~does~~executes an EXCP to multiple IOBs, the system processes them in the order that they were requested. For DASD the IOB includes a seek address, ''IOBSEEK'', in the format MBBCCHHR, where M is the extent, BB is the bin for a data cell, CCHH is the cylinder and head, and R is the record number. ==Appendages==

Execute Channel Program: Difference between revisions