IBM 1800 Time-Sharing Executive System Concepts and Techniques

reads a physical record from an l/ a device and specifies or defines a data event control block (DECB) to be lIsed [0 indicate completion status for the

Sl3Ction 2: Systea Bacro Instruction Descriptions 121.. This facility makes i t possible to close data control blocks and their associated data sets in

CANCEL, JOIN (full eight-character user IDs and all privilege classes except A and F), LOGON, LOGOFF, DSS?, LINE?, and QUIT command options indicated in

The purpose of the DDEF command is to allow the user to specify those data sets that are to be created or proc- essed during the execution of his program or the com- mands

Precise results are obtained from all fixed-point modules except complex civision and complex ABS, where small truncation errors inevitably occnr, and the ADD

System Action: Null statement inserted. SOURCE PROGRAM CONTAINS TOO MANY BLOCKS. §Lstem Action: compilation is terminated. User Response: Re~rite program with fewer

However, the user can vary the degree of language stringency imposed on the compiler by using the ORDER and REORDER options in the PROCEDURE and BEGIN

The user can also create a data-set superstructure, called a generation data group (GDG), to exercise catalog control over future structural elements