IAS System Directives Reference Manual

This manual provides detailed information on IAS (IAS Version 3.4) system directives. It is designed for experienced MACRO-11 and FORTRAN programmers to manage task control, memory management, and intertask communication. Key sections include:

• Using System Directives: Explains how to invoke directives using macros or subroutines, parameter block (DPB) formatting, and error handling.
• Memory Management: Covers virtual address windows, memory regions, and related directives.
• System Directive Categories: Summarizes directives by function (Task Execution, Information, Event-associated, Trap-associated, I/O and Intertask Communication, and Memory Management).
• System Directive Descriptions: Provides alphabetical details for each directive, including purpose, macro call syntax, local symbol definitions, DSW return codes, macro expansion, and FORTRAN subroutine calls.

Prerequisite knowledge includes the IAS Task Builder Reference Manual and IAS Executive Facilities Reference Manual.