DECnet-RSX Programmer's Reference Manual

This document is a programmer's reference manual for DECnet-RSX, dated September 1985. It provides technical details on the programming facilities available in the DECnet-RSX environment, including intertask communication, remote file access, task control, and the Direct Line Access Controller (DLX) interface.

The manual is organized into four main chapters:

1. Introduction: Covers basic concepts such as intertask communication, remote file access, and remote task control for applications running on RSX-11M/11M-PLUS/11S systems.
2. DECnet-RSX MACRO-11 Programming Facilities: Details the MACRO-11 macro library used for network intertask communication.
3. Programming Facilities for FORTRAN, COBOL, and BASIC-PLUS-2: Describes subroutines and calls for intertask communication, remote file access, and task control for these higher-level languages.
4. DLX: Direct Line Access Controller: Explains how to use DLX for direct message transfer and reception, bypassing standard DECnet interfaces.

The document also includes extensive appendices detailing error/completion codes, object type definitions, and provide various code examples to assist developers in writing network applications for DECnet-RSX.