BASIC-PLUS-2 RSX/IAS/VMS

This document serves as a user guide for the BASIC-PLUS-2 Language Processor, covering its use on RSX-11M V3.2, RSX-11M PLUS V1.0, IAS V3, and VMS V1.6 operating systems, as well as TRAX environments. It is intended for users already familiar with RSX/IAS operating systems and the BASIC-PLUS-2 language, rather than as a tutorial.

The manual describes the BASIC-PLUS-2 Compiler, including its commands, syntax, program editing, and debugging aids. It details memory resident libraries (BASIC2 and BASRMS object libraries), various file organizations (terminal-format, block I/O, virtual array, sequential, relative, indexed), and file operations. Additionally, it covers program segmentation through subprogramming (BASIC to BASIC, MACRO, and COBOL) and chaining, explaining how to build and execute task images. The document also includes information on BASIC-PLUS-2 utilities such as the Translator (for converting BASIC-PLUS programs), the Resequencer (for renumbering lines), and the Cross Reference Program. Appendices provide summaries of language elements, error messages (compile-time and run-time), ASCII codes, data representation, and recommended coding conventions.