Decsystem-10

The DECsystem-10 Monitor Calls Manual (DEC-10-OMCMA-A-D) is a detailed technical reference document intended for experienced assembly language programmers working with the DECsystem-10 operating system. It provides comprehensive descriptions of the monitor programmed operators (UUOs) used for system services such as memory management, I/O programming, program execution, and inter-process communication. The manual is organized into chapters covering memory format, user programming, non-I/O UUOs, I/O programming (both for nondirectory and directory devices), and advanced facilities like the Inter-Process Communication Facility (IPCF) and monitor algorithms. It includes extensive appendices with tables for card codes, device status bits, and error codes, as well as an alphabetical index of all monitor calls.