Programmed Data Processor-8 Users Handbook

This handbook serves as a comprehensive guide for the Programmed Data Processor-8 (PDP-8), a high-speed, general-purpose digital computer manufactured by the Digital Equipment Corporation. It provides detailed technical information on programming, operating, and interfacing the system.

Summary of Contents:

• System Overview: Introduces the PDP-8’s architecture, including its 12-bit, fixed-word-length processor, 1.5-microsecond core memory cycle time, and flexible input/output capabilities.
• Memory and Processor: Describes the internal registers (Accumulator, Link, Program Counter, etc.), the instruction set (memory reference, IOT, and operate instructions), and basic programming techniques like indirect addressing and auto-indexing.
• System Options: Details specialized components such as memory extension control, memory parity, the extended arithmetic element (for hardware multiplication and division), and an automatic restart feature.
• Input/Output Equipment: Covers the operation and programming of various peripheral devices, including Teletype units, high-speed perforated tape readers/punches, A/D and D/A converters, display equipment, plotters, card readers, magnetic drum systems, DECtape, and magnetic tape systems.
• Operation and Installation: Explains standard operating procedures using the operator console, as well as installation planning, environmental requirements, and electrical interface specifications.
• Appendices: Provides quick-reference tables for instructions, ASCII codes, conversion tables (octal/decimal), loader sequences (RIM and Binary), and summaries of available programming and maintenance software.