Programmed Buffered Display 338

This document is the programming manual for the Digital Equipment Corporation Type 338 Programmed Buffered Display. The 338 is a precision incremental display system designed for use with the PDP-8 computer.

Key sections of the manual include: * System Overview: Functional description of the 338 as a high-speed computer-driven display system. * Display Parameters: Detailed explanation of the coordinate system, scale settings, intensity, and display states (control vs. data state). * Command Formats: Exhaustive breakdown of control state commands (Parameter, Mode, Jump, Pop, Conditional Skips, Miscellaneous) and data state commands (Point, Increment, Vector, Vector Continue, Short Vector, Character, and Graphplot). * Computer Instructions: Documentation of PDP-8 instructions used to communicate with and control the display. * Appendices: Programming examples and reference tables for mnemonics and IOT codes.