PDP-8

This document describes the PDP-8 Instruction Test (Part 2B), identified by the product code MAINDEC 08-D02B-D. The program is designed to test the 2s complement addition (TAD) and rotation logic (RAL, RTL, RAR, RTR) of the PDP-8 processor. The document covers system requirements, loading instructions via RIM or Binary Loaders, and detailed operator control using the SWITCH REGISTER to manage test execution and error reporting. It includes descriptions of the testing methods, error analysis, and provides a full program listing.