PDP-8 Instruction Test

This document outlines the usage and functionality of the PDP-8 Instruction Test - Part 2B (Product Code: MAINDEC 08-D02B-D). The diagnostic program is designed to test the processor's 2s complement addition (TAD) and rotation logic (RAL, RTL, RAR, RTR). It utilizes pseudo-random numbers for addition testing and sequential patterns for rotation logic testing. The document provides instructions on loading procedures, switch settings for operator control, error detection, and interpretation of error printouts, including a guide for system recovery after halt conditions.