Instruction Test 2

This document is a diagnostic program (MAINDEC-8E-D8BB) designed to perform extensive testing of autoindexing, indirect addressing, and the DCA instruction on the PDP-8/E computer. It also provides minimal coverage for interrupt, AND, TAD, ISZ, JMS, JMP, and processor IOT instructions. The program follows a structured testing sequence, grouped by functional classification, and provides error reporting via programmed halts that allow for operator intervention using an oscilloscope to troubleshoot failing tests.