Random JMP-JMS Test

This document outlines the diagnostic program (MAINDEC-8E-D8JC-D) designed to test the JMS (Jump to Subroutine) instruction on PDP-8E systems. The test operates by using a random number generator to select 'from' and 'to' memory addresses, executing a JMP to the JMS instruction, and verifying that the interrupt and subsequent program counter storage operations function correctly. The document includes detailed instructions for loading and starting the test, describes potential error halts and printouts, explains how to interpret those error logs, and provides a full source code listing in MACRO-8 assembly.