RL8A/RL02 Seek/Function Diagnostic

This document provides a detailed technical overview and assembly-level source code listing for the RL8A/RL02 Seek/Function diagnostic program, used for testing RL8A and RL278 controllers and up to four RL02 disk drives. It details hardware requirements (PDP-8 with 8K memory, VT278 console), software compatibility (OS/8), operational procedures, pseudo-switch configuration for customizing test execution, and comprehensive error reporting formats. The manual includes a complete set of subroutines for interfacing with the hardware, performing diagnostics, and handling operator interactions, making it an essential reference for technical maintenance and troubleshooting of these disk subsystems.