Tc01 Basic Exerciser

Summary

The TC01 Basic Exerciser is a diagnostic software suite designed for the PDP-8 computer to test the data handling and motion capabilities of the TC01 (or TC08) DECtape control unit and up to eight TU55 DECtape transports.

Key components and functionality:

• Purpose: To verify the operational integrity of DECtape controls and drives, both for initial installation and subsequent maintenance.
• Test Routines: Includes multiple routines such as Basic Motion, Search (Find All Blocks, Basic Search), Start/Stop/Turnaround, Write/Read Data (with selectable test patterns), and Parity Generation/Checking.
• Loop Modes: Provides "Scope Loop" variants (Write, Read, and Search) to keep the tape cycling for extended visual verification using an oscilloscope or drive indicators.
• Operation: Most routines are managed via the Switch Register and Teletype keyboard input.
• Error Reporting: Malfunctions trigger descriptive error messages on the Teletype, detailing the specific drive, operation, direction, mode, status, and block involved.
• Static Register Test: An automated diagnostic check of Status Registers A and B that runs before other tests.