This document describes the Random ISZ test, a diagnostic program designed to test the ISZ (Increment and Skip if Zero) instruction of the PDP-8 computer. The program uses a random number generator to select memory locations, operands, and operations, with options to hold specific constants, fixed operands, or set ranges for testing. It includes instructions for loading, starting, and operating the test, as well as detailed explanations of error printouts, error recovery procedures, and how to use the program in scope mode for debugging.
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