This paper introduces the concept of software execution localization and defines a microcoded tool for measuring execution localization. The tool is presented as a conceptual description. This tool has been used during development of microcode assists for the System/370 Models 138 and 148, and also the 4341 Processor.
/lp/association-for-computing-machinery/a-microcoded-tool-to-sample-the-software-instruction-address-PM0EJG0O7Q