The Growth of Interest in Microprogramming: A Literature Survey
ACM Computing Surveys (CSUR)
Contemporary Concepts of Microprogramming and Emulation
ACM Computing Surveys (CSUR)
The Organization of Microprogram Stores
ACM Computing Surveys (CSUR)
Some Aspects of High-Level Microprogramming
ACM Computing Surveys (CSUR)
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One of the characteristics of a stored program computer is that given sufficient memory, any stored program computer can be programmed to simulate any other stored program computer. With the availability of 64K microprocessor systems which can execute over 1 million instructions per second, it is now feasible and practical to simulate a large mainframe computer using the native micro-processor macro assembler as a vertical microprogramming language (1). This paper describes the results of an experiment using this technique to implement an IBM 370 virtual machine on a Z80 microprocessor host using what is called pseudo microcode (PMC).