A Survey of Current Work in Microprogramming

The purpose of this article is to provide a brief survey of current work in microprogramming and to assess future developments in microprogramming in terms of probable advances in semiconductor technology. The article is primarily directed toward readers who understand that "microprogram control" refers to implementation of the control function of a digital computer by means of control sequences that are stored in a memory rather than generated by a hardware control sequencer. The reader should also realize that the "machine" instructions of microprogrammed computers provide a means for organizing microinstructions into logically convenient modules.