The development of user microprogramming
Richard T. Thomas · 1974
Over the past few years there has been an increasing interest in user microprogramming. This paper traces the development of user microprogramming, surveying several different modifications made to commercially available microprogram control computers. A brief overview is given of various proposals for machines allowing user microprogramming as a basic design goal. Also, several contemporary machines which allow user microprogramming are discussed. The various microgrogramming facilities provided with the machines are presented, along with the manner in which some of the problems inherent in allowing user microprogramming have been dealt with.