Apparatus and method for controlling microinstruction sequencing by selectively inhibiting microinstruction execution

摘要: A microprogrammed digital computer employing a plurality of programmable read only memories containing stored control words which are specially chosen so as to provide for microinstruction sequencing in manner the first instance assumes that no branching possibilities present, even though one or more may fact be present flow path. The correctness is monitored concurrently with execution during each cycle decision required. When an incorrect assumed sequence detected, correction provided using indexing and inhibiting signals selectively response states selected system conditions cycle.