Microprogrammable asynchronous controllers for digital electronic systems

摘要: An electronic asynchronous digital controller for use in microprocessors, computers and other systems. The stores a present state code which is classified into one of at least two classes, such as either even or odd parity. A programmed instruction subsystem analyzes system inputs information to provide transition instructions indicating whether should occur the appropriate type transition. Circuitry included assure that transitions only from class different class, preferably by changing single bit. Transition can also progress if all previous have been completed. invention further includes methods asynchronously controlling