Abstract: Computer for implementing an event driven algorithm which utilizes a master processor and a plurality of processors arranged in modules, wherein the processors within the module are capable of operating independently of each other. The various modules are also capable of operating independently of each other and communicate with each other and the host unit by a unidirectional token ring bus. A specialized hardwired processor design is implemented to provide a pipelined flow of data to provide a more rapid algorithm simulation.

Abstract: Computer for implementing an event driven algorithm which utilizes a master processor and a plurality of processors arranged in modules, wherein the processors within the module are capable of operating independently of each other. The various modules are also capable of operating independently of each other and communicate with each other and the host unit by a unidirectional token ring bus. A specialized hardwired processor design is implemented to provide a pipelined flow of data to provide a more rapid algotithm simulation.

Abstract: Computer for implementing an event driven algorithm which utilizes a master processor and a plurality of processors arranged in modules, wherein the processors within the module are capable of operating independently of each other. The various modules are also capable of operating independently of each other and communicate with each other and the host unit by a unidirectional token ring bus. A specialized hardwired processor design is implemented to provide a pipelined flow of data to provide a more rapid simulation algorithm.

Abstract: A computer for implementing an event driven algorithm which is used in conjunction with a master computer is disclosed. The computer includes a plurality of processors coupled in a ring arrangement each of which is microprogrammable. Each processor includes a memory and a memory address generator. The generator can generate addresses based on a combination of signals from both the microcode and signals on the data bus.

Abstract: A computer for implementing an event driven algorithm which is used in conjunction with a master computer is disclosed. The computer includes a plurality of processors coupled in a ring arrangement each of which is microprogrammable. Each processor includes a memory and a memory address generator. The generator can generate addresses based on a combination of signals from both the microcode and signals on the data bus.

Abstract: The present invention relates to a method and apparatus for a system utilizing a microprocessor having a faster maximum operating frequency and a numeric data processor having a slower maximum operating frequency which runs the system at the lower clocking frequency only during those times when both the microprocessor and the numeric data processor are required to perform processing functions and runs the system at the higher clocking frequency when only the microprocessor is required. Therefore the method and apparatus of the invention provides greater operating efficiency for the microprocessor, while not sacrificing the interface capabilities of the numeric data processor. In the apparatus of the present invention, the clocking frequencies are generated by a clocking generator which is coupled to both the microprocessor and the numeric data processor. The generator responds to signals from a control source to provide either the faster or the slower clocking frequency.

Abstract: A display system particularly useful in a computer aided design system. Symbols are formed for the display from a plurality of symbol-fragments stored in memory. By simple code changes, the computer can rotate symbols without, for example, a point-by-point movement of data in memory.

Abstract: A memory accessing method is described which is particularly useful with the Multibus where a dynamic memory is employed. When the memory is accessed without a refresh collision, a ready signal is generated before the acknowledgement signal. This saves considerable time since the time between the placement of the data on the bus and the CPU's sensing of the data is reduced.