Abstract: Systems and methods for executing program instructions in a data processor at a variable rate. In one embodiment, a processor is configured to examine received instructions, identify an execution time associated with each instruction, and generate clock pulses at necessary intervals to obtain the appropriate execution time for each instruction. Instructions may be associated with types or “bins” that are in turn associated with corresponding execution times. The clock pulses may be generated by routing successive pulses through circuits that delay the pulses by desired amounts of time. The processor may also be configured to identify instructions which are input/output (I/O) instructions and are initiated or terminated by completion of handshake procedures and therefore have execution times that vary from one instance to the next.

Abstract: Systems and methods for processing data using an array of data processing elements that are coupled together with a variable precision interconnect. One embodiment comprises data processing elements coupled by variable precision interconnects to form a row-column array. The interconnects and/or data processing elements may be synchronous or asynchronous. The data processing elements may operate in a fixed manner, or they may be programmable, and selectable data processing elements in the array may be bypassed. The interconnects and data processing elements may be configured to handle data in a digit-serial manner, with tags for each digit identifying whether the digit is the first and/or last digit in a data word. The data processing elements may be coupled to a system bus that enables communication of data between the data processing elements and external devices and allows control information to be communicated to and from the data processing elements.