Abstract: A system and method of shifting a clock frequency of an integrated circuit device from a first frequency to a second frequency, including alternating between the first frequency and the second frequency according to a dithering pattern, the alternating occurring for a predetermined number of cycles; and setting the clock frequency to the second frequency after the predetermined number of cycles.

Abstract: The present invention provides a method and apparatus for processing instructions in which the time allowed for the execution of an instruction is dynamically allocated. The allocation of time for execution of instruction occurs after the instruction is sent to the execution unit. The execution unit determines whether it can complete the instruction during the current processor cycle. In response to an ability to complete the instruction within the current processor cycle, the execution unit issues a busy signal to the reservation station. The reservation station continues to hold the next instruction until the execution until is capable of processing it.