Wenderoth, Lind & Ponack, L.L.P.
Integrated circuit, computer system, and control method, including power saving control to reduce power consumed by execution of a loop
An integrated circuit provided with a processor includes a loop detection unit that detects execution of a loop in the processor, a loop-carried dependence analysis unit that analyzes the loop in order to detect loop-carried dependence, and a power control unit that performs power saving control when no loop-carried dependence is detected. By detecting whether a loop has loop-carried dependence, loops for calculation or the like can be excluded from power saving control. As a result, a larger variety of busy-waits can be detected, and the amount of power wasted by a busy-wait can be reduced.
Panasonic Corporation
G G
G06F G06F
inventional inventional
Masahiko Masashi
Saito Sugiyama