For highest performance, a modern microprocessor must be able to determine if an instruction is ready in the same cycle in which it is to be selected for execution. This creates a...
Design of wakeup-free issue queues is becoming desirable due to the increasing complexity associated with broadcast-based instruction wakeup. The effectiveness of most wakeup-free...
Jie S. Hu, Narayanan Vijaykrishnan, Mary Jane Irwi...
In modern superscalar processors, the complex instruction scheduler could form the critical path of the pipeline stages and limit the clock cycle time. In addition, complex schedu...
Dynamic instruction scheduling logic is one of the most critical components of modern superscalar microprocessors, both from the delay and power dissipation standpoints. The delay ...
Joseph J. Sharkey, Dmitry Ponomarev, Kanad Ghose, ...
This paper describes a new on-demand wake-up prediction policy for reducing leakage power. The key insight is that branch prediction can be used to selectively wake up only the nee...