In this paper,we propose the cluster-based power management mechanism,which uses register cluster as the power management granularity.

Definition of retargetable information, code annotation, SIMD instructions supporting, clustered register allocation, instr.

CPU register and overlapping register window tech;

A Successive Approximation Analog-to-Digital Converter Based on a New Register Architecture;

Design of register file of DSP based on VLIW architecture;

Specifically,the cluster-oriented compiler makes the register numbers in loops as continuous as possible to offer more opportunities for run-time power management,and the cluster-based run-time power manager employs a register cluster buffer to filter accesses to the register file for dynamic power saving.

A multi-ported register file is often required by the superscalar microprocessor to handle multiple simultaneous loads and stores, which cause large increase in area and power consumption.

The interface theory of the VXI register-based device is introduced in this paper,for short, the address-refinding method by address-modifying code is also presented ,in which the finding-address method and the auto-adapting switch of the data transfer-method are achieved .