METHOD AND SYSTEM FOR PROVIDING CONTEXT SWITCH USING MULTIPLE REGISTER FILE

摘要

A method and a system for exchanging context by using a plurality of register files are provided to prevent increase of using a memory bus at once by differently setting a state of each register file, and quickly exchange the context by distributing and performing context restoring/storing task. A memory interface module(204) sets each register file(201-203) to a prefetch, current, or store state, and switches the state of each register file into another one of the prefetch, current, or store state. The memory interface module determines a memory address for reading the context of the next task performed by the register file of the prefetch state The memory interface module enables a CPU to process the task with the context of the register file of the current state. The memory interface module stores the register file of the store state to a memory(208).