Processor for performing context switching, a method for performing context switching, a computer program for perform context switching

摘要

A processor for performing context switching, including: (a) a register unit configured to include a primary register used in program execution by the processor and a secondary register having a same structure as the primary register; (b) a data storage unit configured to be used as a data storage area in the program execution; (c) a transfer unit configured to include a transfer register used in data transfer between the secondary register and the data storage unit; and (d) an arithmetic unit configured to perform the copy between the primary and secondary registers in a cycle and performs the data transfer between the data storage unit and the secondary register in parallel to instruction execution by the processor when the instruction execution by the processor does not involve memory access to the data storage unit.