EXPANSION OF STACKED REGISTER FILE USING SHADOW REGISTERS Russian patent published in 2010 - IPC G06F9/30 

FIELD: information technology.

SUBSTANCE: method of managing shadow register file system involves the following steps: allocating one or more multi-port registers from a physical register file to a first procedure, corresponding to part of the logic stack of registers, storing data associated with the first procedure in the allocated multi-port registers; selectively saving data associated with the first procedure from one or more multi-port registers to one or more registers of the first file of shadow registers of the shadow register file system, wherein one or more registers has independent data reading/recording ports, and freeing up corresponding allocated multi-port registers for allocating the second procedure; storing data associated with the first procedure from the first shadow register file to the second shadow register file; storing at least part of data associated with the first procedure from a specific register of the second shadow register file in backing memory, and then extraction of said part of data associated with the first procedure from the backing memory to a specific register of the second shadow register file; extracting data from the second shadow register file into one or more registers of the first shadow register file; and before continuing to execute the first procedure, retrieving data associated with the first procedure from one or more registers into one or more multi-port registers, and reallocating the first procedure one or more multi-port registers.

EFFECT: higher efficiency.

15 cl, 5 dwg