USING REGISTER RENAMING SYSTEMS TO FORWARD INTERMEDIATE RESULTS BETWEEN CONSTITUENT INSTRUCTIONS AND EXPANDED INSTRUCTION Russian patent published in 2011 - IPC G06F9/30 G06F15/16 

FIELD: information technology.

SUBSTANCE: method of executing an expanded instruction in a system with a rename table, a free list, and a constituent instruction rename table comprising converting the expanded instruction into a plurality of separately executable constituent instructions including a first constituent instruction and a second constituent instruction; assigning a physical register number associated with a physical register to the first constituent instruction by mapping an identifier of the first constituent instruction to the physical register number in the constituent instruction rename table, wherein the first constituent instruction generates an intermediate result; and associating the assigned physical register number with the second constituent instruction receiving the intermediate result.

EFFECT: reliable forwarding of intermediate results between constituent instructions and an expanded instruction.

19 cl, 3 dwg