Patent ID: 7213237

Claim:
An intermediate code execution apparatus which executes intermediate code obtained by compiling source code created in a predetermined program language, comprising: a plurality of intermediate code execution sections which execute the intermediate code; a storage section which stores intermediate code and also stores a correspondence relationship between an instruction included in the intermediate code and appropriateness of each said intermediate code execution sections for efficient execution of said instruction; and an intermediate code interpretation section which executes the following processing: a) identification of the instructions included in the intermediate code stored in said storage section; b) determination of an appropriate one from said intermediate code execution sections for efficient execution of the intermediate code based on said identified instructions and said correspondence relationship; and c) recording of a relationship between the intermediate code and said appropriate intermediate code execution section for the intermediate code execution, wherein said correspondence relationship includes a score table of a processing efficiency degree when each instruction is executed by each of said intermediate code execution sections, and b) further includes the following processing: b1) acquisition of a score of the processing efficiency degree when said identified instruction is executed by each of said intermediate code execution sections based on said score table; b2) calculation of a sum of the acquired scores in accordance with each intermediate code execution sections; and b3) determination of an appropriate one from said intermediate code execution sections based on the score summed in accordance with each intermediate code execution sections.