Program code generation support device and method, program execution device and method, program code compression device and method, program for the same

To obtain a program code generation support device, method, and the like, capable of generating a new program code, in particular, generating in accordance with an incorporating apparatus, by performing a further optimization on a program code. The device includes storage means 6 for storing as data, an optimization rule that is composed of a conversion condition for converting data of a program code and a conversion content thereof, and code optimization means 4 that includes a code analysis unit 4A for analyzing the program code, a condition search unit 4B for search a part matching the conversion condition in the program code through a collation with the optimization rule stored in the storage means on the basis of the analyzed program code, and an optimization unit 4C for generating data of a new program code by converting the part matching the conversion condition on the basis of the conversion content.