Instruction code conversion apparatus creating an instruction code including a second code converted from a first code

摘要

A processor includes a conversion table storage unit storing therein a table used to convert to a non-compressed instruction code from an index included in a compressed instruction code, and a conversion unit receiving a compressed instruction code to extract an index and a parameter therefrom to convert the extracted index to a non-compressed instruction code to incorporate the parameter into the obtained non-compressed instruction code to recover an instruction code for transmission to an instruction decode unit.