INSTRUCTION CONTROLLER

PROBLEM TO BE SOLVED: To perform processing operation with common software constitution even in an environment of different hardware constitution by selecting an operation indication task corresponding to the kind of a process part and supplying a process part that an information processor is equipped with. SOLUTION: Software 10 in an interface package(PKG) selects an operation indication task corresponding to the constitution of an LSI(hardware) that an intra-office PKG20 or subscriber PKG30 is equipped with out of an LSI function task block 11 by a task generation part 12, and the selected operation indication task makes each LSI ready to operate. Consequently, the software 10 in the PKG can send the operation indication task corresponding to hardware constitution even when the intra-office PKG20 has different hardware constitution from the subscriber PKG30. Namely, individual dedicated software need not be generated for the intra-office PKG20 and subscriber PK330, which can be placed in operation by the software 10.