Information Processing Apparatus

An information processing apparatus comprising:

• a memory to store therein a subroutine management table which manages kinds of existing codes out of a native code executable by a processor, a first code which is a source of the native code and does not depend on an operating system and a second code produced in process of converting the first code into the native code for a plurality of subroutine contained in a content;
• a virtual machine having an interpreter function to execute the first code by an interpreter method and a JIT (Just-In-Time) compile function to convert the second code into the native code to be executed;
• a precompile circuit to produce the second code from the first code;
• and
• subroutine management means to perform execution control so that as a result of referring to the subroutine management table for the subroutine called up during execution of the content, when there is the native code, the native code is executed by the processor and when there is the second code, the second code is executed by the JIT compile function of the virtual machine and the produced native code is stored in the memory or when there is the first code, the first code is executed by the interpreter function of the virtual machine and is converted into the second code by the precompile circuit to store the second code in the memory, the subroutine management means performing recording control so that when the kind of code referred to when the subroutine is executed by the execution control is changed, the changed kind is recorded in the subroutine management table.