| 摘要 |
PROBLEM TO BE SOLVED: To provide an interpreter capable of realizing acceleration equivalent to that of JIT compiler with a simpler mechanism without scarifying the starting time of a program. SOLUTION: An execution control part 11 obtains, from a dispatch table 16, the entry address of a virtual instruction processing part 14 for processing a virtual instruction 21 indicated by a program counter 15 allows the address to jump, and notifies an execution history obtaining part 12 of which virtual instruction is the target for execution control. On the other hand, the execution history obtaining part 12 makes a pair of the virtual instruction and the previously communicated virtual instruction, and monitors the execution frequency by counting the number of times of appearance by using an execution history obtaining table 17, and notifies a virtual instruction connecting part 13 of the connection of the pair whose execution frequency is high as one virtual instruction. Then, the virtual instruction connecting part 13 executes the reconstitution of a virtual instruction series in order to connect the communicated pair as one virtual instruction.
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