| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a technique which monitors execution of a program with reduced overhead without changing behavior of the program. <P>SOLUTION: An instruction execution device 200 which performs additional processing requiring a memory area with respect to execution of a specific instruction included in a string of instructions to be executed on a computer by a prescribed execution system includes: a memory securing part 205 which secures a memory area for the additional processing with respect to the specific instruction read into a memory; an instruction substitution part 210 which copies the specific instruction to the secured memory area and substitutes the specific instruction with a dedicated instruction for the additional processing and specifying information specifying a location of the memory area; an additional processing execution part 220 which, in response to readout of the dedicated instruction in the string of instructions, acquires the memory area from the specifying information substituted together with the dedicated instruction and uses the memory area to execute the additional processing; and a substituted instruction execution part 225 which refers to the specific instruction copied to the acquired memory area to perform the same processing as processing to be performed by the specific instruction. <P>COPYRIGHT: (C)2012,JPO&INPIT |
