| 摘要 |
PROBLEM TO BE SOLVED: To provide a program execution method which makes program analysis difficult by simple structure, and to provide its program creation method, an information processor which executes it and its program. SOLUTION: A program 100a has a protection part starting identifier 13, a protection part termination identifier 14, a protection part retrieval routine call code 11 and a protection action releasing routine call code 12 other than optional codes 101, 103 and a protection object code 102. The protection part starting identifier 13 and the protection part termination identifier 14 indicate a position of the protection object code 102 on a memory. A protection part retrieval routine called by the protection part retrieval routine call code 11 specifies a position of the protection object code 102. A protection action release routine called by a protection action release routine call code 12 releases a protection action applied to the protection object code. COPYRIGHT: (C)2005,JPO&NCIPI |
