| 摘要 |
PURPOSE:To easily check action history by recording the codes for identification of the action history information every time a single unit of said history information is recorded. CONSTITUTION:A position where an action history is shown by a pointer 11 within a memory and the information on the action history is stored in an action history information storing area 12. A CPU 1 extracts an action history storing address out of the pointer 11 to store it into an address register 1a and stores a prescribed separator (discriminatable code) into a data register 1b. Then the contents of the register 1b are stored at the position of the memory shown by the register 1a. At the same time, the length of the separator is added to the contents of the registers 1a to update the action history storing address.
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