| 摘要 |
PURPOSE:To facilitate an easy programming job of a user by using an optional address space of a user program memory as a high-speed processing area and setting and changing freely said address space during execution of the user program. CONSTITUTION:A keyboard 21 contains the instruction code keys corresponding to various instruction codes including an OUT instruction, a TIM instruction, etc., ten-key for feed of program addresses, input/output numbers, etc. and various function keys. An address space for high-speed processing is set with combinations of an FUN key, for example, and the ten-key independently of the loading action of a user program. Then the start and end addresses designated by the setting action of the address space are stored to flag registers BA and BB of a RAM5 in the form of the system service processing. |
