Storing area extending system

Abstract

Abstract PURPOSE:To extend the storing area of a program storing part by controlling a data designating part and a program designating part with a control part and varying the storing parts of a data storing part and the program designating part. CONSTITUTION:Extending information by the soft control (input and output instruction) of a control part 1 are added and latched by a data designating part 6 and further, a developed output is connected to the respective surfaces selecting terminal of a data storing part 4. An access to a data area is discriminated from the instruction code of a program and by inserting the input and output instruction to designate the selecting of a surface to the just front of the instruction code, the switching of the surface can be executed. By connecting a status signal to show the operating condition of a control part 1 itself to an external part through a program designating part 5 to the surface selecting terminal of a program storing part 3, at a program area access time, the selecting of the program part 3 can be executed. Thus, the storing area of the program storing part 3 can be extended.

Inventors

• 👤 Yoji Akase

Bibliographic Details