| 摘要 |
PURPOSE:To improve the preformance of an imaginary calculator by accessing a main storage device directly with the address added with the top address of a main storage area corresponding to the discrimination code set at every imaginary calculator and the address added with the actual address of the imaginary calculator CONSTITUTION:The control programs for imaginary caluclators set the top address of a main storage device MEM 6 assured for imaginary calculators in an address storage part ADR 2 corresponding to imaginary calculator discrimination codes and set the imaginary calculator discrimination codes in a discrimination code register 1. When an ADR 2 is accessed by the contents of the register 1, the main storage device address corresponding to said discrimination codes is read out and is inputted to an adder 4. The main storage device address added 4 with the actual address of the imaginary calculator sent through an address 3 is set in an address register AR 5. Data is read and written from and into the area of the imaginary calculator now under processing by accessing the MEM 6 by the contents of the AR 5. |
