| 摘要 |
PURPOSE:To increase the degree of freedom for assigning an area of an array variable when generating a program, by coupling and combining a value of a page register and a value of an address operand, enlarging the bit length, and after that, executing the addition of index qualification. CONSTITUTION:An adding circuit 8 has an operation capacity of (p) and (n) bit length when an output of a page register 2 and an output of a direct address register 4 are made (p) bits and (n) bits, respectively, and adds a data of (p)+(n) bits, which has coupled and combined the output of the page register 2 and the output of the direct address register 4, and an output data of a selector 5. When an external instruction is transferred, an instruction code and an address operand (a) being a direct instructing address are entered in an instruction register 1. In this case, a page is entered in the page register 2, and also in an index register 3, an index value is entered. |
