Address expanding system

Abstract

Abstract PURPOSE:To attain the expansion of an address space and optional setting of a segment start point address by providing a register storing a shift quantity and using a designated shift quantity to shift the value of a segment register. CONSTITUTION:A shifter 10 shifts the content of a segment register 2 based on the shift quantity stored in a shift quantity setting register 9, gives the result to an adder 11, where the shifted segment start point address and the count of a program counter 3 are added and sent to an address bus 103. A processor sets the shift quantity to shift the shift register 2 and the program counter 3 is added and in generating the physical address, the program is accessed.

Inventors

• 👤 Naoyuki Nishimura
• 👤 尚幸 西村
• 👤 Tomohito Shibata
• 👤 智史 柴田

Bibliographic Details