Patent · US Expired

Arithmetic system having pipeline structure arithmetic means

US4639886A · kind A · utility

33Cited by
14References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 29, 1983
Grant dateJan 27, 1987
Priority date
Expiry dateJun 29, 2003

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06F2207/3884
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

An arithmetic system includes an arithmetic unit of a pipeline structure for executing arithmetic operations for instructions which require different arithmetic cycles. The arithmetic unit executes N arithmetics in pipeline for N instruction at maximum. Initiation of arithmetic operation for a new instruction in the arithmetic unit is indicated by an indicator which detects that each of the instruction executed in the arithmetic is N cycles before completion of the execution and allows arithmetic operation for the new instruction to be initiated in the succeeding cycle.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.