METHOD FOR CHECKING DEPENDENCE ON INSTRUCTION AND COMPUTER SYSTEM FOR INSTRUCTION EXECUTION

摘要

PROBLEM TO BE SOLVED: To attain the subject that dependence logic needs to be simplified without making hardware more complicated. SOLUTION: This invention provides technology for setting a selected operand field in pipeline-constituted architecture. A method and a system for efficiently selecting the operand field can be executed by various computer architecture including RISC architecture. This invention provides a method for checking dependence on a computer instruction in the pipeline of a computer system, which includes a decision on whether or not a 1st computer instruction has an operand code 262 operating only a 1st source operand.