Program counter control method and processor thereof for controlling simultaneous execution of a plurality of instructions including branch instructions using a branch prediction mechanism and a delay instruction for branching

摘要

A program counter control method controls instructions by an out-of-order method using a branch prediction mechanism and controls an architecture having delay instructions for branching. The method includes the steps of simultaneously committing a plurality of instructions including a branch instruction, when a branch prediction is successful and the branch instruction branches, and simultaneously updating a program counter and a next program counter depending on a number of committed instructions.