Invention Grant
US08533441B2 Method for managing branch instructions and a device having branch instruction management capabilities 有权
用于管理分支指令的方法和具有分支指令管理能力的设备

Method for managing branch instructions and a device having branch instruction management capabilities
Abstract:
A method for managing branch instructions, the method includes: providing, to pipeline stages of a processor, multiple variable length groups of instructions; wherein each pipeline stage executes a group of instruction during a single execution cycle; receiving, at a certain execution cycle, multiple instruction fetch requests from multiple pipeline stages, each pipeline stage that generates an instruction fetch request stores a variable length group of instructions that comprises a branch instruction; sending to the fetch unit an instruction fetch command that is responsive to a first in order branch instruction in the pipeline stages; wherein if the first in order fetch command is a conditional fetch command then the instruction fetch command comprises a resolved target address; wherein the sending of the instruction fetch command is restricted to a single instruction fetch command per a single execution cycle.
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