一种装置,用以在一被采用的分支指令(branch instruction)执 行时,将该被采用分支指令的一目标地址写入一分支目标地址高速缓存 (BTAC),其特征在于,该BTAC具有数个储存组件,用于快取数...
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... branch circuit 分支电路 branch order 转移指令,分支指令 branching (1)分支(2)分支放射 ...
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分支指令延时间隙 Branch delay slot
无条件微程序分支指令 unconditional branch microprogram instruction
依计数分支指令 branch on count instruction
分支指令最佳化 optimization of branch instruction
分支群指令 Branch Group Instruction
The research on branch prediction includes the use of history information, branch instruction address mapping and state transition.
分支预测算法的研究包括分支历史信息的处理,分支指令地址的映射,状态转换等。
参考来源 - X微处理器分支预测机制设计及模糊加权的分支预测研究·2,447,543篇论文数据,部分数据来源于NoteExpress
分支提示至少是分支指令之前的4个指令取出组,否则就没有效果。
At minimum, the branch hint must be four instruction fetch groups before the branch instruction, or it will have no effect.
例如,如果一个条件标上了“likely”,那么编译器可以把代码的True部分直接放在分支指令后面(这样就不需要执行分支指令)。
For example, if the conditional is marked "likely" then the compiler can place the True portion of the code immediately following the branch (which will not be taken).
hbr hint_trigger, $register —— 告诉处理器相对地址 hint_trigger 处的分支指令可能会跳转到寄存器 $register 所指定的地址。
hbr hint_trigger, $register -- This tells the processor that the branch instruction at the relative address hint_trigger is likely to branch to the address specified in register $register.
OK. Now. Having added this in, I have branching instructions.
好,现在我们已经讲了这些内容,讲过了分支指令。
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