Bac branch address calculator . static branch prediction is performed here to handle the btb miss case Bac分支地址计算单元。执行静态分支预定过程，处理btb丢失的情况。
2.
Btb branch target buffer . this block is responsible for dynamic branch prediction based on the history of past branch decisions paths 分支目标缓存器。此块基于过去分支决策路径的历史，负责动态分支预定过程。
