地址总线被处理器用来选择在特定外设中的存储器地址或寄存器。
The address bus is used by the processor to select aspecific memory location or register within a particular peripheral.
dar(数据地址寄存器)包含处理器尝试访问的地址，这一行为将引发页面错误。
The dar (Data address Register) contains the address that the processor tried to access, which then caused a page fault.
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.
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