program counter

• 程序计数器

program counter的用法和样例：

例句

1. The program counter holds the address of the instruction being executed.
   这个程序计数器正在执行的指令的地址。
2. This program memory addressing logic is handled by a register referred to as a program counter.
   程序存储器的导址逻辑是由寄存器来实现的，这个寄存器叫程序计数器。