如果之前是否为零的测试的结果为真，那么结果寄存器将是非0(为真，所有位均被置1)。
The result register will be non-zero (or, true, all bits set to one) if the previous test for zero was true.
大多数指令都遵循类似的格式，结果存储在第一个操作数内指定的寄存器中。
Most instructions follow a similar format, with the register that holds the result specified in the first operand.
索引寄存器会与某个指定的地址相加，结果用作访问内存时使用的地址。
The index register is added to the specified address, and the result is used as the address for the memory access.
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