That opcode 1000 is an ADD instruction.

该操作码 1000 是一条 ADD 指令。

But now we have an " ADD" instruction.

但是现在我们有一个“ADD”指令。

Right now, computers add delivery instructions by converting zip codes into a barcode that is printed on a shipment.

现在，计算机通过将邮政编码转换为印在货物上的条形码来添加交货说明。

For this ADD instruction, the Control Unit enables Register B and feeds its value into the first input of the ALU.

对于此 ADD 指令，控制单元启用寄存器 B 并将其值提供给 ALU 的第一个输入。