指令

• These four operations, together with their options, use all 256 instruction codes .
  这四种操作再加上对于它们的各种选择方案，总共需要用掉全部256个指令代码。
• In case a wrong recognition is made, the command can be cancelled by simply pressing the foot switch .
  万一发生识别错误，只要踩下脚踏开关，就可以使指令消除。
• After all logic events have been completed, the control unit initiates the next instruction fetch .
  在所有的逻辑事件完成之后，控制器再次启动下一步指令的读取。
• All instructions are carried out using a register called the accumulator, which we shall denote by a .
  全部指令执行时都用了称作累加器的寄存器（用符号A来表示）。
• We ask that carriers be sent to all the departments to notify them of the decrees that you proclaim here .
  我们要求派人到一切部门去传达你们在这里公布的各项指令。
• The last instruction causes the computer to run on the spot by jumping to the instruction where it is already .
  这最后一条指令利用转移到本指令使计算机在原地踏步。
• During spasms of extreme activity he relied on his assistants to screen his more impetuous commands .
  在工作极端紧张的时候，他依靠他的助理去检查他那比较仓促的指令。
• For example, the command "erase" makes the arrow's image disappear and "display" makes it reappear .
  例如，指令“擦除”会使箭头的图象消失而指令“显示”又会使它重现。
• If we load this known address, as data, into the program counter, we execute a jump instruction .
  如果我们将已知的地址依数据加载到程序计数器中，就可以执行一条转移指令。
• The store may be imagined as having many pigeon-holes each of which can hold one instruction or number .
  存储器可想象为拥有许多小鸽栅，每个小鸽栅可存放一条指令或一个数。