以下是引用zhangli0在2014-09-12 11:16:10的发言 >5楼：帮助中说明的很清楚这个是给编程器用的：
NOP 0 (Instruction NOP with address "0") executes no function and does not affect the status bits. The instruction code contains a bit pattern with 16 zeros. The instruction is of interest only to the programming device (PG) when a program is displayed.
NOP 1 (Instruction NOP with address "1") executes no function and does not affect the status bits. The instruction code contains a bit pattern with 16 ones. The instruction is of interest only to the programming device (PG) when a program is displayed.