Op code Format
As we have seen in the section that the first byte of all the instruction is the op code. microprocessors reads this op code and decodes it to identify the operation to be performed.
In this section we will examine how these op code are formed.
The instruction which use registers or register Paris as their operands contain t followings codes somewhere in their op code byte.
formation of op code of some of the instruction are explained below. Readers ae not suppose to remember the op code. They can op codes of few instruction if they remember their op code formats .