Shulou(Shulou.com)06/03 Report--

Today, I will talk to you about whether the two parts of the instruction are the operation code and the control code. Many people may not know much about it. In order to make you understand better, the editor has summarized the following contents for you. I hope you can gain something according to this article.

Instructions are not composed of opcodes and control codes, but by opcodes and operands; opcodes determine the operation to be completed, and operands refer to the data participating in the operation and the address of the unit in which they are located; in the computer, both the operation requirements and the Operand address are represented by binary numbers.

Instructions are not composed of opcodes and control codes, but of opcodes and operands.

Instructions are the instructions and commands that direct the work of the machine, the program is a series of instructions arranged in a certain order, and the process of executing the program is the working process of the computer.

The controller directs the machine to work by instructions, and people use instructions to express their intentions and hand them over to the controller for execution. The total number of different instructions that a computer can execute is called a computer's instruction system. the first computer has its own specific instruction system, and its instruction content and format are different.

Usually an instruction includes two aspects: the opcode and the Operand, the opcode determines the operation to be completed, and the Operand refers to the data participating in the operation and the address of the unit in which it is located.

In a computer, operation requirements and Operand addresses are represented by binary numbers, called opcodes and address codes, respectively, and the whole instruction is stored in memory in the form of binary coding.

The type and how much of the instructions are related to the specific model, which will not be detailed here, please refer to the specific machine data manual.

The sequential execution of instructions will complete the execution of the program, so it is necessary to understand the execution process of instructions. The first is to fetch instructions and analyze instructions. According to the order specified by the program, the currently executed instructions are taken from the internal memory and sent to the instruction register of the controller to analyze the instructions, that is, to determine what the computer should do according to the operation code in the instructions.

The second is to execute instructions. According to the result of instruction analysis, the controller sends out a series of control potentials needed to complete the operation in order to direct the relevant parts of the computer to complete the operation and to prepare for the next instruction.

After reading the above, do you have any further understanding that the two parts of the instruction are the operation code and the control code? If you want to know more knowledge or related content, please follow the industry information channel, thank you for your support.

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