Super-brain hacker

Chapter 380 Instruction Set

Feng Anbang is the eldest son of the Lin family. At present, he has inherited his father's mantle and entered the relevant departments.

However, at the beginning, he had the biggest opinion on Lin Hong's family, but now it's still the same. Lin Hong didn't want to see his face at all, so he didn't follow him into the ward and continued to stay outside.

After Feng Anbang's son Feng Tianyu went in, he also came out soon.

He is slightly older than Lin Hong. At present, he has graduated from college and began to rely on the resources of his family. Like his father, he has been in politics.

"When did you arrive in the north j?" Feng Tianyu took the initiative to say.

Lin Hong looked at him and said, "Yesterday."

This Feng Tianyu looks much more stable than before.

Lin Hong treats others. If others are friendly, he is good to each other, and vice versa.

This is a mutual process. Treat others as you want them to treat you.

"I heard that you have set up a company recently? That's good. I'm the boss."

Lin Hong said indifferently, "It's sloppy. It's just a matter of living."

"So many years have passed in a flash. You disappeared in the United States for a period of time, but I am very interested in what happened during your time. Can you reveal one or two?"

"Sorry, I don't want to mention the past." Lin Hong directly refused his request.

There is nothing to say between him and Feng Tianyu. The two have only met once before. Although it is nominally a cousin relationship, this relationship seems to be not even comparable to strangers. If he remembers correctly, he punched the other party back then.

Hearing Lin Hong's words, Feng Tianyu smiled and didn't mind.

He continued: "Actually, I think that the things they were entangled with in the previous generation are nothing at all. After so many years, it doesn't make any sense to hold it again.

Feng Tianyu has been taking a look at these things for a long time. In those years, he was young and ignorant. Under the influence of his parents, he did not have a good attitude towards Lin Hong's family. He always looked down on them with a high-level attitude.

However, over the years, this ridiculous concept has gradually changed after his work. In the unit, he often meets such people. He always inexplicably has a sense of self-superiority, and he is extremely immature in the world.

Once, in private, he heard his immediate superior say that this was a manifestation of ideological immaturity. If a person in a system wants to achieve something, he must correct this childish behavior. Everything must be done must be measured by gains and losses, and things that are detrimental to others must not be done. He dares not use such a person whose eyes and nostrils are facing the sky. Not only can he not do good things, but he may also smash things.

Since then, Feng Tianyu has been reflecting on this behavior.

Before, he didn't feel that after really examining it, he found that it was indeed an extremely childish and ridiculous behavior.

despise others and humiliate others with this attitude. In addition to satisfying some perverted psychology, you can't actually get any practical benefits, but will set up opponents and cause trouble for yourself. As the boss said, this is typical of harming others to oneself.

This is a very serious bad habit that many people have and can't notice it at all. Only by jumping out and looking down from a high altitude can we see this clearly.

Since he figured this out, Feng Tianyu began to consciously change his problem. The benefits of this transformation are obvious. His efficiency in the unit has been greatly improved, and his relationship with others has become more and more harmonious, and he has gradually been appreciated and reused by his boss. Although he has a prominent family background, others also have it. Competition is ubiquitous. If he wants to climb up smoothly, the head boss still plays a great role.

Now, he looks back and sees that many of his father's behaviors are very childish and ridiculous. He has also made tactful suggestions to his father many times. Unfortunately, his father can't listen at all.

He now understands why his grandparents were so opposed to his father's politics.

Feng Yuanzheng and his wife had three children, and their two sons did not want them to be in politics at the beginning. The most optimistic is their youngest daughter Feng Wan, who thinks she is the most suitable for politics. Therefore, they placed high hopes on Feng Wan, but it was also this little daughter that made them most disappointed, especially Feng Yuanzheng's wife, who was so angry that she went straight to the hospital. Originally, her health was not good, and it was even worse. Later, she failed to recover.

The second son, Feng Anguo, obeyed his parents' arrangement and entered the scientific research department.

And the eldest son Feng Anbang did not agree to do business. Under his strong insistence, he finally entered the political arena.

After working for a period of time, Feng Tianyu understood the reason why his grandparents did not allow his father to go to politics. His personality and temper were not suitable for this environment at all. This is why he has been idle at the deputy department level for so many years and basically did not move his position.

It can be seen that Feng Tianyu wants to have a good relationship with Lin Hong, or he doesn't want to make such a mess with Lin Hong, so he said so much.

Lin Hong didn't know what his routine was for the time being, and he just answered some questions perfunctorily.

About ten minutes later, Feng Wan and Lin Changming came out of it. Judging from their expressions, it seemed that they were not very happy.

Although Feng Yuanzheng's physical condition was not as bad as expected, since he came over, Feng Wan did not go back for the time being, but decided to stay and take care of his father first. He was usually alone in the hospital and was taken care of by a nurse, and he was quite lonely. As the only daughter, she naturally has the obligation to serve one or two.

Because it was still early, after Lin Hong sent his parents to the courtyard, he called Wu Dong and then returned to Shuimu University again.

When Lin Hong came to dormitory 604, he found that Wu Dong was not the only one in the dormitory, but also a tall and fat young man.

"Big boss, let me introduce him to you. His name is Tang Huaxin, and he is the brother of the School of Automation."

When Wu Dong saw Lin Hong arrive, he immediately introduced to Lin Hong: "It feels a little difficult for me to do this virtual machine project alone, and you are not around, so I posted a post on the Shuimu Forum and found a few interested students to study together."

For Wu Dong, the virtual machine project is indeed very large, and it has never been done before. The efficiency of groping alone is too low, so I tried to find someone to study together. In this way, we can discuss any problems together, so that we can learn from each other's strengths and improve efficiency.

He posted a recruitment post on the computer section of Shuimu bbs, saying that he had launched a virtual machine project in order to learn the underlying principles of computers, looking forward to people with common interests and goals to join.

In the post, he described in detail the main content of the project and the progress of the project so far.

In Shuimu, there are still a lot of awesome people.

After his post was published, it attracted the attention and discussion of many people. Some people said that it was too difficult and a little unrealistic, while others said that it was really good to use this method to learn the principle of computer composition.

Of course, in addition to those who boast, more people come directly to Room 604 to actually understand the situation.

Although Wu Dong also came into contact with this project for the first time, Lin Hong had already planned the basic steps for him. As long as he followed this process, he was basically right. So when he told others about this project, he was naturally the leader, attracting many people to join, and finally set up a virtual machine project to develop a small Group.

Of course, there are many people who are interested, but the technical level of more people is not even comparable to that of Wu Dong. Only a few senior brothers are more reliable, and Tang Huaxin is one of them.

Tang Huaxin is tall and fat, and looks thick and honest.

"Hello." Tang Huaxin said hello first.

"Hello."

Lin Hong nodded, then walked to them, looked at the monitor, and asked, "How are you doing? How far has it been developed?

Wu Dong said with some embarrassment: "The progress is a little slow. I have just begun to implement the instruction set. At present, common instructions such as add and move have been implemented."

The instruction set he refers to the language that can be understood by the CPU. Each instruction set corresponds to one or more assembly languages. After compilation, it corresponds to the machine operation code that the CPU can understand. Since they simulate Intel's x86 architecture instruction set reminder, its implementation mechanism can be found in Intel's technical documentation.

They use a program to simulate the CPU, so this program must be compatible with these instruction sets, such as entering the instruction add to the program. It must be able to understand that this allows it to add two operands, which are divided into different types such as memory and registers.

The implementation details are accurate to bits. The person who writes the virtual machine must be clear to each bit of it. For example, add itself corresponds to multiple different binary codes.

If you can understand these, you have basically understood the underlying operating principle of the computer very deeply, which is why people think that by participating in this project, you can learn the principle of computer composition well.

Even after hearing this project, some teachers in the computer college are considering whether to use this as a case to design the course so that everyone can apply what they have learned. They will not talk on paper and learn relevant knowledge, and forget it in a blink of an eye.

Fortunately, 8086 is 16-bit, the number of instruction sets is relatively small, and the implementation mechanism is not so complicated. After all the way, the virtual machine project team formed by Wu Dong has been moving forward smoothly according to the process set by Lin Hong before.

However, the way used by Lin Hong is highly optimized. For example, the conditional judgment mechanism can be realized by Wu Dong. It may take at least three or four statements to judge separately, while Lin Hong can do it with one statement. And this simple sentence, Wu Dong and others seem to have to think about it for a long time to figure out the mechanism.