Chapter 260 The temptation to go home

After Zheng Liangshu left with the people from Beijing Steel Plant, Gao Zhendong called Liugong of Beijing University of Technology and informed him that the research and development of steel was officially on the agenda.

Mr. Liu was very happy to hear the news. Director Gao acted very quickly.

Gao Zhendong made a big fuss about these three types of steel. The main reason was that firearms steel has an advantage. Basically, once one type is developed, it can be used for a long time without replacement, which is equivalent to giving the good steel to the soldiers in advance.

At this point, the matter of firearms steel is basically complete. This type of steel may not even be sent back to the rolling mill. Although ESR is needed, the Beijing Steel Plant has also received ESR conversion training at the Third Rolling Mill and has directly ordered a number of ESR furnaces at the Third Rolling Mill.

Yes, now the Third Steel Rolling Mill not only rolls plates and produces some special steels such as thermocouples and 591, but also produces ESR equipment, which is simply the hot commodity of the Seventeenth Ministry of Machine Building.

Although the equipment production capacity is a bit tight, the Beijing Iron and Steel Plant still enjoys preferential treatment here. There is a lot of communication between the cadres of the two factories. From factory leaders to middle-level managers and even grassroots, there are many comrades who have worked in both factories.

Gao Zhendong himself turned back to continue debugging his single board computer.

The registers have been debugged. The advantage of registers is that they basically have the same structure. Once one is done, the others will be almost done. After all, although the integrated circuit process is very slow these days, the consistency is still good. As long as the unit circuits of the registers are basically the same, it will be fine.

Moreover, there is something slightly special about the registers of 8008. Unlike most CPU registers later which were implemented with latches, each bit unit of its registers was implemented using DRAM, with three transistors. This was probably because Blue Factory was good at DRAM at that time.

The transistor memory developed by Gao Zhendong is based on the earliest commercial DRAM chip, C1103. In other words, the basic unit of the register of this thing is the same as the basic unit of the transistor memory developed by Gao Zhendong, which greatly facilitates his debugging of the register.

What he is working on now is the implementation part of the instruction set, which is formally called instruction logic decoding.

The implementation of CPU instruction set usually has two ways: hard link and microcode, or a combination of the two.

They determine what operation the CPU will perform after receiving each instruction. It can be regarded as decoding the logical operations required by the machine code instructions. That is, according to the input machine code instructions, control signals are output to other CPU circuits to realize the specific function of a certain instruction.

In C8008, the instruction set is implemented through hard connections fixed in the programmable logic array.

The DJS-8008, which was derived from the C59, and the simplified single-board computer based on the DJS-59, undoubtedly use this method. The advantage of hard connection is good performance under the same conditions, but the disadvantage is lack of flexibility.

However, for a first-generation CPU of the size of the C8008, it is a bit too much to ask for flexibility, as it uses hard wiring to implement machine instructions.

What’s interesting is that although this set of things clearly exists in the CPU, many elementary textbooks related to the CPU or CPU architecture descriptions and user manuals may not necessarily show the existence of this set of things, or it may be mentioned in passing without much discussion.

Because it is different from the registers, buses and other things in the CPU, it is transparent to most users, and even the low-level users do not need to care about it at all.

Gao Zhendong did not use programmable logic array to achieve hard connection, and he could not use it because such a thing was not available at the moment. He directly hard-connected it by soldering it, which can be simply understood as connecting it directly with wires. Of course, it is not that simple in reality.

These things are different for each instruction, so they have to be debugged one by one. The entire 8008 instruction set has dozens of instructions. Although I have the foundation of DJS-59, it is still a lot of work.

Because this thing is different from the ALU and registers, the circuit that decodes the instruction of the previous instruction basically does not have much guiding significance for the circuit of the next instruction.

During the debugging process, Gao Zhendong became the "Welding Emperor", and he will probably have to wear this title for a while.

Gao Zhendong, who felt dizzy and dazed by the instruction implementation unit, got off work and rode his bike home.

He happened to meet Xie Jianye at the doorstep of his home, and the two chatted for a while. Xu Damao, who was passing by, saw this and became even more angry. Xie Jianye was still learning film projection with him today, how could he not recognize him?
Gao Zhendong, you stole my wife and helped your friend steal my job. This is too much! I must have it.
Xu Damao couldn't think of what to do with Gao Zhendong at the moment. He didn't have the ability to do so.

However, this idea kept lingering in his mind, and he was stuck in a dead end. In short, he wanted to cause some trouble for Gao Zhendong.

Gao Zhendong didn't know what Xu Damao was thinking. He chatted with Xie Jianye for a few words, said goodbye and went home.

As soon as he entered the house, Lou Xiao'e came up to him, took his bag and put it away, then brought him a cup of hot tea.

This was the first time that Lou Xiao'e properly welcomed Gao Zhendong home from get off work after they got married. The previous time was interrupted by various things, such as the renovation of the south room.

This resulted in Lou Xiao'e never having the opportunity to demonstrate her mother's teachings, which made her very depressed. Today she finally had this opportunity and she was very positive.

The tea has been brewed for a while and the temperature is just right. The light green tea soup in the glass is clear and transparent, with green tea leaves floating in it, emitting a slight heat, which is very beautiful.

Gao Zhendong immediately felt the real feeling of "home". It was really good, he thought happily. Lou Xiaoe smiled and said, "Drink a glass of water first, the food will be ready soon."

Before getting married, when Gao Zhendong got home from work, unless he went to Sha Zhu's house for a meal or had already eaten outside, he would have to wait for another 40 to 50 minutes before he could have a hot meal.

While Gao Zhendong was drinking tea and helping Lou Xiaoe set the table, he recalled a TV series he had heard of in his previous life, "The Temptation to Go Home". He had never watched the specific content, but he thought the name was interesting.

After the meal was ready, Lou Xiaoe poured Gao Zhendong a glass of wine, her eyes sparkling: "Zhendong, eat~~~"

Gao Zhendong was a little dazed for a moment, and picked up the cup: "Well, let's eat~~~"

After dinner, Lou Xiao'e cleared the table, and Gao Zhendong went into the south room and continued writing the operating system.

After a while, Lou Xiao'e finished her post-dinner things, took her review book, and went into the south room. She reviewed next to Gao Zhendong and asked him a few questions from time to time.

The faint sound of music lingers between the two of them, and the years are peaceful.
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The next day was Sunday, but Gao Zhendong still got up early, gently covered Lou Xiao'e with the quilt again, and went out to practice boxing and exercise.

After completing a set of punches, Gao Zhendong felt refreshed and energized.

When I turned around, Yan Bugui was standing next to me.

Gao Zhendong had actually seen him a long time ago, and felt a little strange. It was so early, and even if Yan Bugui got up, he would usually be busy preparing breakfast at home. It was strange today.

However, I have already started to fight, so there is no need to stop for him. I guess he doesn't have anything urgent to do, and exercising is more important.

Seeing Gao Zhendong finish his punch, Yan Bugui smiled: "Good morning, Zhendong. You punched well, and it was very powerful."

He doesn't understand Bajiquan, or rather, he doesn't know any kind of boxing, but he can still make a few boasts.

Gao Zhendong gently moved his hands and feet while modestly saying, "Good morning, Teacher Yan. I've been practicing this for many years and I'm still doing OK, haha."

Seeing him walking towards his house while talking, Yan Bugui became anxious. If he came in, wouldn't I have been freezing in vain? The morning in Beijing at the end of March was still quite cold.

He quickly called Gao Zhendong and said, "Zhendong, there is something I want to discuss with you."

I knew you had something wrong, and I thought you could hold it in. Gao Zhendong actually didn't like to talk to him much, not because he was so bad, but because he always calculated everything, and it was sticky and not pleasant to deal with him.

Gao Zhendong stopped and said with a smile, "What's the matter, Teacher Yan, tell me."

"It's about that, the Beijing TV University thing."

Beijing Open University started classes on March 3th, and Ding Yongnian and Qin Huairu got what they wanted. Although both of them applied for preparatory courses, and Qin Huairu even switched to a single course in the end, they were still very excited and talked about it a lot in the courtyard.

At the same time, Yan Jiecheng also went to work in the factory, in the same workshop as Xu Damao, but not in the same team.

Although there are other experienced comrades and skilled workers in the team, it is still not appropriate to have two newcomers in one team. This kind of thing would not be arranged like this, even if you have not taken the "Safety Production Management System" course.

After Yan Jiecheng started working, he gradually understood what the "Open University" that Director Gao had suggested to his father was. In his opinion, it was definitely a university.

He had already graduated from high school, so it was a natural thing for him to go to this open university. He also had a good foundation. Isn't he much better than Qin Huairu, a junior high school student from the countryside?
When he thought that this opportunity was taken by a rural woman who had dropped out of high school, or even graduated from junior high school, he couldn't help but feel heartbroken and beat his chest.

In the past ten or twenty days, he has been complaining about his father at home. Director Gao gave him a chance, but his father was useless.

After hearing this, Yan Bugui felt quite regretful. Why did he become so obsessed with money? When had Director Gao ever cheated anyone?

So he has been looking for an opportunity to see if there is room for this matter to be turned around and whether Boss Yan can be involved.

It's just that Gao Zhendong has been very busy with work and marriage recently, so at least he couldn't catch much trace of Gao Zhendong. He did see him on the wedding day, but even a fool would have known that it was inappropriate to talk to Gao Zhendong about this matter that day.

(End of this chapter)