60s researcher

There is a special bathhouse in the family area of ​​the research institute, but this is the internal bathhouse of the institute, and only the staff and their families can use it. It costs a dime per person. After seeing them packed up, Lu went to the bathhouse , bathing here is much more troublesome than in the south.

Maybe it's because the time is relatively late, there are not many people in the bathhouse at this point, they all finished washing soon, and then went home to rest, tomorrow is a brand new day, Lu sees that they are going to start their official work, and Xu Yan's daughter-in-law is also going to school, so naturally Jian Duoduo and Xue Yang will also go to school.

The next morning, Lu Jian and Jian Mingyuan went to the laboratory. They are going to start a new project today, and there are many problems to be solved.

Early controllers generally use combinational logic controllers. This control method has a series of shortcomings. The design is very troublesome and the structure is very complicated, especially once the design is completed, it cannot be modified and expanded.The microcontroller is different, it has a series of advantages of regularity, flexibility, and maintainability, which is why Lu Jian is going to adopt this method.

However, microprogramming technology uses software to design hardware technology, and it is necessary to write microinstructions in the form of code.

Sitting in Lu Jian's office, Lu Jian explained his design in detail to three people, which he rushed out last night.

"The microprogram is to imitate the method of the usual problem-solving program, and then compile the operation control signals into "micro instructions", and then store them in the read-only memory..."

"These micro-instructions are made by decoding micro-instructions. The general steps are to convert each step..."

"The approximate way these instructions are compiled is..."

After hearing Lu Jian's explanation of the compilation method, the three of them couldn't help but frowned. You must know that they didn't do much research on programming. You must know that they were engaged in mechanical research at the beginning. It took a lot of time to learn other knowledge, and when sitting on the CNC device, Lu Jian also taught them a lot of knowledge about electronic technology, so they really dare not come to this computer research institute.

Zhao Lei also found it difficult. He didn't understand some parts, so he said directly: "See you, Lu, it seems a bit difficult for you to say it? Are you sure how many of us can learn it?"

Lu Jian glanced at a few people, thinking about their learning ability, but still nodded firmly, "Trust me, there must be no problem. In the past two days, you should follow me to explain these software programs to learn, and work overtime at night. It will definitely be fine. .”

The programming he is doing now is relatively simple, and it is not so difficult to learn.

Jian Mingyuan looked at the information given by Lu Jian, frowned, pointed to a line written on the information, and asked Lu Jian: "Lu Jian, this control memory is the core component in the microcontroller, right? The one you plan to use Is it a ROM?"

Lu Jian nodded, "Yes, to be precise, it is a read-only memory ROM device, that is, a control memory."

"It is a solid-state semiconductor memory that can only read pre-stored data, including address decoders, readout lines, sense amplifiers, etc. It is mainly used to store and store data. This time we Embedded systems used..."

Xu Yan: "Does that mean we have to make this first?"

The Lu family shook their heads, "There is no rush, write out this part of the program first, and then deal with it later."

"Know that ROM can only be read and cannot be modified at any time, so there is only one chance to write, but this is also to prevent data loss, so we must pay special attention when writing, and be careful not to make mistakes."

He urged very seriously, Jian Mingyuan and the others nodded quickly, convinced by Lu Jian's words.

Then Lu Jian led them to start learning the programming language. After all, this is a big project, and there is no way to rely on Lu Jian alone. We still need everyone to help each other. You must know that there is still an operating system that needs to be solved later. Maybe Jian Mingyuan and the others will be able to help at that time.

After three days of hard work, Jian Mingyuan and the three of them finally learned a rough programming language before they were about to shave all the hair on their heads. It took one day longer than Lu Jian expected, which is the current programming language. It's still relatively small, otherwise Zhao Lei felt that his head would explode.

Of course, the main researcher of this research is still Lu Jian. The three of them helped to compile some simple instructions with relatively small differences, and handed over the relatively complicated ones to Lu Jian.

Afterwards, their life in the capital entered a gentle stage. Although there was constant wind and rain outside, the inside of their research institute was still calm and unaffected. The higher-ups really attached great importance to the Institute of Computer Science. Lu Jian saw the materials and funds they applied for. It came down quickly.

After another 20 days, Lu saw that they had compiled all the microprograms and were working on a read-only memory. Lu saw that the design had already been produced, so he handed it over to Jian Mingyuan and the others for operation. Operating system problems.

This afternoon, Lu Jian was continuing to write the program of the operating system in the office. Suddenly, someone knocked on Lu Jian's office. Lu Jian called to come in, and someone pushed the door open.It was Comrade Ji Shuangcheng who came in. He looked a little anxious, "Gong Lu, the Chinese Academy of Sciences sent researchers over, and Professor Gu asked you to go to the laboratory."

Lu Jian was pleasantly surprised, "Okay, I'll be there right away." Professor Gu said before that the program researchers at the Chinese Academy of Sciences would come back in a month, but unexpectedly they came ten days earlier.

He quickly packed up the documents on the table, took them in his hands and hurried out. The person who came over should be in charge of the operating procedures.

After Ji Shuangcheng left the room, Lu Jian went to the conference room. Professor Gu was already inside, and a middle-aged man was sitting opposite him, and the two were chatting lively.

"Lu Gong, you're here, hurry up and sit down." Seeing Lu Jian, Professor Gu quickly waved to him and pointed to the seat beside him.

Lu Jian responded and sat beside him.

"Lu Gong, this is a program research expert sent by the Chinese Academy of Sciences, Comrade Yao Xuelin Yao."

"Comrade Yao, this is Comrade Lu Jianlu, a researcher of our research institute." Professor Gu introduced the two of them with a smile.

"Hello, Comrade Lu!"

"Comrade Yao, hello!"

The two stood up and shook hands politely. When Comrade Yao let go of his hand, he gave Lu Jian a meaningful look, as if he still had something to say.

Lu Jian still had some doubts in his heart. Didn't Professor Gu say that the Chinese Academy of Sciences would send some people over? Why did he come alone?

Seeing that everyone was here, Yao Xuelin didn't say those polite words anymore, and said directly to Professor Gu: "Professor Gu, you also know that our Chinese Academy of Sciences has a heavy task now, and we have to help the large computer project team from time to time. Your side It may not be possible to send so many people to help for the time being." He looked a little embarrassed, but he still told the matter.

"Then what should we do here? Large-scale computer project research is very important, but we can't just give up this small computer project, right?" Professor Wen Yangu was a little flustered.

Lu Jian was also a little nervous, why did such a big change happen all of a sudden.

Yao Xuelin smiled, "Of course we can't give up. That's what we think about here. If you tell us the requirements for the program in detail, we'll still finish it at the Chinese Academy of Sciences. It's probably not possible to come over to work."

He has a tough attitude and there seems to be no room for negotiation.

Professor Gu glanced at Lu Jian in embarrassment, "But this..."

Yao Xuelin came here suddenly today, without notifying them in advance, and Professor Shang happened to be away, so it was difficult for him to make a decision at this moment.

Yao Xuelin: "Professor Shang, there is nothing we can do. The large-scale computer project suddenly asked us to make the program in advance. The time is very tight, and many people are staring at it. This is the only way to go. But don't worry, we will definitely It will be done quickly.”

Yao Xuelin also knew that their approach was not very good, but there was no way around it. After all, large-scale computer projects were valued by many ministries and commissions. the one who was sacrificed.Originally, the higher-ups planned to directly reject this task, but Professor He from the higher-ups felt that it was not very authentic to do so, so he helped to fight for it, and the result was just like this.

"Comrade Yao, can't you fight for me again?" Professor Gu still didn't want to give up.

Yao Xuelin looked upright, and shook his head very seriously, "Professor Gu, this is already the result that our Professor He has striven for."

Lu Jian remained silent the entire time. The news was so sudden that he didn't know what to say.

As soon as the words came out, Professor Gu also fell silent. Professor Shang was not there, and he didn't even have anyone to discuss with. It was really embarrassing.

Suddenly he glanced at Lu Jian, and said to Yao Xuelin, "Comrade Yao, sit here for a while and drink some water. I have other things here for the time being."

Yao Xuelin nodded indifferently, knowing that they were going to discuss it, he just said: "Okay, but please hurry up, Professor Gu, there is still something to do at the Chinese Academy of Sciences, and I will go back later."

"Okay, okay." Professor Gu nodded quickly, and when he stood up, he kicked Lu Jian's foot, and Lu Jian quickly followed him to stand up, walked out of the conference room together, and closed the door of the conference room Well, Professor Gu took Lu Jian to his own office.

Both of them didn't bother to sit down, so they closed the door and stood at the door talking.

Professor Gu looked at Lu Jian, "Lu Gong, what do you think we should do?"