60s researcher

Lu saw that they went to the cafeteria with five people from the office, but Professor Gu was not with them, nor was he in his office, so he didn't know where he went.

After all, they had to work together for a long time. After the two parties had purposeful contacts, a group of them sat around in the cafeteria and chatted slowly after eating. Only when Lu saw them did he know that they were both They were only transferred to the capital last year. They were all from the University of Science and Technology of N Province before, and they were transferred here for the small computer project.They are generally in their 30s, mid-level researchers, and naturally they all have families. Several children are in their teens, and the eldest son is already in high school and will soon graduate.It's a pity that they can't take the college entrance examination now. Once they graduate from high school, they have to go to the countryside. They are also very helpless, but the policy is like this, and they have nothing to do. They can't do special things.

Several other people also have close ties. They also have several children in their family, and they are all old. Now a family can only have one child at home, and they will soon face this problem.

As soon as this topic came out, the atmosphere among the crowd immediately changed, and those few people became a little depressed.Now if you don't want to go to the countryside, you have to have a job, but they don't just give up their job just because they can afford it.They also don't have the ability to help them through the back door, and if they are not careful, accidents will happen.

Everyone lost their enthusiasm for talking, and they ate faster afterwards.Lu Jian knew that the college entrance examination would be resumed in a few years, so he didn't worry too much about it. However, Lu Jian and the others returned to his office after a quick meal. There was a meeting in the afternoon, so he had to sort out his information quickly. .

Lu Jian wrote a lot of content, not only about the CPU, but also other parts.After four o'clock in the afternoon, Professor Gu came to look for him, and they walked to the office outside together.He didn't plan to go to the laboratory outside. This office has enough space, so just talk here.

Lu Jian randomly pulled a chair and sat beside Jian Mingyuan and the others, while Professor Gu stood in the middle of the room. Everyone was holding notebooks and pens, preparing to record the key points of the meeting.

Professor Gu coughed twice, and said to everyone: "Our project is almost four months old. Today's meeting is mainly to look at the progress of the research, and then discuss the future research arrangements."

As he spoke, he clicked on one of them, "Researcher Wei, how is the truth table part of the adder that you and Researcher Ji are in charge of? Tell me about the progress."

Hearing his question, Researcher Wei immediately stood up, held his notebook in his hand, glanced at Professor Gu and said: "We are using a combination circuit that adds two binary numbers and finds the sum, that is, a Bit full adder, but we use a binary four-bit full adder, which is a cascade of four one-bit full adders..."

"We are still calculating the expression of the truth table, and we are currently working on a structured description."

After he finished speaking, Professor Gu asked directly, "How long will it take to make the entire truth table?"

Researcher Wei thought for a while, then discussed in a low voice with Researcher Ji next to him, and then said to Professor Gu: "It is estimated that it will take another two weeks."

Professor Gu didn't hesitate, and said directly to them: "Okay, I'll give you two more weeks, and you have to finish this part on that day."

"Professor Gu, don't worry, we will finish it on time." Researcher Wei looked confident.

Professor Gu nodded and asked him to sit down, and then asked another person, "Researcher Wang, how is the logical expression that the three of you are responsible for?"

Researcher Wang who was called also quickly stood up. He already knew that he would be asked this question, so he said confidently: "It's almost finished, and it's expected to be finished in a week."

Professor Gu nodded, and said to him: "Simplify quickly after completion, and then add the truth table together for calculation." There were relatively few people before them, and the progress was still relatively slow, but they first put the chip The circuit has been redrawn, and there is no problem with the chip.

The previous five people nodded together, obviously they didn't have any opinion on Professor Gu's arrangement, while Lu Jian and Jian Mingyuan were just watching, and they didn't need to intervene in this matter.

After talking about this, Professor Gu looked at Lu Jian, "Lu Gong, there are two parts, the register part and the control part, why don't you choose one?" He believed in Lu Jian's ability and was going to give Seeing the right to choose independently, Lu Jian let him be responsible for a part alone.

Lu Jian thought for a while, and said to Professor Gu, "Let's take charge of the control parts." He already has a rough plan for this part.

Seeing that he didn't hesitate at all, Professor Gu asked suspiciously, "Researcher Lu, do you already have any ideas?"

Lu Jian didn't hide anything, and said directly to him, "I already have a general idea."

Professor Gu was shocked, and asked in disbelief: "So fast? Can you talk about it now?" His surprise is normal, he didn't know that Lu Jian had a general idea before, and he didn't know that Lu Jian started from Coming from the future.You must know that in his opinion, Lu Jian only found out that the project they were going to participate in was a small computer this morning, and he actually had a general idea of ​​what to study in the afternoon. This efficiency is really too fast.

Lu Jian didn't notice his thoughts at all, just said: "Of course."

"There are two structures of the control components, one is the control method with micro-storage as the core, and the other is the control method based on the logic shadow wiring structure. My idea is to use the first one, which is more convenient and Exactly, each microstore holds microcodes, each one corresponding to a basic microoperation...”

Lu Jian spoke carefully and patiently, and everyone present listened carefully, even Professor Gu and Jian Mingyuan were no exceptions. You must know that this is the first time that the research on small computers has been done, and they have no experience before. Starting from scratch, slowly groping, a lot of troubles were caused in the process, and many wrong paths were taken. Lu Jian's words were also a new concept for them.

As soon as Lu Jian finished speaking, Professor Gu hurriedly asked: "Researcher Lu, according to your statement, then we need a lot of microcodes to design."

Lu Jian nodded affirmatively, "That's right, simple instructions require 3 to 5 micro-operations to complete, not to mention responsible instructions, which may require dozens or even hundreds of micro-operations to complete."

Professor Gu hesitated, "Then the workload is quite a lot. It takes a lot of time just to map the microcode to the basic micro-operation, and to compile this instruction. There are only four of you, can you use it?" ?” He really wanted more people, but it’s a pity that there are more than 20 people in the entire small computer research project, and it’s not easy for him to have ten people here, and it’s impossible for Lu to meet them.

Lu Jian smiled and nodded, "Professor Gu, don't worry, as long as you understand the rules, this part is relatively simple, but it will take a lot of time, probably about a month."

Lu Jian has already made up his mind, first spend a day or two to tell Xu Yan and Jian Mingyuan the general rules and methods, and then stare at them for a long time, then he can divide the scope of the task and let them do it by themselves.

Now that Lu Jian said it was ok, Professor Gu didn't worry about it anymore, and said directly to Lu Jian: "Then let's arrange it like this first, and let's discuss together if there are any problems later."

Lu Jian and Jian Mingyuan nodded together.

Professor Gu was also quite satisfied, "Well then, as for the memory part, we will discuss it together after the current task is completed."

Lu Jian immediately agreed. This part is relatively complicated and takes a long time, so we can talk about it later.

Today's meeting is not very long, but it was already five o'clock when it was over. Professor Gu looked at the time and said to Lu Lu, "You just came to the institute today. The house must not be packed yet. Let's go back now, it's almost time to get off work, let's settle down at home first, as for the research on the control part, let's talk about it tomorrow morning."

"Okay." Lu Jian thought for a while and didn't refuse. They really wanted to deal with the accommodation first. Besides, today is the Lantern Festival, Xu Yan still wants to accompany his wife, and Jian Mingyuan wants to go back. If he wants to accompany his daughter at home, as a leader, he has to be aware of the people's situation, and this is also discussed before.

Without much delay, Lu saw a few packed up their things and went to Professor Xia's courtyard. When they passed, it was bustling inside. Professor Xia was playing a small game with his two children, and Xu Yan's daughter-in-law Gao Juan was there The kitchen is busy.After Lu Jian greeted Professor Xia, he dragged Xu Yan into the kitchen, ready to go inside to help Gao Juan. Today was the Lantern Festival, and it was also Lu Jian's first day of employment. They had prepared a lot of good ingredients.

As soon as the two of them entered the kitchen, they felt a rush of heat. The firewood inside the large earthen stove was burning vigorously, and there seemed to be something steaming on it. There were two layers of steamers in the big pot, which were not covered with white ones, and the steam was overflowing, like It's like a fairyland.There was a Ge coal stove beside the big earthen stove, and Gao Juan was cooking. She looked very busy and had to take care of the firewood in the big earthen stove.

Hearing the sound of someone walking in, she immediately raised her head, and seeing Xu Yan showed a beautiful smile, "You guys are back!"