The ups and downs of life in the Siheyuan

In the design of Zu Chong 200, Li Yuan directly pushed the main frequency to 600MHz.

The internal bus continues to remain 32 bits wide, and the external bus is expanded to 64 bits wide.

The address line is 32 bits, and the memory addressable space exceeds 4G.

Two levels of buffering are set up internally (each level is divided into data and program buffers), the first level buffer is 16KB, and the second level buffer is 512KB.

Add branch prediction technology and return stack technology.

Floating point operations have been directly increased from 32 bits in the past to 64 bits.

The assembly line has been directly upgraded from the previous 4 levels to 12 levels.

To realize the above design scheme, the number of transistors is initially expected to exceed 400 million.

In order to effectively reduce power consumption, the pin power supply is maintained at 3.3V, and the core voltage is directly reduced to 1.2V.

Zu Chong 200 uses a dual-core design for the first time. One is the core processor and the other is a co-processor, which mainly completes the processing of multimedia data such as images.

The same internal bus matrix structure, dual cores share internal and external data.

On the basis of the original 165 instructions, 65 floating-point special instructions and 45 multimedia instructions have been added.

In contrast, this year Intel launched a new CPU. The main frequency is only 6MHz, and the internal bus is only 16 bits.

Historically, which Intel CPU can rival the Zuchong 200 is probably the first-generation Pentium Series III launched in 1999. Even so, its main frequency is only 500MHz.

Internal resources cannot be compared with Zu Chong 200, just like a small thatched cottage and a large villa.

After completing the Zuchong 200 program design and performance definition, Li Yuan began module division.

A week later, starting from the top level, the division of the bottom-level modules was completed.

Li Yuan entered the results into Nuwa No. 1 and asked her to help analyze whether the interface distribution was reasonable and whether the module functions were optimal.

Due to the large scale, this time we can only start simulation testing from the smallest module and then integrate it step by step.

When it came to the top-level simulation, Li Yuan had to delete the details of the internal modules and abstract only the top-level modules. Otherwise, Nuwa 1 would not be able to rotate at all.

This is the first time Li Yuan has encountered such difficulties since he designed the chip.

In the past, upgrades were done step by step, and each upgrade was within control.

This time, his plan was too big. It was a leap forward. The complexity of the chip had exceeded the processing power of Nuwa 1.

Although he was aware of the problem, his sword was unsheathed and he could only walk to the dark side.

This is just graphic work and has not been converted into logic devices. If you want to get the final chip design, you will probably encounter more difficulties.

Li Yuan spent the next time constantly adjusting the abstract parameters of the top-level module, trying to completely match the performance of the bottom-level module.

This work was Li Yuan's helpless move, and it can also be said to be an innovation.

This is like building a community. The top-level design is the buildings, driveways, underground garages, greening, fitness areas, properties, water and electricity, garbage collection points, commercial facilities, etc. in the community.

A building is one of the top modules, and so on.

In the past, Li Yuan decomposed the top-level modules of each grid, such as the number of floors, the layout of the units on each floor, and the layout of the rooms in each unit.

The room is the lowest module.

He started designing from the floors of the building, and then gradually decomposed it into apartment types, corridors, elevators, corridors, etc., and then decomposed it into each room.

Then it is integrated one by one, and each module is integrated and simulated and tested until the building is completed.

Now, it is found that if all the top-level modules of the community are integrated together, since they all cover the bottom-level modules, Nuwa 1 cannot be calculated at all.

Therefore, Li Yuan abstracted each top-level module and turned it into key parameters, such as building height, floor area, required water and electricity capacity, generated garbage, total number of households, maximum capacity, etc.

Then perform top-level module simulation, and Nuwa 1 can easily conduct comprehensive simulation tests.

Therefore, this simulation was divided into two categories by Li Yuan, one is top-level design simulation, and the other is top-level module simulation alone.

The link between the two is the abstraction of the top-level module.

Time flies so fast and it’s Wednesday, December 12th.

Some Chinese people who paid attention to the Nobel Prize thought that Li Yuan had arrived in Sweden, but Buddha Pineapple, who had already arrived in Sweden, never waited for Li Yuan.

The person leading the team was extremely anxious.

Because Li Yuan's performance this year has been tepid, sometimes he even showed hostility.

This made the official in charge of Li Yuan's affairs in the White House decide to arrest him directly in Sweden.

Then he will be secretly escorted back to America. Not only will he be able to easily obtain the latest technology of Y821, but he will also be left behind to carry out follow-up scientific research for America.

They all agreed that a country bumpkin who had never seen the world would quickly surrender under the temptation of money and beautiful women.

They have done this kind of thing many times and never failed.

Unfortunately, until December 12th, they did not even see Li Yuan.

When they learned that Li Yuan had never left China, everyone was almost angry to death.

The senior management thought there was a mole and informed Li Yuan in advance, making him vigilant.

From this day on, Buddha Pineapple launched an investigation into all the insiders, and must find out the traitor.

Some thoughtful people in China are still surprised that Li Yuan was not mentioned in the media at this time.

When the Nobel Prize was announced and people around the world who paid attention to the Nobel Prize learned that the winner of the Nobel Prize in Physics was Lilienfeld, some people began to laugh at Li Yuan.

Comments have been made: The Chinese boy is just self-promotion and has no idea about the confidentiality principle of the Nobel Prize.

As for domestic media, the media only reported on the Nobel Prize. No newspaper mentioned Li Yuan, let alone COMS circuit.

It's as if this thing doesn't exist at all.

Some Chinese people who have been paying attention to the Nobel Prize were talking privately after learning the news.

There are those who fight for Li Yuan, and there are those who rejoice in his misfortune.

Since the media did not pay attention to this matter, the Nobel Prize matter passed quickly. Now everyone is paying more attention to the vigorous reform and opening up.

America and the others were helpless when facing people like Li Yuan.

The products of the Yuan Universe are not sold abroad, so there are really not many methods he can use.

Putting pressure on the Chinese government, the other party became very good at Tai Chi, and this matter could not be solved.

October 12, Sunday.

In the sunroom of Li Yuan's home, five men were drinking and eating meat around a hot pot.

"Xiao Li, you can even resist the temptation of the Nobel Prize. Your superiors admire your determination."

Mr. Chu picked up a large piece of freshly cut mutton with chopsticks and talked while eating.

"At your age, I am definitely not as good as you."

Leader Xu and Mr. Chu were rushing to pick up the meat, as if the large plates of mutton on the table next to them didn't exist at all.

"It's a pity. If you go, I will give you the Nobel Prize." Representative Tong helped the two elders pour the wine, and then smacked his lips regretfully.