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After carefully flipping through all the information, Liang Yuan sat on the sand and muttered, and after a long time, he said slowly: "Lao Su, what is the difference between the processor you have and this C2 if it is developed?"

Su Liangyu thought for a while and said: "In terms of architecture, the C2 processor is a 16-bit processor than the 7X series processor currently developed by the Science and Technology Park, and the main frequency of the 7X processor will be slightly higher than that of C2, but the RISC technology appeared many years later than the CISC technology, and the RISC technology is much more advanced than the CISC technology from the innate point of view. 4 times, it can be said that the operation degree of C2 is still far from 7X processor. ”

The 6X chips currently produced by the Science Park are equivalent to the 8O86 processors deployed by Intel in the mid-seventies, and the 7X series currently under development is similar to the 8O186 launched in the late seventies.

At the beginning, Liang Yuan was quite curious about Su Liangyu's ability to research 8o186 level chips, in Liang Yuan's memory, the republic's processor ability is called a scum, so the 8o186 processor that opened the door to the personal computer era is very profound in Liang Yuan's eyes.

Su Liangyu was very amused by Liang Yuan's awe-inspiring mentality, and once talked to Liang Yuan that the current ability of domestic research and development of integrated circuits is not bad at all, such as the large-capacity Hanka sold by Lenovo, in which the chip level used to process Chinese characters has reached the level of 8o186 chips.

Lenovo is developing a new generation of Hanka designed with large-scale integrated circuits (Note 1), which is close to the level of 8O286 chips in terms of hardware.

In the process of converting the processor from military to civilian, the first large-scale commercial application happened to be a large-scale application in the field of word processing, Wang An Computer Company seized this opportunity to take advantage of the rise, it can be said that the 8o186 level of chips was not a problem at all for the domestic level at that time.

However, the processors on the market with CISC architecture are still surviving well, and the root cause is that the RISC architecture has several relatively large defects, and generally speaking, the software with the same function. Software running on RISC processors requires software engineers to write much more source code than the same software running on CISC processors. Su Liangyu continued.

"In terms of the way the processor controls the device, the CISC processor can use software to complete the purpose of control, while the RISC processor must use physical wiring. Connect the processor and the various parts of the device. As a result, the interaction between humans and machines with RISC processors has become much more difficult and costly. ”

Su Liangyu said for a long time, looking at Liang Yuan's still confused appearance, and sighed helplessly. Said with a smile: "This kind of purely technical thing doesn't seem to be very interesting to Xiaoyuan, let me give you a practical example." ”

"The Science Park currently uses the 6X series microprocessors of the CISC architecture, and it took us five months and more than 100 people to open the control system of the bladeless electric fan. The successful control of the zhì system was opened. ”

"If we were to switch to a RISC-based processor, we would have to invest at least 300 people and spend a year to get the entire control system out. ”

"For the end user, the RISC processor has unparalleled advantages, for the software engineers who open various programs for the RISC processor, the RISC processor is a disaster, the same function of the software, the human and material resources invested in the RISC architecture are at least three to five times that of the CISC architecture, so Xiaoyuan has a more intuitive understanding. ”

Listen to Su Liangyu talk about practical examples. Liang Yuan suddenly realized that it is no wonder that Intel in later generations dominated the rivers and lakes and beat IBM, Motorola and other companies to the point of losing their armor and falling into the water.

Companies such as IBM and Motorola, where technology is king, have chosen RISC technology, which has a more advanced architecture and superior performance, and is naturally weaker than Intel that uses CISC technology in terms of processor replacement time.

As a result, Intel is a scoundrel with this chip. Seize the weakness of the RISC processor that has been running for a long time and invest in a big one, and drag the RISC camp alive with the chip sea tactics of fast-paced deployment of new chips.

Ignorant computer novices don't know the fact that each generation of RISC processors is three or four times faster than the X86 of the same era, and watch Intel frequently refresh the numbers of the highest frequency of the processor. I will only think that this enterprise is technologically advanced and has a high level.

On the processor competition of personal computers. Intel uses the concept of operating popular fashion to operate the upgrading of the entire processor market, and vividly staged a tragicomedy of bad money driving good money.

"Lao Su, you mean to say that aside from all commercial factors, the C2 processor itself is more advanced than the 7X series processor we are working on, right?" Liang Yuan confirmed the meaning of Su Liangyu's words again.

Su Liangyu nodded and said: "As far as the processor itself is concerned, the ARM architecture using RISC technology is much better than the X86 architecture using CISC technology, but the processor has always been able to realize its function of controlling the software through guò software, and it is meaningless to simply store the hardware, and its huge weakness in the software is enough to offset the technical advantages of the RISC architecture." ”

Liang Yuan gently tapped the handrail of the sand with his fingers, and only after a moment did he continue: "Lao Su, we have a natural disadvantage in the process technology of integrated circuits, and the foreign chip process has popularized the manufacturing technology of 1 micron, for us, the 5 micron production line still needs a lot of effort to master the technology, and the gap in the middle should be 3-4 generations." ”

"When I just looked at the data, the number of core transistors in C2 was only 2oooo, and the number of 7x series transistors we are developing now should be 7oooo."

"Just now Lao Su said that the C2 processor using RISC technology will probably be two to four times faster than the 7X series we are developing, and the C2 processor and the 7X processor have a transistor difference of nearly four times. ”

Su Liangyu nodded with a smile and said, "Although things are not so simple, it is not wrong for Xiao Yuan to say this, but Xiao Yuan must be prepared for the long time of processor replacement and the need for large-scale personnel." ”

Liang Yuan smiled and said: "Although we can find many companies with advanced processes to produce processors for us, it's a pity that I have long had enough of Huajing's virtue, as for the personnel, don't worry, the foundation of the computer department of Dongda has always been good, and there should be no problem for us to co-establish a computer branch with Dongda." ”

"However, the preliminary work that Lao Su did on the 7x series is a bit of a pity. Liang Yuan sighed.

"It can't be said to be a waste, if we don't plan to use the X86 architecture for a long time, we don't need to think about the future development potential, it will be easier to circumvent the patents on the current X86 architecture, and the 7X series can speed up the opening. ”

"We still keep the x86 architecture processor well, its easy-to-open characteristics are very suitable for cross-industry industrial control processors, we can use the x86 architecture as a special series of industrial control processors in the future, do not consider the improvement of performance, only work on stability and ease of use. ”

Liang Yuan's impression also vaguely remembers that Intel's processors below the 486 level have been continuously produced in the new century, and he naturally agrees with Su Liangyu's construction.

After the C2 processor was settled, Liang Yuan did not decide whether to implement the plan of the Shengjing Scientific Instrument Factory to build a refurbished production line, and irresponsibly said to Su Liangyu that he should think about it carefully, Liang Yuan left the science and technology park with the two little girls.

The two little girls have long been drowsy by all kinds of extremely professional terms, Ning Wanjia can be better, although her big eyes are full of confusion, she can still make it look like I am listening carefully, Ning Wanfei is indeed yawning, so she almost lay down in the sand in the office and fell asleep.

The three of them walked out of the gate of the science and technology park, and a Lori let out a long breath and said, "It's finally out, and I'm going to fall asleep when I hear it." ”

Liang Yuan looked at the two loli who were not wearing a headdress and were wearing a straight one, and laughed, and said, "I just came up with a good way to distinguish you." ”

The two little girls stared at each other in surprise and said, "Xiaoyuan, you are lying." ”

"It must have been Fei Fei who had been yawning just now. Liang Yuan said affirmatively.

Lori, who yawned, pursed her lips and said, "What kind of method are you, we can make him fail casually, Xiaoyuan also knows how difficult his sister was just now, you tell me how to compensate for my sister's loss." ”

At this time, Liang Yuan was so far that he could guess the two little girls, and said with a smile: "Fei Fei said it, anyway, I don't have anything else to do today." ”

"Even if I go to drive a bumper car with you for a day, I have no regrets. Liang Yuan made a bitter and hateful expression.

"But Fei Fei, do you want to tie your head first. Liang Yuan asked carelessly.

For a whole morning, Liang Yuan was tortured to death by two little girls who were exactly the same, and it was very rare for others to see twins who looked the same.

For Liang Yuan, who has been messing with the two little girls since he was a child, this is simply a terrible thing, not to mention being pinched at any time, after kicking, seeing two little faces with the same innocent expressions, even normal chatting is extremely difficult.

Lori, who had a disdainful expression just now, turned into a hesitant expression in a blink of an eye, reached out and poked Lori beside her and asked, "Feifei, what do you think of Xiaoyuan's Jianyì?"

"But, Feifei, it's you who Xiaoyuan asked. Lori, who was stabbed, said with a hesitant face.

Liang Yuan looked at the two little girls who had become exactly the same in a blink of an eye, and suddenly felt that he was going crazy.

Note 1: LSI generally refers to the integration of more than 1ooooo transistors.