One hundred and twenty-three
The Buddha has a saying, a flower is a world, a tree is a Bodhi. There are 3,000 worlds, and 100,000 methods can enter the Tao. Sumeru mustard seeds, what a great magical power.
Modern technology has gradually approached this goal, and it is not difficult to absorb 50,000 transistors in an area of 12 square millimeters, and in time, it is possible to shrink the pattern like a detailed city map to the size of a fingernail.
Approaching the end of the year, the southern country is still like a spring breeze, as if I don't know what snow is. Although he is a northerner, his long-term body is not majestic, on the contrary, he is a little thin, but when the sea breeze blows, he is a little fluttering.
"Stand firm, be careful of being blown into the sea!" Dr. Yu kindly reminded that although this kid is also 20 years old, he still seems to be malnourished and has not grown.
He smiled for a long time: "I have roots under my feet, how can I blow so much!" Although his mouth was hard, his feet were still a little far away from the side of the ship.
"What do you think?" Dr. Yu asked, "and I feel so emotional when I get on the boat." ”
"I'm wondering where to go back to Hong Kong for dinner, Uncle Yu, you owe me a meal. Long laughed.
Dr. Yu: "You won't be less, I lost my heart, but I didn't expect you to do it." ”
The original long-term 32-bit microprocessor was finally successfully developed, but because its own production line was not completed, it had to go abroad to tape out. Dr. Yu found some connections with Siemens and asked Hans to do this first business, and more than 50 pieces of finished products with masks cost 200,000 US dollars.
In line with the principle of excellence and success, the design scheme has been changed again and again for a long time, and strive to minimize design errors. Since there are not too many integrated transistors, it is more than enough to tape out even with a 4-micron process, and the first-time yield rate is an astonishing 85%.
Hearing that the tape-out was successful, he couldn't sit still for a long time, so he directly pulled Dr. Yu to pick up the goods, and then returned to Hong Kong with the sea reincarnation.
According to Siemens engineers, this processor is the most fantastic he's ever seen, and it's well worth looking forward to. As soon as the conclusion came out, even the senior management of Siemens was shocked, expressing great interest in this processor, hoping to cooperate with Yunyun, and entrusted Hans, president of the Asia-Pacific region, to take full responsibility for this matter.
Therefore, as soon as they returned to the laboratory in Hong Kong, Dr. Chang and Yu saw the Germans who had been waiting there for a long time.
"I knew you were going to run here as soon as you got back. As usual, Hans gave Dr. Yu a bear hug, and he also gave Chang a bear hug as well.
What kind of person Hans is, the strength of this hug is very good, for a long time like a small tree that has been destroyed by a hurricane, and he suddenly staggered, and he was not sensitive.
After greeting for a while, he was a little impatient for a long time: "Let's go straight to the topic, let's open our baby first, how about it." ”
Dr. Yu also said: "Our children can't wait, I'm also a little looking forward to it, Hans, what do you see?"
Hans said, "Very well, I'm sorry, I don't know if I can be invited?"
I don't care for a long time, anyway, the chip is done, and there is nothing unpleasant about the test: "We are honored to invite the president of Siemens to participate." ”
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A 32-bit processor is not the same as an 8-bit processor, and the cost of packaging alone is much more expensive. What Chang took out was a rectangular plastic chip with several digits printed on it, only the number without any text.
The test instruments in the long-term laboratory are readily available, and the auxiliary control chips are all designed and produced by Siemens.
In fact, this is just to verify the performance of the actual mass production chip, and they have long used high-speed computers to simulate the operating state of the microprocessor at the time of design, and its performance parameters are well understood.
After a long order, more than a dozen researchers immediately gathered in the large laboratory and began to work.
The stoppers were busy, setting up the test points one by one, and preparing quickly and orderly according to the procedural steps. Chang Chang and Dr. Yu and Hans watched from the sidelines, each with their own thoughts.
After a long time, an assistant came to report that everything was ready, whether to start testing.
Nodding in agreement for a long time, he nervously lit a cigarette. The stoppers put on their gloves, picked out a chip, inserted it into the test card, and then plugged the test card into the motherboard and turned on the power supply.
It's just that the screen didn't respond, and the long sweat came down immediately, and he immediately went into battle and did it himself. After checking for a while, I changed a test card, and then turned on the power.
Fortunately, this time to save face, the characters on the screen beat in real motion and began to self-test, and everyone was relieved. The detection card is proposed for a long time, because the large-scale integrated circuit process is complex, there are too many integrated things, and it is difficult to test it manually, so when designing the microprocessor, the detection redundant circuit is designed on the layout for a long time, and the specially manufactured detection sub-card can be used to detect whether a microprocessor is intact very quickly.
In about 8 seconds, the screen showed that the detection was completed, and there was no problem, and everyone cheered.
I also sweated for a long time and started the next step - a simple BIOS system was launched, and then booted by the godson operating system.
It seems that everything is going well, I pressed the start button for a long time, only to see the screen flash, about ten seconds after the system self-test, a prompt appeared on the screen: "login:".
After a long stunned moment, this became another command, and the result was reflected on the screen almost instantaneously, quickly and incoherently.
At this time, even if you don't talk about it for a long time, you know that the first step of the test was successful, and the new processor successfully ran the operating system, that is, it was qualified.
The oppressive tension in the room was swept away, and the researchers hugged and cheered each other. For a long time, he sat in front of the screen in a daze, and his brain was short-circuited for a while.
Dr. Yu took out the long-cherished XO, opened it and poured a glass for each person to celebrate the success. Hans, on the other hand, was out of sight, and danced more happily than anyone else, and it seemed that this processor also had his credit.
The rest of the matter is much simpler, start testing the rest of the software, step by step, it's basically the same old thing.
After relieving his heart for a long time, he and Dr. Yu sat aside to rest, watching the machine run the program, and the feeling in his heart was very strange. It stands to reason that the success of tape-out should celebrate joy, but after a long time, I feel happy all of a sudden, and my heart is immediately occupied by fatigue, and I want to sleep well.
The software test was very boring, and the four hours passed slowly, and they tried to keep their eyelids from falling off, and they didn't even care about what Dr. Yu and Hans said.
"Mr. Cao, Dr. Yu, the test is over, and the report is here. "It's even better than expected, the reference frequency of operation is easily 5 MHz, and it is expected that it can be increased to 10 to 20 MHz after the process is improved." ”
Hearing that the test report was coming, the three of them perked up, snuffed out their cigarette butts and got up to look.
The report is very simple, basically some performance data, and the algorithm about performance has been its own for a long time. He wrote a program based on the spec standard to run on the vax11/780 of DEC, the most popular minicomputer at present, and used the running results as a reference.
It is clearly written on the printer paper that the benchmark integer performance actually exceeds that of the VAX11/780 minicomputer, and although the floating-point performance is lagging behind, the difference is not far behind.
vax11/780 is the leader of DEC company, which is exported to all countries in the world, and is a well-deserved king of small computers. It's amazing that a long-lasting microprocessor system can match or even exceed its performance.
At that time, the idea was that a microcomputer would always be a toy, and that it would take a small computer to do something, so the commercial sector could not afford a mainframe and could only use a minicomputer.
The long-term chip has broken this myth, and the 32-bit excellent performance can finally truly compete with the small computer.
Hans is also a knowledgeable person, and he knows the details when he glances at the paper, and his mood at the moment can only be described as shock. He has also been exposed to a lot of microprocessor products, such as Intel's, Motorola's, and Zilog's, but he has never seen anything that can compete with small computers.
"You really only have 50,000 transistors?" Hans stammered, he couldn't believe that such a powerful 32-bit processor could be so small, you must know that the 16-bit processor 68000 of the same level uses 70,000 transistors, and the 286 is huge with 130,000 transistors.
"Of course it's only 50,000, and our philosophy is to keep it down. Long replied proudly.
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Go home today and go to bed early.