Chapter 110 What is a professional [Asking for a monthly pass]

In 1983, the Japanese game company Nintendo released a machine called "FA Fan Lymr", referred to as FC, because its appearance color is only red and white, it is generally called "red and white machine" in China, and it is called "NES" in Europe and the United States, because the color of the style released in Europe and the United States is gray, so some people call it ""

The birth of the red and white machine changed the development of Asian games, created the market of the third generation of home game consoles, and had a very far-reaching impact on the whole world

Most of the games cracked by Ah Wei's studio are game cartridges that are compatible with the red and white machine, and of course, he often portes the games from the arcade machine to the game card of the red and white machine

Sun Wu was overjoyed when he heard Gu Wei say that he wanted to perform the game live to crack it

He said: "Today is lucky, I have good eyes, but it is rare to encounter such a scene."

Lin Hong was looking at Gu Wei's workshop at the moment

The workbench is a long conference table filled with all kinds of electronic components

Table lamps, soldering irons, various metal wires, and some module chips, etc., the most strange thing Lin Hong found was that there were many glass bottles on them, which contained colorful liquids

He leaned in to look at the label on the bottle:

Groove cleaner, solder mask washing solution, gold removal water, nickel removal water, etching solution......

From the names on these labels, Lin Hong also probably guessed their function

Seeing this, Lin Hong felt that the other party was really professional, at the beginning of his workbench, there were no such things, he didn't know, there was still such a thing as "nickel water".

In addition to these, there is also a device that Lin Hong is very familiar with on one side of the workbench - the "Apple II" computer

The game board that Gu Wei got today was a bit big, and Lin Hong could see at a glance that this was the board on the arcade, a similar board, he had seen it when he was in the game hall in Tanglin City before, and Xiaopang's uncle had told him about it carefully

"This board is a good thing"

Gu Wei pushed the things on the workbench aside, and then placed the board on it

"This is the arcade game "Saloma Snake" released by Konami in '86, it is a flying shooting game, very playable Saloman Snake has greatly changed the consistent "rigid" style of the space cruiser, the graphics and music have been greatly improved, the design of levels and enemies is also very rich, and it is very distinctive, you can also play in two people at the same time, you can be resurrected immediately after death, and the weapon and ability system has also been greatly simplified...... These features make it a classic in the flying shooter genre."

"Viagra, how are you going to crack it?" Sun Wu asked

"The first thing to do is to port it over and store the game on a cartridge so that it can be played on red-and-white and other compatible machines before you can crack it"

Gu Wei pointed to several chips on the motherboard of the game console and said:

"Do you see these chips? This is where the game data is stored, the memory IC of the model number 2764"

Following his pointing, Lin Hong did see the number "2764" printed on the chips, as well as the brand name "i", and he realized that this number originally referred to the model of the chip, and it was the place where the data was stored He counted it, and there were about a dozen such IC chips

Gu Wei carefully removed one of the pieces of 2764 with an electric soldering iron, and then pasted a number on it, and he used tweezers to hold the chip and explained:

"The 2764 is an 8k*8 byte UV-erase, electrically programmable read-only memory with a single positive 5 volt power supply, 75 mA operating current, 35 mA maintenance current, a total of 28 pins, and a dual in-line package, each of which means ......"

Gu Wei knows these very well, and this chip is a component that he has more contact with, so he opens his mouth to its technical parameters

When he had finished speaking, he asked, "Do you understand?" ”

"I don't understand," Sun Wu shook his head very dryly

Lin Hong nodded: "I almost understand, its principle is actually similar to the memory of the computer, it is much simpler."

Gu Wei's eyes lit up: "You understand computers?" ”

"I have a apple_ii at home, and I've been working on that computer manual these days," Lin Hong said truthfully

"Since you have a foundation in this area, then it's okay Takeshi, if you feel bored, find something to, what I said, without technology, you must not understand it at first"

"Okay"

When Sun Wu heard this, he immediately stopped staying here, and went to the hall to play games, there were TVs, game consoles, and all kinds of game cards, and he couldn't wait for a long time

Then, Gu Wei asked a few more in-depth technical questions, and Lin Hong quickly answered, and the answers were more professional than he expected, so he somewhat understood why Sun Wu said that Lin Hong was more "proficient" in electronic technology

Then, Gu Wei took off all the remaining 2764 chips, and he introduced to Lin Hong that these chips stored various data of the game, such as images, sounds and characters, etc., through the main program, these data can be called and run, and it is these data that constitute the main body of the game

"The next step is to extract the data from these memories, and this process has a term called "extraction, export"

"Because arcade game consoles basically use Z80 as a calculation, we need to simulate the Z80 operating environment, which requires the use of Apple II computers, you have a Mac machine, you should know how to switch to the Z80 environment?"

Lin Hong shook his head: "My machine is 6502, and I have never used Z80"

Gu Wei is not surprised by this, if it is not for the need to do something in the Z80 environment, Apple users generally do not have access to these contents

He explained: "There are eight expansion slots left on the Mac, and we can switch to this mode by inserting a Z80 expansion card on it"

In order to make Lin Hong see it more intuitively, Gu Wei even moved the monitor away from the chassis and opened the lid on the chassis, revealing the motherboard inside

Lin Hong saw that his motherboard was full of expansion cards, and only one of the eight slots remained

"What are these cards for?"

"This is the Z80 analog card,And then this one is to expand the memory,The third one you should know,It's DIII,Apple comes with,The fourth is a plus card,The frequency of Apple II is 1 megahertz,With this card, it can be increased to 3.6 megahertz,Greatly refresh its computing degree ......"

When Lin Hong heard his introduction, his saliva was almost pouring out, this Mac is an artifact, and he expanded it like this, and the performance has been improved by many times

What is a profession? That's it

Then, Gu Wei closed the lid, then moved the monitor back and put it on it, started the machine, and switched to Z80 mode

In Z80 mode, the operating system running the Mac is not Apple's own applos, but the operating system, which was developed by a digital research company in 1974 and designed for 8-bit personal computers such as i8080 and zilogz80

In the 8-bit era, this operating system was very widely used, but unfortunately it failed to compete with Microsoft's OS in the 16-bit era, and eventually gradually disappeared and was forgotten by everyone

While introducing Lin Hong, Gu Wei took out something the size of a shoebox from the toolbox

"This is the EPROM programmer, the official name is IC programmer, the model is ALL-03 If you want to get the data out of 2764, you can't do it without this."

When Gu Wei explained this, Lin Hong just kept nodding his head, and didn't say anything to ask, at first, Gu Wei thought that Lin Hong was more shy and embarrassed to ask, and stopped from time to time to ask if there was anything he didn't understand, but the answer he got was that he already understood

This knowledge is indeed not very difficult for those who know it, but for those who have never been in contact with this aspect, it is as difficult to understand as Tianteng, but since Lin Hong himself understands it, he can't say anything

Gu Wei didn't ask at all later, he just talked about himself, anyway, he promised that he would explain it to him in detail, as for how much he could listen to, it was up to Lin Hong's own

Lin Hong was extremely happy in his heart at the moment, what Gu Wei said was a completely unfamiliar field to him, he liked these things, the more unfamiliar he was, the more he liked it, and he frantically absorbed every knowledge point Gu Wei said

For example, the burner of this eprom is another thing he has not touched, he saw that in the center of the shoebox-sized burner, there is a row of two rows of jacks, and he already knows in his heart that this should be a slot for chips like 2764, and there are many of these slots

"This burner is a good thing, it can easily burn and test various types of ICs, if you want to read and burn data, you can only rely on it, it has a total of 40 pins, can burn 2K to 8M bits of EPROM, and of course, it can also be used for read-only memory"

Gu Wei inserted a 2764 chip into the middle slot, then connected an expansion card with the burner, and finally inserted this expansion card into the expansion slot of the Mac

With these ready, he finally booted up the computer and entered the operating system

Running the program that already existed in it, Gu Wei quickly took out the data in this 2764 chip, forming a file package, he put this file package in a folder, and then began to continue the data of other chips

The next process is a repetitive action, to get out the data in several other pieces of memory, Gu Wei has nothing to say, so Lin Hong picked up the technical manual of the burner and read it carefully, there are not only operation instructions, but also the detailed schematic diagram of this burner, in the gaps, and even some of Gu Wei's usual research experience

Lin Hong was fascinated for a while

Chapter 110 What is professionalism?

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