What is a hex dump?

HEX is a computer memory image, it is generally displayed as text either on the screen or on the print. Hexadecimal or Hex is a Base-16 number system used by computers to represent a binary code when people need to read it. Dumping dumps are a common name for writing information in memory to the file, often before software failure. With this in mind, people Hex is usually used by people to work exactly through what the computer did just before the fall.

To understand the hex landfill, it is necessary to understand a little how alternative numeric systems work. Number systems are marked as base [value]. The value in the numerical system determines how many numbers of numbers are in the system. For example, most people usually use Base-10, which has ten numbers, zero over nine. Although it can be difficult to understand numbers that are different than Base-10, it's very easy for computers. Different Base counting systems allow faster progression and better storage methods noStandard Base-10 system.

Most computer code works in binary, 1s and 0s series, which are on and off in the magnetic memory of the computer. As the Base-2 system, the binary number of very large numbers, which represent relatively small Base-10 numbers. As an example, the "1001" in the binary binary equal to nine in Base-10. When computers store binary data, they do it in two four -digit blocks, called bytes, each of which is one number. The block that sounds "0100 1101" would be "4 13" in base 10.

Hexadecimal is a numeric Base-16 system that contains zero values ​​of up to 15. Since the largest number that can be written in four binary digits is "1111" or "15" in BASE-10, the four-seater binary number is easier and shorter noting in hex. Writing values ​​in hexagonal shortening of each byte from eight digits to two digits.

Typical HEX value may lookAt Little, it differs from the Base-10 digit. While values ​​for zero over nine remain the same, 10 to 15 gain one representative value. These values ​​are represented by A-F. In Base-10 it would be a basic mathematical problem: 4+11 = 15. In hex the same problem would look like this: 4+b = e.

Hex dumps use all these conversions and numbers to pay the text representation of what was written in the computer memory at the time of the dump. A typical hex listing has a line along a row of numbers in tight and consistent columns, all written in hex. The first column is a line memory address and consists of seven digits. According to the memory address, the values ​​of this space converted to hex are from binary. Usually they are groups of two values, which represents one byte or four values, which represents two. The last column is a control sum of the address, the value used to verify the accuracy of the information and usually is six digits.