![]() When a file is opened for editing, a Hex Editor Window shows the representation of each byte as a hexadecimal number and as a character (see Introduction to Editing for more information).Īlmost anywhere a number is entered in 010 Editor (in most text fields, the Inspector, etc.), the program supports input in a number of different formats. For example, binary 0101 = '5' hexadecimal, or binary 1111 = 'F' hexadecimal.Ġ10 Editor is designed specifically for editing the individual bytes of a file. Note that when 4 bits are grouped together (base 2), this can also be represented as a single hexadecimal digit (base 16). Every file stored on a disk is stored as a set of bytes. Since a byte has 8 binary digits, it can represent any value from 0 up to 255 inclusive. When 8 bits are grouped together, the result is called a ' byte'. ![]() For example, the number 10110 = 1*2 4 + 0*2 3 + 1*2 2 + 1*2 1 + 0 = 22.Ī digit of a binary number is also called a ' bit'. Binary - Numbers are represented as base 2.Only the digits '0' through '7' are used ('8' or '9' is not allowed). Octal - Numbers are represented as base 8.This system is commonly referred to as Hex. All the decimal digits are used, plus the letters 'A', 'B', 'C', 'D', 'E', and 'F' are used to represent the numbers 10 through 15. Hexadecimal - Numbers are represented as base 16.The digits may be any number from '0' to '9'. Decimal - Numbers are represented as base 10.The following is a list of the 4 number systems used: In general, if the n digits of a number A are numbered where A 0 is the right-most digit, A 1 is the digit to the left and so on, then the value of a number of base B is calculated:Ī n-1*B n-1 + A n-2*B n-2 +. For example, the digits '246' can be converted to a number using base 10 by 2*10 2 + 4*10 + 6 = 246. Each number system has a different ' base' that is used to convert from a set of digits to a numeric value. When editing raw hex data, 010 Editor uses a variety of different number systems including decimal, hexadecimal, octal, and binary. ![]()
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