Convert text into hexadecimal format. Torrent The Wombats Proudly Present This Modern Glitch. Computers store text as numbers, and with hex you display the numbers not as a decimal number, but in base 16. Hex or base 16 or hexadecimal is a numeral system that uses 16 symbols. The symbols include 0-9 and a-f (sometimes A-F). An example of a hexadecimal number is 3BF2. Computer science applications can use hexadecimal for binary coding in computing and digital electronics.

The primary use of hex is a more people friendly way to represent the value. While computers work with binary data, it can be difficult for humans to work with a large number of digits. Humans typically use a base 10 system, while for computer applications it is easier to work with hexadecimal than decimal. As hex saves space (either paper space or screen space), you can more efficiently use hex instead of a large number of ones and zeros. You can also go from hex back to binary bits if needed.

For example A is 1010. Hex numbers represent large numbers compactly and are used in programming as computers use bytes as a unit of information. In hex you need two digits where you need 8 binary digits to represent a byte.

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Hexadecimal is also used in the Red-Green-Blue color system in computers. Red, green, and blue are each represented by a byte that is two hex digits. An RGB color uses six hex digits.

Hexadecimal is also commonly used to represent computer memory addresses.

Contents • • • • • • • • • • • Format [ ] Intel HEX consists of lines of text that are separated by or characters or both. Each text line contains characters that multiple binary numbers. The binary numbers may represent data,, or other values, depending on their position in the line and the type and length of the line. Each text line is called a record. Record structure [ ] A (line of text) consists of six (parts) that appear in order from left to right: • Start code, one character, an ASCII colon ':'.

• Byte count, two hex digits, indicating the number of bytes (hex digit pairs) in the data field. The maximum byte count is 255 (0xFF). 16 (0x10) and 32 (0x20) are commonly used byte counts. • Address, four hex digits, representing the 16-bit beginning memory address offset of the data.

The physical address of the data is computed by adding this offset to a previously established base address, thus allowing memory addressing beyond the 64 kilobyte limit of 16-bit addresses. The base address, which defaults to zero, can be changed by various types of records. Base addresses and address offsets are always expressed as values. • Record type (see below), two hex digits, 00 to 05, defining the meaning of the data field. • Data, a sequence of n bytes of data, represented by 2 n hex digits.

Some records omit this field ( n equals zero). The meaning and interpretation of data bytes depends on the application. •, two hex digits, a computed value that can be used to verify the record has no errors.

Color legend [ ] As a visual aid, the fields of Intel HEX records are colored throughout this article as follows: Start code Byte count Address Record type Data Checksum Checksum calculation [ ] A record's checksum byte is the (negative) of the (LSB) of the sum of all decoded byte values in the record preceding the checksum. It is computed by summing the decoded byte values and extracting the LSB of the sum ( i.e., the data checksum), and then calculating the two's complement of the LSB ( e.g., by its bits and adding one). For example, in the case of the record: 03 007A 1E, the sum of the decoded byte values is 03 + 00 + 30 + 00 + 02 + 33 + 7A = E2.

The two's complement of E2 is 1E, which is the checksum byte appearing at the end of the record. The validity of a record can be checked by computing its checksum and verifying that the computed checksum equals the checksum appearing in the record; an error is indicated if the checksums differ. Since the record's checksum byte is the negative of the data checksum, this process can be reduced to summing all decoded byte values — including the record's checksum — and verifying that the LSB of the sum is zero.

Text line terminators [ ] Intel HEX records are separated by one or more ASCII line termination characters so that each record appears alone on a text line. This enhances legibility by visually the records and it also provides padding between records that can be used to improve machine efficiency. Programs that create HEX records typically use line termination characters that conform to the conventions of their. For example, Linux programs use a single LF (, hex value 0A) character to terminate lines, whereas Windows programs use a CR (, hex value 0D) followed by a LF.

Record types [ ] Intel HEX has six standard record types: Hex code Record type Description Example 00 Data Contains data and a 16-bit starting address for the data. The byte count specifies number of data bytes in the record. The example shown to the right has 0B (decimal 11) data bytes ( 61, 64, 64, 72, 65, 73, 73, 20, 67, 61, 70) located at consecutive addresses beginning at address 0010.: 0B 0020676170 A7 01 End Of File Must occur exactly once per file in the last line of the file. The data field is empty (thus byte count is 00) and the address field is typically 0000.: 00 0000 01 FF 02 Extended Segment Address The data field contains a 16-bit segment base address (thus byte count is 02) compatible with 80x86 real mode addressing. The address field (typically 0000) is ignored. The segment address from the most recent 02 record is multiplied by 16 and added to each subsequent data record address to form the physical starting address for the data.

This allows addressing up to one megabyte of address space.: 02 00 EA 03 Start Segment Address For 80x86 processors, specifies the initial content of the CS:IP registers. The address field is 0000, the byte count is 04, the first two bytes are the value, the latter two are the value.: 04 003800 C1 04 Extended Linear Address Allows for 32 bit addressing (up to 4GiB). The address field is ignored (typically 0000) and the byte count is always 02. The two encoded, big endian data bytes specify the upper 16 bits of the 32 bit absolute address for all subsequent type 00 records; these upper address bits apply until the next 04 record.

If no type 04 record precedes a 00 record, the upper 16 address bits default to 0000. The absolute address for a type 00 record is formed by combining the upper 16 address bits of the most recent 04 record with the low 16 address bits of the 00 record.: 02 0000 04 FFFF FC 05 Start Linear Address The address field is 0000 (not used) and the byte count is 04. The four data bytes represent the 32-bit value loaded into the EIP register of the 80386 and higher CPU.: 04 0000CD 2A Named formats [ ] Special names are sometimes used to denote the formats of HEX files that employ specific subsets of record types.