Tools to code/decode in BCD. BCD (binary coded decimal) is a numeration system used in electronics and informatics to code decimal numbers on 4 bits (in binary).

Binary Coded Decimal (BCD) - dCode

Tag(s) : Electronics, Informatics

dCode is free and its tools are a valuable help in games, puzzles and problems to solve every day!

You have a problem, an idea for a project, a specific need and dCode can not (yet) help you? You need custom development? *Contact-me*!

This page is using the new English version of dCode, *please make comments* !

Sponsored ads

Tools to code/decode in BCD. BCD (binary coded decimal) is a numeration system used in electronics and informatics to code decimal numbers on 4 bits (in binary).

BCD encoding replaces directly digits 0, 1, 2, ..., 9 by their binary values 0000, 0001, 0010, 0011, 0100, 0101, 0110, 0111, 1000 and 1001

Example: Coding 123 is replacing 1 by 0001, 2 by 0010 et 3 by 0011, so 123 is coded 0001 0010 0011 in BCD

BCD conversion replaces 4bit groups by the associated decimal digit

Example: 0001 0010 0011 is decoded 1,2,3

The message has a length multiple of 4 and never contains 1111.

Some systems uses 1100 for + and 1101 for -

Example: -5 is then written 1101 0101

It is possible to use 1100,1101 or 1110 for the decimal dot, bu more often the position of the decimal dot is fixed a priori.

Example: For example, id the dot is in 2nd position, 123 will be read 1.23.

BCD is often used in electronics, for storing or displaying numeric values. Conversion is easy, does not need a processor and is similar to peripherals such as 7-segment displays.

Another example is the storing of Dates in a BIOS of a motherboard, still today in BCD.

Unused values are 1010, 1011, 1100, 1101, 1110, 1111

Between 1950 and 1960

dCode retains ownership of the source code of the script Binary Coded Decimal (BCD). Except explicit open source licence (indicated Creative Commons / free), any algorithm, applet, snippet, software (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, translator), or any function (convert, solve, decrypt, encrypt, decipher, cipher, decode, code, translate) written in any informatic langauge (PHP, Java, C#, Python, Javascript, etc.) which dCode owns rights can be transferred after sales quote. So if you need to download the Binary Coded Decimal (BCD) script for offline use, for you, your company or association, see you on contact page !

bcd,binary,coded,decimal,bit,0000,0001,0010,0011,0100,0101,0110,0111,1000,1001

Source : http://www.dcode.fr/binary-coded-decimal

© 2017 dCode — The ultimate 'toolkit' to solve every games / riddles / geocaches. dCode