Binary to Excess-3 code conversion
The excess-3 code plays an important role in representing the decimal numbers. The Excess-3 code can also be represented as the XS-3 code. In Excess-3 code, each digit of the decimal number is represented by adding 3 in each decimal digit. There are the following steps to convert the binary number into Excess-3 code:
We can also add 0011 in each 4-bit BCD code of the decimal number for getting excess-3 code.
Let's take an example to understand the process of converting a binary number into Excess-3 code.
Example 1: Convert (11110)2 to Excess-3 using binary
1. First, convert the given binary number into a decimal number.
Binary Number: (11110)2
Finding Decimal Equivalent of the number:
Decimal number of the Binary number (11110)2 is (30)10
2. Now, we add 3 in each digit of the decimal number.
The decimal number is 30. Now, we will add 3 into the decimal number 30.
3. Now, we find the binary code of each digit of the decimal number 63.
We write the binary code of each decimal digit in order to get Excess-3 code as:
(11110)2 = (01100011)Excess-3
Below is the table that contains the excess-3 code of the decimal and BCD.
In the above table, the most significant bit of the decimal number is represented by the bit B3, and the least significant bits are represented by B2, B1, and B0.
Excess-3 to Binary Conversion
The process of converting Excess-3 code into binary is opposite to the process of converting Binary code into Excess-3. There are the following steps to convert the Excess-3 code into binary:
Example 1: (01100011)Excess-3
1) Making groups of four bits and write their equivalent decimal number.
(01100011)Excess-3 = (0110 0011)Excess-3
From the Excess-3 table:
(0110)Excess-3 = (3)10
(0011)Excess-3 = (0)10
So, the decimal number of excess-3 code 01100011 is: (30)10
2) Find the binary number.
Now, find the binary number of the decimal number (30)10 using a decimal to binary conversion as:
Divide the number 30 and its successive quotients with base 2.
So, the binary number of excess-3 code 01100011 is: (11110)2