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# Code bcd pdf **
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It is a form of binary encoding where each digit in a imal number is represented in the form of bits In computing and electronic systems, binary-coded imal (BCD) is a class of binary encodings of imal numbers where each digit is represented by a fixed number of bits, usually four or eight. error or overflow) Binary-Coded imal (BCD) is the encoding of the imal digits (0 through 9) in discrete sets of four bits per digit. When we use a set of four bits, we havepossible bit The code is a type of binary coded imal (BCD) code. The mov AX,H ; dividend in unpacked BCD form mov BL,05H ; divisor in unpacked BCD form aad ; AX:= BH div BL ; AX:= H. •aad converts the unpacked BCD number in AX to binary form so that div can be used Example: Multidigit ASCII addition. Binary-Coded imal (BCD) is the encoding of the imal digits (0 through 9) in discrete sets of four bits per digit. ∗ ∗Adds two digit numbers Binary coded imal means that each imal digit,though 9, is represented by a binary code ofbits. To introduce ASCII and BCD number representations To explain arithmetic operations in ASCII and BCD representations To describe the Pentium instructions that To BCD-encode a imal number using the common encoding, each imal digit is stored in a four-bit nibble. imalBCDThus, the BCD encoding for the number would be Last Updated , Binary Coded imal, or BCD, is another process for converting imal numbers into their binary equivalents. The Binary Coded imal (BCD): When numbers, letters, or words are represented by a special group of symbols, this is called encoding, and the group of symbols is called a mov AX,H ; dividend in unpacked BCD form mov BL,05H ; divisor in unpacked BCD form aad ; AX:= BH div BL ; AX:= H. •aad converts the unpacked BCD number Objectives. Sometimes, special bit patterns are used for a sign or other indications (e.g. When we use a set of four bits, we havepossible bit patterns, and in BCD, we only need to encode ten digits, thus some of the bit patterns are simply designated as invalid.