How do you convert BCD to Hex in assembly language?
To convert BCD to hexadecimal at first we have to cut the BCD digits. The most significant digit will be multiplied with 0AH (10D), and then least significant digit will be added with the result of multiplication. Thus the BCD will be converted to its equivalent hexadecimal form.
What is BCD in assembly language?
In computing and electronic systems, binary-coded decimal (BCD) is a class of binary encodings of decimal numbers where each digit is represented by a fixed number of bits, usually four or eight. Sometimes, special bit patterns are used for a sign or other indications (e.g. error or overflow).
Which IC is used for one digit BCD to binary code converter?
74184 IC
The 74184 IC will convert 1 1/2 BCD digits to straight binary. (the LSB is the same in BCD and in binary).
What is packing of digits?
Packed-decimal format means that each byte of storage (except for the low order byte) can contain two decimal numbers. The low-order byte contains one digit in the leftmost portion and the sign (positive or negative) in the rightmost portion.
Which instruction is used for BCD operation?
The Intel BCD opcodes are a set of six x86 instructions that operate with binary-coded decimal numbers. The radix used for the representation of numbers in the x86 processors is 2. This is called a binary numeral system….In x87.
| 79 | 78 .. 72 | 71 .. 0 |
|---|---|---|
| Sign | Unused (0) | 18 packed digits |
How to convert a BCD number to binary?
8085 program to convert a BCD number to binary. Load the BCD number in the accumulator. Unpack the 2 digit BCD number into two separate digits. Let the left digit be BCD 1 and the right one BCD 2. Multiply BCD 1 by 10 and add BCD 2 to it.
What are BCD Operations in computer architecture?
In BCD operations, the processor performs ordinary binary computations, then adjusts the result to conform to BCD. For example, if you add the binary number 5 (bit pattern 0101) to binary number 6 (bit pattern 0110), you get the binary result of 11 (bit pattern 1011, or hexadecimal B).
What is an example of BCD arithmetic?
For example, if you add the binary number 5 (bit pattern 0101) to binary number 6 (bit pattern 0110), you get the binary result of 11 (bit pattern 1011, or hexadecimal B). With BCD arithmetic, the processor would adjust the result to make it into a valid BCD result (which in this case would be bit pattern 0001 0001).
Where is the BCD number stored in memory?
A BCD number is stored at location 802BH. Convert the number into its binary equivalent andstore it to the memory location 802CH. In this problem we are taking a BCD number from the memory and converting it to its binaryequivalent.
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