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DEC: Decrement :- The decrement instruction subtracts 1 from the contents of the particular memory location or register. All the conditions code flags except carry flag are affected depending on the result. Immediate data can't be operand of the instruction. The instance of this instruction are as follows:
Example :
1. DEC AX Register
2. DEC [500OH] Direct
Physical Memory Mapped I/O and Port I/O : CPU controlled I/O comes in 2 ways. Simply the difference is whether we utilize the normal memory addresses for I/O, this is mention
Write an assembly language program to perform a rot13 1 conversion on characters in a text file. The program should read charatcers from the input file, perform the rot13 convers
Write a program that performs the addition, subtraction, multiplications, division of the given operands. Perform BCD operation for addition and subtraction.
move a byte string ,16 bytes long from the offset 0200H to 0300H in the segment 7000H
Memory Address Decoding Binary Decoders - Decoders have 2n-inputs and n outputs, each input combination results in a single output line contain a 1, and all other lines contain
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CMP: Compare: - This instruction compares the source operand, which can be a register or memory location an immediate data with a destination operand that might be a register or a
Problem (a) Prepare the assembly code sequence for each of the four styles (accumulator, memory-memory, stack, load/store) of machine for the code fragment: A = B + C;
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) What is the difference between re-locatable program and re-locatable data?
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