Question

55. Which of the following is not a data copy/transfer instruction?

(A) MOV

(B) PUSH

(C) DAS

(D) POP​

Answer 1

Answer:

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Answer 2

(C) DAS

DAS is not the data-transfer instruction.

Explanation:

• MOV instruction is used to move 8-bit data from one register to another.
• In PUSH instruction, stack pointer gets incremented and the value of a particular byte operand gets stored at the internal address.
• POP instruction reads a byte from the address referenced by the SP register.

• DAS stands for Decimal Adjust after Subtraction.
• DAS is an arithmetic command and it is not related to data transfer.