Which instruction is an example of a register-to-memory data transfer?
2025
Which instruction is an example of a register-to-memory data transfer?
- A.
ADD R1, R2
- B.
JMP Label
- C.
IN AL, 0x80
- D.
MOV R1, [0x100]
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Correct answer: D
A register-to-memory or memory-to-register data transfer instruction moves data between CPU registers and memory locations.
In:
MOV R1, [0x100]
[0x100] refers to a memory address.
R1 is a CPU register.
The instruction copies data from memory into the register.
Therefore, this instruction represents a data transfer between memory and a register.