The instruction, Add #45,R1 does _______
a) Adds the value of 45 to the address of R1 and stores 45 in that address
b) Adds 45 to the value of R1 and stores it in R1
c) Finds the memory location 45 and adds that content to that of R1
d) None of the mentioned
Answer: b
Explanation: The instruction is using immediate addressing mode hence the value is stored in the location 45 is added.
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