Instruction Set Architecture Quiz 1

Which of the following best describes an instruction set architecture (ISA)?

• A hardware design used in processors

• A set of instructions a processor can execute

• A type of memory management technique

• A method for I/O processing

What is the purpose of the source operand in a machine instruction?

• Specifies the operation to be performed

• Holds the data on which the operation is performed

• Contains the result of the operation

• Points to the next instruction to execute

Which of the following is a common x86 instruction used for data transfer?

• ADD

• JMP

• MOV

• CMP

What is the role of the instruction’s "next instruction reference"?

• It determines the size of the data being transferred

• It specifies the next instruction to be executed

• It tells the processor where the source data is located

• It performs data manipulation operations

In data transfer operations, what does the POP instruction do?

• Pushes data onto the stack

• Moves data from one register to another

• Copies the stack top to a destination and increments the stack pointer

• Exchanges data between two memory locations

Which addressing mode is typically used when transferring data directly from one memory location to another?

• Immediate addressing

• Direct addressing

• Register addressing

• Stack addressing

A MOV instruction can transfer data between memory and a register.

• True

• False

Data transfer instructions only operate on data stored in memory, not registers.

• True

• False

Briefly explain the difference between the PUSH and POP instructions in data transfer operations.

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Which of the following best describes the function of XCHG?

• Swaps the data between two registers

• Swaps data from memory to floating-point register

• Swaps data from memory to register

• Swaps data from memory to memory