ARM Instruction Set

How does two's complement representation facilitate both positive and negative integer representation in binary systems?

• By performing arithmetic operations only for positive integers.

• By storing only the absolute values of integers.

• By using a dedicated sign bit to separate positive and negative numbers.

• By inverting all bits of a binary number and adding one to represent negatives.

What role does the carry flag play during arithmetic operations?

• It is used to store temporary data during calculations.

• It controls the speed of the processor during arithmetic operations.

• It helps detect overflow conditions during arithmetic operations.

• It indicates the result of a multiplication operation.

What is the maximum positive value that can be represented in an 8-bit two's complement system?

• 256

• -128

• 127

• 64

In a binary addition, what happens if the carry flag is set?

• The result exceeds the maximum representable value.

• The carry flag is ignored.

• The result is always positive.

• The operation is completed without issues.

What is the effect of adding two maximum positive values in a two's complement system?

• It results in a non-integer value.

• It results in an overflow.

• It results in a positive number.

• It results in a larger positive number.

What is the primary advantage of using two's complement over sign-magnitude representation?

• It simplifies arithmetic operations.

• It requires more bits.

• It can only represent positive numbers.

• It allows for easier conversion to binary.

What is the binary representation of -5 in an 8-bit two's complement system?

• 00001011

• 11111000

• 11110101

• 11111011

Which of the following statements about the carry flag is correct?

• It can be ignored in all arithmetic operations.

• It is only relevant for multiplication operations.

• It plays a role in detecting overflow conditions.

• It is set only for negative results.

What is the two's complement of the binary number 00001101?

• 11110001

• 00001110

• 11110100

• 11110011

In a binary subtraction operation, what does a clear carry flag (=0) indicate?

• The operation was performed with an invalid input.

• The result is an even number.

• The result is positive.

• The operation resulted in a zero value.