Solution

The correct answer is Option 1: D, A, B, C

Key Points

• Arithmetic pipelines are designed for performing floating-point operations, such as addition and subtraction, in a sequential manner.
• The sequence of suboperations ensures that floating-point numbers are processed correctly based on their components (mantissas and exponents).

Detailed Solution

• Step 1: Compare the exponents (D): The first step is to compare the exponents of the two floating-point numbers to determine alignment.
• Step 2: Align the mantissas (A): After comparing the exponents, the mantissas are aligned by shifting one of the numbers to match the exponent of the other.
• Step 3: Add or subtract the mantissas (B): Once the mantissas are aligned, they are either added or subtracted, depending on the operation being performed.
• Step 4: Normalize the result (C): The result is normalized to ensure it follows the standard floating-point representation.

Hence, the correct sequence is: Option 1: D, A, B, C