HARDWARE · CONCEPT PRACTICE

Bit masks

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2025 Spring · Subject A · Q1

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For an eight-bit integer, keep the most significant four bits in their original positions and make all other bits zero. Choose the appropriate bitwise operation.

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Source: 2025S_FE-A_Questions.pdf, PDF page 4. ID: 2025S-A-Q001. Explanation written for this textbook.