To compute a memory address, a 16-bit offset is added to the contents of a 32-bit base register. But the alu, which performs the calculation, requires only 32-bit inputs, so the offset must be ___________.  a) Sign extended b) Padded with leading 1’s c) Padded with leading o’s d) Multiplied

Computer Networking: A Top-Down Approach (7th Edition)
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Author:James Kurose, Keith Ross
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Chapter1: Computer Networks And The Internet
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1)  To compute a memory address, a 16-bit offset is added to the contents of a 32-bit
base register. But the alu, which performs the calculation, requires only 32-bit inputs,
so the offset must be ___________. 

a) Sign extended
b) Padded with leading 1’s
c) Padded with leading o’s
d) Multiplied

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