Identify both the mask and the logical operation needed to accomplish each of th

Question

Identify both the mask and the logical operation
needed to accomplish each of the following
objectives:
a. Put 1s in the upper4 bits of an 8-bit pattern
without disturbing the other bits.
b. Complement the most significant bit of an
8-bit pattern without changing the other bits.
c. Complement a pattern of 8 bits.
d. Put a 0 in the least significant bit of an 8-bit
pattern without disturbing the other bits.
e. Put 1s in all but the most significant bit of
an 8-bit pattern without disturbing the
most significant bit.

Explanation / Answer

b. Complement the most significant bit of an 8-bit pattern without changing the other bits

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