b$.(5$ points$)$ Set bits $7,6,5,$ and $4$ to $1.$ All other bits remain unchanged.

Logical Operator:

Logical Mask: c$.(5$ points$)$ Clear bits $1$ and $0$ to $0.$ All other bits remain unchanged.

Logical Operator:

Logical Mask: d$.(5$ points$)$ Set bits $3,2,1,$ and $0$ to $1.$ All other bits remain unchanged.

Logical Operator:

Logical Mask:For an $8-$bit operand, specify the $8-$bit mask and the logical operator to perform the following operations. Bit

positions are numbered $7-0,$ left to right.

a$.(5$ points$)$ Complement all bits.

Logical Operator:

Logical Mask: