$6.<2\mathrm{.}0$ pts$>$ Given a $4-$bit Adder $-$ Flags: C $=$ Carry Flag, N $==$ Sign Flag, Z $=$ Zero Flag, V $=$ Overflow Flag

$6.$a$.(0\mathrm{.}5$ pts$)$ Briefly describe what logic gate is required to clear$/$set the Zero flag on a $4-$bit adder.

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:END$\_$ANSWER: $-------------------------$

$6.$b$.(0\mathrm{.}5$ pts$)$ Briefly describe the logic gate needed to clear$/$set the overflow flag on a $4-$bit adder $($which bits are input to the gate$).$

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:END$\_$ANSWER: $-------------------------$

$6.$c$.(0\mathrm{.}5$ pts$)$ Briefly describe the logic gate needed to clear$/$set the carry flag on a $4-$bit adder. Hint: it is not just the carry out of bit #$3.$

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:END$\_$ANSWER: $-------------------------$

$6.$d$.(0\mathrm{.}5$ pts$)$ Which SUM bit should connect to the sign flag on the $4-$bit adder?

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