For each of the following hexadecimal arithmetic problems:

i$.$ convert the hex values to binary and then performing binary arithmetic to determine the $8-$bit result and the carry$-$out

ii$.$ express the result $($without carry$-$out$)$ as a hexadecimal using the common prefix, $0x,$ to represent hexadecimal values

iii. If carry$-$out indicates an unsigned overflow, convert the values and $8-$bit result to decimal $($you can use a calculator for this conversion, but everything else should be done by hand$)$ and explain, using decimal values, why unsigned overflow occurred. Hints: for $8-$bit unsigned values, the valid range is $0$ to $255$ ; for addition, unsigned overflow is indicated by carry$-$out $=1,$ but for subtraction unsigned overflow is indicated by carry$-$out $=0.$

If you do these problems correctly and manually as required, they can take some time. But please note that Problems $1$ & $2$ are specifically designed to help you see directly the critical role of signed and unsigned overflow.

a$.0CE+01D$

p$.1$

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b$.018+07C$

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c$.03A-076$

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d$.086-073$

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