suppose certain registers have ASCII code for a an alphabetical character and give logical instruction to change character in the register to lower case IF its upper case.

$($Mind that result is in hex and justify the answer$)$

$16-18.$ Suppose AL$,$ BL$,$ and CL contain ASCII code for some alphabetical character.

Note that ASCII for $\text{'}$A$\text{'}$ and $\text{'}$B$\text{'}$ are $41h$ and $42h,$ and ASCII for $\text{'}a\text{'}$ and $\text{'}b\text{'}$ are $61h$ and $62h.$

Give a logical instruction to change the character in AL to lower$-$case if it is upper$-$case. $($No change if it is already lower$-$case.$)$

Instruction:

Justify your answer or show work.

If $AL$ had $\text{'}D\text{'},$ after value in $AL$:$,($in hex$)$ Show work.

Give a logical instruction to change the character in BL to upper$-$case if it is lower$-$case. $($No change if it is already upper$-$case.$)$

Instruction:

Justify your answer or show work.

If $BL$ had $\text{'}f\text{'},$ after value in BL: $($in hex$)$ Show work.

Give a logical instruction to change the character in CL to upper$-$case if it is lower$-$case and change it to lower if is upper.

Instruction:

Justify your answer or show work.

If CL had $\text{'}H\text{'},$ after value in $CL$ : $($in hex$)$ Show work.

Give an "and" instruction that replaces a number in DX with the remainder of the number when divided by $32.$

Instruction: $.$

Justify your answer or show work.

If DX had $345$d$,$ after value in DX: $\text{'}$in hex$)$ Show work.

Suppose the register $CH$ contains an unsigned number whose value is between $0$ and $9.$

Note that ASCII for the characters, $\text{'}0\text{'},\text{'}1\text{'}$ and $\text{'}9\text{'}$ are $30h,31h,$ and $39h.$

Write a logical instruction to convert the value in $CH$ to the ASCII for the decimal digit corresponding to the value.

Instruction:

Justify your answer or show work.