A$.$

order to display a single character $\text{'}A\text{'}$ into the sereen we wrote the following code:

MOV AH$,$ XX

MOV $YY,\text{'}\text{'}$A$\text{'}$

NNT $21H$

What is the value of $xx$ and $YY$ to complete the code?

B$.$ The execution of Instructions "label: DEC CX$","$JNZ label", and "MOV" requires $2,16,$ and $4$ clock cycles, respectively. Assuming the microprocessor has $10-MHz$ clock speed, find the time period required for executing the following code: $($show your work$)$

MOV $CL,$ OAH

label:MOV $AL,[77H]$

LOOP label