The memory of a computer $($some addresses only$)$ contains the following.

Addresses and contents are in hexadecimal.

$0060006$

$0071006$

$0085006$

$0090000$

LIST OF OPCODES $($OPCODE is in binary$)$

$0000=$ HALT ; halts execution of an instruction cycle

$0001=$ Load AC from memory

$0010=$ Store AC to memory $($where to$?)$

$0101=$ Add to AC from memory

The previous instruction has just completed its execution.

Current values of registers PC and AC as shown.

PC is $0$x$007.$

AC $0$x$0077.$

The microprocessor continues its program execution with the next

intstruction. Answer the following questions.

a$.$ When the microprocessor completes its program execution what are

the contents of register PC $?$ Convert in hexadecimal $($answers in $0$x using the appropriate #bit$/$hex digit$)$

b$.$ When the microprocessor completes its program execution what are

the contents of register AC in hexadecimal? Convert in hexadecimal $($answers in $0$x using the appropriate #bit$/$hex digit$)$

Note. What the expression "using the appropriate #bit$/$hex digit" means make sense if you consider the current values shown of some registers. Be careful