Assume the operating system for LC$-3$ has had new service routines added to it$.$ Consider the following code fragment that

requests one of those new service routines:

Also consider the following partial trap vector table $($aka jump table$)$:

For each part below, enter the addresses and the machine code as $4-$digit hex values in LC$-3$ format like the following: x$01$F$3$

A$.$ What address is used by the code above to access the trap vector table?

B$.$ What is the starting address of the service routine called by the code above?

C$.$ If the symbol table shows LOOP is address $x320F,$ what is the return address from the service routine?

D$.$ What is the machine code for the instruction the service routine uses to return to the code above?