SUBR: MOVE R$4,$R$3$

LOADS R$5,$R$4$

EXTB R$3,$R$5,$R$4$

ADDSI R$4,1$

LOADS R$5,$R$4$

EXTB R$5,$R$5,$R$4$

$SLR5,8$

OR R$3,$R$5$

JUMPS R$1$

What does the above subroutine do$?$

A$.$ similar to the sequence, but with bytes reversed

MOVE R$1,$R$3$

LOADS R$3,$R$1$

EXTH R$3,$R$3,$R$1$

B$.$ practically the same thing as the sequence

MOVE R$1,$R$3$

LOADS R$3,$R$1$

EXTH R$3,$R$3,$R$1$

C$.$ Return a halfword in R$3$ loaded from the address passed in R$3,$ even if that was an

un$-$aligned address