How to swap a 16bit Value with x86 Assembler?

Question

Hi I want to swap a 16 bit value. In in an other question someone suggested the following solution. But this only works with immidiate values,

mov  eax, 0AABBCCDDh
xchg  ah, al
ror   eax, 16
xchg  ah, al.

But this only works with immidiate values. Is there a solution, where I can swap a 16 bit value which is in a register?

Edit: With swap I mean 0xAFBA -> 0xBAFA

Answer 1

With swap I mean 0xAFBA -> 0xBAFA

mov   ax, 0xAFBA
xchg  al, ah
ror   al, 4

AX now holds 0xBAFA