Rhomboid

Opcode          Instruction         Op/   64-Bit   Compat/  Description
                                    En    Mode     Leg Mode

88 /r           MOV r/m8, r8        MR    Valid    Valid    Move r8 to r/m8.
REX + 88 /r     MOV r/m8, r8        MR    Valid    N.E.     Move r8 to r/m8.
89 /r           MOV r/m16, r16      MR    Valid    Valid    Move r16 to r/m16.
89 /r           MOV r/m32, r32      MR    Valid    Valid    Move r32 to r/m32.
REX.W + 89 /r   MOV r/m64, r64      MR    Valid    N.E.     Move r64 to r/m64.
8A /r           MOV r8, r/m8        RM    Valid    Valid    Move r/m8 to r8.
REX + 8A /r     MOV r8, r/m8        RM    Valid    N.E.     Move r/m8 to r8.