d><strong>Opcode Instruction Op/ 64-Bit Compat/Description En Mode Leg Mode</strong> 0F38F0/<em>r</em> MOVBE <em>r16,</em> m16 RM Valid Valid Reverse byte order in <em>m16 and move to r16.</em> 0F38F0/<em>r</em> MOVBE <em>r32,</em> m32 RM Valid Valid Reverse byte order in <em>m32 and move to r32.</em> REX.W + 0F 38 F0 /<em>r</em> MOVBE <em>r64,</em> m64 RM Valid N.E. Reverse byte order in <em>m64 and move to r64</em>. 0F 38 F1 /<em>r</em> MOVBE <em>m16,</em> r16 MR Valid Valid Reverse byte order in <em>r16 