例51 mov ecx 16 moy bx, ax next shr ax 1 rcr edx 1 shr bx, 1 rcr edx 1 loop next moy eax, edxmov ecx,16 mov bx,ax next: shr ax,1 rcr edx,1 shr bx,1 rcr edx,1 loop next mov eax,edx 例5.1