已知( DS ) = 091DH ,( SS ) = IE4AH ,( AX ) = 1234H ,( BX ) = 0024H ,( CX ) = 5678H , ( BP ) = 0024H ,( SI ) = 0012H ,( DI ) = 0032H ,[ 09226] = 00F6H ,[ 09228 ] =1E40H , [91F6H]=1234H , [ lEAF6 ] =091DH ,试求单独执行下列指令后的结果? ( l ) MOV CL , 20H [BX][SI] ; ( 2 ) MOV [BP][DI] , CX ; ( 3 ) LEA BX , 20H [ BX ] [SI] ; MOV AX , 2[BX] ; ( 4 ) LDS SI , [BX][DI] ; MOV [SI ], BX ; ( 5 ) XCHG CX , 32H[BX] ; XCHG 20[BX][SI] , AX ;