MOV AL,A ;AL=41HMOV DX,C ;DX=1234HXCHG DL,A ;DL=41HMOV BX,OFFSET B ;BX=0002HMOV CX,3[BX] ;CX='UP'=5550HLEA BX,D ;BX=000EHLES DI,E ;ES=1200HLDS SI,E ;SI=459AH
