MOV DS. AX MOV AX. STACK MOV SS.AX MOV SP TOP MOV BX OFFSET ASC MOV AL HEX MOV AH.AL MOV CL. 4 SHR AL CL CALL NEAR PTR CONVERT ;主程序结束MOV DS, AX MOV AX, STACK MOV SS, AX MOV SP, TOP MOV BX, OFFSET ASC MOV AL, HEX MOV AH, AL MOV CL, 4 SHR AL, CL CALL NEAR PTR CONVERT … HLT ; 主程序结束