CODE SEGMENT ASSUME CS:CODEBEG:XOR BL,BLMOV AH, 1 INT 21H MOV BL, AL MOV CX, 8LAST: MOV DL, ‘0’ ROL BL,1 JNC NEXT MOV DL, ‘1’NEXT: MOV AH, 2 INT 21H LOOP LAST MOV AX, 4C00H INT 21HCODE SEGMENT END BEG上述程序中,MOV AH,2 INT 21H这两条指令执行完后,计算机输出( )里存放的内容
举一反三
- 阅读下面程序段: MOV DL,0 MOV CX,8 MOV BL,100AGA: MOV AL,30H SHR BL,1 JNC NEXT MOV AL,31H NEXT: RCL DL,1 MOV AH,0EH INT 10H LOOP AGA执行本程序后DL=_______H;屏幕上显示内容为_______。(注:答案和答案之间用一个空格分开。)
- 写出每条汇编指令执行后相关寄存器的值 mov ax,62627 AX=________________ mov ah,31H AX=________________ mov al,23H AX=________________ add ax,ax AX=________________ mov bx,826CH BX=________________ mov cx,ax CX=________________ mov ax,bx AX=________________ add ax,bx AX=________________ mov al,bh AX=________________ mov ah,bl AX=________________ add ah,ah AX=________________ add al,6 AX=________________ add al,al AX=________________ mov ax,cx AX=________________
- 分析如下程序段执行后,BL的值。 MOV AL , 12H MOV BL,10H MOV CX , 8 AA1: SHL AL , 1 RCR BL , 1 LOOP AA1 则(BL)=
- 执行指令mov al,12h,mov bl,12h,mov dl,02h,cmpxchg bl,dl后,al的值为()
- 若执行MOV AX, 0FFF5HMOV BL,0FDHIDIV BL指令后,AX=______ H。若执行MOV AX, 00FBHMOV BL,0DHDIV BL指令后,AX=______ H。