MOV AX,0F4A0HMOV AH,31HMOV AL,23HADD AX,AX上述程序段执行后（AX）＝
举一反三
- 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=________________
- 写出下列程序段执行后AX的值为多少？ MOV AX, 1234H; AX=(1)H MOV CL, 4 AND AL, 0FH; AX= (2) H ADD AL, 30H; AX= (3)H SHL AH, CL; AX= (4)H AND AH, 0F3H; AX= (5)H
- 写出下列程序段执行后AX的值为多少？ MOV AX, 1234H MOV CL, 4 AND AL, 0FH ADD AL, 30H SHL AH, CL AND AH, 0F3H
- 【其它】现有程序段如下: MOV BX, 23ABH ADD BL, 0ACH MOV AX , 23F5H ADD BH , AL SBB BX , AX ADC AX , 0012H 执行上述程序段后 AX= , BX= 。 (5.0分)
- 已知AX寄存器的内容不为0，以下哪些指令执行后（AX）=0。（ ） A: SUB AX,AX B: XOR AX,AX C: AND AX,0 D: OR AX,0 E: MOV AX,0 F: CMP AX,0