A: IN BL,05H
B: XCHG AL, 50H
C: MOV AX , [BX]
D: PUSH AL
举一反三
- 指出下列指令哪些是错误的,错在哪里 (1) MOV DL,AX (2) MOV 8650H,AX (3) MOV DS,0200H (4) MOV [BX],[1200H] (5) MOV IP,0FFH (6) MOV [BX+SI+3],IP (7) MOV AX,[BX][BP] (8) MOV AL,ES:[BP] (9) MOV DL,[SI][DI] (10) MOV AX,OFFSET 0A20H (11) MOV AL,OFFSET TABLE (12)XCHG AL,50H (13) IN BL,05H (14) OUT AL,0FFEH
- 指出下列指令哪些是错误的,错在哪里 (1) MOV DL,AX (2) MOV 8650H,AX (3) MOV DS,0200H (4) MOV [BX],[1200H] (5) MOV IP,0FFH (6) MOV [BX+SI+3],IP (7) MOV AX,[BX][BP] (8) MOV AL,ES:[BP] (9) MOV DL,[SI][DI] (10) MOV AX,OFFSET 0A20H (11) MOV AL,OFFSET TABLE (12)XCHG AL,50H (13) IN BL,05H (14) OUT AL,0FFEH
- 下列指令中正确的是( )。 A: XCHG [SI], [BX] B: MOV AL, [CX] C: PUSH WORD PTR[BX] D: POPCS
- 指出下列传送类指令中非法的指令(针对8086/8088 CPU)。 (1)MOV BX,AL (2)MOV BH,AL (3)MOV 100,CL (4)MOV SS,2400H (5)MOV [SI],[BX] (6)MOV [SI+4*3],BX (7)MOV AX,[BX][BP] (8)MOV AX,[SI][BP] (9)MOV AX,BX+DI (10)MOV AX,[BX+DI] (11)MOV SP,AX (12)MOV SP,[AX] (13)XCHG AH,AL (14)XCHG 200,AL (15)OUT 21H,AL (16)OUT 260H,AL
- 下列指令中操作数在内存的是() A: mov bx,ax B: mov ax,2000h C: mov ax,[2000h] D: mov al, bl
内容
- 0
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=________________
- 1
下列互换指令使用不正确的是( )。 A: XCHG AX,BX B: XCHG AL,[BX] C: XCHG [BX],[BP] D: XCHG [BX],BX
- 2
下列指令中格式正确的是( )。 A: MOV AL,BX B: MOV CS,AX C: MOV AL,CL D: MOV [BX],[SI]
- 3
下列指令中正确的是: A: MOV 2000H,AL B: MOV [BX],[2000H] C: MOV DS,2000H D: MOV AL,BL
- 4
以下指令中执行速度最快的是() A: MOV AL,[1234H] B: ADD AX,[3344H] C: SUB AL,BL D: MOV [SI],BX