执行以下指令后一定能使AX的值为0的是 。
A: MOV AX,1234HMOV CX,0000HXCHG AX,CX
B: MOV AX,1234HMOV CX,0000HPUSH AXPOP CX
C: MOV AX,1234HMOV CX,0000HMOV CX,AX
D: MOV AX,0000HMOV CX,1234HMOV AX,CX
A: MOV AX,1234HMOV CX,0000HXCHG AX,CX
B: MOV AX,1234HMOV CX,0000HPUSH AXPOP CX
C: MOV AX,1234HMOV CX,0000HMOV CX,AX
D: MOV AX,0000HMOV CX,1234HMOV AX,CX
举一反三
- 下列MOV指令中,正确的指令是( ): MOV AX, BX/#/MOV AX, CX/#/MOV AX, [BX]/#/MOV AX, [CX]
- 不能实现AX=BX-CX功能的指令是( )。 A: SUB BX,CX MOV AX,BX B: SUB AX,BX SUB AX,CX C: XCHG AX,BXSUB AX,CX D: MOV AX,BXSUB AX,CX
- 执行下列指令后,(AX)=( )。 MOV AX,1234H MOV CL,4 ROL AX,CL DEC AX MOV CX,4 MUL CX HLT
- 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=________________
- MOV DX,1 MOV AX,0 MOV CX,10 DIV CX 执行这段代码后,DX是( ),AX是( )。