MOV CX,10MOV AL,20HXOR BX,BX ...列中,与LOOP AGAIN等效的指令是
MOV CX,10MOV AL,20HXOR BX,BX ...列中,与LOOP AGAIN等效的指令是
MOV CX,10MOV AL,20HXOR BX,BX ...序中,与 XOR BX,BX等价的指令是
MOV CX,10MOV AL,20HXOR BX,BX ...序中,与 XOR BX,BX等价的指令是
中国大学MOOC: MOV CX,10MOV AL,20HXOR BX,BX AGAIN:ADD BL,ALADC BH,0 LOOP AGAIN; MOV AX,BX;上述程序中,与 XOR BX,BX等价的指令是
中国大学MOOC: MOV CX,10MOV AL,20HXOR BX,BX AGAIN:ADD BL,ALADC BH,0 LOOP AGAIN; MOV AX,BX;上述程序中,与 XOR BX,BX等价的指令是
说出下列汇编程序中源操作数与目的操作数的寻址方式(1) MOV AH,F5H;(2) MOV AX, F58AH;(3) MOV AX,[2000H];(4) MOV AX,[BX];(5) MOV AX,10[SI];(6) MOV AX,[SI]10;(7) MOV AX,10[SI 10];(8) MOV AX, [BX][SI];(9) MOV AX, 10[BX][SI];
说出下列汇编程序中源操作数与目的操作数的寻址方式(1) MOV AH,F5H;(2) MOV AX, F58AH;(3) MOV AX,[2000H];(4) MOV AX,[BX];(5) MOV AX,10[SI];(6) MOV AX,[SI]10;(7) MOV AX,10[SI 10];(8) MOV AX, [BX][SI];(9) MOV AX, 10[BX][SI];
MOV DX,1 MOV AX,0 MOV CX,10 DIV CX 执行这段代码后,DX是( ),AX是( )。
MOV DX,1 MOV AX,0 MOV CX,10 DIV CX 执行这段代码后,DX是( ),AX是( )。
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
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
执行如下程序, MOV EAX, 0 MOV EBX, 1 MOV ECX, 10L1: ADD EAX, EBX INC EBX LOOP L1执行后,EBX=( ) A: 9 B: 10 C: 11 D: 12
执行如下程序, MOV EAX, 0 MOV EBX, 1 MOV ECX, 10L1: ADD EAX, EBX INC EBX LOOP L1执行后,EBX=( ) A: 9 B: 10 C: 11 D: 12
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
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
DS=1000H,ES=2000H,SS=3500H,SI=00A0H,DI=0024H,BX=0100H,BP=0200H,数据段中变 量名为VAL 的偏移地址值为0030H,说明下列源操作数的寻址方式和物理地址? (1)MOV AX,[100H] (2) MOV AX,VAL (3)MOV AX,[BX] (4) MOV AX,ES:[BX] (5)MOV AX,[SI] (6) MOV AX,[BX+10H] (7)MOV AX,[BP] (8) MOV AX,VAL[BP][SI] (9)MOV AX,VAL[BX][DI] (10) MOV AX,[BP][DI]
DS=1000H,ES=2000H,SS=3500H,SI=00A0H,DI=0024H,BX=0100H,BP=0200H,数据段中变 量名为VAL 的偏移地址值为0030H,说明下列源操作数的寻址方式和物理地址? (1)MOV AX,[100H] (2) MOV AX,VAL (3)MOV AX,[BX] (4) MOV AX,ES:[BX] (5)MOV AX,[SI] (6) MOV AX,[BX+10H] (7)MOV AX,[BP] (8) MOV AX,VAL[BP][SI] (9)MOV AX,VAL[BX][DI] (10) MOV AX,[BP][DI]