指出下列指令的错误。(1)MOV AX,[SI][DI](2)MOV [SI], 0FFH(3)MOV CL,BX
指出下列指令的错误。(1)MOV AX,[SI][DI](2)MOV [SI], 0FFH(3)MOV CL,BX
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,BX=0200H,SI=2,内存10200H-10205H 单元的内容分别是10H, 2AH, 3CH, 46H, 59H, 6BH 下列指令执行后,AX=? (1)MOV AX,0200H (2) MOV AX,[200H] (3)MOV AX,BX (4) MOV AX,3[BX] (5)MOV AX,[BX+SI] (6) MOV AX,2[BX+SI]
DS=1000H,BX=0200H,SI=2,内存10200H-10205H 单元的内容分别是10H, 2AH, 3CH, 46H, 59H, 6BH 下列指令执行后,AX=? (1)MOV AX,0200H (2) MOV AX,[200H] (3)MOV AX,BX (4) MOV AX,3[BX] (5)MOV AX,[BX+SI] (6) MOV AX,2[BX+SI]
(3)下列指令中,采用立即寻址方式的是( ) A: MOV 75H, #37H B: MOV R1, A C: MOV 75H, 20H D: ORL TL0, A
(3)下列指令中,采用立即寻址方式的是( ) A: MOV 75H, #37H B: MOV R1, A C: MOV 75H, 20H D: ORL TL0, A
指出下列指令源操作数的寻址方式:(如立即数寻址,直接寻址等) (1)MOV A , #00H ( ) (2)MOV A , 50H ( ) (3)MOV A , @R0 ( ) (4)MOV A , R5 ( ) (5)MOV A , @A+DPTR( ) (6)SJMP 70H ( ) (7)CLR A ( )
指出下列指令源操作数的寻址方式:(如立即数寻址,直接寻址等) (1)MOV A , #00H ( ) (2)MOV A , 50H ( ) (3)MOV A , @R0 ( ) (4)MOV A , R5 ( ) (5)MOV A , @A+DPTR( ) (6)SJMP 70H ( ) (7)CLR A ( )
给出下列指令是否正确,对于不正确的指令,指出错误,并加以改正(1) MOV AX,BL(2) MOV DS,1000H(3)MOV [BX],[SI](4) MOV CS,AX;
给出下列指令是否正确,对于不正确的指令,指出错误,并加以改正(1) MOV AX,BL(2) MOV DS,1000H(3)MOV [BX],[SI](4) MOV CS,AX;
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];
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
(3)LEA DX,[3000H] MOV AX, DX AX=
(3)LEA DX,[3000H] MOV AX, DX AX=