下列指令错误的是() A: MOV AX,BX B: MOV [BX],2 C: MOV CS,1000H D: MOV AX,[BX]5
下列指令错误的是() A: MOV AX,BX B: MOV [BX],2 C: MOV CS,1000H D: MOV AX,[BX]5
下列指令正确的是() A: MOV AL,BX B: MOV 23H,[BX] C: MOV [DX],[BP] D: MOV AX,[BX]5
下列指令正确的是() A: MOV AL,BX B: MOV 23H,[BX] C: MOV [DX],[BP] D: MOV AX,[BX]5
(5)下列指令中,采用直接寻址方式的是() A: MOV A, 50H B: MOV 78H, PSW C: MOV A,R1 D: MOV A, B E: ADD 20H, 45H
(5)下列指令中,采用直接寻址方式的是() A: MOV A, 50H B: MOV 78H, PSW C: MOV A,R1 D: MOV A, B E: ADD 20H, 45H
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 ( )
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
MOV A, #50MOV B, #10DIV AB执行完上述指令,(A)=5
MOV A, #50MOV B, #10DIV AB执行完上述指令,(A)=5
分别说明下列指令的源操作数和目的操作数各采用什么寻址方式(写在纸上,并拍照上传) (1) MOV AX, 2048H (2) MOV CL, 0FFH (3) MOV BX, [SI] (4) MOV 5[BX], BL (5) MOV [BP+100H], AX
分别说明下列指令的源操作数和目的操作数各采用什么寻址方式(写在纸上,并拍照上传) (1) MOV AX, 2048H (2) MOV CL, 0FFH (3) MOV BX, [SI] (4) MOV 5[BX], BL (5) MOV [BP+100H], AX
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