假设(DS)=3000H,(SS)=3000H,(AX)=2000H,(BX)=1100H,(SI)=2,(DI)=1,(SP)=100H,(31200H)=40H。请写出下列指令单独执行完后,有关寄存器和存储单元的内容。DEC BYTE PTR [1200H]
假设(DS)=3000H,(SS)=3000H,(AX)=2000H,(BX)=1100H,(SI)=2,(DI)=1,(SP)=100H,(31200H)=40H。 请写出下列指令单独执行完后,有关寄存器和存储单元的内容。DEC BYTE PTR [1200H]
相关考题:
有指令MOV AX,COUNT[SI],如果(DS)=3000H,(SI)=2000H,COUNT=3000H,则物理地址是( )A.35000HB.62000HC.65000HD.8000H
假设(DS)=3000H,(SS)=3000H,(AX)=2000H,(BX)=1100H,(SI)=2,(DI)=1,(SP)=100H,(31200H)=40H。请写出下列指令单独执行完后,有关寄存器和存储单元的内容。ADD AX ,BX
设SP=2000H,AX=3000H,BX=5000H,执行下列片段程序后,问SP=?AX=?BX=? PUSH AX ;SP ← SP - 2 = 1FFEH,AX=3000H PUSH BX ;SP ← SP - 2 = 1FFCH,BX=5000H POP AX ;SP ← SP + 2 = 1FFEH,AX=5000H
设有关寄存器及存储单元的内容为:DS=2000H,BX=0100H,AX=1200H,SI=0002H,[20100H]=12H,[20101H]=34H,[20102H]=56H,[20103H]=78H,[21200H]=2AH,[21201H]=4CH,[21202H]=0B7H,[21203H]=65H,若MOV AX,1100H[BX][SI]指令单独执行后,AX为多少?
设有关寄存器及存储单元的内容为:DS=2000H,BX=0100H,AX=1200H,SI=0002H,[20100H]=12H,[20101H]=34H,[20102H]=56H,[20103H]=78H,[21200H]=2AH,[21201H]=4CH,[21202H]=0B7H,[21203H]=65H,若MOV DX,1100H[BX]指令单独执行后,DX为多少?
假设(CS)=3000H,(DS)=4000H,(ES)=2000H,(SS)=5000H,(AX)=2060H,(BX)=3000H,(CX)=0005H,(DX)=0,(SI)=2060H,(DI)=3000H,(43000H)=06H,(43001H)=0A0H,(23000H)=16H,(23001H)=0B1H,(SP)=0FFFEH,(CF)=1,(DF)=1 执行指令:ADC AX,WORD PTR [SI+0FA0H]后,AX寄存器的内容:(),标志状态:SF=(),ZF=(),OF=(),CF=(),PF=(),AF=()。
分析下列指令的正误,对于错误的指令要说明原因并加以改正。 (1) MOV AH,BX (2) MOV [BX],[SI] (3) MOV AX,[SI][DI] (4) MOV MYDAT[BX][SI],ES:AX (5) MOV BYTE PTR[BX],1000 (6) MOV BX,OFFSET MAYDAT[SI] (7) MOV CS,AX (8) MOV DS,BP
给定寄存器及存储单元的内容为:(DS)=2000H,(BX)=0100H,(SI)=0002H,(20100)=32H,(20101)=51H,(20102)=26H,(20103)=83H,(21200)=1AH,(21201)=B6H,(21202)=D1H,(21203)=29H。试说明下列各条指令执行完后,AX寄存器中保存的内容是什么。 (1)MOVAX,1200H (2)MOVAX,BX (3)MOVAX,[1200H] (4)MOVAX,[BX] (5)MOVAX,1100H[BX] (6)MOVAX,[BX][SI]
设CS=1000H,DS=2000H,ES=3000H,SS=4000H,IP=100H,SP=200H,BX=300H,BP=400H,SI=500H,则 ①下一条待执行指令的物理地址为多少? ②当前栈顶的物理地址为多少? ③[BX]代表的存储单元的物理地址为多少? ④[BP]代表的存储单元的物理地址为多少? ⑤ES:[BX+SI]代表的存储单元的物理地址为多少?
已知DS=2000H,BX=3000H,SI=4000H。执行完毕MOV AL,[BX+SI]之后,将()存储单元的内容送到AL寄存器去。A、27000HB、27001HC、9000HD、9001H
假设(DS)=3000H,(SS)=3000H,(AX)=2000H,(BX)=1200H,(SI)=2,(DI)=1,(SP)=100H,(31200H)=50H。请写出下列指令单独执行后,有关寄存器和存储单元的内容。 ADD AX,1200H SUB AX, BX MOV [BX],AX PUSH AX DEC BYTE PTR [1200H]
设有关寄存器及存储单元的内容为:DS=2000H,BX=0100H,AX=1200H,SI=0002H,[20100H]=12H,[20101H]=34H,[20102H]=56H,[20103H]=78H,[21200H]=2AH,[21201H]=4CH,[21202H]=0B7H,[21203H]=65H,若MOV BX,[1200H]指令单独执行后,BX为多少?
现有(DS)=2000H ,(BX)=0100H,(SI)=0002H,(20100H)=12H,(20101H)=34H,(20102H)=56H,(20103H)=78H,(21200H)=2AH,(21201H)=4CH,(21202H)=0B7H,(21203H)=65H,说明下列指令执行后AX寄存器的内容。 (1)MOV AX,1200H (2)MOV AX,BX (3)MOV AX,[1200H] (4)MOV AX,[BX] (5)MOV AX,1100H[BX] (6)MOV AX,[BX][SI] (7)MOV AX,1100H[BX][SI]
假设(DS)=3000H,(SS)=3000H,(AX)=2000H,(BX)=1100H,(SI)=2,(DI)=1,(SP)=100H,(31200H)=40H。请写出下列指令单独执行完后,有关寄存器和存储单元的内容。PUSH AX
现有(DS)=2000H,(BX)=0100H,(SI)=0002H,(20100H)=12H,(20101H)=34H,(20102H)=56H,(20103H)=78H,(21200H)=2AH,(21201H)=4CH,(21202H)=0B7H,(21203H)=65H,说明下列指令执行后AX寄存器的内容。 (1)MOVAX,1200H (2)MOVAX,BX (3)MOVAX,[1200H] (4)MOVAX,[BX] (5)MOVAX,1100H[BX] (6)MOVAX,[BX][SI] (7)MOVAX,1100H[BX][SI]
问答题设SP=2000H,AX=3000H,BX=5000H,执行下列片段程序后,问SP=?AX=?BX=? PUSH AX ;SP ← SP - 2 = 1FFEH,AX=3000H PUSH BX ;SP ← SP - 2 = 1FFCH,BX=5000H POP AX ;SP ← SP + 2 = 1FFEH,AX=5000H
问答题假设(DS)=3000H,(SS)=3000H,(AX)=2000H,(BX)=1100H,(SI)=2,(DI)=1,(SP)=100H,(31200H)=40H。请写出下列指令单独执行完后,有关寄存器和存储单元的内容。ADD AX ,BX
问答题假设(DS)=3000H,(SS)=3000H,(AX)=2000H,(BX)=1100H,(SI)=2,(DI)=1,(SP)=100H,(31200H)=40H。请写出下列指令单独执行完后,有关寄存器和存储单元的内容。DEC BYTE PTR [1200H]
单选题设(DS)=3000H,(SS)=2000H,(BP)=1000H,指令NEG BYTE PTR[BP]中,操作数的物理地址是()。A40000HB31000HC30000HD21000H
问答题假设(DS)=3000H,(SS)=3000H,(AX)=2000H,(BX)=1100H,(SI)=2,(DI)=1,(SP)=100H,(31200H)=40H。请写出下列指令单独执行完后,有关寄存器和存储单元的内容。PUSH AX
问答题假设(DS)=3000H,(SS)=3000H,(AX)=2000H,(BX)=1100H,(SI)=2,(DI)=1,(SP)=100H,(31200H)=40H。请写出下列指令单独执行完后,有关寄存器和存储单元的内容。ADD AX,1000H