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,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,第,3,章 作业,(P.14 ),2.,填空题,(,6,),MOV AL,,,BL,NOT AL,XOR AL,,,BL,OR BL,,,AL,程序段执行后,,(AL)=,,,(BL)=,。,第,3,章 作业,(P.14 ),(,7,)执行下列指令后:,MOV AX,,,1234H,MOV CL,,,4,ROL AX,,,CL,DEC AX,MOV CX,,,4,MUL CX,HLT,(AH)=,,,(AL)=,,,(DX)=,。,第,3,章 作业,(P.14 ),(,8,)已知,(AX)=0FFFFH,,,(DX)=0001H,MOV CX,,,2,LOP,:,SHL AX,,,1,RCL DX,,,1,LOOP LOP,上述程序段执行后,,(DX)=,,,(AX)=,。,第,3,章 作业,(P.14 ),(,9,)填写执行下列程序段后的结果。,MOV DX,,,8F70H,MOV AX,,,54EAH,OR AX,,,DX,AND AX,,,DX,NOT AX,XOR AX,,,DX,TEST AX,,,DX,(AX)=,,,(DX)=,,,SF=,,,OF=,,,CF=,,,PF=,,,ZF=,。,第,3,章 作业,(P.15 ),5.,判别下列指令的对错,如有错误,请指出其错误所在。,(1)MOV AX,,,BL,(2)MOV AL,,,SI,(3)MOV AX,,,SI,(4)PUSH CL,(5)MOV DS,,,3000H,(6)SUB 3SIDI,,,BX,(7)DIV 10,(8)MOV AL,,,ABH,(10)POP CS,(11)MOV AX,,,CX,(12)MOV SI,,,ES:DI+8,(13)IN 255H,,,AL,(14)ROL DX,,,4,(16)OUT BX,,,AL,(18)LEA DS,,,35DI,(19)MOV ES,,,DS,(20)PUSH F,第,3,章 作业,(P.16 ),6.,设,(DS)=1000H,,,(AX)=050AH,,,(BX)=2A80H,,,(SI)=0050H,,,(10050H)=3BH,,,(10051H)=86H,,,(11200H)=7AH,,,(11201H)=64H,,,(12AD0H)=0A3H,,,(12AD1H)=0B5H,。试分析下列指令执行后,,AX,中的内容。,(,1,),MOV AX,,,1200H,(,2,),MOV AX,,,DS,:,1200H,(,3,),MOV AX,,,SI,(,4,),OR AX,,,BXSI,(,5,),MOV AX,,,50HBX,第,3,章 作业,(P.16 ),9.,执行下列程序段后,,AX,和,CF,的值是多少?,STC,MOV CX,,,0403H,MOV AX,,,0A433H,SAR AX,,,CL,XCHG CH,,,CL,SHL AX,,,CL,第,3,章 作业,(P.16 ),10.,设,(AX)=0119H,执行下列程序段后,,AX,和,CF,的内容分别是多少?,MOV CH,,,AH,ADD AL,,,AH,DAA,XCHG AL,,,AH,ADC AL,,,34H,DAA,XCHG AH,,,AL,HLT,第,3,章 作业,(P.18 ),17.,执行下列程序段后,,SP,及,CF,的值分别是多少?,MOV SP,,,6000H,PUSHF,POP AX,OR AL,,,01H,PUSH AX,POPF,
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