假定(AL)=75H,(CH)=29H,依次执行SUBAL,CH指令和DAS指令后,AL值为()。
- A9eH
- B46H
- C4cH
- D04H
假定(AL)=75H,(CH)=29H,依次执行SUBAL,CH指令和DAS指令后,AL值为()。
1、若(AL)=84H,执行指令XOR AL,AL后,AL的内容为()。
若(AL)=84H,执行指令XOR AL,AL后,AL的内容为()。A84HB7BHC00HD48H
2、假定A=83H,(R0)=17H,(17H)=34H,执行以下指令:ANLA
假定A=83H,(R0)=17H,(17H)=34H,执行以下指令:ANLA,#17HORL17H,AXRLA,@R0CPLA后,A的内容为()A0CBHB6FFFC8721D以上都不正确
3、若(AL)=0C6H,(CL)=03H,执行指令SAR AL,CL后,AL的
若(AL)=0C6H,(CL)=03H,执行指令SAR AL,CL后,AL的内容为()。A18HB28HC48HD0F8H
4、若(R0)=30H,(30H)=75H,(75H)=90H,执行指令MOVA
若(R0)=30H,(30H)=75H,(75H)=90H,执行指令MOVA,@R0后,(A)=()A30HB75HC90HD00H
5、假定A=83H,(R0)=17H,(17H)=34H,执行以下程序段 ANL
假定A=83H,(R0)=17H,(17H)=34H,执行以下程序段ANL A,#17HORL 17H,AXRL A,@R0CPL A后,A的内容为()。ACBHB03HCEBHDC8H
6、若(AL)=0C6H,(CL)=03H,执行指令SAR AL,CL后,AL的
若(AL)=0C6H,(CL)=03H,执行指令SAR AL,CL后,AL的内容为()A18HB28HC48HD0F8H