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(AL)=9AH,(BL)=0BCH,当进行ADD AL,BL指令运算后,请写出标志位ZF、PF、CF、SF的内容
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ZF=0,PF=1,CF=1,SF=0
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
ZF=0,PF=1,CF=1,SF=0
设AL=57H,BL=24H,执行指令SUB AL,BL后,寄存器内容为()
A AL=57H,BL=24H
B AL=33H,BL=24H
C AL=57H,BL=33H
D.AL=33H,BL=0
A.AL=100H,BL=02H
B.AL=64H,BL=0FEH
C.AL=64H,BL=82H
D.AL=100H,BL=0FEH
A.TEST AL, BL
B.CMP AL, BL
C.AND AL, BL
D.XOR AL, BL
把BL中的数据输出到端口8CH中正确指令是()
A OUT 8CH,BL
B IN 8CH,BL
C MOV AL,BL
D.MOV AL,BL OUT 8CH,AL IN 8CH,AL
下面指令执行后,可能改变AL寄存器内容的指令是()
ATEST AL,02H
BOR AL,AL
CCMP AL,BL
DAND AL,BL
A.CMPAL,BL JC AGAIN
B.CMPAL,BL JBE AGAIN
C.CMP BL,AL JNC AGAIN
D.CMP AL,BL JNB AGAIN
AL 、 BL 中都是无符号数,若 (AL>(BL时,转到 NEXT 处。在执行 CMP AL, BL 指令 后应选用的指令()
A JNBE NEXT
B JNLE NEXT
C JBE NEXT
D JLE NEXT