写出下面每条指令执行后,ZF.PF.SF.CF.OF等标志位的值subal,almoval,10haddal,90hmoval,80haddal,80hmoval,0fchaddal,05hmoval,7dhaddal,0bh这句addal,80h执行后cf等于1,of也等于1,还有这句addal,05h执行后cf等

Question

写出下面每条指令执行后,ZF.PF.SF.CF.OF等标志位的值
sub al,al
mov al,10h
add al,90h
mov al,80h
add al,80h
mov al,0fch
add al,05h
mov al,7dh
add al,0bh
这句add al,80h
执行后cf等于1,of也等于1,
还有这句add al,05h
执行后cf等于1,of等于0也不解啊
求高人耐心说说

Answer 1

Mov bx,1234H Sub bx,5678H Add bx,1234H mov word [sp],1000000010b popf 比如这边.