检测点11.2

写出下面每条指令执行后，ZF PF SF CF OF等标志位的值。

				CF	OF	SF	ZF	PF
sub al,al		0	0 	0	0  	1
;00000000 	                    
mov al,10H		0	0 	0	0  	1
;0001000	                    
add al,90H		0	0 	1	0  	1
	0001000	                    
	1001000	                    
=	1010000			            
mov al,80H		0	0 	1	0   1 
;10000000
add al,80H		1	1	0	1	1
	10000000
	10000000
=  100000000
mov al,0FCH		1	1	0	1	1	
11111100
add al,05H		1	0	0	0	0
	11111100=-4
	00000101=5
=  100000001
mov al,7DH		1	0	0	0	0
01111101
add al,0BH		0	1	1	0	1
	01111101=125
	00001011=11
=	10001000	

 debug跟踪，结果可以得到验证，如下图。mov，push，pop等数据传输指令对于ZF PF SF CF OF没有影响