assembly - ANI F0 在 8085 模拟器中无法按预期工作

Question

我在 8085 模拟器中运行以下程序，当它到达地址 0016 ANI F0 时无法正常工作。是错误还是我遗漏了什么？

MVI L,17
MVI E,99

MOV A,L 
ANI 0F                                      
MOV M,A                                             
MOV A,E                                                                    
ANI 0F                                      
ADD M                           
CPI 09                                       
MOV B,A
JC MSD                                                           

ADI 06                           


MSD:
MOV C,A
MOV A,L 
ANI F0 //Here the 17 becomes 07 when it should be 10
MOV M,A 
MOV A,E 
ANI F0 
ADD M 
JC ADD60
CPI 90
JNC ADD60

ADI 60 
END:
ADD C 
STA 2300 
HLT 

ADD60: 
ADI 60
CALL END