信息處理技術章節(jié)練習(2019.05.09)

LD *AR1+， A  || MAC *AR2-， B； 
Before Instruction               After Instruction 
A         00 0000 0000       A         （）      
B         00 0000 1000       B         （）      
T                 0100       T             0100             
AR1                0030     AR1            （）        
AR2                0040     AR2            （）        
Data Memory    
0030H              2345     0030H                 2345    
0040H              5432     0040H                 5432

已知（80H）=50H，AR2=84H，AR3=86H，AR4=88H。
MVKD 80H， *AR2 
MVDD *AR2， *AR3 
MVDM 86H， AR4 
運行以上程序后，（80H）、（84H）、*AR3和AR4的值分別等于多少？