请问S5 程序指令意思 点击：395 | 回复：3

阿水－－王者之师

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发表于：2012-10-30 07:30:48

楼主

Segment 1 of 6                                                   Lib =23017                                                     
      :STL                                                                                                                       
      :C    DB   4                                                                                                               
      :***                                                                                                                       
 Segment 2 of 6                                                                                                                  
      :AN   S    4.0                        这个S4.0是什么地址呢   ？                                                                                  
      :=    D  150.0                                                                                                             
      :A    D  150.0                                                                                                             
      :O(                                                                                                                        
      :AN   S    4.1                            01                                                                               
      :=    D  150.1                            01                                                                               
      :A    D  150.1                            01                                                                               
      :)                                        01                                                                               
      :=    D    2.3                                                                                                             
      :=    F    4.7                                                                                                             
      :***                                                                                                                       
      这段程序中用到如：D150.0 请问这个地址表示：数据块DB4中的D150.0吗，即S5中数据块内地址可按位寻址吗？即如:D150.12表示数据块DB4第150个字的第12位吗。
      还有：JU +9或 JC +25又是什么意思呢，如程序：
 Segment 1 of 26                                                  Lib =                                                          
      :JU   +  9                    这个是什么意思，JU表示无条件调用，而此处这样使用表示什么？                                                                                
      :BLD  135                                                                                                                  
      :T    FW   7                                                                                                               
      :OX     1                                                                                                                  
      :ON   Q  122.1                                                                                                             
      :CFW                                                                                                                       
      :NOP  0                                                                                                                    
      :NOP  0                                                                                                                    
      :NOP  0                                                                                                                    
      :A    F  234.1                                                                                                             
      :=    F  198.0                                                                                                             
      :***                                                                                                                       
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