                   +------------------+                                       
                                                                            
                                   +--+                                     
                                    0  V=0;B=0;C=0                         
                                   +--+     +-----------------+             
                                   0 + =1                                  
                                     +---------                             
                                   +---+                                    
                                    2                                     
                                   +---+                                    
                          -------------------------                         
                         2 + In      4 + I2.Cp  6 + I2./Cp                  
                         +---+       +---+      +---+                       
                          3  inc V   4  INC B  5  INC C                 
                         +---+       +---+      +---+                       
                         3 + =1      5 + =1     7 + =1                      
                           ------------+------------                        
                                     +---+                                  
                                      6                                   
                                     +---+                                  
                                   -----------                              
                                 8 + INIT 9 + /INIT                         
                   +----------------+                                       
                                             +------------------+             

