4. Commentary.
                           ══════════════

   The commentary are used for explanation of one or another 
 command  functioning, or the whole program as a general, as 
 well as for "commenting" some checking command.
   Begin sign of commentary is a special symbol 

                             '\'.

  The assembler ignores all meeting symbols before the next 
symbol '\' or to the next line. For instance:  

     \ short example of the program \
     { add RB,X,Z;  }      \ load X in R10
     { add R11,Y,Z; }      \ load Y in R11
     { add RQ,R10,Z;       \ rewrite X in RQ
       cjp l1,compute; }   \ if number is positive that moves to
                           \ calculation
     { sub RQ,Z,RQ;  }     \ otherwise bring X to positive
     { sub R11,Z,R11; }    \ convert Y for correct sign