Stack
management commands


  Return

  
  

  


   
       Stack management commands allows some reordering of the floating-point numbers in the
       arithmetic stack:

    


    

    
 dup 
               duplicate (enter a copy of) register x

    
 drop 
               delete register x

    
 swap 
               interchange register x and register y

    
 over 
               duplicate (enter a copy of) register y

    
 up 
               roll up the content of the stack by bringing the 
	       oldest element in register x

    
 down 
               roll down the content of the stack by bringing register x 
	       to the top of the stack

    
 Clear Stack 
               remove the whole content of the floating-point stack