\subsubsection{Description} Most common boolean operators can be instantiated without the \verb-Inst- constructor. \subsubsection{List} Boolean operators are listed below : \begin{itemize} \item \verb-And2- : \verb-q <= i0 & i1- \item \verb-Or2- : \verb-q <= i0 | i1- \item \verb-Xor2- : \verb-q <= i0 ^ i1- \item \verb-Inv- : \verb-q <= ~i0- \end{itemize} \subsubsection{Generators to instantiate} One can choose the generator to be used. Some methods are applied to the cell and set the generator used when using \verb-&-, \verb-|-, \verb-^- and \verb-~-. The generators used by default are the ones from the virtual library.\\ \indent Methods are : \begin{itemize} \item \verb-SetAnd- \item \verb-SetOr- \item \verb-SetXor- \item \verb-SetNot- \end{itemize} \subsubsection{Example} \begin{verbatim} class essai ( Model ) : def Interface ( self ) : self.A = LogicIn ( "a", 4 ) self.B = LogicIn ( "b", 4 ) self.B = LogicIn ( "c", 4 ) self.S = LogicOut ( "s", 4 ) self.vdd = VddIn ( "vdd" ) self.vss = VssIn ( "vss" ) def Netlist ( self ) : self.S <= ( ~self.A & self.B ) | self.C \end{verbatim} \subsubsection{Errors} Some errors may occur : \begin{itemize} \item \verb-[Stratus ERROR] & : the nets must have the same lenght.-\\When one uses boolean expressions, one has to check that the sizes of both nets are equivalent. \item \verb-[Stratus ERROR] : there is no alim.-\\The cell being created does not have the alimentation nets. The instanciation is impossible. \end{itemize} \subsubsection{See Also} \hyperref[ref]{\emph{Introduction}}{}{Introduction}{secintroduction} \hyperref[ref]{\emph{Netlist}}{}{Netlist}{secnetlist} \hyperref[ref]{\emph{Instanciation of a multiplexor}}{}{Multiplexor}{secmux} \hyperref[ref]{\emph{Instanciation of a shifter}}{}{Shifter}{secshift} \hyperref[ref]{\emph{Instanciation of a register}}{}{Reg}{secreg} \hyperref[ref]{\emph{Instanciation of constants}}{}{Constant}{secconstant} \hyperref[ref]{\emph{Arithmetical operations}}{}{Arithmetic}{secarithmetic} \hyperref[ref]{\emph{Comparison operations}}{}{Comparison}{seccomp}