72 lines
2.3 KiB
TeX
72 lines
2.3 KiB
TeX
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\subsubsection{Name}
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Eq/Ne : Easy way to test the value of the nets
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\subsubsection{Synopsys}
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\begin{verbatim}
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netOut <= net.Eq ( "n" )
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\end{verbatim}
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\subsubsection{Description}
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Comparaison functions are listed below :
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\begin{itemize}
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\item \verb-Eq- : returns \verb-true- if the value of the net is equal to \verb-n-.
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\item \verb-Ne- : returns \verb-true- if the value of the net is different from \verb-n-.
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\end{itemize}
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\indent Note that it is possible to change the generator instanciated with the \verb-SetComp- method.
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\subsubsection{Parameters}
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The constant given as argument must be a string representing :
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\begin{itemize}
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\item A decimal number
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\item A binary number : the string must begin with "0b"
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\item An hexadecimal number : the string must begin with "0x"
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\end{itemize}
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\subsubsection{Example}
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\begin{verbatim}
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class essai ( Model ) :
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def Interface ( self ) :
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self.A = SignalIn ( "a", 4 )
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self.S = SignalOut ( "s", 1 )
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self.T = SignalOut ( "t", 1 )
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self.vdd = VddIn ( "vdd" )
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self.vss = VssIn ( "vss" )
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def Netlist ( self ) :
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self.S <= self.A.Eq ( "4" )
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self.T <= self.A.Ne ( "1" )
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\end{verbatim}
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\subsubsection{Errors}
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Some errors may occur :
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\begin{itemize}
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\item \verb-[Stratus ERROR] Eq :-\\\verb-the number does not match with the net's lenght.-\\When one uses comparaison functions on one net, one has to check that the number corresponds to the size of the net.
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\item \verb-[Stratus ERROR] Eq :-\\\verb-the argument must be a string representing a number in decimal,-\\\verb-binary (0b) or hexa (0x).-\\The string given as argument does not have the right form.
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\end{itemize}
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\begin{htmlonly}
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\subsubsection{See Also}
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\hyperref[ref]{\emph{Introduction}}{}{Introduction}{secintroduction}
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\hyperref[ref]{\emph{Netlist}}{}{Netlist}{secnetlist}
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\hyperref[ref]{\emph{Instanciation of a multiplexor}}{}{Multipliexor}{secmux}
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\hyperref[ref]{\emph{Instanciation of a shifter}}{Shifter}{}{secshift}
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\hyperref[ref]{\emph{Instanciation of a register}}{}{Reg}{secreg}
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\hyperref[ref]{\emph{Instanciation of constants}}{Constant}{}{secconstant}
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\hyperref[ref]{\emph{Boolean operations}}{}{Boolean}{secbool}
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\hyperref[ref]{\emph{Arithmetical operations}}{}{Arithmetic}{secarithmetic}
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\end{htmlonly}
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