61 lines
2.0 KiB
TeX
61 lines
2.0 KiB
TeX
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\begin{itemize}
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\item \textbf{Name} : DpgenConst -- Constant Macro-Generator
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\item \textbf{Synopsys} :
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\begin{verbatim}
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Generate ( 'DpgenConst', modelname
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, param = { 'nbit' : n
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, 'const' : constVal
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, 'physical' : True
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, 'behavioral' : True
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}
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)
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\end{verbatim}
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\item \textbf{Description} : Generates a \verb-n- bits constant named \verb-modelname-.
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\item \textbf{Terminal Names} :
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\begin{itemize}
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\item \textbf{q} : the constant (output, \verb-n- bit)
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\item \textbf{vdd} : power
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\item \textbf{vss} : ground
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\end{itemize}
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\item \textbf{Parameters} : Parameters are given in the map \verb-param-.
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\begin{itemize}
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\item \textbf{nbit } (mandatory) : Defines the size of the generator
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\item \textbf{const} (mandatory) : Defines the constant (string beginning with 0b, 0x or 0o functions of the basis)
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\item \textbf{physical} (optional, default value : False) : In order to generate a layout
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\item \textbf{behavioral} (optional, default value : False) : In order to generate a behavior
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\end{itemize}
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\item \textbf{Behavior} :
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\begin{verbatim}
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q <= constVal
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\end{verbatim}
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\item \textbf{Example} :
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\begin{verbatim}
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from stratus import *
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class inst_const ( Model ) :
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def Interface ( self ) :
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self.o = SignalOut ( "o", 32 )
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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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Generate ( 'DpgenConst', 'const_0x0000ffff'
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, param = { 'nbit' : 32
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, 'const' : "0x0000FFFF"
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, 'physical' : True
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}
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)
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self.I = Inst ( 'const_0x0000ffff', 'inst'
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, map = { 'q' : self.o
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, 'vdd' : self.vdd
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, 'vss' : self.vss
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}
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)
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def Layout ( self ) :
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Place ( self.I, NOSYM, Ref(0, 0) )
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\end{verbatim}
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\end{itemize}
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