Generate ( 'DpgenNand2mask', modelname , param = { 'nbit' : n , 'const' : constVal , 'physical' : True , 'behavioral' : True } )
n
bits conditionnal NAND mask named modelname
.
n
bits )
n
bits )
param
.
cmd
signal is set to zero
, the mask is NOT applied, so the whole operator behaves like an inverter.
cmd
signal is set to one
, the mask is applied, the output is the complemented result of the input value ANDed with the mask (suplied by constVal
).
constVal
is given to the macro-generator call, therefore the value cannot be changed afterward : it's hard wired in the operator.
constVal
argument. Be aware that it is a character string.
nq <= WITH cmd SELECT not(i0) WHEN '0', not(i0 and constVal) WHEN '1';
from stratus import * class inst_nand2mask ( Model ) : def Interface ( self ) : self.i = SignalIn ( "i", 32 ) self.cmd = SignalIn ( "cmd", 1 ) self.o = SignalOut ( "o", 32 ) self.vdd = VddIn ( "vdd" ) self.vss = VssIn ( "vss" ) def Netlist ( self ) : Generate ( 'DpgenNand2mask', 'nand2mask_0x0000ffff' , param = { 'nbit' : 32 , 'const' : "0x0000FFFF" , 'physical' : True } ) self.I = Inst ( 'nand2mask_0x0000ffff', 'inst' , map = { 'i0' : self.i , 'cmd' : self.cmd , 'nq' : self.o , 'vdd' : self.vdd , 'vss' : self.vss } ) def Layout ( self ) : Place ( self.I, NOSYM, Ref(0, 0) )