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POLARDUPABLEXPR(3) ABL FUNCTIONS POLARDUPABLEXPR(3)

NAME

polardupablexpr - duplicates an expression and moves down the inverters.

ORIGIN

This software belongs to the ALLIANCE CAD SYSTEM developed by the ASIM team at LIP6 laboratory of Université Pierre et Marie CURIE, in Paris, France.

Web : http://asim.lip6.fr/recherche/alliance/
E-mail : alliance-users@asim.lip6.fr

SYNOPSYS

#include "abl101.h"
chain_list ∗polardupablexpr( Expr, Polar )
  chain_list ∗Expr;
  int         Polar;

PARAMETERS

Expr
Expression to modify.
Polar
Expression polarity.

DESCRIPTION

polardupablexpr modifies Expr by moving down the inverters to the atomic level. polardupablexpr applies the Morgan's laws. If Polar is equal to ABL_POLAR_NEGATIVE the function returns the modified expression after having complemented it.

RETURN VALUE

polardupablexpr returns the modified expression.

EXAMPLE

#include "abl101.h"
  chain_list ∗Expr1;
  chain_list ∗Expr2;
  Expr1 = createabloper( ABL_NOT );
  Expr2 = createabloper( ABL_NOT );
  addablhexpr( Expr1, createablatom( "a" ) );
  addablhexpr( Expr2, Expr1 );
  Expr1 = polardupablexpr( Expr2, ABL_POLAR_POSITIVE );
  /* displays  a */
  viewablexpr( Expr1, ABL_VIEW_VHDL );

SEE ALSO

abl(1)

BUG REPORT

This tool is under development at the ASIM department of the LIP6 laboratory.
We need your feedback to improve documentation and tools.

October 1, 1997 ASIM/LIP6