createablxorbinexpr

CREATEABLXORBINEXPR(3)           ABL FUNCTIONS          CREATEABLXORBINEXPR(3)



NAME
       createablxorbinexpr - creates an 'xor' or 'xnor' operator expression.


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 *createablxorbinexpr( Oper, Expr1, Expr2 )
         long        Oper;
         chain_list ∗Expr1;
         chain_list ∗Expr2;

PARAMETERS
       Oper                Operator ABL_XOR or ABL_NXOR.

       Expr1               First expression.

       Expr2               Second expression.

DESCRIPTION
       createablxorbinexpr creates a binary 'xor' or 'xnor' operator
       expression with the 'and', 'or' form.  createablbinexpr simplifies
       eventually the sub-expressions.  The expression pointers Expr1 and
       Expr2 MUSTN'T be used after the call to this function.

RETURN VALUE
       createablxorbinexpr returns a pointer to the new operator expression.

ERRORS
       "ablcreate: bad operator xx !",
              Operator must be ABL_XOR or ABL_NXOR.

EXAMPLE
       #include "abl101.h"
          chain_list ∗ExprA;
          chain_list ∗ExprB;
          chain_list ∗ExprAxorB;
          ExprA = createablatom( "a" );
          ExprB = createablatom( "b" );
          ExprAxorB  = createablxorbinexpr( ABL_XOR, ExprA, ExprB );
          /* displays (a and (not b) or (b and (not a)) */
          viewablexpr( ExprAxorB, ABL_VIEW_VHDL );

SEE ALSO
       abl(1) abl(1) createablatom(3), createabloper(3), createablbinexpr(3),
       createablunaryexpr(3), createablnotexpr(3), addablhexpr(3),
       addablqexpr(3).




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






ASIM/LIP6                       October 1, 1997         CREATEABLXORBINEXPR(3)