NAME

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

See the file buster/alliance/alc_origin.1.en.gz.

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 !",

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).

See the file buster/alliance/alc_bug_report.1.en.gz.