/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
DdNode * Extra_bddSpaceEquations( DdManager * dd, DdNode * bSpace )
{
DdNode * zRes;
DdNode * zEquPos;
DdNode * zEquNeg;
zEquPos = Extra_bddSpaceEquationsPos( dd, bSpace ); Cudd_Ref( zEquPos );
zEquNeg = Extra_bddSpaceEquationsNeg( dd, bSpace ); Cudd_Ref( zEquNeg );
zRes = Cudd_zddUnion( dd, zEquPos, zEquNeg ); Cudd_Ref( zRes );
Cudd_RecursiveDerefZdd( dd, zEquPos );
Cudd_RecursiveDerefZdd( dd, zEquNeg );
Cudd_Deref( zRes );
return zRes;
}
ref_t shadow_or(shadow_mgr mgr, ref_t aref, ref_t bref) {
ref_t r = REF_ONE;
dd_type_t dtype = IS_BDD;
bool za = is_zdd(mgr, aref);
bool zb = is_zdd(mgr, bref);
bool aa = is_add(mgr, aref);
bool ab = is_add(mgr, bref);
if (mgr->do_cudd && mgr->nzvars > 0) {
/* Check whether arguments are ZDDs */
DdNode *an = get_ddnode(mgr, aref);
DdNode *bn = get_ddnode(mgr, bref);
DdNode *rn;
if (za || zb) {
if (aa || ab) {
err(false, "Can't mix ADDs and ZDDs");
}
dtype = IS_ZDD;
/* Make sure they're both ZDDs */
if (!za) {
an = zconvert(mgr, an);
}
if (!zb) {
bn = zconvert(mgr, bn);
}
rn = Cudd_zddUnion(mgr->bdd_manager, an, bn);
reference_dd(mgr, rn);
r = dd2ref(rn, IS_ZDD);
add_ref(mgr, r, rn);
if (!za)
unreference_dd(mgr, an, IS_ZDD);
if (!zb)
unreference_dd(mgr, bn, IS_ZDD);
}
}
if (mgr->do_cudd) {
/* Check whether arguments are ADDs */
DdNode *an = get_ddnode(mgr, aref);
DdNode *bn = get_ddnode(mgr, bref);
DdNode *rn;
if (aa || ab) {
dtype = IS_ADD;
/* Make sure they're both ADDs */
if (!aa) {
an = aconvert(mgr, an);
}
if (!ab) {
bn = aconvert(mgr, bn);
}
rn = Cudd_addApply(mgr->bdd_manager, Cudd_addOr, an, bn);
reference_dd(mgr, rn);
r = dd2ref(rn, IS_ADD);
add_ref(mgr, r, rn);
if (!aa)
unreference_dd(mgr, an, IS_ADD);
if (!ab)
unreference_dd(mgr, bn, IS_ADD);
}
}
if (dtype == IS_BDD)
r = shadow_ite(mgr, aref, shadow_one(mgr), bref);
#if RPT >= 4
char buf1[24], buf2[24], buf3[24];
shadow_show(mgr, aref, buf1);
shadow_show(mgr, bref, buf2);
shadow_show(mgr, r, buf3);
report(4, "%s %sOR %s --> %s", buf1, dtype == IS_ZDD ? "Z" : dtype == IS_ADD ? "A" : "" , buf2, buf3);
#endif
return r;
}
