void NETLIST_OBJECT_LIST::propagateNetCode( int aOldNetCode, int aNewNetCode, bool aIsBus )
{
if( aOldNetCode == aNewNetCode )
return;
if( aIsBus == false ) // Propagate NetCode
{
for( unsigned jj = 0; jj < size(); jj++ )
{
NETLIST_OBJECT* object = GetItem( jj );
if( object->GetNet() == aOldNetCode )
object->SetNet( aNewNetCode );
}
}
else // Propagate BusNetCode
{
for( unsigned jj = 0; jj < size(); jj++ )
{
NETLIST_OBJECT* object = GetItem( jj );
if( object->m_BusNetCode == aOldNetCode )
object->m_BusNetCode = aNewNetCode;
}
}
}
void NETLIST_OBJECT_LIST::sheetLabelConnect( NETLIST_OBJECT* SheetLabel )
{
if( SheetLabel->GetNet() == 0 )
return;
for( unsigned ii = 0; ii < size(); ii++ )
{
NETLIST_OBJECT* ObjetNet = GetItem( ii );
if( ObjetNet->m_SheetPath != SheetLabel->m_SheetPathInclude )
continue; //use SheetInclude, not the sheet!!
if( (ObjetNet->m_Type != NET_HIERLABEL ) && (ObjetNet->m_Type != NET_HIERBUSLABELMEMBER ) )
continue;
if( ObjetNet->GetNet() == SheetLabel->GetNet() )
continue; //already connected.
if( ObjetNet->m_Label != SheetLabel->m_Label )
continue; //different names.
// Propagate Netcode having all the objects of the same Netcode.
if( ObjetNet->GetNet() )
propagateNetCode( ObjetNet->GetNet(), SheetLabel->GetNet(), IS_WIRE );
else
ObjetNet->SetNet( SheetLabel->GetNet() );
}
}
void NETLIST_OBJECT_LIST::connectBusLabels()
{
// Propagate the net code between all bus label member objects connected by they name.
// If the net code is not yet existing, a new one is created
// Search is done in the entire list
for( unsigned ii = 0; ii < size(); ii++ )
{
NETLIST_OBJECT* Label = GetItem( ii );
if( Label->IsLabelBusMemberType() )
{
if( Label->GetNet() == 0 )
{
// Not yet existiing net code: create a new one.
Label->SetNet( m_lastNetCode );
m_lastNetCode++;
}
for( unsigned jj = ii + 1; jj < size(); jj++ )
{
NETLIST_OBJECT* LabelInTst = GetItem( jj );
if( LabelInTst->IsLabelBusMemberType() )
{
if( LabelInTst->m_BusNetCode != Label->m_BusNetCode )
continue;
if( LabelInTst->m_Member != Label->m_Member )
continue;
if( LabelInTst->GetNet() == 0 )
// Append this object to the current net
LabelInTst->SetNet( Label->GetNet() );
else
// Merge the 2 net codes, they are connected.
propagateNetCode( LabelInTst->GetNet(), Label->GetNet(), IS_WIRE );
}
}
}
}
}
void NETLIST_OBJECT_LIST::connectBusLabels()
{
for( unsigned ii = 0; ii < size(); ii++ )
{
NETLIST_OBJECT* Label = GetItem( ii );
if( (Label->m_Type == NET_SHEETBUSLABELMEMBER)
|| (Label->m_Type == NET_BUSLABELMEMBER)
|| (Label->m_Type == NET_HIERBUSLABELMEMBER) )
{
if( Label->GetNet() == 0 )
{
Label->SetNet( m_lastNetCode );
m_lastNetCode++;
}
for( unsigned jj = ii + 1; jj < size(); jj++ )
{
NETLIST_OBJECT* LabelInTst = GetItem( jj );
if( (LabelInTst->m_Type == NET_SHEETBUSLABELMEMBER)
|| (LabelInTst->m_Type == NET_BUSLABELMEMBER)
|| (LabelInTst->m_Type == NET_HIERBUSLABELMEMBER) )
{
if( LabelInTst->m_BusNetCode != Label->m_BusNetCode )
continue;
if( LabelInTst->m_Member != Label->m_Member )
continue;
if( LabelInTst->GetNet() == 0 )
LabelInTst->SetNet( Label->GetNet() );
else
propageNetCode( LabelInTst->GetNet(), Label->GetNet(), IS_WIRE );
}
}
}
}
}
void NETLIST_OBJECT_LIST::segmentToPointConnect( NETLIST_OBJECT* aJonction,
bool aIsBus, int aIdxStart )
{
for( unsigned i = aIdxStart; i < size(); i++ )
{
NETLIST_OBJECT* segment = GetItem( i );
// if different sheets, obviously no physical connection between elements.
if( segment->m_SheetPath != aJonction->m_SheetPath )
continue;
if( aIsBus == IS_WIRE )
{
if( segment->m_Type != NET_SEGMENT )
continue;
}
else
{
if( segment->m_Type != NET_BUS )
continue;
}
if( IsPointOnSegment( segment->m_Start, segment->m_End, aJonction->m_Start ) )
{
// Propagation Netcode has all the objects of the same Netcode.
if( aIsBus == IS_WIRE )
{
if( segment->GetNet() )
propagateNetCode( segment->GetNet(), aJonction->GetNet(), aIsBus );
else
segment->SetNet( aJonction->GetNet() );
}
else
{
if( segment->m_BusNetCode )
propagateNetCode( segment->m_BusNetCode, aJonction->m_BusNetCode, aIsBus );
else
segment->m_BusNetCode = aJonction->m_BusNetCode;
}
}
}
}
void NETLIST_OBJECT_LIST::labelConnect( NETLIST_OBJECT* aLabelRef )
{
if( aLabelRef->GetNet() == 0 )
return;
for( unsigned i = 0; i < size(); i++ )
{
NETLIST_OBJECT* item = GetItem( i );
if( item->GetNet() == aLabelRef->GetNet() )
continue;
if( item->m_SheetPath != aLabelRef->m_SheetPath )
{
if( item->m_Type != NET_PINLABEL && item->m_Type != NET_GLOBLABEL
&& item->m_Type != NET_GLOBBUSLABELMEMBER )
continue;
if( (item->m_Type == NET_GLOBLABEL
|| item->m_Type == NET_GLOBBUSLABELMEMBER)
&& item->m_Type != aLabelRef->m_Type )
//global labels only connect other global labels.
continue;
}
// NET_HIERLABEL are used to connect sheets.
// NET_LABEL are local to a sheet
// NET_GLOBLABEL are global.
// NET_PINLABEL is a kind of global label (generated by a power pin invisible)
if( item->IsLabelType() )
{
if( item->m_Label != aLabelRef->m_Label )
continue;
if( item->GetNet() )
propagateNetCode( item->GetNet(), aLabelRef->GetNet(), IS_WIRE );
else
item->SetNet( aLabelRef->GetNet() );
}
}
}
void NETLIST_OBJECT_LIST::pointToPointConnect( NETLIST_OBJECT* aRef, bool aIsBus, int start )
{
int netCode;
if( aIsBus == false ) // Objects other than BUS and BUSLABELS
{
netCode = aRef->GetNet();
for( unsigned i = start; i < size(); i++ )
{
NETLIST_OBJECT* item = GetItem( i );
if( item->m_SheetPath != aRef->m_SheetPath ) //used to be > (why?)
continue;
switch( item->m_Type )
{
case NET_SEGMENT:
case NET_PIN:
case NET_LABEL:
case NET_HIERLABEL:
case NET_GLOBLABEL:
case NET_SHEETLABEL:
case NET_PINLABEL:
case NET_JUNCTION:
case NET_NOCONNECT:
if( aRef->m_Start == item->m_Start
|| aRef->m_Start == item->m_End
|| aRef->m_End == item->m_Start
|| aRef->m_End == item->m_End )
{
if( item->GetNet() == 0 )
item->SetNet( netCode );
else
propagateNetCode( item->GetNet(), netCode, IS_WIRE );
}
break;
case NET_BUS:
case NET_BUSLABELMEMBER:
case NET_SHEETBUSLABELMEMBER:
case NET_HIERBUSLABELMEMBER:
case NET_GLOBBUSLABELMEMBER:
case NET_ITEM_UNSPECIFIED:
break;
}
}
}
else // Object type BUS, BUSLABELS, and junctions.
{
netCode = aRef->m_BusNetCode;
for( unsigned i = start; i < size(); i++ )
{
NETLIST_OBJECT* item = GetItem( i );
if( item->m_SheetPath != aRef->m_SheetPath )
continue;
switch( item->m_Type )
{
case NET_ITEM_UNSPECIFIED:
case NET_SEGMENT:
case NET_PIN:
case NET_LABEL:
case NET_HIERLABEL:
case NET_GLOBLABEL:
case NET_SHEETLABEL:
case NET_PINLABEL:
case NET_NOCONNECT:
break;
case NET_BUS:
case NET_BUSLABELMEMBER:
case NET_SHEETBUSLABELMEMBER:
case NET_HIERBUSLABELMEMBER:
case NET_GLOBBUSLABELMEMBER:
case NET_JUNCTION:
if( aRef->m_Start == item->m_Start
|| aRef->m_Start == item->m_End
|| aRef->m_End == item->m_Start
|| aRef->m_End == item->m_End )
{
if( item->m_BusNetCode == 0 )
item->m_BusNetCode = netCode;
else
propagateNetCode( item->m_BusNetCode, netCode, IS_BUS );
}
break;
}
}
}
}
