1 /* Copyright (c) 2012 Massachusetts Institute of Technology
3 * Permission is hereby granted, free of charge, to any person obtaining a copy
4 * of this software and associated documentation files (the "Software"), to deal
5 * in the Software without restriction, including without limitation the rights
6 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
7 * copies of the Software, and to permit persons to whom the Software is
8 * furnished to do so, subject to the following conditions:
10 * The above copyright notice and this permission notice shall be included in
11 * all copies or substantial portions of the Software.
13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
18 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
23 #include "model/timing_graph/ElectricalDriverMultiplier.h"
24 #include "model/timing_graph/ElectricalLoad.h"
28 //-------------------------------------------------------------------------
30 //-------------------------------------------------------------------------
32 ElectricalDriverMultiplier::ElectricalDriverMultiplier(const String
& instance_name_
, ElectricalModel
* model_
)
33 : ElectricalTimingNode(instance_name_
, model_
)
38 ElectricalDriverMultiplier::~ElectricalDriverMultiplier()
43 double ElectricalDriverMultiplier::calculateDriveRes( double input_drive_res_
) const
45 return input_drive_res_
;
48 double ElectricalDriverMultiplier::calculateDelay() const
50 // This is just a model helper element, it does not contribute delay
54 double ElectricalDriverMultiplier::calculateTransition() const
56 return getMaxUpstreamRes() * getTotalDownstreamCap();
59 double ElectricalDriverMultiplier::getTotalDownstreamCap() const
61 // Finds the max of the load caps (as opposed to summing)
63 vector
<ElectricalTimingNode
*>* downstream_nodes
= ElectricalTimingNode::getDownstreamNodes();
64 for (unsigned int i
= 0; i
< downstream_nodes
->size(); ++i
)
66 max_cap
= std::max(max_cap
, downstream_nodes
->at(i
)->getTotalDownstreamCap());