| 1/* Copyright (c) 2012 Massachusetts Institute of Technology
2 *
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:
9 *
10 * The above copyright notice and this permission notice shall be included in
11 * all copies or substantial portions of the Software.
12 *
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
19 * THE SOFTWARE.
20 */
21
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1#ifndef __DSENT_MODEL_ELECTRICAL_DRIVER_MULTIPLIER_H__
2#define __DSENT_MODEL_ELECTRICAL_DRIVER_MULTIPLIER_H__
3
4#include "util/CommonType.h"
5#include "model/timing_graph/ElectricalTimingNode.h"
6
7namespace DSENT
8{
9 // Simple class that can be used to mimic the presence of multiple drivers
10 // output drivers (each driving one of the downstream loads) when only one
11 // such driver has been instantiated (such as models that take advantage of
12 // bit duplicattion). When the downsream loads differ in load cap, it
13 // just returns the largest of the caps
14 class ElectricalDriverMultiplier : public ElectricalTimingNode
15 {
16 public:
17 ElectricalDriverMultiplier(const String& instance_name_, ElectricalModel* model_);
18 virtual ~ElectricalDriverMultiplier();
19
20 public:
21 // Calculate drive resistance of this node;
22 double calculateDriveRes(double input_drive_res_) const;
23 // Calculate wiring delay (or net delay)
24 double calculateDelay() const;
25 // Calculate transition
26 double calculateTransition() const;
27 // get total amount of downstream load capacitance
28 double getTotalDownstreamCap() const;
29
30 private:
31 // Disable copy constructor
32 ElectricalDriverMultiplier(const ElectricalDriverMultiplier& net_);
33
34 private:
35 // Name of this instance
36 String m_instance_name_;
37 };
38
39} // namespace DSENT
40
41#endif // __DSENT_MODEL_ELECTRICAL_DRIVER_MULTIPLIER_H__
42
| 22#ifndef __DSENT_MODEL_ELECTRICAL_DRIVER_MULTIPLIER_H__
23#define __DSENT_MODEL_ELECTRICAL_DRIVER_MULTIPLIER_H__
24
25#include "util/CommonType.h"
26#include "model/timing_graph/ElectricalTimingNode.h"
27
28namespace DSENT
29{
30 // Simple class that can be used to mimic the presence of multiple drivers
31 // output drivers (each driving one of the downstream loads) when only one
32 // such driver has been instantiated (such as models that take advantage of
33 // bit duplicattion). When the downsream loads differ in load cap, it
34 // just returns the largest of the caps
35 class ElectricalDriverMultiplier : public ElectricalTimingNode
36 {
37 public:
38 ElectricalDriverMultiplier(const String& instance_name_, ElectricalModel* model_);
39 virtual ~ElectricalDriverMultiplier();
40
41 public:
42 // Calculate drive resistance of this node;
43 double calculateDriveRes(double input_drive_res_) const;
44 // Calculate wiring delay (or net delay)
45 double calculateDelay() const;
46 // Calculate transition
47 double calculateTransition() const;
48 // get total amount of downstream load capacitance
49 double getTotalDownstreamCap() const;
50
51 private:
52 // Disable copy constructor
53 ElectricalDriverMultiplier(const ElectricalDriverMultiplier& net_);
54
55 private:
56 // Name of this instance
57 String m_instance_name_;
58 };
59
60} // namespace DSENT
61
62#endif // __DSENT_MODEL_ELECTRICAL_DRIVER_MULTIPLIER_H__
63
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