e8ed7b1d1b
This patch adds a tool called DSENT to the ext/ directory. DSENT is a tool that models power and area for on-chip networks. The next patch adds a script for using the tool.
54 lines
1.5 KiB
C++
54 lines
1.5 KiB
C++
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#include "model/timing_graph/ElectricalDriverMultiplier.h"
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#include "model/timing_graph/ElectricalLoad.h"
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namespace DSENT
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{
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//-------------------------------------------------------------------------
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// Electrical Net
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//-------------------------------------------------------------------------
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ElectricalDriverMultiplier::ElectricalDriverMultiplier(const String& instance_name_, ElectricalModel* model_)
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: ElectricalTimingNode(instance_name_, model_)
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{
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}
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ElectricalDriverMultiplier::~ElectricalDriverMultiplier()
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{
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}
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double ElectricalDriverMultiplier::calculateDriveRes( double input_drive_res_) const
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{
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return input_drive_res_;
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}
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double ElectricalDriverMultiplier::calculateDelay() const
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{
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// This is just a model helper element, it does not contribute delay
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return 0;
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}
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double ElectricalDriverMultiplier::calculateTransition() const
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{
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return getMaxUpstreamRes() * getTotalDownstreamCap();
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}
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double ElectricalDriverMultiplier::getTotalDownstreamCap() const
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{
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// Finds the max of the load caps (as opposed to summing)
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double max_cap = 0;
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vector<ElectricalTimingNode*>* downstream_nodes = ElectricalTimingNode::getDownstreamNodes();
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for (unsigned int i = 0; i < downstream_nodes->size(); ++i)
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{
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max_cap = std::max(max_cap, downstream_nodes->at(i)->getTotalDownstreamCap());
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}
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return max_cap;
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}
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} // namespace DSENT
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