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.
74 lines
1.9 KiB
C++
74 lines
1.9 KiB
C++
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#include "model/timing_graph/ElectricalNet.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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ElectricalNet::ElectricalNet(const String& instance_name_, ElectricalModel* model_)
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: ElectricalTimingNode(instance_name_, model_), m_distributed_res_(0), m_distributed_cap_(0)
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{
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}
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ElectricalNet::~ElectricalNet()
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{
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}
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double ElectricalNet::calculateDelay() const
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{
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// Remember that this is a pi model, delay is distributed cap * distributed_res / 2 +
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// distributed res * (other downstream caps)
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return 0.693 * (getTotalDownstreamCap() - m_distributed_cap_ / 2) * m_distributed_res_;
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}
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double ElectricalNet::calculateTransition() const
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{
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return 1.386 * getMaxUpstreamRes() * (m_distributed_cap_ * 0.2 + ElectricalTimingNode::getTotalDownstreamCap());
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}
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double ElectricalNet::getMaxUpstreamRes() const
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{
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return m_distributed_res_ + ElectricalTimingNode::getMaxUpstreamRes();
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}
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double ElectricalNet::getTotalDownstreamCap() const
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{
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return m_distributed_cap_ + ElectricalTimingNode::getTotalDownstreamCap();
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}
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void ElectricalNet::setDistributedCap(double distributed_cap_)
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{
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m_distributed_cap_ = distributed_cap_;
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return;
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}
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void ElectricalNet::setDistributedRes(double distributed_res_)
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{
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m_distributed_res_ = distributed_res_;
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return;
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}
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double ElectricalNet::getDistributedCap() const
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{
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return m_distributed_cap_;
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}
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double ElectricalNet::getDistributedRes() const
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{
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return m_distributed_res_;
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}
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bool ElectricalNet::isNet() const
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{
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return true;
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}
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} // namespace DSENT
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