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ParallelDelayCalc 

Signed-off-by: James Cherry <cherry@parallaxsw.com>
This commit is contained in:
James Cherry 2024-01-29 20:48:00 -07:00
parent 0d8ffda061
commit 7bed384fce
2 changed files with 13 additions and 12 deletions
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13
dcalc/ParallelDelayCalc.cc
View File

@ -69,17 +69,14 @@ ParallelDelayCalc::gateDelaysParallel(ArcDcalcArgSeq &dcalc_args,
const TimingArc *arc = dcalc_arg.arc();
Slew in_slew = dcalc_arg.inSlew();
ArcDcalcResult intrinsic_result =
arc_delay_calc_->gateDelay(drvr_pin, arc, in_slew, 0.0, nullptr,
load_pin_index_map, dcalc_ap);
ArcDcalcResult intrinsic_result = gateDelay(drvr_pin, arc, in_slew, 0.0, nullptr,
load_pin_index_map, dcalc_ap);
ArcDelay intrinsic_delay = intrinsic_result.gateDelay();
intrinsic_delays[drvr_idx] = intrinsic_result.gateDelay();
ArcDcalcResult gate_result = arc_delay_calc_->gateDelay(drvr_pin, arc,
in_slew, load_cap,
dcalc_arg.parasitic(),
load_pin_index_map,
dcalc_ap);
ArcDcalcResult gate_result = gateDelay(drvr_pin, arc, in_slew, load_cap,
dcalc_arg.parasitic(),
load_pin_index_map, dcalc_ap);
ArcDelay gate_delay = gate_result.gateDelay();
Slew drvr_slew = gate_result.drvrSlew();
ArcDelay load_delay = gate_delay - intrinsic_delay;

12
liberty/TableModel.cc
View File

@ -1794,10 +1794,14 @@ OutputWaveforms::voltageTime1(float voltage,
FloatSeq *voltage_times = voltage_times_[wave_index];
float volt_step = vdd_ / voltage_waveform_step_count_;
size_t volt_idx = voltage / volt_step;
float time0 = (*voltage_times)[volt_idx];
float time1 = (*voltage_times)[volt_idx + 1];
float time = time0 + (time1 - time0) * (voltage - volt_step * volt_idx);
return time;
if (volt_idx >= voltage_times->size() - 1)
return (*voltage_times)[voltage_times->size() - 1];
else {
float time0 = (*voltage_times)[volt_idx];
float time1 = (*voltage_times)[volt_idx + 1];
float time = time0 + (time1 - time0) * (voltage - volt_step * volt_idx);
return time;
}
}
void