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// -*- mode: C++; c-file-style: "cc-mode" -*-
//=============================================================================
//
// Copyright 2001-2025 by Wilson Snyder. This program is free software; you can
// redistribute it and/or modify it under the terms of either the GNU
// Lesser General Public License Version 3 or the Perl Artistic License
// Version 2.0.
// SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
//
//=============================================================================
///
/// \file
/// \brief Verilated tracing in VCD format for SystemC header
///
/// User wrapper code should use this header when creating VCD SystemC traces.
///
/// This class is not threadsafe, as the SystemC kernel is not threadsafe.
///
//=============================================================================
#ifndef VERILATOR_VERILATED_VCD_SC_H_
#define VERILATOR_VERILATED_VCD_SC_H_
#include "verilatedos.h"
#include "verilated_sc_trace.h"
#include "verilated_vcd_c.h"
//=============================================================================
// VerilatedVcdSc
/// Trace file used to create VCD dump for SystemC version of Verilated models. It's very similar
/// to its C version (see the class VerilatedVcdC)
class VerilatedVcdSc final : VerilatedScTraceBase, public VerilatedVcdC {
// CONSTRUCTORS
VL_UNCOPYABLE(VerilatedVcdSc);
public:
VerilatedVcdSc() {
spTrace()->set_time_unit(VerilatedScTraceBase::getScTimeUnit());
spTrace()->set_time_resolution(VerilatedScTraceBase::getScTimeResolution());
VerilatedScTraceBase::enableDeltaCycles(false);
}
// METHODS
// Override VerilatedVcdC. Must be called after starting simulation.
void open(const char* filename) override VL_MT_SAFE {
VerilatedScTraceBase::checkScElaborationDone();
VerilatedVcdC::open(filename);
}
// METHODS - for SC kernel
// Called from SystemC kernel
void cycle() override { VerilatedVcdC::dump(sc_core::sc_time_stamp().to_double()); }
};
#endif // Guard
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