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#include <bitstream_source.h>
#include <random>
#include <cstdlib>
using std::cout;
using std::endl;
unsigned int BitstreamSource::m_bits_per_value = 8;
//double BitstreamSource::m_output_jitter = 0.0;
void BitstreamSource::runner()
{
// Initialize random number generator
//mt19937 gen(m_seed);
//uniform_int_distribution<> dis(1, m_max_value); // uniform in [1, max]
//int operation_mode = 0; // 0: modulated source , 1: independent pulses
auto max_val = pow(2.0, m_bits_per_value) - 1;
cout << name() << ":" << endl;
cout << "signal on: " << m_signal_on << endl;
cout << "signal off: " << m_signal_off << endl;
cout << "bits: ";
cout << endl;
for(const auto &val : m_values) {
auto val_saturated = val;
if (m_current_value > max_val)
val_saturated = max_val;
for (unsigned int iBit = 0; iBit < m_bits_per_value; ++iBit) {
bool bit = val_saturated & (1 << iBit);
cout << bit;
}
}
cout << " --> " << (dynamic_cast<sc_signal<OpticalSignal> *>(p_out.get_interface()))->name();
cout << endl;
cout << endl;
// Loop over all values
for (unsigned int iVal = 0; iVal < m_values.size(); ++iVal) {
m_current_value = m_values[iVal];
if (m_current_value > max_val)
m_current_value = max_val;
for (unsigned int iBit = 0; iBit < m_bits_per_value; ++iBit) {
// Wait at least one clk cycle, and for enable to be high
do {
// Wait next clk edge
wait();
cout << "CLK tick (" << this->name() << ")" << endl;
} while (!p_enable->read());
// Deduce bit "value" from binary representation
// iBit = 0 represents LSB
bool bit = m_current_value & (1 << iBit);
// Initialize corresponding signal
auto s = (bit ? OpticalSignal(m_signal_on) :
OpticalSignal(m_signal_off));
s.getNewId(); // New Id is necessary to notify signal change
// Send signal to output with no delay
m_out_writer.delayedWrite(s, SC_ZERO_TIME);
}
}
// Wait for end of simulation
while (true) {
// Do nothing
wait();
}
}
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