test.cc

SystemC片上系统设计的源代码： 书籍介绍： SystemC是被实践证明的优秀的系统设计描述语言

#include "scv.h"
#include "packet.h"

SC_MODULE(sctop) {
  SC_CTOR(sctop);
};

// nbcode "decl" start
sctop::sctop(sc_module_name name) : sc_module(name)
{
  // Create a sparse packet array
  packetT defaultPacket;
  sc_int<64> upper_bound;
  upper_bound = (long long) 1 << 63 - 1;
  const sc_int<64> lower_bound = -(upper_bound+1);
  scv_sparse_array< sc_int<64>, packetT >
    packets("packets", defaultPacket,
            lower_bound, upper_bound);
  // nbcode "decl" end

  // nbcode "index" start
  // Create an index to the sparse packet array
  scv_smart_ptr< sc_int<64> > index;
  const sc_int<64> low = sc_int<64>(-1e3);
  const sc_int<64> high = sc_int<64>(-1e2);
  index->keep_only(low, high);  // Only 901 possible values
  // nbcode "index" end

  // nbcode "create" start
  // Create packets and copy into array
  scv_smart_ptr<packetT> packet;
  packet->length.keep_only(10,1024);
  for (unsigned int i=0; i<10; ++i) {
    packet->src.next();
    packet->dest.next();
    packet->length.next();
    for(unsigned int j=0; j<packet->length; j++) {
      packet->payload[j].next();
    }
    index->next();
    packets[index->read()] = *packet;  // Uses equal operator
  }
  // nbcode "create" end
      
  // nbcode "histo" start
  // Iterate through the range looking for packets in the
  // sparse array
  const unsigned int packetsPerLine = 50;
  unsigned int count = 0;
  for (sc_int<64> i=low; i<=high; i++) {
    if (count == 0) {
      scv_out << setw(6) << i << ": ";
    }
    if (packets[i] == defaultPacket) { // uses packetT == operator
      scv_out << ".";
    } else {
      scv_out << "*";
    }
    if (++count == packetsPerLine) {
      scv_out << endl;
      count = 0;
    }
  }
  // nbcode "histo" end

  // nbcode "contents" start
  // Iterate through again, this time printing each packet
  scv_out << endl << endl;
  for (sc_int<64> i=low; i<=high; i++) {
    if (packets[i] != defaultPacket) { // uses packetT == operator
      // Uses output operator
      scv_out << setw(6) << i << ": " << packets[i] << endl;
    }
  }
  scv_out << endl;
}
// nbcode "contents" end

int sc_main(int argc, char** argv) {
  sctop top("top");  //for osci
  sc_start();
  return 0;
}