Help me about routing example

[VanTeo]

I have an example of systemc which implements "and" function. I have assigned 4 value for input signal but it have implemented only 1 value.

help me please!

#define SC_INCLUDE_DYNAMIC_PROCESSES

#include "systemc"
using namespace sc_core;
using namespace sc_dt;
using namespace std;

#include "tlm.h"
#include "tlm_utils/simple_initiator_socket.h"
#include "tlm_utils/simple_target_socket.h"
#include "Initiator.h"
#include "Memory.h"
#include "Router.h"

unsigned int Memory::mem_nr = 0;

int sc_main(int argc, char* argv[])
{
  Initiator* initiator;
  Router<4>* router;
  Memory*    memory[4];

  initiator = new Initiator("initiator");
  router    = new Router<4>("router");
    for (int i = 0; i < 4; i++)
    {
      char txt[20];
      sprintf(txt, "memory_%d", i);
      memory[i]   = new Memory(txt);
    }

    // Bind sockets
    initiator->socket.bind( router->target_socket );
    for (int i = 0; i < 4; i++) 
		router->initiator_socket[i]->bind( memory[i]->socket );

	sc_signal<bool> a, b, c, d;

	sc_time t(100, SC_PS);

	initiator->a(a);
	initiator->b(;
	initiator->c(c);

  //memory.d(d);

	sc_trace_file *wf = sc_create_vcd_trace_file("and2");
	sc_trace(wf, initiator->a, "a");
	sc_trace(wf, initiator->b, "b");
	sc_trace(wf, initiator->c, "c");
	//sc_trace_file(wf, memory.d, "d");

	a.write(0);
	b.write(0);

	sc_start(t);
	a.write(0);
	b.write(1);

	sc_start(t);
	a.write(1);
	b.write(0);

	sc_start(t);
	a.write(1);
	b.write(1);

	sc_start(t);
	a.write(0);
	b.write(0);

	sc_start();
	sc_stop();

	sc_close_vcd_trace_file(wf);
	return 0;
}

#define SC_INCLUDE_DYNAMIC_PROCESSES

#include "systemc"
using namespace sc_core;
using namespace sc_dt;
using namespace std;

#include "tlm.h"
#include "tlm_utils/simple_initiator_socket.h"
#include "tlm_utils/simple_target_socket.h"

struct Initiator: sc_module
{
  tlm_utils::simple_initiator_socket<Initiator> socket;

  sc_in<bool> a, b;
  sc_out<bool> c;

  SC_CTOR(Initiator)
  : socket("socket")
  {
    SC_THREAD(thread_process);
	sensitive << a << b;
  }

  void thread_process()
  {
	  bool c_temp;
	  int data;
	  while(true)
	  {
		  wait();
		  c_temp = a.read()&b.read();
		  c.write(c_temp);
		  data = 0xFF000030 | c_temp;

		  tlm::tlm_generic_payload* trans = new tlm::tlm_generic_payload;
		  sc_time delay = sc_time(10, SC_NS);

		  tlm::tlm_command cmd = tlm::TLM_WRITE_COMMAND;
  
		  trans->set_command( cmd );
		  trans->set_address( 100 );
		  trans->set_data_ptr( reinterpret_cast<unsigned char*>(&data) );
		  trans->set_data_length( 4 );
		  trans->set_streaming_width( 4 ); // = data_length to indicate no streaming
		  trans->set_byte_enable_ptr( 0 ); // 0 indicates unused
		  trans->set_dmi_allowed( false ); // Mandatory initial value
		  trans->set_response_status( tlm::TLM_INCOMPLETE_RESPONSE ); // Mandatory initial value

		  socket->b_transport( *trans, delay );  // Blocking transport call

		  if ( trans->is_response_error() )
		  {
			  char txt[100];
			  sprintf(txt, "Error from b_transport, response status = %s", trans->get_response_string().c_str());
			  SC_REPORT_ERROR("TLM-2", txt);
		  }
		  
		  cout << " a = " << hex << a << " , b = " << hex << b << " , c_temp = " <<  hex << c_temp << " , c = " << hex << c << " , data = " << hex << data << " , " << sc_time_stamp() << endl;
	  }
  }
};

#define SC_INCLUDE_DYNAMIC_PROCESSES

#include "systemc"
using namespace sc_core;
using namespace sc_dt;
using namespace std;

#include "tlm.h"
#include "tlm_utils/simple_initiator_socket.h"
#include "tlm_utils/simple_target_socket.h"

template<unsigned int N_TARGETS>
struct Router: sc_module
{
  tlm_utils::simple_target_socket<Router> target_socket;

  tlm_utils::simple_initiator_socket_tagged<Router>* initiator_socket[N_TARGETS];

  SC_CTOR(Router)
  : target_socket("target_socket")
  {
    target_socket.register_b_transport(this, &Router::b_transport);

    for (unsigned int i = 0; i < N_TARGETS; i++)
    {
      char txt[20];
      sprintf(txt, "socket_%d", i);
      initiator_socket[i] = new tlm_utils::simple_initiator_socket_tagged<Router>(txt);
    }
  }

  virtual void b_transport( tlm::tlm_generic_payload& trans, sc_time& delay )
  {
    sc_dt::uint64 address = trans.get_address();
    unsigned int target_nr = static_cast<unsigned int>( (address >> 6) & 0x3 );

    trans.set_address( address );

    ( *initiator_socket[target_nr] )->b_transport( trans, delay );
	cout << "address = " << address << " , target_nr = " << target_nr <<endl;
  }

  /*inline unsigned int decode_address( sc_dt::uint64 address, sc_dt::uint64& masked_address )
  {
    unsigned int target_nr = static_cast<unsigned int>( (address >> 6) & 0x3 );
    masked_address = address & 0xFF;
    return target_nr;
  }

  inline sc_dt::uint64 compose_address( unsigned int target_nr, sc_dt::uint64 address)
  {
    return (target_nr << 6) | (address & 0xFF);
  }*/
};

#define SC_INCLUDE_DYNAMIC_PROCESSES

#include "systemc"
using namespace sc_core;
using namespace sc_dt;
using namespace std;

#include "tlm.h"
#include "tlm_utils/simple_initiator_socket.h"
#include "tlm_utils/simple_target_socket.h"

struct Memory: sc_module
{
  tlm_utils::simple_target_socket<Memory> socket;

  enum { SIZE = 256 };
  const sc_time LATENCY;

  SC_CTOR(Memory)
  : socket("socket"), LATENCY(10, SC_NS)
  {
    socket.register_b_transport(this, &Memory::b_transport);
    for (int i = 0; i < SIZE; i++)
      mem[i] = 0xAA000000;
  }

  virtual void b_transport( tlm::tlm_generic_payload& trans, sc_time& delay )
  {
    tlm::tlm_command cmd = trans.get_command();
    sc_dt::uint64    adr = trans.get_address() / 4;
    unsigned char*   ptr = trans.get_data_ptr();
    unsigned int     len = trans.get_data_length();
    unsigned char*   byt = trans.get_byte_enable_ptr();
    unsigned int     wid = trans.get_streaming_width();

   if (adr >= sc_dt::uint64(SIZE) || byt != 0 || len > 4 || wid < len)
      SC_REPORT_ERROR("TLM-2", "Target does not support given generic payload transaction");

    wait(delay);
    delay = SC_ZERO_TIME;

    if ( cmd == tlm::TLM_READ_COMMAND )
      memcpy(ptr, &mem[adr], len);
    else if ( cmd == tlm::TLM_WRITE_COMMAND )
      memcpy(&mem[adr], ptr, len);

    trans.set_response_status( tlm::TLM_OK_RESPONSE );

	cout << " ptr = " << hex << ptr << " , adr = " << hex << adr << " , mem[" << dec << adr << "] = " << hex << mem[adr] << endl;
  }

  //int d;
  int mem[SIZE];
};

[ai.asic]

Have you solve this issue yet?

Recently I have read some code about TLM2 which implement router function. And you can find it on edaplaygroud.com named TLM-2.0-Example6.

Wish it help.

[David Black]

The original question is 7 years old with a very unclear problem statement. The code is poorly commented, and probably did not receive a response because nobody understood what @VanTeo was trying to say. He likely found a solution elsewhere.

@ai.asicWhat is your problem? Please be very specific. If you have a question about an issue on EDAplayground, then fully specify the link.

[ai.asic]

Here is the link which I mentioned. https://www.edaplayground.com/x/2SaZ

@David Black

[nslmike]

On 7/13/2023 at 10:50 AM, ai.asic said:

Here is the link which I mentioned. https://www.edaplayground.com/x/2SaZ

@David Black

Hi 
I've tried your example, but it generates an error...:

In file included from initiator.h:4:0,
                 from top.h:4,
                 from testbench.cpp:30:
utilities.h:11:21: error: variable 'std::ofstream fout' has initializer but incomplete type
 static ofstream fout("output.txt");