risc-v-tlm/inc/Memory.h

80 lines
1.7 KiB
C++

/*!
\file Memory.h
\brief Basic TLM-2 memory model
\author Màrius Montón
\date August 2018
*/
#ifndef __MEMORY_H__
#define __MEMORY_H__
#include <iostream>
#include <fstream>
#define SC_INCLUDE_DYNAMIC_PROCESSES
#include "systemc"
#include "tlm.h"
#include "tlm_utils/simple_target_socket.h"
using namespace sc_core;
using namespace sc_dt;
using namespace std;
/**
* @brief Basic TLm-2 memory
*/
class Memory: sc_module {
public:
// TLM-2 socket, defaults to 32-bits wide, base protocol
tlm_utils::simple_target_socket<Memory> socket;
enum { SIZE = 1024 * 1024 * 16 };
const sc_time LATENCY;
Memory(sc_module_name name, string filename);
Memory(sc_module_name name, bool use_file);
/**
* @brief Returns Program Counter read from hexfile
* @return Initial PC
*/
virtual uint32_t getPCfromHEX();
// TLM-2 blocking transport method
virtual void b_transport( tlm::tlm_generic_payload& trans, sc_time& delay );
// *********************************************
// TLM-2 forward DMI method
// *********************************************
virtual bool get_direct_mem_ptr(tlm::tlm_generic_payload& trans,
tlm::tlm_dmi& dmi_data);
// *********************************************
// TLM-2 debug transport method
// *********************************************
virtual unsigned int transport_dbg(tlm::tlm_generic_payload& trans);
private:
/**
* @brief Memory array in bytes
*/
uint8_t mem[SIZE];
/**
* @brief Program counter (PC) read from hex file
*/
uint32_t program_counter;
/**
* @brief Read Intel hex file
* @param filename file name to read
*/
virtual void readHexFile(string filename);
};
#endif /* __MEMORY_H__ */