risc-v-tlm/inc/Memory.h

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/*!
\file Memory.h
\brief Basic TLM-2 memory model
\author Màrius Montón
\date August 2018
*/
// SPDX-License-Identifier: GPL-3.0-or-later
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#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"
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#include "Log.h"
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/**
* @brief Basic TLM-2 memory
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*/
class Memory: sc_core::sc_module {
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public:
// TLM-2 socket, defaults to 32-bits wide, base protocol
tlm_utils::simple_target_socket<Memory> socket;
//enum { SIZE = 0x90000000 };
enum {
SIZE = 0x10000000
};
const sc_core::sc_time LATENCY;
Memory(sc_core::sc_module_name const &name, std::string const &filename);
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explicit Memory(const sc_core::sc_module_name& name);
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~Memory() override;
/**
* @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_core::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);
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private:
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/**
* @brief Memory array in bytes
*/
uint8_t *mem;
/**
* @brief Log class
*/
Log *log;
/**
* @brief Program counter (PC) read from hex file
*/
uint32_t program_counter;
uint32_t memory_offset;
/**
* @brief Read Intel hex file
* @param filename file name to read
*/
void readHexFile(const std::string& filename);
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};
#endif /* __MEMORY_H__ */