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risc-v-tlm
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changed C array to std::array

This commit is contained in:
Màrius Montón 2021-11-09 11:15:36 +01:00
parent 49e17203c2
commit de1aa4c7a6
2 changed files with 16 additions and 21 deletions
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2
inc/Memory.h
View File

@ -65,7 +65,7 @@ private:
/**
* @brief Memory array in bytes
*/
uint8_t *mem;
std::array<uint8_t, Memory::SIZE> mem{};
/**
* @brief Log class

35
src/Memory.cpp
View File

@ -16,9 +16,6 @@ Memory::Memory(sc_core::sc_module_name const &name, std::string const &filename)
socket.register_get_direct_mem_ptr(this, &Memory::get_direct_mem_ptr);
socket.register_transport_dbg(this, &Memory::transport_dbg);
mem = new uint8_t[SIZE];
//memset(mem, 0, SIZE*sizeof(uint8_t));
memory_offset = 0;
program_counter = 0;
readHexFile(filename);
@ -35,15 +32,11 @@ Memory::Memory(sc_core::sc_module_name const& name) :
memory_offset = 0;
program_counter = 0;
mem = new uint8_t[SIZE];
log = Log::getInstance();
log->SC_log(Log::INFO) << "Memory instantiated without file" << std::endl;
}
Memory::~Memory() {
delete[] mem;
}
Memory::~Memory() = default;
uint32_t Memory::getPCfromHEX() {
return program_counter;
@ -61,7 +54,7 @@ void Memory::b_transport(tlm::tlm_generic_payload &trans,
// *********************************************
// Generate the appropriate error response
// *********************************************
if (adr >= sc_dt::uint64(SIZE)) {
if (adr >= sc_dt::uint64(Memory::SIZE)) {
trans.set_response_status(tlm::TLM_ADDRESS_ERROR_RESPONSE);
return;
}
@ -76,10 +69,11 @@ void Memory::b_transport(tlm::tlm_generic_payload &trans,
// Obliged to implement read and write commands
if (cmd == tlm::TLM_READ_COMMAND)
memcpy(ptr, &mem[adr], len);
else if (cmd == tlm::TLM_WRITE_COMMAND)
memcpy(&mem[adr], ptr, len);
if (cmd == tlm::TLM_READ_COMMAND) {
std::copy_n(mem.cbegin() + adr, len, ptr);
} else if (cmd == tlm::TLM_WRITE_COMMAND) {
std::copy_n(ptr, len, mem.begin() + adr);
}
// Illustrates that b_transport may block
//sc_core::wait(delay);
@ -116,7 +110,7 @@ bool Memory::get_direct_mem_ptr(tlm::tlm_generic_payload &trans,
// Set other details of DMI region
dmi_data.set_dmi_ptr(reinterpret_cast<unsigned char*>(&mem[0]));
dmi_data.set_start_address(0);
dmi_data.set_end_address(SIZE * 4 - 1);
dmi_data.set_end_address(Memory::SIZE * 4 - 1);
dmi_data.set_read_latency(LATENCY);
dmi_data.set_write_latency(LATENCY);
@ -129,18 +123,19 @@ unsigned int Memory::transport_dbg(tlm::tlm_generic_payload &trans) {
unsigned char *ptr = trans.get_data_ptr();
unsigned int len = trans.get_data_length();
if (adr >= sc_dt::uint64(SIZE)) {
if (adr >= sc_dt::uint64(Memory::SIZE)) {
trans.set_response_status(tlm::TLM_ADDRESS_ERROR_RESPONSE);
return 0;
}
// Calculate the number of bytes to be actually copied
unsigned int num_bytes = (len < (SIZE - adr) * 4) ? len : (SIZE - adr) * 4;
unsigned int num_bytes = (len < (Memory::SIZE - adr) * 4) ? len : (Memory::SIZE - adr) * 4;
if (cmd == tlm::TLM_READ_COMMAND)
memcpy(ptr, &mem[adr], num_bytes);
else if (cmd == tlm::TLM_WRITE_COMMAND)
memcpy(&mem[adr], ptr, num_bytes);
if (cmd == tlm::TLM_READ_COMMAND) {
std::copy_n(mem.cbegin() + adr, len, ptr);
} else if (cmd == tlm::TLM_WRITE_COMMAND) {
std::copy_n(ptr, len, mem.begin() + adr);
}
return num_bytes;
}