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risc-v-tlm
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changed pointer by reference

This commit is contained in:
Màrius Montón 2021-11-16 10:26:42 +01:00
parent f7c9f47c3f
commit 61be24e608
2 changed files with 8 additions and 11 deletions
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3
inc/CPU.h
View File

@ -72,14 +72,13 @@ private:
Registers *register_bank;
Performance *perf;
Log *log;
Instruction *inst;
C_extension *c_inst;
M_extension *m_inst;
A_extension *a_inst;
BASE_ISA *exec;
tlm_utils::tlm_quantumkeeper *m_qk;
Instruction inst;
bool interrupt;
std::uint32_t int_cause;
bool irq_already_down;

16
src/CPU.cpp
View File

@ -9,7 +9,7 @@
SC_HAS_PROCESS(CPU);
CPU::CPU(sc_core::sc_module_name const &name, std::uint32_t PC, bool debug) :
sc_module(name), instr_bus("instr_bus"), default_time(10,
sc_module(name), instr_bus("instr_bus"), inst(0), default_time(10,
sc_core::SC_NS), INSTR(0) {
register_bank = new Registers();
mem_intf = new MemoryInterface();
@ -18,7 +18,7 @@ CPU::CPU(sc_core::sc_module_name const &name, std::uint32_t PC, bool debug) :
log = Log::getInstance();
register_bank->setPC(PC);
register_bank->setValue(Registers::sp, (0x10000000 / 4) - 1);
register_bank->setValue(Registers::sp, (Memory::SIZE / 4) - 1);
irq_line_socket.register_b_transport(this, &CPU::call_interrupt);
interrupt = false;
@ -30,7 +30,6 @@ CPU::CPU(sc_core::sc_module_name const &name, std::uint32_t PC, bool debug) :
instr_bus.register_invalidate_direct_mem_ptr(this,
&CPU::invalidate_direct_mem_ptr);
inst = new Instruction(0);
exec = new BASE_ISA(0, register_bank, mem_intf);
c_inst = new C_extension(0, register_bank, mem_intf);
m_inst = new M_extension(0, register_bank, mem_intf);
@ -55,7 +54,6 @@ CPU::CPU(sc_core::sc_module_name const &name, std::uint32_t PC, bool debug) :
CPU::~CPU() {
delete register_bank;
delete mem_intf;
delete inst;
delete exec;
delete c_inst;
delete m_inst;
@ -67,7 +65,7 @@ bool CPU::cpu_process_IRQ() {
std::uint32_t csr_temp;
bool ret_value = false;
if (interrupt) {
if (interrupt) {
csr_temp = register_bank->getCSR(CSR_MSTATUS);
if ((csr_temp & MSTATUS_MIE) == 0) {
log->SC_log(Log::DEBUG) << "interrupt delayed" << std::endl;
@ -119,7 +117,7 @@ bool CPU::CPU_step() {
/* Get new PC value */
if (dmi_ptr_valid) {
/* if memory_offset at Memory module is set, this won't work */
memcpy(&INSTR, dmi_ptr + register_bank->getPC(), 4);
std::memcpy(&INSTR, dmi_ptr + register_bank->getPC(), 4);
} else {
sc_core::sc_time delay = sc_core::SC_ZERO_TIME;
tlm::tlm_dmi dmi_data;
@ -143,11 +141,11 @@ bool CPU::CPU_step() {
log->SC_log(Log::INFO) << "PC: 0x" << std::hex << register_bank->getPC()
<< ". ";
inst->setInstr(INSTR);
inst.setInstr(INSTR);
bool breakpoint = false;
/* check what type of instruction is and execute it */
switch (inst->check_extension()) {
switch (inst.check_extension()) {
[[likely]] case BASE_EXTENSION:
PC_not_affected = exec->process_instruction(inst, &breakpoint);
if (PC_not_affected) {
@ -174,7 +172,7 @@ bool CPU::CPU_step() {
break;
[[unlikely]] default:
std::cout << "Extension not implemented yet" << std::endl;
inst->dump();
inst.dump();
exec->NOP();
}