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#include "controller.h"
#include "cache.h"
#include "dram.h"
#include "ex.h"
#include "id.h"
#include "if.h"
#include "mm.h"
#include "wb.h"
#include <algorithm>
#include <catch2/catch_test_macros.hpp>
#include <vector>
class ControllerPipeFixture
{
public:
ControllerPipeFixture()
{
this->d = new Dram(1);
this->c = new Cache(this->d, 0);
IF *f = new IF(nullptr);
ID *d = new ID(f);
EX *e = new EX(d);
MM *m = new MM(e);
WB *w = new WB(m);
this->stage_num = 5;
this->ct = new Controller(w, this->c, true);
}
~ControllerPipeFixture()
{
delete this->ct;
delete this->c;
};
void fill_pipe()
{
InstrDTO *i = nullptr;
int j;
for (j = 0; j < this->stage_num + 1; ++j) {
i = this->ct->advance(WAIT);
REQUIRE(i == nullptr);
}
}
int stage_num;
Cache *c;
Dram *d;
Controller *ct;
};
TEST_CASE_METHOD(
ControllerPipeFixture,
"Contructor resets gettable fields",
"[controller_pipe]")
{
std::array<int, GPR_NUM> gprs;
gprs = this->ct->get_gprs();
CHECK(this->ct->get_clock_cycle() == 1);
CHECK(std::all_of(
gprs.begin(), gprs.end(), [](int value) { return value == 0; }));
// change me later
CHECK(this->ct->get_pc() == 0);
}
TEST_CASE_METHOD(ControllerPipeFixture, "two num adder", "[full pipe]")
{
signed int b0, b1, b2, b3, b4, b5, b6, b7, b8, b9, b10, b11;
std::vector<signed int> p;
InstrDTO *i;
// I-TYPE / / / /
b0 = 0b00000010000000000001000000001101; // ADDI $sp $0 0x200;
b1 = 0b00000000000000010010100000001101; // ADDI $5 $0 0x1;
b2 = 0b00000000000000000001000101101101; // STORE $5 0($sp); (RAW HAZARD)!
// I-TYPE / / / /
b3 = 0b00000000000000100010100000001101; // ADDI $5 $0 0x2; (RAW HAZARD)!
b4 = 0b00000000000000010001000101101101; // STORE $5 1($sp); (RAW HAZARD)!
// // I-TYPE / / / /
// b9 = 0b00000000000000000010100000001101; // ADDI $5 $0 0x0;
// // I-TYPE / / / /
// b10 = 0b00000000000000110011000000001101; // ADDI $6 $0 0x3;
// // J-TYPE / / /
// b11 = 0b00000000000000000011100000001010; // jrl CHECK
p = {b0, b1, b2, b3};
this->d->load(p);
this->fill_pipe();
i = this->ct->advance(WAIT);
REQUIRE(i != nullptr);
CHECK(i->get_time_of(FETCH) == 3);
CHECK(i->get_time_of(DCDE) == 4);
CHECK(i->get_time_of(EXEC) == 5);
CHECK(i->get_time_of(MEM) == 6);
CHECK(i->get_time_of(WRITE) == 7);
CHECK(i->get_s1() == 0x200);
CHECK(i->get_s2() == 0x0);
CHECK(i->get_s3() == 0x200);
CHECK(this->ct->get_gprs().at(2) == 0x200);
CHECK(i->get_mnemonic() == ADDI);
CHECK(i->get_instr_bits() == b0);
delete i;
i = this->ct->advance(WAIT);
REQUIRE(i != nullptr);
CHECK(i->get_time_of(FETCH) == 4);
CHECK(i->get_time_of(DCDE) == 5);
CHECK(i->get_time_of(EXEC) == 6);
CHECK(i->get_time_of(MEM) == 7);
CHECK(i->get_time_of(WRITE) == 8);
CHECK(i->get_s1() == 0x1);
CHECK(i->get_s2() == 0x0);
CHECK(i->get_s3() == 0x1);
CHECK(this->ct->get_gprs().at(5) == 0x1);
CHECK(i->get_mnemonic() == ADDI);
CHECK(i->get_instr_bits() == b1);
delete i;
i = this->ct->advance(WAIT);
REQUIRE(i == nullptr);
i = this->ct->advance(WAIT);
REQUIRE(i == nullptr);
i = this->ct->advance(WAIT);
REQUIRE(i == nullptr);
i = this->ct->advance(WAIT);
REQUIRE(i == nullptr);
i = this->ct->advance(WAIT);
REQUIRE(i != nullptr);
CHECK(i->get_time_of(FETCH) == 5);
CHECK(i->get_time_of(DCDE) == 8); // the previous conflicting instruction wrote here!
CHECK(i->get_time_of(EXEC) == 9);
CHECK(i->get_time_of(MEM) == 12); // waited for fetch + 2 dram
CHECK(i->get_time_of(WRITE) == 13);
CHECK(i->get_s1() == 0x1);
CHECK(i->get_s2() == 0x200);
CHECK(i->get_s3() == 0x0);
// NO STORE
CHECK(this->ct->get_gprs().at(2) == 0x200);
CHECK(this->ct->get_gprs().at(5) == 0x1);
CHECK(i->get_mnemonic() == STORE);
CHECK(i->get_instr_bits() == b2);
delete i;
i = this->ct->advance(WAIT);
REQUIRE(i != nullptr);
CHECK(i->get_time_of(FETCH) == 8);
CHECK(i->get_time_of(DCDE) == 9);
CHECK(i->get_time_of(EXEC) == 12);
CHECK(i->get_time_of(MEM) == 13);
CHECK(i->get_time_of(WRITE) == 14);
CHECK(i->get_s1() == 0x2);
CHECK(i->get_s2() == 0x0);
CHECK(i->get_s3() == 0x2);
// NO STORE
CHECK(this->ct->get_gprs().at(5) == 0x2);
CHECK(i->get_mnemonic() == ADDI);
CHECK(i->get_instr_bits() == b3);
delete i;
}
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