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#include "id.h"
#include "cache.h"
#include "controller.h"
#include "dram.h"
#include "if.h"
#include "instrDTO.h"
#include <catch2/catch_test_macros.hpp>
class IDPipeFixture
{
public:
IDPipeFixture()
{
Dram *dr;
dr = new Dram(this->m_delay);
// 0xC00 is a nop
p = {0xC000, 0xC001, 0xC002, 0xC003};
dr->load(p);
this->c = new Cache(dr, this->c_delay);
IF *f = new IF(nullptr);
this->d = new ID(f);
this->ct = new Controller(this->d, this->c, true);
};
~IDPipeFixture()
{
delete this->ct;
delete this->c;
};
// /**
// * Requests something to do until it is received.
// */
// void fetch(InstrDTO &instr)
// {
// Response r = WAIT;
// while (r != OK) {
// r = this->ct->advance(instr);
// }
// }
int m_delay = 3;
int c_delay = 1;
std::vector<signed int> p;
Cache *c;
ID *d;
Controller *ct;
};
TEST_CASE_METHOD(IDPipeFixture, "Parse invalid type", "[utils]")
{
signed int s1 = 0, s2 = 0, s3 = 0;
unsigned int type = 0, opcode = 0;
s1 = 0x00FF00FF;
this->d->get_instr_fields(s1, s2, s3, type, opcode);
REQUIRE(type == 0b11);
// behavior does nothing
CHECK(s1 == 0x00FF00FF);
CHECK(s2 == 0b0);
CHECK(s3 == 0b0);
CHECK(opcode == 0b0);
}
TEST_CASE_METHOD(IDPipeFixture, "Parse arbitrary r-type # one", "[utils]")
{
signed int s1 = 0, s2 = 0, s3 = 0;
unsigned int type = 0, opcode = 0;
s1 = 0xCCCCCCCC;
this->d->get_instr_fields(s1, s2, s3, type, opcode);
REQUIRE(type == 0b00);
CHECK(s1 == 0b11001);
CHECK(s2 == 0b01100);
CHECK(s3 == 0b00110);
CHECK(opcode == 0b10011);
}
TEST_CASE_METHOD(IDPipeFixture, "Parse arbitrary r-type # two", "[utils]")
{
signed int s1 = 0, s2 = 0, s3 = 0;
unsigned int type = 0, opcode = 0;
s1 = 0x99AABBCC;
this->d->get_instr_fields(s1, s2, s3, type, opcode);
REQUIRE(type == 0b00);
CHECK(s1 == 0b10111);
CHECK(s2 == 0b01011);
CHECK(s3 == 0b10101);
CHECK(opcode == 0b10011);
}
TEST_CASE_METHOD(IDPipeFixture, "Parse arbitrary i-type # one", "[utils]")
{
signed int s1 = 0, s2 = 0, s3 = 0;
unsigned int type = 0, opcode = 0;
s1 = 0xDDDDDDDD;
this->d->get_instr_fields(s1, s2, s3, type, opcode);
REQUIRE(type == 0b01);
CHECK(s1 == 0b10111);
CHECK(s2 == 0b11011);
CHECK(s3 == 0xDDDD);
CHECK(opcode == 0b0111);
}
TEST_CASE_METHOD(IDPipeFixture, "Parse arbitrary i-type # two", "[utils]")
{
signed int s1 = 0, s2 = 0, s3 = 0;
unsigned int type = 0, opcode = 0;
s1 = 0xAABBCCDD;
this->d->get_instr_fields(s1, s2, s3, type, opcode);
REQUIRE(type == 0b01);
CHECK(s1 == 0b10011);
CHECK(s2 == 0b11001);
CHECK(s3 == 0xAABB);
CHECK(opcode == 0b0111);
}
TEST_CASE_METHOD(IDPipeFixture, "Parse arbitrary j-type # one", "[utils]")
{
signed int s1 = 0, s2 = 0, s3 = 0;
unsigned int type = 0, opcode = 0;
s1 = 0xEEEEEEEE;
this->d->get_instr_fields(s1, s2, s3, type, opcode);
REQUIRE(type == 0b10);
CHECK(s1 == 0b11011);
CHECK(s2 == 0b111011101110111011101);
CHECK(opcode == 0b1011);
// behavior does nothing
CHECK(s3 == 0b0);
}
TEST_CASE_METHOD(IDPipeFixture, "Parse arbitrary j-type # two", "[utils]")
{
signed int s1 = 0, s2 = 0, s3 = 0;
unsigned int type = 0, opcode = 0;
s1 = 0xBBCCDDEE;
this->d->get_instr_fields(s1, s2, s3, type, opcode);
REQUIRE(type == 0b10);
CHECK(s1 == 0b10111);
CHECK(s2 == 0b101110111100110011011);
CHECK(opcode == 0b1011);
// behavior does nothing
CHECK(s3 == 0b0);
}
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