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#include "id.h"
#include "cache.h"
#include "controller.h"
#include "dram.h"
#include "dum.h"
#include "instr.h"
#include "instrDTO.h"
#include <catch2/catch_test_macros.hpp>
class IDFixture
{
public:
IDFixture()
{
this->dr = new Dram(3);
this->c = new Cache(this->dr, 5, 0, 1);
this->dum = new DUM(nullptr);
this->d = new ID(dum);
this->ct = new Controller(this->d, this->c, true);
};
~IDFixture()
{
delete this->ct;
delete this->c;
};
InstrDTO *decode_bits(signed int raw)
{
InstrDTO *i = new InstrDTO();
i->slot_A = raw;
this->dum->set_curr_instr(i);
i = this->ct->advance(READY);
REQUIRE(i == nullptr);
i = this->ct->advance(READY);
REQUIRE(i != nullptr);
return i;
}
signed int encode_R_type(
signed int s3,
signed int s2,
signed int s1,
signed int opcode,
signed int type)
{
signed int t;
t = s3;
t = (t << REG_SIZE) + s2;
t = (t << REG_SIZE) + s1;
t = (t << R_OPCODE_SIZE) + opcode;
t = (t << TYPE_SIZE) + type;
return t;
}
signed int encode_I_type(
signed int s3,
signed int s2,
signed int s1,
signed int opcode,
signed int type)
{
signed int t;
t = s3;
t = (t << REG_SIZE) + s2;
t = (t << REG_SIZE) + s1;
t = (t << OPCODE_SIZE) + opcode;
t = (t << TYPE_SIZE) + type;
return t;
}
signed int encode_J_type(
signed int s2, signed int s1, signed int opcode, signed int type)
{
signed int t;
t = s2;
t = (t << REG_SIZE) + s1;
t = (t << OPCODE_SIZE) + opcode;
t = (t << TYPE_SIZE) + type;
return t;
}
Dram *dr;
Cache *c;
ID *d;
DUM *dum;
Controller *ct;
};
TEST_CASE_METHOD(IDFixture, "Parse invalid type", "[id]")
{
signed int t;
InstrDTO *i;
t = this->encode_R_type(0b0, 0b1, 0b10, 0b11, 0b11);
i = this->decode_bits(t);
CHECK(i->mnemonic == NOP);
delete i;
}
TEST_CASE_METHOD(IDFixture, "Parse arbitrary r-type # one", "[id]")
{
signed int t;
InstrDTO *i;
t = this->encode_R_type(0b101, 0b110, 0b111, 0b11, 0b0);
i = this->decode_bits(t);
CHECK(i->operands.integer.slot_one == 0x00000000); // registers are empty
CHECK(i->operands.integer.slot_two == 0x00000000);
CHECK(i->operands.integer.slot_three == 0x00000000);
CHECK(i->mnemonic == MUL);
delete i;
}
TEST_CASE_METHOD(IDFixture, "Parse arbitrary r-type # two", "[id]")
{
signed int t;
InstrDTO *i;
t = this->encode_R_type(0b1000, 0b01000, 0b00100, 0b10, 0b0);
i = this->decode_bits(t);
CHECK(i->operands.integer.slot_one == 0x00000000); // registers are empty
CHECK(i->operands.integer.slot_two == 0x00000000);
CHECK(i->operands.integer.slot_three == 0x00000000);
CHECK(i->mnemonic == SUB);
delete i;
}
TEST_CASE_METHOD(IDFixture, "Parse arbitrary i-type # one", "[id]")
{
signed int t;
InstrDTO *i;
t = this->encode_I_type(0xF, 0b101, 0b110, 0b0111, 0b1);
i = this->decode_bits(t);
CHECK(i->operands.integer.slot_one == 0x00000000); // registers are empty
CHECK(i->operands.integer.slot_two == 0x00000000);
CHECK(i->operands.integer.slot_three == 0xF);
CHECK(i->mnemonic == ANDI);
delete i;
}
TEST_CASE_METHOD(IDFixture, "Parse arbitrary i-type # two", "[id]")
{
signed int t;
InstrDTO *i;
t = this->encode_I_type(0xCC, 0b10101, 0b00110, 0b11011, 0b1);
i = this->decode_bits(t);
CHECK(i->operands.integer.slot_one == 0x00000000); // registers are empty
CHECK(i->operands.integer.slot_two == 0x00000000);
CHECK(i->operands.integer.slot_three == 0xCC);
CHECK(i->mnemonic == STOREV);
delete i;
}
TEST_CASE_METHOD(IDFixture, "Parse arbitrary j-type # one", "[id]")
{
signed int t;
InstrDTO *i;
t = this->encode_J_type(0x3456, 0b101, 0b0111, 0b10);
i = this->decode_bits(t);
CHECK(i->operands.integer.slot_one == 0x00000000); // registers are empty
CHECK(i->operands.integer.slot_two == 0x3456);
CHECK(i->mnemonic == BOF);
delete i;
}
TEST_CASE_METHOD(IDFixture, "Parse arbitrary j-type # two", "[id]")
{
signed int t;
InstrDTO *i;
t = this->encode_J_type(0xBBCCF, 0b00101, 0b0011, 0b10);
i = this->decode_bits(t);
t = 0xFFFBBCCF;
CHECK(i->operands.integer.slot_one == 0x00000000); // registers are empty
CHECK(i->operands.integer.slot_two == t);
CHECK(i->mnemonic == JAL);
delete i;
}
TEST_CASE_METHOD(IDFixture, "read does not conflict with read", "[id]")
{
signed int v;
Response r;
v = 0b1;
r = this->d->read_guard(v);
CHECK(v == 0b0);
REQUIRE(r == OK);
v = 0b1;
this->d->read_guard(v);
REQUIRE(v == 0b0);
}
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