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#include "utils.h"
#include "definitions.h"
#include <catch2/catch_test_macros.hpp>
TEST_CASE("Parse arbitrary fields # one", "[utils]")
{
int tag, index, offset;
int address = 0b0001010101;
get_cache_fields(address, &tag, &index, &offset);
CHECK(tag == 0b000);
CHECK(index == 0b10101);
CHECK(offset == 0b01);
}
TEST_CASE("Parse arbitrary fields # two", "[utils]")
{
int tag, index, offset;
int address = 0b0100111011;
get_cache_fields(address, &tag, &index, &offset);
CHECK(tag == 0b010);
CHECK(index == 0b01110);
CHECK(offset == 0b11);
}
TEST_CASE("Parse invalid type", "[utils]")
{
signed int s1 = 0, s2 = 0, s3 = 0;
unsigned int type = 0, opcode = 0;
s1 = 0x00FF00FF;
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("Parse arbitrary r-type # one", "[utils]")
{
signed int s1 = 0, s2 = 0, s3 = 0;
unsigned int type = 0, opcode = 0;
s1 = 0xCCCCCCCC;
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("Parse arbitrary r-type # two", "[utils]")
{
signed int s1 = 0, s2 = 0, s3 = 0;
unsigned int type = 0, opcode = 0;
s1 = 0x99AABBCC;
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("Parse arbitrary i-type # one", "[utils]")
{
signed int s1 = 0, s2 = 0, s3 = 0;
unsigned int type = 0, opcode = 0;
s1 = 0xDDDDDDDD;
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("Parse arbitrary i-type # two", "[utils]")
{
signed int s1 = 0, s2 = 0, s3 = 0;
unsigned int type = 0, opcode = 0;
s1 = 0xAABBCCDD;
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("Parse arbitrary j-type # one", "[utils]")
{
signed int s1 = 0, s2 = 0, s3 = 0;
unsigned int type = 0, opcode = 0;
s1 = 0xEEEEEEEE;
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("Parse arbitrary j-type # two", "[utils]")
{
signed int s1 = 0, s2 = 0, s3 = 0;
unsigned int type = 0, opcode = 0;
s1 = 0xBBCCDDEE;
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);
}
TEST_CASE("wrap address outside upper bound", "[utils]")
{
int address = MEM_WORDS + 25;
int wrapped = wrap_address(address);
REQUIRE(wrapped == 25);
}
TEST_CASE("wrap address inside upper bound", "[utils]")
{
int address = MEM_WORDS - 25;
int wrapped = wrap_address(address);
REQUIRE(wrapped == MEM_WORDS - 25);
}
TEST_CASE("wrap address at upper bound", "[utils]")
{
int address = MEM_WORDS;
int wrapped = wrap_address(address);
REQUIRE(wrapped == 0);
}
TEST_CASE("wrap address lower than 0 with magnitude lesser than mem size", "[utils]")
{
int address = -10;
int wrapped = wrap_address(address);
REQUIRE(wrapped == MEM_WORDS - 10);
}
TEST_CASE("wrap address lower than 0 but with magnitude greater than mem size", "[utils]")
{
int address = -(MEM_WORDS + 10);
int wrapped = wrap_address(address);
REQUIRE(wrapped == MEM_WORDS - 10);
}
TEST_CASE("wrap address at 0", "[utils]")
{
int address = 0;
int wrapped = wrap_address(address);
REQUIRE(wrapped == 0);
}
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