220 lines
6.5 KiB
C++
220 lines
6.5 KiB
C++
#include "gtest/gtest.h"
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#include "../src/machine.h"
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#include "../src/program.h"
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#include <memory>
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#include <vector>
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using namespace std;
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const uint8_t TAX = 0xAA;
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const uint8_t TXA = 0x8A;
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const uint8_t DEX = 0xCA;
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const uint8_t INX = 0xE8;
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const uint8_t TAY = 0xA8;
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const uint8_t TYA = 0x98;
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const uint8_t DEY = 0x88;
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const uint8_t INY = 0xC8;
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unique_ptr<Machine> rt_get_machine(shared_ptr<vector<uint8_t>> code) {
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auto program = make_shared<Program>(Program(code));
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auto machine = make_unique<Machine>(Machine(program));
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return machine;
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}
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TEST(RegisterOpcodeHandler, TransferAtoX) {
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auto code = make_shared<vector<uint8_t>>(vector<uint8_t>{TAX});
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auto machine = rt_get_machine(code);
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auto reg_man = machine->get_reg_man();
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auto aval = reg_man->get_accumulator()->get_value();
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auto xval = reg_man->get_x_index()->get_value();
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ASSERT_EQ(0, aval);
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ASSERT_EQ(0, xval);
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machine->execute();
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aval = reg_man->get_accumulator()->get_value();
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xval = reg_man->get_x_index()->get_value();
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ASSERT_EQ(0, aval);
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ASSERT_EQ(0, xval);
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reg_man->get_program_counter()->set_value(0);
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reg_man->get_accumulator()->set_value(0x3e);
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machine->execute();
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aval = reg_man->get_accumulator()->get_value();
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xval = reg_man->get_x_index()->get_value();
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ASSERT_EQ(0x3e, aval);
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ASSERT_EQ(0x3e, xval);
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}
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TEST(RegisterOpcodeHandler, TransferXtoA) {
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auto code = make_shared<vector<uint8_t>>(vector<uint8_t>{TXA});
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auto machine = rt_get_machine(code);
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auto reg_man = machine->get_reg_man();
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auto aval = reg_man->get_accumulator()->get_value();
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auto xval = reg_man->get_x_index()->get_value();
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ASSERT_EQ(0, aval);
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ASSERT_EQ(0, xval);
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machine->execute();
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aval = reg_man->get_accumulator()->get_value();
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xval = reg_man->get_x_index()->get_value();
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ASSERT_EQ(0, aval);
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ASSERT_EQ(0, xval);
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reg_man->get_program_counter()->set_value(0);
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reg_man->get_x_index()->set_value(0x4f);
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machine->execute();
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aval = reg_man->get_accumulator()->get_value();
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xval = reg_man->get_x_index()->get_value();
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ASSERT_EQ(0x4f, aval);
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ASSERT_EQ(0x4f, xval);
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}
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TEST(RegisterOpcodeHandler, DecrementX) {
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auto code = make_shared<vector<uint8_t>>(vector<uint8_t>{DEX});
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auto machine = rt_get_machine(code);
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auto reg_man = machine->get_reg_man();
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auto xval = reg_man->get_x_index()->get_value();
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ASSERT_EQ(0, xval);
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machine->execute();
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xval = reg_man->get_x_index()->get_value();
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ASSERT_EQ(0xff, xval);
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reg_man->get_program_counter()->set_value(0);
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machine->execute();
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xval = reg_man->get_x_index()->get_value();
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ASSERT_EQ(0xfe, xval);
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reg_man->get_program_counter()->set_value(0);
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reg_man->get_x_index()->set_value(0x45);
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machine->execute();
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xval = reg_man->get_x_index()->get_value();
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ASSERT_EQ(0x44, xval);
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}
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TEST(RegisterOpcodeHandler, IncrementX) {
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auto code = make_shared<vector<uint8_t>>(vector<uint8_t>{INX});
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auto machine = rt_get_machine(code);
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auto reg_man = machine->get_reg_man();
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auto xval = reg_man->get_x_index()->get_value();
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ASSERT_EQ(0, xval);
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machine->execute();
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xval = reg_man->get_x_index()->get_value();
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ASSERT_EQ(0x01, xval);
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reg_man->get_program_counter()->set_value(0);
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machine->execute();
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xval = reg_man->get_x_index()->get_value();
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ASSERT_EQ(0x02, xval);
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reg_man->get_program_counter()->set_value(0);
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reg_man->get_x_index()->set_value(0x45);
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machine->execute();
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xval = reg_man->get_x_index()->get_value();
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ASSERT_EQ(0x46, xval);
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}
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TEST(RegisterOpcodeHandler, TransferAtoY) {
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auto code = make_shared<vector<uint8_t>>(vector<uint8_t>{TAY});
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auto machine = rt_get_machine(code);
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auto reg_man = machine->get_reg_man();
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auto aval = reg_man->get_accumulator()->get_value();
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auto yval = reg_man->get_y_index()->get_value();
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ASSERT_EQ(0, aval);
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ASSERT_EQ(0, yval);
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machine->execute();
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aval = reg_man->get_accumulator()->get_value();
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yval = reg_man->get_y_index()->get_value();
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ASSERT_EQ(0, aval);
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ASSERT_EQ(0, yval);
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reg_man->get_program_counter()->set_value(0);
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reg_man->get_accumulator()->set_value(0xaf);
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machine->execute();
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aval = reg_man->get_accumulator()->get_value();
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yval = reg_man->get_y_index()->get_value();
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ASSERT_EQ(0xaf, aval);
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ASSERT_EQ(0xaf, yval);
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}
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TEST(RegisterOpcodeHandler, TransferYtoA) {
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auto code = make_shared<vector<uint8_t>>(vector<uint8_t>{TYA});
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auto machine = rt_get_machine(code);
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auto reg_man = machine->get_reg_man();
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auto aval = reg_man->get_accumulator()->get_value();
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auto yval = reg_man->get_y_index()->get_value();
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ASSERT_EQ(0, aval);
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ASSERT_EQ(0, yval);
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machine->execute();
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aval = reg_man->get_accumulator()->get_value();
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yval = reg_man->get_y_index()->get_value();
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ASSERT_EQ(0, aval);
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ASSERT_EQ(0, yval);
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reg_man->get_program_counter()->set_value(0);
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reg_man->get_y_index()->set_value(0xff);
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machine->execute();
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aval = reg_man->get_accumulator()->get_value();
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yval = reg_man->get_y_index()->get_value();
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ASSERT_EQ(0xff, aval);
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ASSERT_EQ(0xff, yval);
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}
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TEST(RegisterOpcodeHandler, DecrementY) {
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auto code = make_shared<vector<uint8_t>>(vector<uint8_t>{DEY});
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auto machine = rt_get_machine(code);
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auto reg_man = machine->get_reg_man();
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auto yval = reg_man->get_y_index()->get_value();
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ASSERT_EQ(0, yval);
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machine->execute();
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yval = reg_man->get_y_index()->get_value();
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ASSERT_EQ(0xff, yval);
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reg_man->get_program_counter()->set_value(0);
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machine->execute();
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yval = reg_man->get_y_index()->get_value();
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ASSERT_EQ(0xfe, yval);
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reg_man->get_program_counter()->set_value(0);
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reg_man->get_y_index()->set_value(0x3b);
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machine->execute();
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yval = reg_man->get_y_index()->get_value();
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ASSERT_EQ(0x3a, yval);
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}
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TEST(RegisterOpcodeHandler, IncrementY) {
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auto code = make_shared<vector<uint8_t>>(vector<uint8_t>{INY});
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auto machine = rt_get_machine(code);
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auto reg_man = machine->get_reg_man();
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auto yval = reg_man->get_y_index()->get_value();
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ASSERT_EQ(0, yval);
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machine->execute();
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yval = reg_man->get_y_index()->get_value();
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ASSERT_EQ(0x01, yval);
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reg_man->get_program_counter()->set_value(0);
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machine->execute();
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yval = reg_man->get_y_index()->get_value();
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ASSERT_EQ(0x02, yval);
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reg_man->get_program_counter()->set_value(0);
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reg_man->get_y_index()->set_value(0x3b);
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machine->execute();
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yval = reg_man->get_y_index()->get_value();
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ASSERT_EQ(0x3c, yval);
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}
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