138 lines
3.6 KiB
C++
138 lines
3.6 KiB
C++
#include "bus.hh"
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#include <catch2/catch_test_macros.hpp>
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#define TAG "[bus]"
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using namespace matar;
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class BusFixture {
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public:
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BusFixture()
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: bus(Bus::init(std::array<uint8_t, Bus::BIOS_SIZE>(),
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std::vector<uint8_t>(Header::HEADER_SIZE))) {}
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protected:
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std::shared_ptr<Bus> bus;
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};
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TEST_CASE("bios", TAG) {
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std::array<uint8_t, Bus::BIOS_SIZE> bios = { 0 };
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// populate bios
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bios[0] = 0xAC;
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bios[0x3FFF] = 0x48;
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bios[0x2A56] = 0x10;
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auto bus =
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Bus::init(std::move(bios), std::vector<uint8_t>(Header::HEADER_SIZE));
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CHECK(bus->read_byte(0) == 0xAC);
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CHECK(bus->read_byte(0x3FFF) == 0x48);
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CHECK(bus->read_byte(0x2A56) == 0x10);
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}
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TEST_CASE_METHOD(BusFixture, "board wram", TAG) {
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bus->write_byte(0x2000000, 0xAC);
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CHECK(bus->read_byte(0x2000000) == 0xAC);
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bus->write_byte(0x203FFFF, 0x48);
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CHECK(bus->read_byte(0x203FFFF) == 0x48);
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bus->write_byte(0x2022A56, 0x10);
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CHECK(bus->read_byte(0x2022A56) == 0x10);
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}
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TEST_CASE_METHOD(BusFixture, "chip wram", TAG) {
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bus->write_byte(0x3000000, 0xAC);
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CHECK(bus->read_byte(0x3000000) == 0xAC);
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bus->write_byte(0x3007FFF, 0x48);
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CHECK(bus->read_byte(0x3007FFF) == 0x48);
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bus->write_byte(0x3002A56, 0x10);
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CHECK(bus->read_byte(0x3002A56) == 0x10);
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}
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TEST_CASE_METHOD(BusFixture, "palette ram", TAG) {
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bus->write_byte(0x5000000, 0xAC);
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CHECK(bus->read_byte(0x5000000) == 0xAC);
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bus->write_byte(0x50003FF, 0x48);
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CHECK(bus->read_byte(0x50003FF) == 0x48);
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bus->write_byte(0x5000156, 0x10);
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CHECK(bus->read_byte(0x5000156) == 0x10);
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}
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TEST_CASE_METHOD(BusFixture, "video ram", TAG) {
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bus->write_byte(0x6000000, 0xAC);
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CHECK(bus->read_byte(0x6000000) == 0xAC);
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bus->write_byte(0x6017FFF, 0x48);
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CHECK(bus->read_byte(0x6017FFF) == 0x48);
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bus->write_byte(0x6012A56, 0x10);
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CHECK(bus->read_byte(0x6012A56) == 0x10);
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}
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TEST_CASE_METHOD(BusFixture, "oam obj ram", TAG) {
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bus->write_byte(0x7000000, 0xAC);
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CHECK(bus->read_byte(0x7000000) == 0xAC);
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bus->write_byte(0x70003FF, 0x48);
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CHECK(bus->read_byte(0x70003FF) == 0x48);
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bus->write_byte(0x7000156, 0x10);
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CHECK(bus->read_byte(0x7000156) == 0x10);
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}
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TEST_CASE("rom", TAG) {
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std::vector<uint8_t> rom(32 * 1024 * 1024, 0);
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// populate rom
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rom[0] = 0xAC;
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rom[0x1FFFFFF] = 0x48;
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rom[0x0EF0256] = 0x10;
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// 32 megabyte ROM
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auto bus = Bus::init(std::array<uint8_t, Bus::BIOS_SIZE>(), std::move(rom));
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SECTION("ROM1") {
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CHECK(bus->read_byte(0x8000000) == 0xAC);
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CHECK(bus->read_byte(0x9FFFFFF) == 0x48);
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CHECK(bus->read_byte(0x8EF0256) == 0x10);
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}
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SECTION("ROM2") {
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CHECK(bus->read_byte(0xA000000) == 0xAC);
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CHECK(bus->read_byte(0xBFFFFFF) == 0x48);
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CHECK(bus->read_byte(0xAEF0256) == 0x10);
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}
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SECTION("ROM3") {
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CHECK(bus->read_byte(0xC000000) == 0xAC);
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CHECK(bus->read_byte(0xDFFFFFF) == 0x48);
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CHECK(bus->read_byte(0xCEF0256) == 0x10);
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}
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}
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TEST_CASE_METHOD(BusFixture, "Halfword", TAG) {
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CHECK(bus->read_halfword(0x202FED9) == 0);
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bus->write_halfword(0x202FED9, 0x1A4A);
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CHECK(bus->read_halfword(0x202FED9) == 0x1A4A);
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CHECK(bus->read_word(0x202FED9) == 0x1A4A);
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CHECK(bus->read_byte(0x202FED9) == 0x4A);
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}
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TEST_CASE_METHOD(BusFixture, "Word", TAG) {
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CHECK(bus->read_word(0x600EE34) == 0);
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bus->write_word(0x600EE34, 0x3ACC491D);
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CHECK(bus->read_word(0x600EE34) == 0x3ACC491D);
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CHECK(bus->read_halfword(0x600EE34) == 0x491D);
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CHECK(bus->read_byte(0x600EE34) == 0x1D);
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}
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#undef TAG
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