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Add LDS, LES, LSS test.

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This commit is contained in:
Thomas Harte 2022-03-06 12:10:25 -05:00
parent 91a6bf671d
commit e7aaf4dd2e
1 changed files with 22 additions and 1 deletions
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23
OSBindings/Mac/Clock SignalTests/x86DecoderTests.mm
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@ -60,10 +60,12 @@ template <typename InstructionT> void test_far(const InstructionT &instruction,
// MARK: - Decoder
template <Model model> std::vector<typename InstructionSet::x86::Decoder<model>::InstructionT> decode(const std::initializer_list<uint8_t> &stream) {
template <Model model>
std::vector<typename InstructionSet::x86::Decoder<model>::InstructionT> decode(const std::initializer_list<uint8_t> &stream, bool set_32_bit = false) {
// Decode by offering up all data at once.
std::vector<typename InstructionSet::x86::Decoder<model>::InstructionT> instructions;
InstructionSet::x86::Decoder<model> decoder;
decoder.set_32bit_protected_mode(set_32_bit);
instructions.clear();
const uint8_t *byte = stream.begin();
while(byte != stream.end()) {
@ -76,6 +78,7 @@ template <Model model> std::vector<typename InstructionSet::x86::Decoder<model>:
// Grab a byte-at-a-time decoding and check that it matches the previous.
{
InstructionSet::x86::Decoder<model> decoder;
decoder.set_32bit_protected_mode(set_32_bit);
auto previous_instruction = instructions.begin();
for(auto item: stream) {
@ -303,4 +306,22 @@ template <Model model> std::vector<typename InstructionSet::x86::Decoder<model>:
test_far(instructions[0], Operation::CALLF, 0x7856, 0x3412);
}
- (void)testLDSLESEtc {
auto run_test = [](bool is_32, DataSize size) {
const auto instructions = decode<Model::i80386>({
0xc5, 0x33, // lds (%bp, %di), %si
0xc4, 0x17, // les (%bx), %dx
0x0f, 0xb2, 0x17, // lss edx, (edi)
}, is_32);
XCTAssertEqual(instructions.size(), 3);
test(instructions[0], size, Operation::LDS, ScaleIndexBase(Source::eBP, Source::eDI), Source::eSI);
test(instructions[1], size, Operation::LES, ScaleIndexBase(Source::eBX), Source::eDX);
test(instructions[2], size, Operation::LSS, ScaleIndexBase(Source::eBX), Source::eDX);
};
run_test(false, DataSize::Word);
run_test(true, DataSize::DWord);
}
@end