public Run6502FunctionalTest(
//ILogger<Run6502FunctionalTest> logger,
FunctionalTestCompiler functionalTestCompiler)
{
//_logger = logger;
_functionalTestCompiler = functionalTestCompiler;
}
public void Can_Run_6502_Functional_Test_Program_With_Decimal_Mode_Disabled_Successfully()
{
// Arrange
var functionalTestCompiler = new FunctionalTestCompiler(NullLogger <FunctionalTestCompiler> .Instance);
var functionalTestBinary = functionalTestCompiler.Get6502FunctionalTestBinary(disableDecimalTests: true);
// There is no 2 byte header in the 6502_functional_test.bin file.
// It's supposed to be loaded to memory at 0x0000, and started at 0x0400
ushort loadAddress = 0x000A;
ushort startAddress = 0x0400;
var mem = BinaryLoader.Load(
functionalTestBinary,
out ushort loadedAtAddress,
out int fileLength,
forceLoadAddress: loadAddress);
_output.WriteLine($"Data & code load address: {loadAddress.ToHex(), 10} ({loadAddress})");
_output.WriteLine($"Code+data length (bytes): 0x{fileLength, -8:X8} ({fileLength})");
_output.WriteLine($"Code start address: {startAddress.ToHex(), 10} ({startAddress})");
var computerBuilder = new ComputerBuilder();
computerBuilder
.WithCPU()
.WithStartAddress(startAddress)
.WithMemory(mem)
.WithExecOptions(options =>
{
// A successful run has about 26765880 instructions (the version that was run 2021-02-06, that may change)
// We increase to almost double, and will exit if not finished then.
options.MaxNumberOfInstructions = 50000000;
options.ExecuteUntilExecutedInstructionAtPC = 0x336d;
options.UnknownInstructionThrowsException = false;
});
var computer = computerBuilder.Build();
var execOptions = computer.DefaultExecOptions;
_output.WriteLine($"If test logic succeeds, the test program will reach a specific memory location: {execOptions.ExecuteUntilExecutedInstructionAtPC.Value.ToHex()}, and the emulator will then stop processing.");
_output.WriteLine($"If test logic fails, the test program will loop forever at the location the error was found. The emulator will try executing a maximum #instructions {execOptions.MaxNumberOfInstructions.Value} before giving up.");
_output.WriteLine($"If unknown opcode is found, it's logged and ignored, and processing continues on next instruction.");
// Act
computer.Run();
// Assert
var cpu = computer.CPU;
var execState = cpu.ExecState;
_output.WriteLine($"CPU last PC: {cpu.PC.ToHex()}");
_output.WriteLine($"CPU last opcode: {execState.LastOpCode.Value.ToOpCodeId()} ({execState.LastOpCode.Value.ToHex()})");
_output.WriteLine($"Total # CPU instructions executed: {execState.InstructionsExecutionCount}");
_output.WriteLine($"Total # CPU cycles consumed: {execState.CyclesConsumed}");
if (cpu.PC == computer.DefaultExecOptions.ExecuteUntilExecutedInstructionAtPC.Value)
{
_output.WriteLine($"Success. PC reached expected success memory location: {computer.DefaultExecOptions.ExecuteUntilExecutedInstructionAtPC.Value.ToHex()}");
Assert.True(true);
}
else
{
_output.WriteLine($"Probably failure. The emulator executer a maximum #instructions {computer.DefaultExecOptions.MaxNumberOfInstructions.Value}, and did not manage to get PC to the configured success location: {computer.DefaultExecOptions.ExecuteUntilExecutedInstructionAtPC.Value.ToHex()}");
_output.WriteLine($"The functional test program would end in a forever-loop on the same memory location if it fails.");
_output.WriteLine($"Verify the last PC location against the functional test program's .lst file to find out which logic test failed.");
Assert.True(false);
}
}
