public void ShouldGenerateImmediateInstruction(CpuInstructions opcodeEnum, byte finalOpcode, int value)
{
CpuInstructionStatement instruction = new CpuInstructionStatement();
instruction.AddressingMode = CpuAddressingMode.Immediate;
instruction.Opcode = opcodeEnum;
if (value > byte.MaxValue)
{
instruction.Arguments.Add(new NumberInstructionArgument(value, ArgumentSize.Word));
}
else
{
instruction.Arguments.Add(new NumberInstructionArgument(value, ArgumentSize.Byte));
}
List <CpuInstructionStatement> instructions = new List <CpuInstructionStatement>();
instructions.Add(instruction);
MemoryStream memoryStream = new MemoryStream(8);
CpuCodeGenerator generator = new CpuCodeGenerator(memoryStream);
generator.Instructions = instructions;
generator.Generate();
Assert.Equal(finalOpcode, memoryStream.GetBuffer()[0]);
Assert.Equal((byte)(value & 0xFF), memoryStream.GetBuffer()[1]);
Assert.Equal((byte)(value >> 8), memoryStream.GetBuffer()[2]);
}
public void ShouldParseImpliedInstructions(string opcodeText, CpuInstructions opcodeEnum)
{
string input = String.Format(ProcedureTemplate, opcodeText);
ZealCpuDriver driver = new ZealCpuDriver(input.ToMemoryStream());
driver.Parse();
CpuInstructionStatement instructionStatement = driver.GlobalScope.Children[0].Statements[0] as CpuInstructionStatement;
Assert.Equal(opcodeEnum, instructionStatement.Opcode);
Assert.Equal(CpuAddressingMode.Implied, instructionStatement.AddressingMode);
}
public void ShouldParseAbsoluteInstructions(string instruction, CpuInstructions opcodeEnum, int value)
{
string input = String.Format(ProcedureTemplate, instruction);
ZealCpuDriver driver = new ZealCpuDriver(input.ToMemoryStream());
driver.Parse();
CpuInstructionStatement instructionStatement = driver.GlobalScope.Children[0].Statements[0] as CpuInstructionStatement;
Assert.Equal(opcodeEnum, instructionStatement.Opcode);
Assert.Equal(CpuAddressingMode.Absolute, instructionStatement.AddressingMode);
var numberArgument = instructionStatement.Arguments[0] as NumberInstructionArgument;
Assert.Equal(value, numberArgument.Number);
}
public void ShouldParseAbsoluteInstructions(string instruction, CpuInstructions opcodeEnum, int value)
{
string input = String.Format(ProcedureTemplate, instruction);
ZealCpuDriver driver = new ZealCpuDriver(input.ToMemoryStream());
driver.Parse();
CpuInstructionStatement instructionStatement = driver.GlobalScope.Children[0].Statements[0] as CpuInstructionStatement;
Assert.Equal(opcodeEnum, instructionStatement.Opcode);
Assert.Equal(CpuAddressingMode.Absolute, instructionStatement.AddressingMode);
var numberArgument = instructionStatement.Arguments[0] as NumberInstructionArgument;
Assert.Equal(value, numberArgument.Number);
}
public void ShouldGenerateImpliedInstruction(CpuInstructions opcodeEnum, byte finalOpcode)
{
CpuInstructionStatement instruction = new CpuInstructionStatement();
instruction.AddressingMode = CpuAddressingMode.Implied;
instruction.Opcode = opcodeEnum;
List <CpuInstructionStatement> instructions = new List <CpuInstructionStatement>();
instructions.Add(instruction);
MemoryStream memoryStream = new MemoryStream(8);
CpuCodeGenerator generator = new CpuCodeGenerator(memoryStream);
generator.Instructions = instructions;
generator.Generate();
Assert.Equal(finalOpcode, memoryStream.GetBuffer()[0]);
}
public void ShouldGenerateAbsoluteInstruction(CpuInstructions opcodeEnum, byte finalOpcode, int value)
{
CpuInstructionStatement instruction = new CpuInstructionStatement();
instruction.AddressingMode = CpuAddressingMode.Absolute;
instruction.Opcode = opcodeEnum;
instruction.Arguments.Add(new NumberInstructionArgument(value, ArgumentSize.Word));
List<CpuInstructionStatement> instructions = new List<CpuInstructionStatement>();
instructions.Add(instruction);
MemoryStream memoryStream = new MemoryStream(8);
CpuCodeGenerator generator = new CpuCodeGenerator(memoryStream);
generator.Instructions = instructions;
generator.Generate();
Assert.Equal(finalOpcode, memoryStream.GetBuffer()[0]);
Assert.Equal((byte)(value & 0xFF), memoryStream.GetBuffer()[1]);
Assert.Equal((byte)(value >> 8), memoryStream.GetBuffer()[2]);
}
public void ShouldParseImpliedInstructions(string opcodeText, CpuInstructions opcodeEnum)
{
string input = String.Format(ProcedureTemplate, opcodeText);
ZealCpuDriver driver = new ZealCpuDriver(input.ToMemoryStream());
driver.Parse();
CpuInstructionStatement instructionStatement = driver.GlobalScope.Children[0].Statements[0] as CpuInstructionStatement;
Assert.Equal(opcodeEnum, instructionStatement.Opcode);
Assert.Equal(CpuAddressingMode.Implied, instructionStatement.AddressingMode);
}
public void ShouldGenerateImpliedInstruction(CpuInstructions opcodeEnum, byte finalOpcode)
{
CpuInstructionStatement instruction = new CpuInstructionStatement();
instruction.AddressingMode = CpuAddressingMode.Implied;
instruction.Opcode = opcodeEnum;
List<CpuInstructionStatement> instructions = new List<CpuInstructionStatement>();
instructions.Add(instruction);
MemoryStream memoryStream = new MemoryStream(8);
CpuCodeGenerator generator = new CpuCodeGenerator(memoryStream);
generator.Instructions = instructions;
generator.Generate();
Assert.Equal(finalOpcode, memoryStream.GetBuffer()[0]);
}