private ResultInfo AnalyzeNibble3()
{
int nibble3 = (int)_command & 0b_0011_0000_0000_0000; //bitoperation nur auf int ausführbar
switch (nibble3)
{
case 0b_0010_0000_0000_0000:
int bit12 = (int)_command & 0b_0000_1000_0000_0000;
int address = (int)_command & 0b_0000_0111_1111_1111;
if (bit12 == 0b_0000_1000_0000_0000)
{
return(_literalControlOperations.GOTO(address));
}
else
{
return(_literalControlOperations.CALL(address));
}
case 0b_0001_0000_0000_0000: //bit oriented operations
return(AnalyzeBits11_12());
case 0b_0011_0000_0000_0000: //literal operations
return(AnalyzeNibble2Literal());
case 0b_0000_0000_0000_0000: //byte oriented operations
return(AnalyzeNibble2Byte());
default:
return(null);
}
}
public void Goto()
{
_ram.SetupGet(p => p[MemoryConstants.PCLATH_B1]).Returns(8);
int address = 0x_0f;
int newPc = address + (8 << 8);
ResultInfo op_result = _opService.GOTO(address);
Assert.AreEqual(newPc, op_result.JumpAddress);
Assert.AreEqual(2, op_result.Cycles);
Assert.AreEqual(0x_0f, op_result.OperationResults[0].Value);
Assert.AreEqual(MemoryConstants.PCL_B1, op_result.OperationResults[0].Address);
_ram.Verify(p => p[MemoryConstants.PCLATH_B1]);
}