public ParserState(Parser parser)
{
Parser = parser;
Branches = new Dictionary<ushort, string>();
Labels = new Dictionary<ushort, string>();
DataFields = new Dictionary<ushort, string>();
Scopes = new Scopes();
Code = new List<byte>();
}
private bool TryAssemble(string pathToAsmFile, out List<byte> machineCode, out string errorMessage)
{
machineCode = null;
errorMessage = null;
string asmFileContents = getFileContents(pathToAsmFile);
if (asmFileContents == null)
{
errorMessage = c_ErrEmptyInput;
return false;
}
Parser parser = new Parser();
machineCode = parser.Parse(asmFileContents, Path.GetDirectoryName(pathToAsmFile));
if (machineCode == null)
{
errorMessage = parser.ErrorMsg;
return false;
}
return true;
}
private static void Test(string asm, params ushort[] expected)
{
Parser p = new Parser();
try
{
List<byte> assembled = p.Parse(asm, string.Empty);
if (assembled == null)
throw new Exception(p.ErrorMsg);
if (assembled.Count != expected.Length * 2)
throw new Exception("Failure to match: instruction {0} did not match expected bit length");
for (int i = 0; i < expected.Length; i++)
{
if (((expected[i] & 0x00ff) != assembled[i * 2]) || ((expected[i] >> 8) != assembled[i * 2 + 1]))
{
// format the expected and actual code values:
StringBuilder sbCode = new StringBuilder(), sbAssembled = new StringBuilder();
for (int j = 0; j < expected.Length; j++)
sbCode.Append($"{expected[j]:X4} ");
for (int j = 0; j < assembled.Count; j++)
{
int k = ((j % 2) == 0) ? 1 : -1;
sbAssembled.Append($"{assembled[j + k]:X2}");
if (j % 2 == 1)
sbAssembled.Append(" ");
}
throw new Exception(string.Format("Failure to match expected bit pattern\n" +
"Expected: {1}\n" + "Actual: {2}",
asm, sbCode, sbAssembled));
}
}
}
catch (Exception e)
{
throw new Exception($"{asm}\n{e.Message}", e);
}
m_TestCount++;
}