public void JumpTest()
{
Parser parser = new Parser();
parser.currentTxtCommand = "0;JMP";
Assert.IsTrue(parser.Jump() == "JMP");
}
/// <summary>
/// Seconds the pass.
/// TODO - refactor! break into smaller methods!!!
/// after the first symbol table filling pass,
/// we march thru the lines again, the parser gives us each command and its type
/// we pass these to the code generator to build our binary representation
/// </summary>
/// <param name="inputBytes">The input bytes.</param>
/// <param name="symbolTable">The symbol table.</param>
/// <returns></returns>
private string FinalPass(byte[] inputBytes)
{
MemoryStream inputStream = new MemoryStream(inputBytes);
using (Parser parser = new Parser(inputStream))
{
StringBuilder fullBinaryListing = new StringBuilder();
// magic number, new variables in the hack platform are stored from address 16 upwards.
int addressCounter = 16;
//TODO - horrible nested while and if chain - break into methods
while (parser.HasMoreCommands())
{
String binaryLine = String.Empty;
parser.Advance();
if (parser.CommandType() == Command.C_COMMAND)
{
binaryLine = CodeGenerator.GetFullCInstruction(parser.Comp(), parser.Dest(), parser.Jump()) + Environment.NewLine;
fullBinaryListing.Append(binaryLine);
}
else if (parser.CommandType() == Command.A_COMMAND)
{
binaryLine = this.Handle_A_Command(parser.Symbol(), ref addressCounter);
fullBinaryListing.Append(binaryLine + Environment.NewLine);
}
}
return(fullBinaryListing.ToString());
}
#endregion
}
/// <summary>
/// Seconds the pass.
/// TODO - refactor! break into smaller methods!!!
/// after the first symbol table filling pass,
/// we march thru the lines again, the parser gives us each command and its type
/// we pass these to the code generator to build our binary representation
/// </summary>
/// <param name="inputBytes">The input bytes.</param>
/// <param name="symbolTable">The symbol table.</param>
/// <returns></returns>
private string FinalPass(byte[] inputBytes)
{
MemoryStream inputStream = new MemoryStream(inputBytes);
using (Parser parser = new Parser(inputStream))
{
StringBuilder fullBinaryListing = new StringBuilder();
// magic number, new variables in the hack platform are stored from address 16 upwards.
int addressCounter = 16;
//TODO - horrible nested while and if chain - break into methods
while (parser.HasMoreCommands())
{
String binaryLine = String.Empty;
parser.Advance();
if (parser.CommandType() == Command.C_COMMAND)
{
binaryLine = CodeGenerator.GetFullCInstruction(parser.Comp(), parser.Dest(), parser.Jump()) + Environment.NewLine;
fullBinaryListing.Append(binaryLine);
}
else if (parser.CommandType() == Command.A_COMMAND)
{
binaryLine = this.Handle_A_Command(parser.Symbol(), ref addressCounter);
fullBinaryListing.Append(binaryLine + Environment.NewLine);
}
}
return fullBinaryListing.ToString();
}
#endregion
}