private static void assemble(Parser parser, SymbolTable symbols, StreamWriter output)
{
Code translator = new Code();
int RAM = 16;
while (parser.hasMoreCommands())
{
int value = 0;
try {
parser.advance();
} catch (EndOfStreamException) {
break;
}
switch (parser.commandType())
{
case Parser.A_COMMAND:
int address;
string symbol = parser.symbol();
bool isNumber = int.TryParse(symbol, out address);
if (!isNumber)
{
if (!symbols.contains(symbol))
{
symbols.addEntry(symbol, RAM++);
}
address = symbols.getAddress(symbol);
}
value = address;
break;
case Parser.C_COMMAND:
value |= 7 << 13; // 1110000000000000 == 57344
value |= translator.comp(parser.comp());
value |= translator.dest(parser.dest());
value |= translator.jump(parser.jump());
break;
case Parser.L_COMMAND:
continue;
}
string instruction = Convert.ToString(value, 2).PadLeft(16, '0');
output.WriteLine(instruction);
}
parser.reset();
}
static void Main()
{
string title = "Pong"; //Name of source file
string title2 = "pong"; //Name for file path
string outfile = "/Applications/nand2tetris/projects/06/" + title2 + "/" + title + ".hack";
bool hasMoreCommands = true;
string type;
int nextMem = 16;
int counter = 0;
Parser p1 = new Parser("/Applications/nand2tetris/projects/06/" + title2 + "/" + title + ".asm");
SymbolTable st = new SymbolTable();
while (hasMoreCommands == true) //First
{
p1.advance();
type = p1.commandType();
if (type == "L_COMMAND")
{
st.addEntry(p1.symbol(), counter);
}
else
{
counter += 1;
hasMoreCommands = p1.hasMoreCommands();
}
}
hasMoreCommands = true;
Parser p = new Parser("/Applications/nand2tetris/projects/06/" + title2 + "/" + title + ".asm");
Code c = new Code();
while (hasMoreCommands == true) //Second
{
p.advance();
type = p.commandType();
if (type == "A_COMMAND")
{
string varOrNum = p.symbol();
char von = varOrNum[0];
if (char.IsDigit(von) == true)
{
int prexxx = Convert.ToInt32(p.symbol());
string xxx = Convert.ToString(prexxx, 2).PadLeft(16, '0');
using (StreamWriter sw = new StreamWriter(outfile, true))
{
sw.WriteLine(xxx);
}
}
else //if(char.IsDigit(von)==false), which means xxx is variable.
{
bool cont = st.contains(varOrNum);
if (cont == false)
{
st.addEntry(varOrNum, nextMem);
string xxx = Convert.ToString(nextMem, 2).PadLeft(16, '0');
using (StreamWriter sw = new StreamWriter(outfile, true))
{
sw.WriteLine(xxx);
}
nextMem += 1;
}
else
{
string xxx = Convert.ToString(st.getAddress(varOrNum), 2).PadLeft(16, '0');
using (StreamWriter sw = new StreamWriter(outfile, true))
{
sw.WriteLine(xxx);
}
}
}
}
else if (type == "C_COMMAND")
{
string destmne = p.dest();
string dest = c.dest(destmne);
string compmne = p.comp();
string comp = c.comp(compmne);
string jumpmne = p.jump();
string jump = c.jump(jumpmne);
string c_command = "111" + comp + dest + jump;
using (StreamWriter sw = new StreamWriter(outfile, true))
{
sw.WriteLine(c_command);
}
}
else //if (type=="L_COMMAND")
{
}
hasMoreCommands = p.hasMoreCommands();
}
}