static void Main(string[] args)
{
try
{
#if false
using (MemoryBlock mb = new MemoryBlock((UIntPtr)0x20000))
{
Console.WriteLine("Is64Bit = " + MemoryBlock.Is64Bit);
Console.WriteLine("mb.Location = " + mb.Location);
Console.WriteLine("mb.Size = " + mb.Size);
Marshal.WriteByte(mb.Location, (byte)32);
byte b = Marshal.ReadByte(mb.Location);
System.Diagnostics.Debug.Assert(b == (byte)32);
mb.Security = MemoryBlockSecurity.ReadOnly;
byte b2 = Marshal.ReadByte(mb.Location);
Marshal.WriteByte(mb.Location, (byte)64);
}
#endif
Console.SetBufferSize(120, 60);
Console.SetWindowSize(120, 60);
Console.WriteLine("Sunlit World Forth in C#");
Console.WriteLine("Copyright (c) 2007 by Edward Kiser");
Console.WriteLine("All Rights Reserved");
if (MemoryBlock.Is64Bit) Console.WriteLine("[Running in 64-bit Mode]");
using (MemoryBlock mb = new MemoryBlock((UIntPtr)0x20000))
{
mb.Security = MemoryBlockSecurity.ExecuteReadWrite;
Forth f = new Forth();
f.ByteMemory = new MemoryAccessor(mb.Location, mb.Size);
f.LoadX86Asm();
bool done = false;
f.Execute("also forth definitions previous");
f.Define("bye", delegate(Forth g) { done = true; });
f.Execute("vocabulary user also user definitions");
while (!done)
{
if (f.IsCompiling) Console.WriteLine("ok (compiling)"); else Console.WriteLine("ok");
string x = Console.ReadLine();
f.Execute(x);
}
}
}
catch (Exception exc)
{
Console.WriteLine();
Console.WriteLine("***** Exception! *****");
Console.WriteLine();
Console.WriteLine(exc);
}
Console.WriteLine("Press a key...");
Console.ReadKey();
}
public static void Hex(Forth f)
{
f.numericBase = 16;
}
public void Run(Forth f)
{
f.rStack.Push(0);
while(true)
{
int pos = f.rStack.Pop();
if (pos < 0 || pos >= components.Count) break;
int posNext = pos + 1;
f.rStack.Push(posNext);
components[pos](f);
}
}
public static void Allot(Forth f)
{
long amt = f.PopInt64();
if (amt > (long)(f.memory.Length - f.here)) throw new ArgumentOutOfRangeException("Attempt to allot more memory than is available");
f.here += (int)amt;
}
public static void Comma(Forth f)
{
object v = f.dStack.Pop();
f.memory[f.here] = v;
f.here++;
}
public static void Bang(Forth f)
{
long index = f.PopInt64();
object v = f.dStack.Pop();
f.memory[(int)index] = v;
}
public static void Unused(Forth f)
{
f.PushInt64((long)(f.memory.Length - f.here));
}
public static void IsExecutionToken(Forth f)
{
bool b = (f.dStack.Top is ExecutionToken);
f.dStack.Pop();
f.PushBool(b);
}
public static void Not(Forth f)
{
bool b = f.PopBool();
f.PushBool(!b);
}
public static void IsNotLessThanUnsigned(Forth f)
{
ulong b = f.PopUInt64();
ulong a = f.PopUInt64();
f.PushBool(a >= b);
}
public static void IsNotGreaterThanUnsigned(Forth f)
{
ulong b = f.PopUInt64();
ulong a = f.PopUInt64();
f.PushBool(a <= b);
}
public static void IsNotLessThan(Forth f)
{
long b = f.PopInt64();
long a = f.PopInt64();
f.PushBool(a >= b);
}
public static void IsNotGreaterThan(Forth f)
{
long b = f.PopInt64();
long a = f.PopInt64();
f.PushBool(a <= b);
}
public static void DoesNotEqual(Forth f)
{
ulong b = f.PopUInt64();
ulong a = f.PopUInt64();
f.PushBool(a != b);
}
public static void Equals(Forth f)
{
ulong b = f.PopUInt64();
ulong a = f.PopUInt64();
f.PushBool(a == b);
}
public static void IsNull(Forth f)
{
bool b = (f.dStack.Top == null);
f.dStack.Pop();
f.dStack.Push(b);
}
public static void IsLong(Forth f)
{
bool b = (f.dStack.Top is long);
f.dStack.Pop();
f.PushBool(b);
}
public static void Dot(Forth f)
{
object obj = f.dStack.Pop();
Console.Write(Convert.ToString(obj));
Console.Write(" ");
}
public static void Here(Forth f)
{
f.PushInt64((long)(f.here));
}
public static void UnsignedDot(Forth f)
{
object obj = f.dStack.Pop();
if (obj is long)
{
long l = (long)obj;
ulong u = unchecked((ulong)l);
obj = u;
}
Console.Write(Convert.ToString(obj));
Console.Write(" ");
}
public static void At(Forth f)
{
long index = f.PopInt64();
f.dStack.Push(f.memory[(int)index]);
}
public static void DotQuote(Forth f)
{
if (f.isCompiling)
{
string str = f.getWord('"');
f.AppendCode
(
delegate(Forth g)
{
Console.Write(str);
}
);
}
else
{
string str = f.getWord('"');
Console.Write(str);
}
}
public static void Off(Forth f)
{
long index = f.PopInt64();
f.memory[(int)index] = 0L;
}
public static void Backslash(Forth f)
{
f.getWord('\n');
}
public static void Create(Forth f)
{
string word = f.getWord(' ');
f.Define(word, MakeLiteralOp((long)f.here));
}
public static void LParen(Forth f)
{
f.getWord(')');
}
public static void Variable(Forth f)
{
Create(f);
f.memory[f.here] = null;
f.here++;
}
public static void Space(Forth f)
{
Console.Write(" ");
}
public static void Cr(Forth f)
{
Console.WriteLine();
}
public static void Decimal(Forth f)
{
f.numericBase = 10;
}