public static string Disassemble(byte[] program, int length)
{
StringBuilder builder = new StringBuilder();
var position = 0;
while (position < length)
{
var opcode = (Opcode)program[position];
if (opcode == Opcode.Metadata)
{
var m1 = program[position + 1];
var m2 = program[position + 2];
var m3 = program[position + 3];
builder.AppendFormat("\nFunction\n{0:D3}:\tMethod [Params: {3}]", position, m1, m2, m3);
position += 4;
}
else
{
builder.AppendFormat("{0:D3}:\t{1, -16}", position, opcode);
position++;
foreach (Type t in OpcodeDefinition.For(opcode).Params)
{
if (t == typeof(byte))
{
builder.AppendFormat("{0:X2} ({0})\t", program[position++]);
}
else if (t == typeof(short))
{
builder.AppendFormat("{0:X4} ({0})\t", BitConverter.ToInt16(program, position));
position += sizeof(short);
}
else if (t == typeof(int))
{
builder.AppendFormat("{0:X8} ({0})\t", BitConverter.ToInt32(program, position));
position += sizeof(int);
}
else if (t == typeof(long))
{
builder.AppendFormat("{0:X16} ({0})\t", BitConverter.ToInt64(program, position));
position += sizeof(int);
}
else
{
throw new NotImplementedException();
}
}
}
builder.AppendLine();
}
return(builder.ToString());
}
public void Emit(Opcode opcode, long param1)
{
Requires.That(OpcodeDefinition.For(opcode).Params.SequenceEqual(new Type[] { typeof(int) }));
Buffer.Position = Length;
writer.Write((byte)opcode);
writer.Write(param1);
writer.Flush();
Length = (int)Buffer.Position;
}