public static byte[] Assemble(InstructionCollection insts)
{
MemoryStream ret = new MemoryStream();
BinaryWriter wtr = new BinaryWriter(ret);
foreach (Instruction ii in insts)
{
if (ii.OpCode.Code < 0xff)
{
wtr.Write((byte)ii.OpCode.Code);
}
else
{
wtr.Write((ushort)ii.OpCode.Code);
}
switch (ii.OpCode.OperandType)
{
case OperandType.InlineBrTarget:
wtr.Write((uint)(insts.ComputeOffset(ii.Operand.Value as Instruction) - (insts.ComputeOffset(ii) + 4)));
break;
case OperandType.InlineField:
case OperandType.InlineMethod:
case OperandType.InlineTok:
case OperandType.InlineType:
case OperandType.InlineSig:
case OperandType.InlineString:
wtr.Write((ii.Operand.Value as MetadataToken).Value);
break;
case OperandType.InlineI:
wtr.Write((uint)ii.Operand.Value);
break;
case OperandType.InlineI8:
wtr.Write((ulong)ii.Operand.Value);
break;
case OperandType.InlineR:
wtr.Write((double)ii.Operand.Value);
break;
case OperandType.InlineSwitch:
Instruction[] op = ii.Operand.Value as Instruction[];
wtr.Write((uint)op.Length);
uint bas = insts.ComputeOffset(ii) + 4 + (uint)op.Length * 4;
foreach (Instruction i in op)
{
wtr.Write(insts.ComputeOffset(i) - bas);
}
break;
case OperandType.InlineVar:
wtr.Write((ushort)ii.Operand.Value);
break;
case OperandType.InlineParam:
wtr.Write((ushort)ii.Operand.Value);
break;
case OperandType.ShortInlineBrTarget:
wtr.Write((sbyte)(insts.ComputeOffset(ii.Operand.Value as Instruction) - (insts.ComputeOffset(ii) + 1)));
break;
case OperandType.ShortInlineI:
wtr.Write((byte)ii.Operand.Value);
break;
case OperandType.ShortInlineR:
wtr.Write((float)ii.Operand.Value);
break;
case OperandType.ShortInlineVar:
wtr.Write((byte)ii.Operand.Value);
break;
case OperandType.ShortInlineParam:
wtr.Write((byte)ii.Operand.Value);
break;
}
}
return(ret.ToArray());
}
public string GetOffsetString()
{
return("L_" + coll.ComputeOffset(this).ToString("x4").ToUpper());
}