// Token: 0x06002162 RID: 8546 RVA: 0x000931F4 File Offset: 0x000921F4
public static void Dup()
{
if (!StackEmulator.IsStackEmpty())
{
int value = StackEmulator.stack[StackEmulator.pointer];
StackEmulator.PushValue(value);
}
}
// Token: 0x06002164 RID: 8548 RVA: 0x00093278 File Offset: 0x00092278
public static void Main2(string[] args)
{
StackEmulator.InitStack();
StackEmulator.PushValue(1);
StackEmulator.Dup();
int num = StackEmulator.PopValue();
StackEmulator.PushValue(2);
int num2 = StackEmulator.PopValue();
int num3 = StackEmulator.PopValue();
Console.WriteLine("Hello World!");
Console.Write("Press any key to continue . . . ");
Console.ReadKey(true);
}
// Token: 0x06002163 RID: 8547 RVA: 0x00093228 File Offset: 0x00092228
public static int PopValue()
{
int result;
if (StackEmulator.IsStackEmpty())
{
result = -1;
}
else
{
int num = StackEmulator.stack[StackEmulator.pointer];
StackEmulator.stack.RemoveAt(StackEmulator.pointer);
StackEmulator.pointer--;
result = num;
}
return(result);
}
public void InstructionParse2(int ins_index, int local_value1, int local_value2)
{
for (int i = ins_index; i < this.instructions.Count; i++)
{
if (!this.placeintindexes.Contains(i))
{
if (this.instructions[i].IsBr())
{
Instruction item = this.instructions[i].Operand as Instruction;
if (!this.brinstructions.Contains(item) && !this.realbrinstructions.Contains(item))
{
this.realbrinstructions.Add(item);
int ins_index2 = this.instructions.IndexOf(item);
this.InstructionParse2(ins_index2, local_value1, local_value2);
}
break;
}
if (this.instructions[i].IsConditionalBranch() || this.instructions[i].IsLeave())
{
Instruction item = this.instructions[i].Operand as Instruction;
if (!this.conditionalinstructions.Contains(item))
{
this.conditionalinstructions.Add(item);
int ins_index3 = this.instructions.IndexOf(item);
this.InstructionParse2(ins_index3, local_value1, local_value2);
if (i + 1 < this.instructions.Count)
{
int ins_index4 = i + 1;
this.InstructionParse2(ins_index4, local_value1, local_value2);
break;
}
}
}
else
{
if (this.instructions[i].OpCode == OpCodes.Ret)
{
break;
}
if (i + 1 < this.instructions.Count && (this.instructions[i].IsLdcI4() || this.instructions[i].IsLdloc()) && (this.instructions[i + 1].IsStloc() || this.instructions[i + 1].IsLdcI4() || this.instructions[i + 1].IsLdloc() || this.instructions[i + 1].IsBr()))
{
int num = 0;
if (this.instructions[i].IsLdcI4())
{
num = this.instructions[i].GetLdcI4Value();
}
if (this.instructions[i].IsLdloc())
{
Local local = this.instructions[i].GetLocal(this.method.Body.Variables);
if (local == this.local_variable1)
{
num = local_value1;
}
if (local == this.local_variable2)
{
num = local_value2;
}
}
int num2 = i + 1;
if (this.instructions[i + 1].IsBr() && this.instructions[i + 1].Operand is Instruction)
{
num2 = this.instructions.IndexOf(this.instructions[i + 1].Operand as Instruction);
}
int value;
int num5;
if (num2 + 3 < this.instructions.Count && (this.instructions[num2].IsLdcI4() || this.instructions[num2].IsLdloc()) && (this.instructions[num2 + 1].IsLdcI4() || this.instructions[num2 + 1].IsLdloc() || this.instructions[num2 + 1].OpCode == OpCodes.Mul) && (this.instructions[num2 + 2].IsLdcI4() || this.instructions[num2 + 2].IsLdloc() || this.instructions[num2 + 2].OpCode == OpCodes.Mul) && this.instructions[num2 + 3].OpCode == OpCodes.Xor)
{
int num3 = 0;
if (this.instructions[num2].IsLdcI4())
{
num3 = this.instructions[num2].GetLdcI4Value();
}
if (this.instructions[num2].IsLdloc())
{
Local local = this.instructions[num2].GetLocal(this.method.Body.Variables);
if (local == this.local_variable1)
{
num3 = local_value1;
}
if (local == this.local_variable2)
{
num3 = local_value2;
}
}
int num4 = 0;
if (this.instructions[num2 + 1].OpCode == OpCodes.Mul)
{
if (this.instructions[num2 + 2].IsLdcI4())
{
num4 = this.instructions[num2 + 2].GetLdcI4Value();
}
if (this.instructions[num2 + 2].IsLdloc())
{
Local local = this.instructions[num2 + 2].GetLocal(this.method.Body.Variables);
if (local == this.local_variable1)
{
num4 = local_value1;
}
if (local == this.local_variable2)
{
num4 = local_value2;
}
}
}
else
{
if (this.instructions[num2 + 1].IsLdcI4())
{
num4 = this.instructions[num2 + 1].GetLdcI4Value();
}
if (this.instructions[num2 + 1].IsLdloc())
{
Local local = this.instructions[num2 + 1].GetLocal(this.method.Body.Variables);
if (local == this.local_variable1)
{
num4 = local_value1;
}
if (local == this.local_variable2)
{
num4 = local_value2;
}
}
}
if (this.instructions[num2 + 1].OpCode == OpCodes.Mul)
{
value = (num * num3 ^ num4);
}
else
{
value = (num4 * num3 ^ num);
}
num5 = num2 + 4;
}
else
{
value = num;
num5 = i + 1;
}
Instruction instruction;
if (this.instructions[num5].IsBr())
{
instruction = (this.instructions[num5].Operand as Instruction);
}
else
{
instruction = this.instructions[num5];
}
int num6 = -1;
for (int j = 0; j < this.wheretojump.Count; j++)
{
if (this.wheretojump[j] == instruction)
{
num6 = j;
break;
}
}
if (num6 != -1)
{
StackEmulator.InitStack();
StackEmulator.PushValue(value);
int num7 = this.EmulateExpression(this.instructions.IndexOf(instruction), ref local_value1, ref local_value2);
Instruction[] array = this.switchinstructions[num6].Operand as Instruction[];
Instruction item2 = array[num7];
this.placeintindexes.Add(i);
this.intvalues.Add(num7);
if (!this.instructions[i + 1].IsBr())
{
int num8 = i + 1;
int item3 = num5 - num8;
this.tobenooped_start.Add(num8);
this.tobenooped_len.Add(item3);
}
if (!this.brinstructions.Contains(item2))
{
this.brinstructions.Add(item2);
this.InstructionParse2(this.instructions.IndexOf(item2), local_value1, local_value2);
break;
}
}
}
else if (this.instructions[i].OpCode == OpCodes.Switch)
{
Instruction instruction2 = this.instructions[i];
bool flag = false;
for (int j = 0; j < this.switchinstructions.Count; j++)
{
if (this.switchinstructions[j] == this.instructions[i])
{
flag = true;
break;
}
}
if (!flag)
{
foreach (Instruction item4 in this.instructions[i].Operand as Instruction[])
{
this.InstructionParse2(this.instructions.IndexOf(item4), local_value1, local_value2);
}
}
}
}
}
}
}
public int EmulateExpression(int ins_index, ref int local_value1, ref int local_value2)
{
int result = -1;
for (int i = ins_index; i < this.instructions.Count; i++)
{
if (this.instructions[i].IsStloc())
{
Local local = this.instructions[i].GetLocal(this.method.Body.Variables);
if (local == this.local_variable1)
{
local_value1 = StackEmulator.PopValue();
}
if (local == this.local_variable2)
{
local_value2 = StackEmulator.PopValue();
}
}
if (this.instructions[i].IsLdloc())
{
Local local = this.instructions[i].GetLocal(this.method.Body.Variables);
if (local == this.local_variable1)
{
StackEmulator.PushValue(local_value1);
}
if (local == this.local_variable2)
{
StackEmulator.PushValue(local_value2);
}
}
if (this.instructions[i].IsLdcI4())
{
int num = this.instructions[i].GetLdcI4Value();
StackEmulator.PushValue(num);
}
if (this.IsArithmetic(this.instructions[i]))
{
int value = StackEmulator.PopValue();
int value2 = StackEmulator.PopValue();
int value3 = this.CalculateArithmetic(value2, value, this.instructions[i]);
StackEmulator.PushValue(value3);
}
if (this.instructions[i].OpCode == OpCodes.Neg)
{
int num = StackEmulator.PopValue();
num = -num;
StackEmulator.PushValue(num);
}
if (this.instructions[i].OpCode == OpCodes.Not)
{
int num = StackEmulator.PopValue();
num = ~num;
StackEmulator.PushValue(num);
}
if (this.instructions[i].OpCode == OpCodes.Dup)
{
StackEmulator.Dup();
}
if (this.instructions[i].OpCode == OpCodes.Switch)
{
result = StackEmulator.PopValue();
break;
}
}
return(result);
}
