Just WTF?

                for (var j = 0; j < PreambleLength; j++)
05D36B44  xor         edx,edx
05D36B46  mov         dword ptr [ebp-1Ch],edx
05D36B49  nop
05D36B4A  jmp         05D36BDE
                {
                    _candidate[j] -= _delay[head];
05D36B4F  mov         eax,dword ptr [ebp-6Ch]
05D36B52  mov         eax,dword ptr [eax+1Ch]
05D36B55  mov         edx,dword ptr [ebp-1Ch]
05D36B58  shl         edx,2
05D36B5B  add         eax,edx
05D36B5D  mov         dword ptr [ebp-34h],eax
05D36B60  mov         eax,dword ptr [ebp-6Ch]
05D36B63  mov         eax,dword ptr [eax+20h]
05D36B66  mov         edx,dword ptr [ebp-18h]
05D36B69  mov         eax,dword ptr [eax+edx*4]
05D36B6C  mov         edx,dword ptr [ebp-34h]
05D36B6F  sub         dword ptr [edx],eax

                    head += _samplesPerBit;
05D36B71  mov         eax,dword ptr [ebp-6Ch]
05D36B74  mov         eax,dword ptr [eax+28h]
05D36B77  add         dword ptr [ebp-18h],eax
                    if (head >= _delayBuffer.Length)
05D36B7A  mov         eax,dword ptr [ebp-18h]
05D36B7D  mov         dword ptr [ebp-38h],eax
05D36B80  mov         eax,dword ptr [ebp-6Ch]
05D36B83  mov         ecx,dword ptr [eax+0Ch]
05D36B86  cmp         dword ptr [ecx],ecx
05D36B88  call        dword ptr ds:[6611FD8h]
05D36B8E  mov         dword ptr [ebp-3Ch],eax
05D36B91  mov         eax,dword ptr [ebp-38h]
05D36B94  cmp         eax,dword ptr [ebp-3Ch]
05D36B97  jl          05D36BB9
                    {
                        head -= _delayBuffer.Length;
05D36B99  mov         eax,dword ptr [ebp-18h]
                    {
                        head -= _delayBuffer.Length;
05D36B9C  mov         dword ptr [ebp-44h],eax
05D36B9F  mov         eax,dword ptr [ebp-6Ch]
05D36BA2  mov         ecx,dword ptr [eax+0Ch]
05D36BA5  cmp         dword ptr [ecx],ecx
05D36BA7  call        dword ptr ds:[6611FD8h]
05D36BAD  mov         dword ptr [ebp-48h],eax
05D36BB0  mov         eax,dword ptr [ebp-44h]
05D36BB3  sub         eax,dword ptr [ebp-48h]
05D36BB6  mov         dword ptr [ebp-18h],eax
                    }