int __stdcall P0(int a1)
{
  int v1; // eax
  unsigned int v2; // edi
  unsigned int v3; // esi
  int v4; // eax
  unsigned int v5; // esi
  unsigned int v7; // [esp-18h] [ebp-34h]
  void *v8; // [esp-14h] [ebp-30h]
  int *v9; // [esp-10h] [ebp-2Ch]
  unsigned int v10; // [esp-Ch] [ebp-28h]
  void *v11; // [esp-8h] [ebp-24h]
  int *v12; // [esp-4h] [ebp-20h]
  void *v13; // [esp+0h] [ebp-1Ch]
  int v14; // [esp+Ch] [ebp-10h]
  int i; // [esp+10h] [ebp-Ch]
  unsigned int v16; // [esp+14h] [ebp-8h]
  int v17; // [esp+18h] [ebp-4h]
  int savedregs; // [esp+1Ch] [ebp+0h]

  v14 = 0;
  v17 = 0;
  v12 = &savedregs;
  v11 = &loc_448909;
  v10 = __readfsdword(0);
  __writefsdword(0, (unsigned int)&v10);
  sub_4054B0(dword_4DD68C, -1);
  v9 = &savedregs;
  v8 = &loc_4488E4;
  v7 = __readfsdword(0);
  __writefsdword(0, (unsigned int)&v7);
  if ( (unsigned __int8)sub_450F9C(dword_4DD68C, a1) )
  {
    v16 = sub_45085C(dword_4DD68C, a1);
  }
  else
  {
    Sysutils::IntToStr(a1);
    sub_406FB0(&v17, v14, 0);
    v1 = v17;
    if ( v17 && *(_WORD *)(v17 - 10) != 1 )
      v1 = sub_406590(&v17, v17, 0);
    if ( v1 )
      v1 = *(_DWORD *)(v1 - 4);
    v2 = v1;
    v3 = v1 ^ 0x9747B28C;
    for ( i = 1; v2 >= 4; v2 -= 4 )
    {
      v4 = sub_4068AC(&v17);
      v3 = 1272048021
         * (((unsigned int)(1272048021 * *(_DWORD *)(v4 + i - 1)) >> 24) ^ 1272048021 * *(_DWORD *)(v4 + i - 1)) ^ 1272048021 * v3;
      i += 4;
    }
    if ( v2 == 3 )
      v3 ^= *(unsigned __int8 *)(v17 + i + 1) << 16;
    if ( v2 >= 2 )
      v3 ^= *(unsigned __int8 *)(v17 + i) << 8;
    if ( v2 >= 1 )
      v3 = 1272048021 * (*(unsigned __int8 *)(v17 + i - 1) ^ v3);
    v5 = (1272048021 * ((v3 >> 13) ^ v3) >> 15) ^ 1272048021 * ((v3 >> 13) ^ v3);
    sub_450D5C(dword_4DD68C, a1, v5);
    v16 = v5;
  }
  __writefsdword(0, v7);
  v9 = (int *)&loc_4488EB;
  sub_4056B0(dword_4DD68C);
  __writefsdword(0, (unsigned int)v11);
  v13 = &loc_448910;
  sub_406D74(&v14);
  sub_4063B0(&v17);
  return v16;
}