RtlFindNextAlignedForwardRunClear

NTSTATUS __fastcall RtlFindNextAlignedForwardRunClear(
        _RTL_BITMAP *BitMapHeader,
        UINT64 HintIndex,
        UINT64 NumberToFind,
        UINT64 RequiredBitAlignment){
  unsigned int SizeOfBitMap; 
  unsigned int v5; 
  int v6; 
  unsigned int v8; 
  int v9; 
  unsigned int *v10; 
  unsigned int *i; 
  char v12; 
  int v13; 
  unsigned int v14; 
  int v15; 
  unsigned int v17; 

  SizeOfBitMap = BitMapHeader->SizeOfBitMap;
  v5 = 0;
  v6 = NumberToFind;
  v8 = 1;
  v9 = 1;
  do
    v9 |= 1 << v8++;
  while( v8 < 0x20 );
  v10 = &BitMapHeader->Buffer[(unsigned __int64)(SizeOfBitMap - 1) >> 5];
LABEL_4:
  for( i = &BitMapHeader->Buffer[(unsigned __int64)v5 >> 5]; i <= v10; ++i )
  {
    v12 = v5;
    v5 &= 0xFFFFFFE0;
    v13 = *i | *((_DWORD *)qword_140011CE0 + (v12 & 0x1F));
    if( (v13 & v9) != v9 )
    {
      v14 = 0;
      while( 1 )
      {
        if( !_bittest(&v13, v14) )
        {
          v15 = 0;
          if( v5 < SizeOfBitMap )
          {
            do
            {
              if( _bittest64((const signed __int64 *)BitMapHeader->Buffer, v5) )
                break;
              ++v5;
              if( ++v15 == v6 )
                return v5 - v15;
            }
            while( v5 < SizeOfBitMap );
            if( v15 )
            {
              v17 = v15 + v14 + 1;
              if( v17 >= 0x20 )
              {
                ++v5;
                goto LABEL_4;
              }
              v14 = v17 - 1;
            }
          }
        }
        ++v14;
        ++v5;
        if( v14 >= 0x20 )
          goto LABEL_10;
      }
    }
    v5 += 32;
LABEL_10:
    ;
  }
  return -1;
}

Referenced by: