MiMirrorOmitPagesFromCopy

VOID __fastcall MiMirrorOmitPagesFromCopy(INT64 a1, UINT64 a2, UINT64 a3){
  UINT64 v3; 
  UINT64 v5; 
  UINT64 v6; 
  UINT64 v7; 
  volatile signed __int32 *v8; 
  int v9; 
  UINT64 v10; 
  _DWORD *v11; 
  void *v12; 
  unsigned __int64 v13; 
  v3 = a3;
  v5 = a3;
  v6 = a2;
  v7 = a2 & 0x1F;
  v8 = (volatile signed __int32 *)(qword_140C4E468 + 4 * (a2 >> 5));
  if( v7 + v5 > 0x20 )
  {
    if( (a2 & 0x1F) != 0 )
    {
      _InterlockedAnd(v8, ~(((1 << (32 - (a2 & 0x1F))) - 1) << v7));
      v5 = v3 - (32 - (unsigned int)(a2 & 0x1F));
      ++v8;
    }
    if( v5 >= 0x20 )
    {
      v10 = v5 >> 5;
      v5 += -32i64 * (v5 >> 5);
      do
      {
        *v8++ = 0;
        --v10;
      }
      while( v10 );
    }
    if( v5 )
    {
      v9 = -1 << v5;
      goto LABEL_4;
    }
  }
  else
  {
    if( v5 != 32 )
    {
      v9 = ~(((1 << v5) - 1) << v7);
LABEL_4:
      _InterlockedAnd(v8, v9);
      goto LABEL_5;
    }
    *v8 = 0;
  }
LABEL_5:
  if( *(_QWORD *)(a1 + 24) )
    RtlClearBitsEx((INT64)qword_140C4E450, v6, v3);
  if( (*(_DWORD *)(a1 + 32) & 0x20) != 0 && v3 )
  {
    do
    {
      LODWORD(v11) = MiMapPageInHyperSpaceWorker(v6, 0i64, 0i64);
      v12 = v11;
      v13 = 1024i64;
      if( ((unsigned __int8)v11 & 4) != 0 )
      {
        *v11 = -2;
        v12 = v11 + 1;
        v13 = 1023i64;
      }
      memset64(v12, 0xFFFFFFFEFFFFFFFEui64, v13 >> 1);
      if( (v13 & 1) != 0 )
        *((_DWORD *)v12 + v13 - 1) = -2;
      MiUnmapPageInHyperSpaceWorker(v11, 0x11u, 0i64);
      ++v6;
      --v3;
    }
    while( v3 );
  }
}

Referenced by: