signed int __fastcall Aska::TriListComp::DecodeByHighWatermark(__int64 this, unsigned __int16 *a3, unsigned int a4, unsigned int a5, unsigned __int16 a6)
{
  const signed __int8 *v5; // r6
  unsigned int v6; // r4
  int v7; // r5
  unsigned int v8; // r7
  signed int v9; // r4
  unsigned int v10; // r6
  int v11; // r5
  unsigned int v12; // r8
  unsigned int v13; // r0
  unsigned int v14; // r6
  int *v15; // r1
  unsigned int *v16; // r0
  unsigned int *v17; // r0
  unsigned __int16 v19; // [sp+2h] [bp-7Eh]
  _DWORD (__fastcall **v20)(Aska::StaticStream *__hidden); // [sp+4h] [bp-7Ch]
  __int64 v21; // [sp+8h] [bp-78h]
  __int64 v22; // [sp+10h] [bp-70h]
  int v23; // [sp+18h] [bp-68h]
  int (**v24)(); // [sp+2Ch] [bp-54h]
  __int64 v25; // [sp+30h] [bp-50h]
  __int64 v26; // [sp+38h] [bp-48h]
  int v27; // [sp+40h] [bp-40h]
  int v28; // [sp+44h] [bp-3Ch]

  v5 = (const signed __int8 *)HIDWORD(this);
  v6 = a4;
  v24 = &off_1FE0FC0;
  v25 = 0LL;
  v26 = 0LL;
  v27 = 8;
  v28 = 0;
  HIDWORD(this) = (unsigned int)a3 >> 1;
  if ( (_DWORD)this )
  {
    v25 = this;
    LODWORD(v26) = (unsigned int)a3 >> 1;
  }
  else
  {
    Aska::TArray<unsigned short,false>::Resize(&v24, HIDWORD(this), 0);
  }
  v7 = 0;
  v20 = off_1FE09A0;
  v21 = 0LL;
  v22 = 0LL;
  v23 = 0;
  Aska::StaticStream::Open((Aska::StaticStream *)&v20, v5, v6);
  v8 = v26;
  v9 = 1;
  if ( a5 == 0xFFFF )
  {
    if ( (_DWORD)v26 )
    {
      v14 = 0;
      do
      {
        v19 = *(_WORD *)(v25 + v7);
        v9 = 0;
        if ( Aska::StaticStream::Write((Aska::StaticStream *)&v20, &v19, 2u, 1u) != 1 )
          break;
        ++v14;
        v7 += 2;
        v9 = 1;
      }
      while ( v14 < v8 );
    }
  }
  else if ( (_DWORD)v26 )
  {
    LOWORD(v10) = a5 - 1;
    v11 = 0;
    v12 = 0;
    v9 = 1;
    while ( 1 )
    {
      v19 = v10 - *(_WORD *)(v25 + v11);
      if ( Aska::StaticStream::Write((Aska::StaticStream *)&v20, &v19, 2u, 1u) != 1 )
        break;
      v13 = (unsigned __int16)v10;
      v11 += 2;
      ++v12;
      v10 = v19 + a5;
      if ( v13 > v10 )
        LOWORD(v10) = v13;
      if ( v12 >= v8 )
        goto LABEL_18;
    }
    v9 = 0;
  }
LABEL_18:
  v15 = (int *)0xFFFFB888;
  v20 = off_1FE09A0;
  v16 = (unsigned int *)HIDWORD(v22);
  if ( !HIDWORD(v22) )
    goto LABEL_37;
  __dmb(0xBu);
  do
    v15 = (int *)__ldrex(v16);
  while ( __strex((unsigned int)v15 - 1, v16) );
  __dmb(0xBu);
  if ( v15 == (int *)((char *)&dword_0 + 1) )
  {
LABEL_37:
    if ( (_DWORD)v22 )
      operator delete[]((void *)v22);
    if ( HIDWORD(v22) )
      Aska::TSharedPointerCode::DeleteCounter((Aska::TSharedPointerCode *)HIDWORD(v22), v15);
  }
  v22 = 0LL;
  v17 = (unsigned int *)HIDWORD(v21);
  if ( !HIDWORD(v21) )
    goto LABEL_38;
  __dmb(0xBu);
  do
    v15 = (int *)__ldrex(v17);
  while ( __strex((unsigned int)v15 - 1, v17) );
  __dmb(0xBu);
  if ( v15 == (int *)((char *)&dword_0 + 1) )
  {
LABEL_38:
    if ( (_DWORD)v21 )
      operator delete[]((void *)v21);
    if ( HIDWORD(v21) )
      Aska::TSharedPointerCode::DeleteCounter((Aska::TSharedPointerCode *)HIDWORD(v21), v15);
  }
  return v9;
}