// 
// sub_1800013B0 from 0x1800013b0 to 0x180001531 (385 bytes)
// 
// 15 xrefs:
// > sub_180006A40 @ 0x180006b49
// > sub_180006A40 @ 0x180006bc9
// > sub_180006A40 @ 0x180006bee
// > sub_180006A40 @ 0x180006c0c
// > sub_180006A40 @ 0x180006c35
// > sub_180006A40 @ 0x180006c92
// > sub_180006A40 @ 0x180006cb7
// > sub_180006A40 @ 0x180006cdd
// > sub_180006A40 @ 0x180006d37
// > sub_180009770 @ 0x1800099a7
// > sub_180009770 @ 0x180009c21
// > <???> @ 0x18017d354
// > <???> @ 0x18017d364
// > <???> @ 0x18017d378
// > <???> @ 0x1801f609c
// 
// This function is hookable on this platform!
// 
// Using BromaIDA 8.0.0 @ https://github.com/Stazzical/BromaIDA
// Using bindings at commit ba9f177b at Thu Jul 16 22:52:06 2026 from https://github.com/geode-sdk/bindings
// 

__int64 __fastcall sub_1800013B0(__int64 a1, __int64 a2)
{
  __int64 v2; // rsi
  _DWORD *v5; // rbx
  unsigned int v6; // ecx
  __int64 v7; // rax
  __int64 v8; // rax
  int v9; // ebp
  unsigned int v10; // edx
  unsigned int v11; // r9d
  unsigned int v12; // r8d
  __int64 v13; // r9
  unsigned int v14; // r8d
  char v15; // dl
  unsigned int v16; // r8d
  unsigned int v17; // ecx
  unsigned int *v18; // rax
  unsigned int v19; // ecx
  int v20; // edx
  int v21; // edx

  v2 = *(_QWORD *)(a1 + 56);
  v5 = *(_DWORD **)a2;
  v6 = **(_DWORD **)a2 >> *(_DWORD *)(a2 + 16);
  LODWORD(v7) = *(unsigned __int16 *)(*(_QWORD *)(a1 + 48) + 2LL * (v6 & *(_DWORD *)(a1 + 112)));
  if ( (unsigned int)v7 >= 0x8000 )
  {
    v8 = v7 & 0x7FFF;
    v9 = *(__int16 *)(a1 + 98);
    v10 = __ROL4__(v6 & *(_DWORD *)(a1 + 104), 16);
    v11 = (v10 << 8) ^ ((v10 << 8) ^ (v10 >> 8)) & 0xFF00FF;
    v12 = (16 * v11) ^ ((16 * v11) ^ (v11 >> 4)) & 0xF0F0F0F;
    v13 = *(_QWORD *)(a1 + 64);
    v14 = (4 * v12) ^ ((4 * v12) ^ (v12 >> 2)) & 0x33333333;
    v15 = v9 - v8;
    v16 = (2 * v14) ^ ((2 * v14) ^ (v14 >> 1)) & 0x55555555;
    v17 = v9 - v8;
    v18 = (unsigned int *)(v13 + 4 * v8);
    v19 = v17 >> 2;
    if ( v19 )
    {
      while ( *v18 <= v16 )
      {
        if ( v18[1] > v16 )
        {
          v7 = ((__int64)v18 - v13 + 4) >> 2;
          goto LABEL_12;
        }
        if ( v18[2] > v16 )
        {
          v7 = ((__int64)v18 - v13 + 8) >> 2;
          goto LABEL_12;
        }
        if ( v18[3] > v16 )
        {
          v7 = ((__int64)v18 - v13 + 12) >> 2;
          goto LABEL_12;
        }
        v18 += 4;
        if ( !--v19 )
          goto LABEL_8;
      }
      goto LABEL_16;
    }
LABEL_8:
    v20 = v15 & 3;
    if ( v20 )
    {
      while ( *v18 <= v16 )
      {
        ++v18;
        if ( !--v20 )
          goto LABEL_11;
      }
LABEL_16:
      v7 = ((__int64)v18 - v13) >> 2;
      goto LABEL_12;
    }
LABEL_11:
    LODWORD(v7) = *(__int16 *)(a1 + 98);
  }
LABEL_12:
  v21 = *(_DWORD *)(a2 + 16) + *(char *)((v7 & 0x7FFF) + v2);
  *(_DWORD *)(a2 + 16) = (*(_BYTE *)(a2 + 16) + *(_BYTE *)((v7 & 0x7FFF) + v2)) & 7;
  *(_QWORD *)a2 = (char *)v5 + ((__int64)v21 >> 3);
  return (unsigned int)*(__int16 *)(*(_QWORD *)(a1 + 80) + 2LL * (unsigned int)(v7 - 1));
}