// 
// memchr from 0x180124890 to 0x1801248fe (110 bytes)
// 
// 2 xrefs:
// > sub_18004C1A0 @ 0x18004c312
// > <???> @ 0x180202678
// 
// 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
// 

void *__cdecl memchr(const void *Buf, int Val, size_t MaxCount)
{
  __m128i v3; // xmm0
  __m128i v4; // xmm1
  __int64 v6; // rax
  unsigned __int8 v7; // al

  if ( MaxCount < 0x10 )
  {
tail_loop_start:
    if ( MaxCount )
    {
      while ( 1 )
      {
        v7 = *(_BYTE *)Buf;
        Buf = (char *)Buf + 1;
        if ( (unsigned __int8)Val == v7 )
          break;
        if ( !--MaxCount )
          return nullptr;
      }
      return (char *)Buf - 1;
    }
    else
    {
      return nullptr;
    }
  }
  else
  {
    Val = 16843009 * (unsigned __int8)Val;
    v3 = _mm_shuffle_epi32(_mm_cvtsi32_si128(Val), 0);
    while ( 1 )
    {
      v4 = _mm_loadu_si128((const __m128i *)Buf);
      Buf = (char *)Buf + 16;
      MaxCount -= 16LL;
      if ( _BitScanForward64((unsigned __int64 *)&v6, (unsigned int)_mm_movemask_epi8(_mm_cmpeq_epi8(v4, v3))) )
        return (char *)Buf + v6 - 16;
      if ( MaxCount < 0x10 )
        goto tail_loop_start;
    }
  }
}