// 
// getSystemCP from 0x18013a2a8 to 0x18013a325 (125 bytes)
// 
// 3 xrefs:
// > setmbcp_internal @ 0x18013a5c7
// > _setmbcp_nolock @ 0x18013a8b6
// > <???> @ 0x18020383c
// 
// 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 getSystemCP(UINT a1)
{
  UINT OEMCP; // eax
  _QWORD v4[3]; // [rsp+20h] [rbp-28h] BYREF
  char v5; // [rsp+38h] [rbp-10h]

  _LocaleUpdate::_LocaleUpdate((_LocaleUpdate *)v4, nullptr);
  dword_1801F55D8 = 0;
  switch ( a1 )
  {
    case 0xFFFFFFFE:
      dword_1801F55D8 = 1;
      OEMCP = GetOEMCP();
LABEL_5:
      a1 = OEMCP;
      break;
    case 0xFFFFFFFD:
      dword_1801F55D8 = 1;
      OEMCP = GetACP();
      goto LABEL_5;
    case 0xFFFFFFFC:
      dword_1801F55D8 = 1;
      a1 = *(_DWORD *)(v4[1] + 12LL);
      break;
  }
  if ( v5 )
    *(_DWORD *)(v4[0] + 936LL) &= ~2u;
  return a1;
}