int __fastcall sub_402ED2(int a1, _BYTE *a2, unsigned int a3)
{
  int result; // r0

  if ( a3 == 0xFFFF )
  {
    a3 = 0;
  }
  else if ( a3 > 0x1F )
  {
    return 7;
  }
  result = ((int (__fastcall *)(_BYTE *, int, unsigned int))loc_40274C)(a1: a2, a2: a1, a3);
  if ( result == 0 )
  {
    *a2 = 1;
    return 0;
  }
  return result;
}