__int64 __fastcall sub_5B28(int a1, _DWORD *a2, int a3, int a4)
{
  __int64 v5; // rax
  __int64 v6; // rdi

  v5 = sub_5A28(a1, (_DWORD)a2, a3, a4, (__int64)a2); /*0x5b3a*/
  v6 = v5; /*0x5b3f*/
  if ( v5 < 0 ) /*0x5b45*/
  {
    sub_5408(0x80000000LL, "\nASSERT_EFI_ERROR (Status = %r)\n", v5); /*0x5b56*/
    sub_5450( /*0x5b6e*/
      (__int64)"e:\\hs\\PurleySktPkg\\SouthClusterLbg\\Library\\PeiDxeSmmGpioLib\\GpioLib.c",
      935,
      (__int64)"!EFI_ERROR (Status)");
  }
  *a2 >>= 1; /*0x5b73*/
  return v6; /*0x5b7d*/
}