Interrupt Handler KX023 D6 shouldthe display turn on

int __fastcall ShouldTheDisplayTurnOn(signed int a1, signed int a2, signed int a3)
{
  signed int v3; // r5
  signed int v4; // r6
  signed int v5; // r7
  int result; // r0
  int v7; // r3

  v3 = a1;
  v4 = a2;
  v5 = a3;
  if ( GetCurrentHandsUpMode() && GetIfDisplayIsOn() && !WasDisplayAllreadyTurnedOnByMovement )
  {
    result = sub_2D45C(v3, v4, v5);
    if ( result )
    {
      result = (unsigned __int8)WasDisplayAllreadyTurnedOnByMovement;
      if ( !WasDisplayAllreadyTurnedOnByMovement )
      {
        sub_33D10(0, 0, (int)PrintTimeWhenMovementistDetected, v7);
        result = 1;
        WasDisplayAllreadyTurnedOnByMovement = 1;
      }
    }
  }
  else
  {
    result = GetIfDisplayIsOn();
    if ( result )
    {
      result = 0;
      WasDisplayAllreadyTurnedOnByMovement = 0;
    }
  }
  return result;
}