FL1_RT_ALTCHECK
if ((FLAGS1(lmp) & FL1_RT_ALTCHECK) == 0)
FLAGS1(lmp) |= FL1_RT_ALTCHECK;
if ((FLAGS1(lmp) & FL1_RT_ALTCHECK) == 0)
FLAGS1(lmp) |= FL1_RT_ALTCHECK;
{ MSG_ORIG(MSG_FL1_ALTCHECK), FL1_RT_ALTCHECK, FL1_RT_ALTCHECK},