PL_STATUS_A
((inpw(PLC(np,PL_STATUS_A)) & PLC_REV_MASK) ==
switch (inpw(PLC(np,PL_STATUS_A)) & PL_LINE_ST) {
rev = inpw(PLC(p,PL_STATUS_A)) & PLC_REV_MASK ;
state = inpw(PLC(phy,PL_STATUS_A)) & PL_LINE_ST ;
plc_rev = inpw(PLC(np,PL_STATUS_A)) & PLC_REV_MASK ;
if (((inpw(PLC(np,PL_STATUS_A)) & PLC_REV_MASK) !=