LSR_FE
#define LSR_ANYE (LSR_OE|LSR_PE|LSR_FE|LSR_BE)
if (lsr & (LSR_BE | LSR_FE | LSR_PE)) {
if (lsr & (LSR_BI | LSR_FE | LSR_PE)) {
if (ISSET(lsr, LSR_OE | LSR_BI | LSR_FE | LSR_PE)) {
if (ISSET(lsr, LSR_BI | LSR_FE))