PSS_WRITE_EMPTY   311 dev/isa/pss.c  	if (inw(pss_base+PSS_STATUS) & PSS_WRITE_EMPTY) {
PSS_WRITE_EMPTY  1267 dev/isa/pss.c      if (sr & (PSS_WRITE_EMPTY|PSS_READ_FULL|PSS_IRQ|PSS_DMQ_TC)) {