tf_dsr
s->tf_dsap, s->tf_duap, s->tf_dsr, s->tf_dlar, s->tf_dpar);
f->tf_dsap, f->tf_duap, f->tf_dsr, f->tf_dlar, f->tf_dpar);
if ((frame->tf_dsr & CMMU_DSR_SU) == 0)
frame->tf_exip, frame->tf_dsr, frame->tf_dlar);
if (frame->tf_dsr & CMMU_DSR_RW) {
if (frame->tf_dsr & (CMMU_DSR_SI | CMMU_DSR_PI)) {
if ((frame->tf_dsr & CMMU_DSR_RW) != 0 &&
((frame->tf_dsr & (CMMU_DSR_PI|CMMU_DSR_SI)) != 0 ||
(frame->tf_dsr & CMMU_DSR_WE) == 0)) {
frame->tf_exip, frame->tf_dsr, frame->tf_dlar);
if (frame->tf_dsr & CMMU_DSR_BE) {
if (frame->tf_dsr & (CMMU_DSR_SI | CMMU_DSR_PI)) {
if (frame->tf_dsr & (CMMU_DSR_CP | CMMU_DSR_WA)) {
if (frame->tf_dsr & CMMU_DSR_WE) {
frame->tf_dsr);