AHC_EXTENDED_TRANS_A
ahc->flags |= AHC_EXTENDED_TRANS_A|AHC_EXTENDED_TRANS_B;
ahc->flags |= AHC_EXTENDED_TRANS_A;
ahc->flags |= AHC_EXTENDED_TRANS_A|AHC_EXTENDED_TRANS_B|
extended = (ahc->flags & AHC_EXTENDED_TRANS_A) != 0;
ahc->flags |= AHC_EXTENDED_TRANS_A;