208 #define BITS(n) \  macro
315             state->last = BITS(1);  in inflateBack()
317             switch (BITS(2)) {  in inflateBack()
376             state->nlen = BITS(5) + 257;  in inflateBack()
378             state->ndist = BITS(5) + 1;  in inflateBack()
380             state->ncode = BITS(4) + 4;  in inflateBack()
395                 state->lens[order[state->have++]] = (unsigned short)BITS(3);  in inflateBack()
416                     this = state->lencode[BITS(state->lenbits)];  in inflateBack()
435                         copy = 3 + BITS(2);  in inflateBack()
442                         copy = 3 + BITS(3);  in inflateBack()
449                         copy = 11 + BITS(7);  in inflateBack()
502                 this = state->lencode[BITS(state->lenbits)];  in inflateBack()
510                             (BITS(last.bits + last.op) >> last.bits)];  in inflateBack()
549                 state->length += BITS(state->extra);  in inflateBack()
556                 this = state->distcode[BITS(state->distbits)];  in inflateBack()
564                             (BITS(last.bits + last.op) >> last.bits)];  in inflateBack()
582                 state->offset += BITS(state->extra);  in inflateBack()