301     int dist;     /* distance index */  in tr_static_init()  local
332     dist = 0;  in tr_static_init()
334         base_dist[code] = dist;  in tr_static_init()
336             _dist_code[dist++] = (uch)code;  in tr_static_init()
339     Assert (dist == 256, "tr_static_init: dist != 256");  in tr_static_init()
340     dist >>= 7; /* from now on, all distances are divided by 128 */  in tr_static_init()
342         base_dist[code] = dist << 7;  in tr_static_init()
344             _dist_code[256 + dist++] = (uch)code;  in tr_static_init()
347     Assert (dist == 256, "tr_static_init: 256 + dist != 512");  in tr_static_init()
900     unsigned dist;      /* distance of matched string */  in compress_block()  local
908         dist = s->d_buf[sx];  in compress_block()
911         dist = s->sym_buf[sx++] & 0xff;  in compress_block()
912         dist += (unsigned)(s->sym_buf[sx++] & 0xff) << 8;  in compress_block()
915         if (dist == 0) {  in compress_block()
927             dist--; /* dist is now the match distance - 1 */  in compress_block()
928             code = d_code(dist);  in compress_block()
934                 dist -= (unsigned)base_dist[code];  in compress_block()
935                 send_bits(s, dist, extra);   /* send the extra distance bits */  in compress_block()
1093 int ZLIB_INTERNAL _tr_tally(deflate_state *s, unsigned dist, unsigned lc) {  argument
1095     s->d_buf[s->sym_next] = (ush)dist;
1098     s->sym_buf[s->sym_next++] = (uch)dist;
1099     s->sym_buf[s->sym_next++] = (uch)(dist >> 8);
1102     if (dist == 0) {
1108         dist--;             /* dist = match distance - 1 */
1109         Assert((ush)dist < (ush)MAX_DIST(s) &&
1111                (ush)d_code(dist) < (ush)D_CODES,  "_tr_tally: bad match");
1114         s->dyn_dtree[d_code(dist)].Freq++;