35 static int ac_get_range_bits(const struct lc3_bits_ac *ac)  in ac_get_range_bits()  argument
39     for (unsigned r = ac->range; r; r >>= 1, nbits++);  in ac_get_range_bits()
49 static int ac_get_pending_bits(const struct lc3_bits_ac *ac)  in ac_get_pending_bits()  argument
51     return 26 - ac_get_range_bits(ac) +  in ac_get_pending_bits()
52         ((ac->cache >= 0) + ac->carry_count) * 8;  in ac_get_pending_bits()
64     const struct lc3_bits_ac *ac = &bits->ac;  in get_bits_left()  local
74     return 8 * n - (accu->n + accu->nover + ac_get_pending_bits(ac));  in get_bits_left()
88         .ac = {  in lc3_setup_bits()
99         struct lc3_bits_ac *ac = &bits->ac;  in lc3_setup_bits()  local
103         ac->low  = ac_get(buffer) << 16;  in lc3_setup_bits()
104         ac->low |= ac_get(buffer) <<  8;  in lc3_setup_bits()
105         ac->low |= ac_get(buffer);  in lc3_setup_bits()
124     const struct lc3_bits_ac *ac = &bits->ac;  in lc3_check_bits()  local
126     return -(get_bits_left(bits) < 0 || ac->error);  in lc3_check_bits()
171     struct lc3_bits_ac *ac, struct lc3_bits_buffer *buffer)  in ac_shift()  argument
173     if (ac->low < 0xff0000 || ac->carry)  in ac_shift()
175         if (ac->cache >= 0)  in ac_shift()
176             ac_put(buffer, ac->cache + ac->carry);  in ac_shift()
178         for ( ; ac->carry_count > 0; ac->carry_count--)  in ac_shift()
179             ac_put(buffer, ac->carry ? 0x00 : 0xff);  in ac_shift()
181          ac->cache = ac->low >> 16;  in ac_shift()
182          ac->carry = 0;  in ac_shift()
185          ac->carry_count++;  in ac_shift()
187     ac->low = (ac->low << 8) & 0xffffff;  in ac_shift()
196 static void ac_terminate(struct lc3_bits_ac *ac,  in ac_terminate()  argument
199     int nbits = 25 - ac_get_range_bits(ac);  in ac_terminate()
201     unsigned val  = ac->low + mask;  in ac_terminate()
202     unsigned high = ac->low + ac->range;  in ac_terminate()
215             val = ((ac->low + mask) & 0xffffff) & ~mask;  in ac_terminate()
218         ac->carry |= val < ac->low;  in ac_terminate()
221     ac->low = val;  in ac_terminate()
224         ac_shift(ac, buffer);  in ac_terminate()
225     ac_shift(ac, buffer);  in ac_terminate()
227     int end_val = ac->cache >> (8 - nbits);  in ac_terminate()
229     if (ac->carry_count) {  in ac_terminate()
230         ac_put(buffer, ac->cache);  in ac_terminate()
231         for ( ; ac->carry_count > 1; ac->carry_count--)  in ac_terminate()
248     struct lc3_bits_ac *ac = &bits->ac;  in lc3_flush_bits()  local
258     ac_terminate(ac, buffer);  in lc3_flush_bits()
290     struct lc3_bits_ac *ac = &bits->ac;  in lc3_ac_write_renorm()  local
292     for ( ; ac->range < 0x10000; ac->range <<= 8)  in lc3_ac_write_renorm()
293         ac_shift(ac, &bits->buffer);  in lc3_ac_write_renorm()
371     struct lc3_bits_ac *ac = &bits->ac;  in lc3_ac_read_renorm()  local
373     for ( ; ac->range < 0x10000; ac->range <<= 8)  in lc3_ac_read_renorm()
374         ac->low = ((ac->low << 8) | ac_get(&bits->buffer)) & 0xffffff;  in lc3_ac_read_renorm()