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[/] [mkjpeg/] [trunk/] [design/] [huffman/] [AC_CR_ROM.vhd] - Blame information for rev 36

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Line No. Rev Author Line
1 36 mikel262 
-------------------------------------------------------------------------------
2 
-- File Name :  AC_CR_ROM.vhd
3 
--
4 
-- Project   : JPEG_ENC
5 
--
6 
-- Module    : AC_CR_ROM
7 
--
8 
-- Content   : AC_CR_ROM Chrominance
9 
--
10 
-- Description :
11 
--
12 
-- Spec.     :
13 
--
14 
-- Author    : Michal Krepa
15 
--
16 
-------------------------------------------------------------------------------
17 
-- History :
18 
-- 20090329: (MK): Initial Creation.
19 
-------------------------------------------------------------------------------
20 
 
21 
-------------------------------------------------------------------------------
22 
-------------------------------------------------------------------------------
23 
----------------------------------- LIBRARY/PACKAGE ---------------------------
24 
-------------------------------------------------------------------------------
25 
-------------------------------------------------------------------------------
26 
 
27 
-------------------------------------------------------------------------------
28 
-- generic packages/libraries:
29 
-------------------------------------------------------------------------------
30 
library ieee;
31 
  use ieee.std_logic_1164.all;
32 
  use ieee.numeric_std.all;
33 
 
34 
-------------------------------------------------------------------------------
35 
-- user packages/libraries:
36 
-------------------------------------------------------------------------------
37 
 
38 
-------------------------------------------------------------------------------
39 
-------------------------------------------------------------------------------
40 
----------------------------------- ENTITY ------------------------------------
41 
-------------------------------------------------------------------------------
42 
-------------------------------------------------------------------------------
43 
entity AC_CR_ROM is
44 
  port
45 
  (
46 
        CLK                : in  std_logic;
47 
        RST                : in  std_logic;
48 
        runlength          : in  std_logic_vector(3 downto 0);
49 
        VLI_size           : in  std_logic_vector(3 downto 0);
50 
 
51 
        VLC_AC_size        : out unsigned(4 downto 0);
52 
        VLC_AC             : out unsigned(15 downto 0)
53 
    );
54 
end entity AC_CR_ROM;
55 
 
56 
-------------------------------------------------------------------------------
57 
-------------------------------------------------------------------------------
58 
----------------------------------- ARCHITECTURE ------------------------------
59 
-------------------------------------------------------------------------------
60 
-------------------------------------------------------------------------------
61 
architecture RTL of AC_CR_ROM is
62 
 
63 
  signal rom_addr : std_logic_vector(7 downto 0);
64 
 
65 
-------------------------------------------------------------------------------
66 
-- Architecture: begin
67 
-------------------------------------------------------------------------------
68 
begin
69 
 
70 
  rom_addr <= runlength & VLI_size;
71 
 
72 
  -------------------------------------------------------------------
73 
  -- AC-ROM
74 
  -------------------------------------------------------------------
75 
  p_AC_CR_ROM : process(CLK, RST)
76 
  begin
77 
    if RST = '1' then
78 
      VLC_AC_size <= (others => '0');
79 
      VLC_AC      <= (others => '0');
80 
    elsif CLK'event and CLK = '1' then
81 
      case runlength is
82 
        when X"0" =>
83 
 
84 
          case VLI_size is
85 
            when X"0" =>
86 
              VLC_AC_size <= to_unsigned(2, VLC_AC_size'length);
87 
              VLC_AC      <= resize("00", VLC_AC'length);
88 
            when X"1" =>
89 
              VLC_AC_size <= to_unsigned(2, VLC_AC_size'length);
90 
              VLC_AC      <= resize("01", VLC_AC'length);
91 
            when X"2" =>
92 
              VLC_AC_size <= to_unsigned(3, VLC_AC_size'length);
93 
              VLC_AC      <= resize("100", VLC_AC'length);
94 
            when X"3" =>
95 
              VLC_AC_size <= to_unsigned(4, VLC_AC_size'length);
96 
              VLC_AC      <= resize("1010", VLC_AC'length);
97 
            when X"4" =>
98 
              VLC_AC_size <= to_unsigned(5, VLC_AC_size'length);
99 
              VLC_AC      <= resize("11000", VLC_AC'length);
100 
            when X"5" =>
101 
              VLC_AC_size <= to_unsigned(5, VLC_AC_size'length);
102 
              VLC_AC      <= resize("11001", VLC_AC'length);
103 
            when X"6" =>
104 
              VLC_AC_size <= to_unsigned(6, VLC_AC_size'length);
105 
              VLC_AC      <= resize("111000", VLC_AC'length);
106 
            when X"7" =>
107 
              VLC_AC_size <= to_unsigned(7, VLC_AC_size'length);
108 
              VLC_AC      <= resize("1111000", VLC_AC'length);
109 
            when X"8" =>
110 
              VLC_AC_size <= to_unsigned(9, VLC_AC_size'length);
111 
              VLC_AC      <= resize("111110100", VLC_AC'length);
112 
            when X"9" =>
113 
              VLC_AC_size <= to_unsigned(10, VLC_AC_size'length);
114 
              VLC_AC      <= resize("1111110110", VLC_AC'length);
115 
            when X"A" =>
116 
              VLC_AC_size <= to_unsigned(12, VLC_AC_size'length);
117 
              VLC_AC      <= resize("111111110100", VLC_AC'length);
118 
            when others =>
119 
              VLC_AC_size <= to_unsigned(0, VLC_AC_size'length);
120 
              VLC_AC      <= resize("0", VLC_AC'length);
121 
          end case;
122 
 
123 
        when X"1" =>
124 
 
125 
          case VLI_size is
126 
            when X"1" =>
127 
              VLC_AC_size <= to_unsigned(4, VLC_AC_size'length);
128 
              VLC_AC      <= resize("1011", VLC_AC'length);
129 
            when X"2" =>
130 
              VLC_AC_size <= to_unsigned(6, VLC_AC_size'length);
131 
              VLC_AC      <= resize("111001", VLC_AC'length);
132 
            when X"3" =>
133 
              VLC_AC_size <= to_unsigned(8, VLC_AC_size'length);
134 
              VLC_AC      <= resize("11110110", VLC_AC'length);
135 
            when X"4" =>
136 
              VLC_AC_size <= to_unsigned(9, VLC_AC_size'length);
137 
              VLC_AC      <= resize("111110101", VLC_AC'length);
138 
            when X"5" =>
139 
              VLC_AC_size <= to_unsigned(11, VLC_AC_size'length);
140 
              VLC_AC      <= resize("11111110110", VLC_AC'length);
141 
            when X"6" =>
142 
              VLC_AC_size <= to_unsigned(12, VLC_AC_size'length);
143 
              VLC_AC      <= resize("111111110101", VLC_AC'length);
144 
            when X"7" =>
145 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
146 
              VLC_AC      <= resize("1111111110001000", VLC_AC'length);
147 
            when X"8" =>
148 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
149 
              VLC_AC      <= resize("1111111110001001", VLC_AC'length);
150 
            when X"9" =>
151 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
152 
              VLC_AC      <= resize("1111111110001010", VLC_AC'length);
153 
            when X"A" =>
154 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
155 
              VLC_AC      <= resize("1111111110001011", VLC_AC'length);
156 
            when others =>
157 
              VLC_AC_size <= to_unsigned(0, VLC_AC_size'length);
158 
              VLC_AC      <= resize("0", VLC_AC'length);
159 
          end case;
160 
 
161 
        when X"2" =>
162 
 
163 
          case VLI_size is
164 
            when X"1" =>
165 
              VLC_AC_size <= to_unsigned(5, VLC_AC_size'length);
166 
              VLC_AC      <= resize("11010", VLC_AC'length);
167 
            when X"2" =>
168 
              VLC_AC_size <= to_unsigned(8, VLC_AC_size'length);
169 
              VLC_AC      <= resize("11110111", VLC_AC'length);
170 
            when X"3" =>
171 
              VLC_AC_size <= to_unsigned(10, VLC_AC_size'length);
172 
              VLC_AC      <= resize("1111110111", VLC_AC'length);
173 
            when X"4" =>
174 
              VLC_AC_size <= to_unsigned(12, VLC_AC_size'length);
175 
              VLC_AC      <= resize("111111110110", VLC_AC'length);
176 
            when X"5" =>
177 
              VLC_AC_size <= to_unsigned(15, VLC_AC_size'length);
178 
              VLC_AC      <= resize("111111111000010", VLC_AC'length);
179 
            when X"6" =>
180 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
181 
              VLC_AC      <= resize("1111111110001100", VLC_AC'length);
182 
            when X"7" =>
183 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
184 
              VLC_AC      <= resize("1111111110001101", VLC_AC'length);
185 
            when X"8" =>
186 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
187 
              VLC_AC      <= resize("1111111110001110", VLC_AC'length);
188 
            when X"9" =>
189 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
190 
              VLC_AC      <= resize("1111111110001111", VLC_AC'length);
191 
            when X"A" =>
192 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
193 
              VLC_AC      <= resize("1111111110010000", VLC_AC'length);
194 
            when others =>
195 
              VLC_AC_size <= to_unsigned(0, VLC_AC_size'length);
196 
              VLC_AC      <= resize("0", VLC_AC'length);
197 
          end case;
198 
 
199 
        when X"3" =>
200 
 
201 
          case VLI_size is
202 
            when X"1" =>
203 
              VLC_AC_size <= to_unsigned(5, VLC_AC_size'length);
204 
              VLC_AC      <= resize("11011", VLC_AC'length);
205 
            when X"2" =>
206 
              VLC_AC_size <= to_unsigned(8, VLC_AC_size'length);
207 
              VLC_AC      <= resize("11111000", VLC_AC'length);
208 
            when X"3" =>
209 
              VLC_AC_size <= to_unsigned(10, VLC_AC_size'length);
210 
              VLC_AC      <= resize("1111111000", VLC_AC'length);
211 
            when X"4" =>
212 
              VLC_AC_size <= to_unsigned(12, VLC_AC_size'length);
213 
              VLC_AC      <= resize("111111110111", VLC_AC'length);
214 
            when X"5" =>
215 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
216 
              VLC_AC      <= resize("1111111110010001", VLC_AC'length);
217 
            when X"6" =>
218 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
219 
              VLC_AC      <= resize("1111111110010010", VLC_AC'length);
220 
            when X"7" =>
221 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
222 
              VLC_AC      <= resize("1111111110010011", VLC_AC'length);
223 
            when X"8" =>
224 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
225 
              VLC_AC      <= resize("1111111110010100", VLC_AC'length);
226 
            when X"9" =>
227 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
228 
              VLC_AC      <= resize("1111111110010101", VLC_AC'length);
229 
            when X"A" =>
230 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
231 
              VLC_AC      <= resize("1111111110010110", VLC_AC'length);
232 
            when others =>
233 
              VLC_AC_size <= to_unsigned(0, VLC_AC_size'length);
234 
              VLC_AC      <= resize("0", VLC_AC'length);
235 
          end case;
236 
 
237 
        when X"4" =>
238 
 
239 
          case VLI_size is
240 
            when X"1" =>
241 
              VLC_AC_size <= to_unsigned(6, VLC_AC_size'length);
242 
              VLC_AC      <= resize("111010", VLC_AC'length);
243 
            when X"2" =>
244 
              VLC_AC_size <= to_unsigned(9, VLC_AC_size'length);
245 
              VLC_AC      <= resize("111110110", VLC_AC'length);
246 
            when X"3" =>
247 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
248 
              VLC_AC      <= resize("1111111110010111", VLC_AC'length);
249 
            when X"4" =>
250 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
251 
              VLC_AC      <= resize("1111111110011000", VLC_AC'length);
252 
            when X"5" =>
253 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
254 
              VLC_AC      <= resize("1111111110011001", VLC_AC'length);
255 
            when X"6" =>
256 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
257 
              VLC_AC      <= resize("1111111110011010", VLC_AC'length);
258 
            when X"7" =>
259 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
260 
              VLC_AC      <= resize("1111111110011011", VLC_AC'length);
261 
            when X"8" =>
262 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
263 
              VLC_AC      <= resize("1111111110011100", VLC_AC'length);
264 
            when X"9" =>
265 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
266 
              VLC_AC      <= resize("1111111110011101", VLC_AC'length);
267 
            when X"A" =>
268 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
269 
              VLC_AC      <= resize("1111111110011110", VLC_AC'length);
270 
            when others =>
271 
              VLC_AC_size <= to_unsigned(0, VLC_AC_size'length);
272 
              VLC_AC      <= resize("0", VLC_AC'length);
273 
          end case;
274 
 
275 
        when X"5" =>
276 
 
277 
          case VLI_size is
278 
            when X"1" =>
279 
              VLC_AC_size <= to_unsigned(6, VLC_AC_size'length);
280 
              VLC_AC      <= resize("111011", VLC_AC'length);
281 
            when X"2" =>
282 
              VLC_AC_size <= to_unsigned(10, VLC_AC_size'length);
283 
              VLC_AC      <= resize("1111111001", VLC_AC'length);
284 
            when X"3" =>
285 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
286 
              VLC_AC      <= resize("1111111110011111", VLC_AC'length);
287 
            when X"4" =>
288 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
289 
              VLC_AC      <= resize("1111111110100000", VLC_AC'length);
290 
            when X"5" =>
291 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
292 
              VLC_AC      <= resize("1111111110100001", VLC_AC'length);
293 
            when X"6" =>
294 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
295 
              VLC_AC      <= resize("1111111110100010", VLC_AC'length);
296 
            when X"7" =>
297 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
298 
              VLC_AC      <= resize("1111111110100011", VLC_AC'length);
299 
            when X"8" =>
300 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
301 
              VLC_AC      <= resize("1111111110100100", VLC_AC'length);
302 
            when X"9" =>
303 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
304 
              VLC_AC      <= resize("1111111110100101", VLC_AC'length);
305 
            when X"A" =>
306 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
307 
              VLC_AC      <= resize("1111111110100110", VLC_AC'length);
308 
            when others =>
309 
              VLC_AC_size <= to_unsigned(0, VLC_AC_size'length);
310 
              VLC_AC      <= resize("0", VLC_AC'length);
311 
          end case;
312 
 
313 
        when X"6" =>
314 
 
315 
          case VLI_size is
316 
            when X"1" =>
317 
              VLC_AC_size <= to_unsigned(7, VLC_AC_size'length);
318 
              VLC_AC      <= resize("1111001", VLC_AC'length);
319 
            when X"2" =>
320 
              VLC_AC_size <= to_unsigned(11, VLC_AC_size'length);
321 
              VLC_AC      <= resize("11111110111", VLC_AC'length);
322 
            when X"3" =>
323 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
324 
              VLC_AC      <= resize("1111111110100111", VLC_AC'length);
325 
            when X"4" =>
326 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
327 
              VLC_AC      <= resize("1111111110101000", VLC_AC'length);
328 
            when X"5" =>
329 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
330 
              VLC_AC      <= resize("1111111110101001", VLC_AC'length);
331 
            when X"6" =>
332 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
333 
              VLC_AC      <= resize("1111111110101010", VLC_AC'length);
334 
            when X"7" =>
335 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
336 
              VLC_AC      <= resize("1111111110101011", VLC_AC'length);
337 
            when X"8" =>
338 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
339 
              VLC_AC      <= resize("1111111110101100", VLC_AC'length);
340 
            when X"9" =>
341 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
342 
              VLC_AC      <= resize("1111111110101101", VLC_AC'length);
343 
            when X"A" =>
344 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
345 
              VLC_AC      <= resize("1111111110101110", VLC_AC'length);
346 
            when others =>
347 
              VLC_AC_size <= to_unsigned(0, VLC_AC_size'length);
348 
              VLC_AC      <= resize("0", VLC_AC'length);
349 
          end case;
350 
 
351 
        when X"7" =>
352 
 
353 
          case VLI_size is
354 
            when X"1" =>
355 
              VLC_AC_size <= to_unsigned(7, VLC_AC_size'length);
356 
              VLC_AC      <= resize("1111010", VLC_AC'length);
357 
            when X"2" =>
358 
              VLC_AC_size <= to_unsigned(11, VLC_AC_size'length);
359 
              VLC_AC      <= resize("11111111000", VLC_AC'length);
360 
            when X"3" =>
361 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
362 
              VLC_AC      <= resize("1111111110101111", VLC_AC'length);
363 
            when X"4" =>
364 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
365 
              VLC_AC      <= resize("1111111110110000", VLC_AC'length);
366 
            when X"5" =>
367 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
368 
              VLC_AC      <= resize("1111111110110001", VLC_AC'length);
369 
            when X"6" =>
370 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
371 
              VLC_AC      <= resize("1111111110110010", VLC_AC'length);
372 
            when X"7" =>
373 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
374 
              VLC_AC      <= resize("1111111110110011", VLC_AC'length);
375 
            when X"8" =>
376 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
377 
              VLC_AC      <= resize("1111111110110100", VLC_AC'length);
378 
            when X"9" =>
379 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
380 
              VLC_AC      <= resize("1111111110110101", VLC_AC'length);
381 
            when X"A" =>
382 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
383 
              VLC_AC      <= resize("1111111110110110", VLC_AC'length);
384 
            when others =>
385 
              VLC_AC_size <= to_unsigned(0, VLC_AC_size'length);
386 
              VLC_AC      <= resize("0", VLC_AC'length);
387 
          end case;
388 
 
389 
        when X"8" =>
390 
 
391 
          case VLI_size is
392 
            when X"1" =>
393 
              VLC_AC_size <= to_unsigned(8, VLC_AC_size'length);
394 
              VLC_AC      <= resize("11111001", VLC_AC'length);
395 
            when X"2" =>
396 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
397 
              VLC_AC      <= resize("1111111110110111", VLC_AC'length);
398 
            when X"3" =>
399 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
400 
              VLC_AC      <= resize("1111111110111000", VLC_AC'length);
401 
            when X"4" =>
402 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
403 
              VLC_AC      <= resize("1111111110111001", VLC_AC'length);
404 
            when X"5" =>
405 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
406 
              VLC_AC      <= resize("1111111110111010", VLC_AC'length);
407 
            when X"6" =>
408 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
409 
              VLC_AC      <= resize("1111111110111011", VLC_AC'length);
410 
            when X"7" =>
411 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
412 
              VLC_AC      <= resize("1111111110111100", VLC_AC'length);
413 
            when X"8" =>
414 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
415 
              VLC_AC      <= resize("1111111110111101", VLC_AC'length);
416 
            when X"9" =>
417 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
418 
              VLC_AC      <= resize("1111111110111110", VLC_AC'length);
419 
            when X"A" =>
420 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
421 
              VLC_AC      <= resize("1111111110111111", VLC_AC'length);
422 
            when others =>
423 
              VLC_AC_size <= to_unsigned(0, VLC_AC_size'length);
424 
              VLC_AC      <= resize("0", VLC_AC'length);
425 
          end case;
426 
 
427 
        when X"9" =>
428 
 
429 
          case VLI_size is
430 
            when X"1" =>
431 
              VLC_AC_size <= to_unsigned(9, VLC_AC_size'length);
432 
              VLC_AC      <= resize("111110111", VLC_AC'length);
433 
            when X"2" =>
434 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
435 
              VLC_AC      <= resize("1111111111000000", VLC_AC'length);
436 
            when X"3" =>
437 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
438 
              VLC_AC      <= resize("1111111111000001", VLC_AC'length);
439 
            when X"4" =>
440 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
441 
              VLC_AC      <= resize("1111111111000010", VLC_AC'length);
442 
            when X"5" =>
443 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
444 
              VLC_AC      <= resize("1111111111000011", VLC_AC'length);
445 
            when X"6" =>
446 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
447 
              VLC_AC      <= resize("1111111111000100", VLC_AC'length);
448 
            when X"7" =>
449 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
450 
              VLC_AC      <= resize("1111111111000101", VLC_AC'length);
451 
            when X"8" =>
452 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
453 
              VLC_AC      <= resize("1111111111000110", VLC_AC'length);
454 
            when X"9" =>
455 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
456 
              VLC_AC      <= resize("1111111111000111", VLC_AC'length);
457 
            when X"A" =>
458 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
459 
              VLC_AC      <= resize("1111111111001000", VLC_AC'length);
460 
            when others =>
461 
              VLC_AC_size <= to_unsigned(0, VLC_AC_size'length);
462 
              VLC_AC      <= resize("0", VLC_AC'length);
463 
          end case;
464 
 
465 
        when X"A" =>
466 
 
467 
          case VLI_size is
468 
            when X"1" =>
469 
              VLC_AC_size <= to_unsigned(9, VLC_AC_size'length);
470 
              VLC_AC      <= resize("111111000", VLC_AC'length);
471 
            when X"2" =>
472 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
473 
              VLC_AC      <= resize("1111111111001001", VLC_AC'length);
474 
            when X"3" =>
475 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
476 
              VLC_AC      <= resize("1111111111001010", VLC_AC'length);
477 
            when X"4" =>
478 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
479 
              VLC_AC      <= resize("1111111111001011", VLC_AC'length);
480 
            when X"5" =>
481 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
482 
              VLC_AC      <= resize("1111111111001100", VLC_AC'length);
483 
            when X"6" =>
484 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
485 
              VLC_AC      <= resize("1111111111001101", VLC_AC'length);
486 
            when X"7" =>
487 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
488 
              VLC_AC      <= resize("1111111111001110", VLC_AC'length);
489 
            when X"8" =>
490 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
491 
              VLC_AC      <= resize("1111111111001111", VLC_AC'length);
492 
            when X"9" =>
493 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
494 
              VLC_AC      <= resize("1111111111010000", VLC_AC'length);
495 
            when X"A" =>
496 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
497 
              VLC_AC      <= resize("1111111111010001", VLC_AC'length);
498 
            when others =>
499 
              VLC_AC_size <= to_unsigned(0, VLC_AC_size'length);
500 
              VLC_AC      <= resize("0", VLC_AC'length);
501 
          end case;
502 
 
503 
        when X"B" =>
504 
 
505 
          case VLI_size is
506 
            when X"1" =>
507 
              VLC_AC_size <= to_unsigned(9, VLC_AC_size'length);
508 
              VLC_AC      <= resize("111111001", VLC_AC'length);
509 
            when X"2" =>
510 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
511 
              VLC_AC      <= resize("1111111111010010", VLC_AC'length);
512 
            when X"3" =>
513 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
514 
              VLC_AC      <= resize("1111111111010011", VLC_AC'length);
515 
            when X"4" =>
516 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
517 
              VLC_AC      <= resize("1111111111010100", VLC_AC'length);
518 
            when X"5" =>
519 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
520 
              VLC_AC      <= resize("1111111111010101", VLC_AC'length);
521 
            when X"6" =>
522 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
523 
              VLC_AC      <= resize("1111111111010110", VLC_AC'length);
524 
            when X"7" =>
525 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
526 
              VLC_AC      <= resize("1111111111010111", VLC_AC'length);
527 
            when X"8" =>
528 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
529 
              VLC_AC      <= resize("1111111111011000", VLC_AC'length);
530 
            when X"9" =>
531 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
532 
              VLC_AC      <= resize("1111111111011001", VLC_AC'length);
533 
            when X"A" =>
534 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
535 
              VLC_AC      <= resize("1111111111011010", VLC_AC'length);
536 
            when others =>
537 
              VLC_AC_size <= to_unsigned(0, VLC_AC_size'length);
538 
              VLC_AC      <= resize("0", VLC_AC'length);
539 
          end case;
540 
 
541 
        when X"C" =>
542 
 
543 
          case VLI_size is
544 
            when X"1" =>
545 
              VLC_AC_size <= to_unsigned(9, VLC_AC_size'length);
546 
              VLC_AC      <= resize("111111010", VLC_AC'length);
547 
            when X"2" =>
548 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
549 
              VLC_AC      <= resize("1111111111011011", VLC_AC'length);
550 
            when X"3" =>
551 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
552 
              VLC_AC      <= resize("1111111111011100", VLC_AC'length);
553 
            when X"4" =>
554 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
555 
              VLC_AC      <= resize("1111111111011101", VLC_AC'length);
556 
            when X"5" =>
557 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
558 
              VLC_AC      <= resize("1111111111011110", VLC_AC'length);
559 
            when X"6" =>
560 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
561 
              VLC_AC      <= resize("1111111111011111", VLC_AC'length);
562 
            when X"7" =>
563 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
564 
              VLC_AC      <= resize("1111111111100000", VLC_AC'length);
565 
            when X"8" =>
566 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
567 
              VLC_AC      <= resize("1111111111100001", VLC_AC'length);
568 
            when X"9" =>
569 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
570 
              VLC_AC      <= resize("1111111111100010", VLC_AC'length);
571 
            when X"A" =>
572 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
573 
              VLC_AC      <= resize("1111111111100011", VLC_AC'length);
574 
            when others =>
575 
              VLC_AC_size <= to_unsigned(0, VLC_AC_size'length);
576 
              VLC_AC      <= resize("0", VLC_AC'length);
577 
          end case;
578 
 
579 
        when X"D" =>
580 
 
581 
          case VLI_size is
582 
            when X"1" =>
583 
              VLC_AC_size <= to_unsigned(11, VLC_AC_size'length);
584 
              VLC_AC      <= resize("11111111001", VLC_AC'length);
585 
            when X"2" =>
586 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
587 
              VLC_AC      <= resize("1111111111100100", VLC_AC'length);
588 
            when X"3" =>
589 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
590 
              VLC_AC      <= resize("1111111111100101", VLC_AC'length);
591 
            when X"4" =>
592 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
593 
              VLC_AC      <= resize("1111111111100110", VLC_AC'length);
594 
            when X"5" =>
595 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
596 
              VLC_AC      <= resize("1111111111100111", VLC_AC'length);
597 
            when X"6" =>
598 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
599 
              VLC_AC      <= resize("1111111111101000", VLC_AC'length);
600 
            when X"7" =>
601 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
602 
              VLC_AC      <= resize("1111111111101001", VLC_AC'length);
603 
            when X"8" =>
604 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
605 
              VLC_AC      <= resize("1111111111101010", VLC_AC'length);
606 
            when X"9" =>
607 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
608 
              VLC_AC      <= resize("1111111111101011", VLC_AC'length);
609 
            when X"A" =>
610 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
611 
              VLC_AC      <= resize("1111111111101100", VLC_AC'length);
612 
            when others =>
613 
              VLC_AC_size <= to_unsigned(0, VLC_AC_size'length);
614 
              VLC_AC      <= resize("0", VLC_AC'length);
615 
          end case;
616 
 
617 
        when X"E" =>
618 
 
619 
          case VLI_size is
620 
            when X"1" =>
621 
              VLC_AC_size <= to_unsigned(14, VLC_AC_size'length);
622 
              VLC_AC      <= resize("11111111100000", VLC_AC'length);
623 
            when X"2" =>
624 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
625 
              VLC_AC      <= resize("1111111111101101", VLC_AC'length);
626 
            when X"3" =>
627 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
628 
              VLC_AC      <= resize("1111111111101110", VLC_AC'length);
629 
            when X"4" =>
630 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
631 
              VLC_AC      <= resize("1111111111101111", VLC_AC'length);
632 
            when X"5" =>
633 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
634 
              VLC_AC      <= resize("1111111111110000", VLC_AC'length);
635 
            when X"6" =>
636 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
637 
              VLC_AC      <= resize("1111111111110001", VLC_AC'length);
638 
            when X"7" =>
639 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
640 
              VLC_AC      <= resize("1111111111110010", VLC_AC'length);
641 
            when X"8" =>
642 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
643 
              VLC_AC      <= resize("1111111111110011", VLC_AC'length);
644 
            when X"9" =>
645 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
646 
              VLC_AC      <= resize("1111111111110100", VLC_AC'length);
647 
            when X"A" =>
648 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
649 
              VLC_AC      <= resize("1111111111110101", VLC_AC'length);
650 
            when others =>
651 
              VLC_AC_size <= to_unsigned(0, VLC_AC_size'length);
652 
              VLC_AC      <= resize("0", VLC_AC'length);
653 
          end case;
654 
 
655 
        when X"F" =>
656 
 
657 
          case VLI_size is
658 
            when X"0" =>
659 
              VLC_AC_size <= to_unsigned(10, VLC_AC_size'length);
660 
              VLC_AC      <= resize("1111111010", VLC_AC'length);
661 
            when X"1" =>
662 
              VLC_AC_size <= to_unsigned(15, VLC_AC_size'length);
663 
              VLC_AC      <= resize("111111111000011", VLC_AC'length);
664 
            when X"2" =>
665 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
666 
              VLC_AC      <= resize("1111111111110110", VLC_AC'length);
667 
            when X"3" =>
668 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
669 
              VLC_AC      <= resize("1111111111110111", VLC_AC'length);
670 
            when X"4" =>
671 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
672 
              VLC_AC      <= resize("1111111111111000", VLC_AC'length);
673 
            when X"5" =>
674 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
675 
              VLC_AC      <= resize("1111111111111001", VLC_AC'length);
676 
            when X"6" =>
677 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
678 
              VLC_AC      <= resize("1111111111111010", VLC_AC'length);
679 
            when X"7" =>
680 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
681 
              VLC_AC      <= resize("1111111111111011", VLC_AC'length);
682 
            when X"8" =>
683 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
684 
              VLC_AC      <= resize("1111111111111100", VLC_AC'length);
685 
            when X"9" =>
686 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
687 
              VLC_AC      <= resize("1111111111111101", VLC_AC'length);
688 
            when X"A" =>
689 
              VLC_AC_size <= to_unsigned(16, VLC_AC_size'length);
690 
              VLC_AC      <= resize("1111111111111110", VLC_AC'length);
691 
            when others =>
692 
              VLC_AC_size <= to_unsigned(0, VLC_AC_size'length);
693 
              VLC_AC      <= resize("0", VLC_AC'length);
694 
          end case;
695 
 
696 
        when others =>
697 
          VLC_AC_size <= (others => '0');
698 
          VLC_AC      <= (others => '0');
699 
      end case;
700 
    end if;
701 
  end process;
702 
 
703 
 
704 
 
705 
end architecture RTL;
706 
-------------------------------------------------------------------------------
707 
-- Architecture: end
708 
-------------------------------------------------------------------------------

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