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[/] [reed_solomon_codec_generator/] [trunk/] [example/] [rtl/] [RsDecodeTop.v] - Blame information for rev 6

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//===================================================================
2
// Module Name : RsDecodeTop
3
// File Name   : RsDecodeTop.v
4
// Function    : Rs Decoder Top Module
5
// 
6
// Revision History:
7
// Date          By           Version    Change Description
8
//===================================================================
9
// 2009/02/03  Gael Sapience     1.0       Original
10
//
11
//===================================================================
12
// (C) COPYRIGHT 2009 SYSTEM LSI CO., Ltd.
13
//
14
 
15
 
16
module RsDecodeTop(
17
   // Inputs
18
   CLK,            // system clock
19
   RESET,          // system reset
20
   enable,         // system enable
21
   startPls,       // sync signal
22
   erasureIn,      // erasure input
23
   dataIn,         // data input
24
   // Outputs
25
   outEnable,      // data out valid signal
26
   outStartPls,    // first decoded symbol trigger
27
   outDone,        // last symbol decoded trigger
28
   errorNum,       // number of errors corrected
29
   erasureNum,     // number of erasure corrected
30
   fail,           // decoding failure signal
31
   delayedData,    // decoding failure signal
32
   outData         // data output
33
);
34
 
35
 
36
   input          CLK;            // system clock
37
   input          RESET;          // system reset
38
   input          enable;         // system enable
39
   input          startPls;       // sync signal
40
   input          erasureIn;      // erasure input
41
   input  [7:0]   dataIn;         // data input
42
   output         outEnable;      // data out valid signal
43
   output         outStartPls;    // first decoded symbol trigger
44
   output         outDone;        // last symbol decoded trigger
45
   output [7:0]   errorNum;       // number of errors corrected
46
   output [7:0]   erasureNum;     // number of erasure corrected
47
   output         fail;           // decoding failure signal
48
   output [7:0]   delayedData;    // delayed input data
49
   output [7:0]   outData;        // data output
50
 
51
 
52
 
53
   //------------------------------------------------------------------------
54
   // + dataInCheck
55
   //- assign to 0 if Erasure
56
   //------------------------------------------------------------------------
57
   wire [7:0]   dataInCheck;
58
 
59
   assign dataInCheck = (erasureIn == 1'b0) ? dataIn : 8'd0;
60
 
61
 
62
 
63
    //------------------------------------------------------------------
64
    // + syndrome_0,...,syndrome_21
65
    // + doneSyndrome
66
    //- RS Syndrome calculation
67
    //------------------------------------------------------------------
68
    wire [7:0]   syndrome_0;
69
    wire [7:0]   syndrome_1;
70
    wire [7:0]   syndrome_2;
71
    wire [7:0]   syndrome_3;
72
    wire [7:0]   syndrome_4;
73
    wire [7:0]   syndrome_5;
74
    wire [7:0]   syndrome_6;
75
    wire [7:0]   syndrome_7;
76
    wire [7:0]   syndrome_8;
77
    wire [7:0]   syndrome_9;
78
    wire [7:0]   syndrome_10;
79
    wire [7:0]   syndrome_11;
80
    wire [7:0]   syndrome_12;
81
    wire [7:0]   syndrome_13;
82
    wire [7:0]   syndrome_14;
83
    wire [7:0]   syndrome_15;
84
    wire [7:0]   syndrome_16;
85
    wire [7:0]   syndrome_17;
86
    wire [7:0]   syndrome_18;
87
    wire [7:0]   syndrome_19;
88
    wire [7:0]   syndrome_20;
89
    wire [7:0]   syndrome_21;
90
    wire         doneSyndrome;
91
 
92
 
93
   RsDecodeSyndrome RsDecodeSyndrome(
94
      // Inputs
95
      .CLK           (CLK),
96
      .RESET         (RESET),
97
      .enable        (enable),
98
      .sync          (startPls),
99
      .dataIn        (dataInCheck),
100
      // Outputs
101
      .syndrome_0    (syndrome_0),
102
      .syndrome_1    (syndrome_1),
103
      .syndrome_2    (syndrome_2),
104
      .syndrome_3    (syndrome_3),
105
      .syndrome_4    (syndrome_4),
106
      .syndrome_5    (syndrome_5),
107
      .syndrome_6    (syndrome_6),
108
      .syndrome_7    (syndrome_7),
109
      .syndrome_8    (syndrome_8),
110
      .syndrome_9    (syndrome_9),
111
      .syndrome_10   (syndrome_10),
112
      .syndrome_11   (syndrome_11),
113
      .syndrome_12   (syndrome_12),
114
      .syndrome_13   (syndrome_13),
115
      .syndrome_14   (syndrome_14),
116
      .syndrome_15   (syndrome_15),
117
      .syndrome_16   (syndrome_16),
118
      .syndrome_17   (syndrome_17),
119
      .syndrome_18   (syndrome_18),
120
      .syndrome_19   (syndrome_19),
121
      .syndrome_20   (syndrome_20),
122
      .syndrome_21   (syndrome_21),
123
      .done          (doneSyndrome)
124
   );
125
 
126
 
127
 
128
   //------------------------------------------------------------------
129
   // + epsilon_0,..., epsilon_22
130
   // + degreeEpsilon, failErasure, doneErasure
131
   //- RS Erasure calculation
132
   //------------------------------------------------------------------
133
   wire [7:0]   epsilon_0;
134
   wire [7:0]   epsilon_1;
135
   wire [7:0]   epsilon_2;
136
   wire [7:0]   epsilon_3;
137
   wire [7:0]   epsilon_4;
138
   wire [7:0]   epsilon_5;
139
   wire [7:0]   epsilon_6;
140
   wire [7:0]   epsilon_7;
141
   wire [7:0]   epsilon_8;
142
   wire [7:0]   epsilon_9;
143
   wire [7:0]   epsilon_10;
144
   wire [7:0]   epsilon_11;
145
   wire [7:0]   epsilon_12;
146
   wire [7:0]   epsilon_13;
147
   wire [7:0]   epsilon_14;
148
   wire [7:0]   epsilon_15;
149
   wire [7:0]   epsilon_16;
150
   wire [7:0]   epsilon_17;
151
   wire [7:0]   epsilon_18;
152
   wire [7:0]   epsilon_19;
153
   wire [7:0]   epsilon_20;
154
   wire [7:0]   epsilon_21;
155
   wire [7:0]   epsilon_22;
156
   wire [4:0]   degreeEpsilon;
157
   wire         failErasure;
158
   wire         doneErasure;
159
 
160
 
161
   RsDecodeErasure RsDecodeErasure(
162
      // Inputs
163
      .CLK          (CLK),
164
      .RESET        (RESET),
165
      .enable       (enable),
166
      .sync         (startPls),
167
      .erasureIn    (erasureIn),
168
      // Outputs
169
      .epsilon_0    (epsilon_0),
170
      .epsilon_1    (epsilon_1),
171
      .epsilon_2    (epsilon_2),
172
      .epsilon_3    (epsilon_3),
173
      .epsilon_4    (epsilon_4),
174
      .epsilon_5    (epsilon_5),
175
      .epsilon_6    (epsilon_6),
176
      .epsilon_7    (epsilon_7),
177
      .epsilon_8    (epsilon_8),
178
      .epsilon_9    (epsilon_9),
179
      .epsilon_10   (epsilon_10),
180
      .epsilon_11   (epsilon_11),
181
      .epsilon_12   (epsilon_12),
182
      .epsilon_13   (epsilon_13),
183
      .epsilon_14   (epsilon_14),
184
      .epsilon_15   (epsilon_15),
185
      .epsilon_16   (epsilon_16),
186
      .epsilon_17   (epsilon_17),
187
      .epsilon_18   (epsilon_18),
188
      .epsilon_19   (epsilon_19),
189
      .epsilon_20   (epsilon_20),
190
      .epsilon_21   (epsilon_21),
191
      .epsilon_22   (epsilon_22),
192
      .numErasure   (degreeEpsilon),
193
      .fail         (failErasure),
194
      .done         (doneErasure)
195
   );
196
 
197
 
198
 
199
   //------------------------------------------------------------------
200
   // + polymulSyndrome_0,..., polymulSyndrome_21
201
   // + donePolymul
202
   //- RS Polymul calculation
203
   //------------------------------------------------------------------
204
    wire [7:0]   polymulSyndrome_0;
205
    wire [7:0]   polymulSyndrome_1;
206
    wire [7:0]   polymulSyndrome_2;
207
    wire [7:0]   polymulSyndrome_3;
208
    wire [7:0]   polymulSyndrome_4;
209
    wire [7:0]   polymulSyndrome_5;
210
    wire [7:0]   polymulSyndrome_6;
211
    wire [7:0]   polymulSyndrome_7;
212
    wire [7:0]   polymulSyndrome_8;
213
    wire [7:0]   polymulSyndrome_9;
214
    wire [7:0]   polymulSyndrome_10;
215
    wire [7:0]   polymulSyndrome_11;
216
    wire [7:0]   polymulSyndrome_12;
217
    wire [7:0]   polymulSyndrome_13;
218
    wire [7:0]   polymulSyndrome_14;
219
    wire [7:0]   polymulSyndrome_15;
220
    wire [7:0]   polymulSyndrome_16;
221
    wire [7:0]   polymulSyndrome_17;
222
    wire [7:0]   polymulSyndrome_18;
223
    wire [7:0]   polymulSyndrome_19;
224
    wire [7:0]   polymulSyndrome_20;
225
    wire [7:0]   polymulSyndrome_21;
226
    wire         donePolymul;
227
 
228
 
229
   RsDecodePolymul RsDecodePolymul(
230
      // Inputs
231
      .CLK              (CLK),
232
      .RESET            (RESET),
233
      .enable           (enable),
234
      .sync             (doneSyndrome),
235
      .syndromeIn_0     (syndrome_0),
236
      .syndromeIn_1     (syndrome_1),
237
      .syndromeIn_2     (syndrome_2),
238
      .syndromeIn_3     (syndrome_3),
239
      .syndromeIn_4     (syndrome_4),
240
      .syndromeIn_5     (syndrome_5),
241
      .syndromeIn_6     (syndrome_6),
242
      .syndromeIn_7     (syndrome_7),
243
      .syndromeIn_8     (syndrome_8),
244
      .syndromeIn_9     (syndrome_9),
245
      .syndromeIn_10    (syndrome_10),
246
      .syndromeIn_11    (syndrome_11),
247
      .syndromeIn_12    (syndrome_12),
248
      .syndromeIn_13    (syndrome_13),
249
      .syndromeIn_14    (syndrome_14),
250
      .syndromeIn_15    (syndrome_15),
251
      .syndromeIn_16    (syndrome_16),
252
      .syndromeIn_17    (syndrome_17),
253
      .syndromeIn_18    (syndrome_18),
254
      .syndromeIn_19    (syndrome_19),
255
      .syndromeIn_20    (syndrome_20),
256
      .syndromeIn_21    (syndrome_21),
257
      .epsilon_0        (epsilon_0),
258
      .epsilon_1        (epsilon_1),
259
      .epsilon_2        (epsilon_2),
260
      .epsilon_3        (epsilon_3),
261
      .epsilon_4        (epsilon_4),
262
      .epsilon_5        (epsilon_5),
263
      .epsilon_6        (epsilon_6),
264
      .epsilon_7        (epsilon_7),
265
      .epsilon_8        (epsilon_8),
266
      .epsilon_9        (epsilon_9),
267
      .epsilon_10       (epsilon_10),
268
      .epsilon_11       (epsilon_11),
269
      .epsilon_12       (epsilon_12),
270
      .epsilon_13       (epsilon_13),
271
      .epsilon_14       (epsilon_14),
272
      .epsilon_15       (epsilon_15),
273
      .epsilon_16       (epsilon_16),
274
      .epsilon_17       (epsilon_17),
275
      .epsilon_18       (epsilon_18),
276
      .epsilon_19       (epsilon_19),
277
      .epsilon_20       (epsilon_20),
278
      .epsilon_21       (epsilon_21),
279
      .epsilon_22       (epsilon_22),
280
      // Outputs
281
      .syndromeOut_0    (polymulSyndrome_0),
282
      .syndromeOut_1    (polymulSyndrome_1),
283
      .syndromeOut_2    (polymulSyndrome_2),
284
      .syndromeOut_3    (polymulSyndrome_3),
285
      .syndromeOut_4    (polymulSyndrome_4),
286
      .syndromeOut_5    (polymulSyndrome_5),
287
      .syndromeOut_6    (polymulSyndrome_6),
288
      .syndromeOut_7    (polymulSyndrome_7),
289
      .syndromeOut_8    (polymulSyndrome_8),
290
      .syndromeOut_9    (polymulSyndrome_9),
291
      .syndromeOut_10   (polymulSyndrome_10),
292
      .syndromeOut_11   (polymulSyndrome_11),
293
      .syndromeOut_12   (polymulSyndrome_12),
294
      .syndromeOut_13   (polymulSyndrome_13),
295
      .syndromeOut_14   (polymulSyndrome_14),
296
      .syndromeOut_15   (polymulSyndrome_15),
297
      .syndromeOut_16   (polymulSyndrome_16),
298
      .syndromeOut_17   (polymulSyndrome_17),
299
      .syndromeOut_18   (polymulSyndrome_18),
300
      .syndromeOut_19   (polymulSyndrome_19),
301
      .syndromeOut_20   (polymulSyndrome_20),
302
      .syndromeOut_21   (polymulSyndrome_21),
303
      .done             (donePolymul)
304
   );
305
 
306
 
307
 
308
   //------------------------------------------------------------------
309
   // + lambda_0,..., lambda_21
310
   // + omega_0,..., omega_21
311
   // + numShifted, doneEuclide
312
   //- RS EUCLIDE
313
   //------------------------------------------------------------------
314
   wire [7:0]   lambda_0;
315
   wire [7:0]   lambda_1;
316
   wire [7:0]   lambda_2;
317
   wire [7:0]   lambda_3;
318
   wire [7:0]   lambda_4;
319
   wire [7:0]   lambda_5;
320
   wire [7:0]   lambda_6;
321
   wire [7:0]   lambda_7;
322
   wire [7:0]   lambda_8;
323
   wire [7:0]   lambda_9;
324
   wire [7:0]   lambda_10;
325
   wire [7:0]   lambda_11;
326
   wire [7:0]   lambda_12;
327
   wire [7:0]   lambda_13;
328
   wire [7:0]   lambda_14;
329
   wire [7:0]   lambda_15;
330
   wire [7:0]   lambda_16;
331
   wire [7:0]   lambda_17;
332
   wire [7:0]   lambda_18;
333
   wire [7:0]   lambda_19;
334
   wire [7:0]   lambda_20;
335
   wire [7:0]   lambda_21;
336
   wire [7:0]   omega_0;
337
   wire [7:0]   omega_1;
338
   wire [7:0]   omega_2;
339
   wire [7:0]   omega_3;
340
   wire [7:0]   omega_4;
341
   wire [7:0]   omega_5;
342
   wire [7:0]   omega_6;
343
   wire [7:0]   omega_7;
344
   wire [7:0]   omega_8;
345
   wire [7:0]   omega_9;
346
   wire [7:0]   omega_10;
347
   wire [7:0]   omega_11;
348
   wire [7:0]   omega_12;
349
   wire [7:0]   omega_13;
350
   wire [7:0]   omega_14;
351
   wire [7:0]   omega_15;
352
   wire [7:0]   omega_16;
353
   wire [7:0]   omega_17;
354
   wire [7:0]   omega_18;
355
   wire [7:0]   omega_19;
356
   wire [7:0]   omega_20;
357
   wire [7:0]   omega_21;
358
   wire         doneEuclide;
359
   wire [4:0]   numShifted;
360
   reg  [4:0]   degreeEpsilonReg;
361
 
362
 
363
   RsDecodeEuclide  RsDecodeEuclide(
364
      // Inputs
365
      .CLK           (CLK),
366
      .RESET         (RESET),
367
      .enable        (enable),
368
      .sync          (donePolymul),
369
      .syndrome_0    (polymulSyndrome_0),
370
      .syndrome_1    (polymulSyndrome_1),
371
      .syndrome_2    (polymulSyndrome_2),
372
      .syndrome_3    (polymulSyndrome_3),
373
      .syndrome_4    (polymulSyndrome_4),
374
      .syndrome_5    (polymulSyndrome_5),
375
      .syndrome_6    (polymulSyndrome_6),
376
      .syndrome_7    (polymulSyndrome_7),
377
      .syndrome_8    (polymulSyndrome_8),
378
      .syndrome_9    (polymulSyndrome_9),
379
      .syndrome_10   (polymulSyndrome_10),
380
      .syndrome_11   (polymulSyndrome_11),
381
      .syndrome_12   (polymulSyndrome_12),
382
      .syndrome_13   (polymulSyndrome_13),
383
      .syndrome_14   (polymulSyndrome_14),
384
      .syndrome_15   (polymulSyndrome_15),
385
      .syndrome_16   (polymulSyndrome_16),
386
      .syndrome_17   (polymulSyndrome_17),
387
      .syndrome_18   (polymulSyndrome_18),
388
      .syndrome_19   (polymulSyndrome_19),
389
      .syndrome_20   (polymulSyndrome_20),
390
      .syndrome_21   (polymulSyndrome_21),
391
      .numErasure    (degreeEpsilonReg),
392
      // Outputs
393
      .lambda_0      (lambda_0),
394
      .lambda_1      (lambda_1),
395
      .lambda_2      (lambda_2),
396
      .lambda_3      (lambda_3),
397
      .lambda_4      (lambda_4),
398
      .lambda_5      (lambda_5),
399
      .lambda_6      (lambda_6),
400
      .lambda_7      (lambda_7),
401
      .lambda_8      (lambda_8),
402
      .lambda_9      (lambda_9),
403
      .lambda_10     (lambda_10),
404
      .lambda_11     (lambda_11),
405
      .lambda_12     (lambda_12),
406
      .lambda_13     (lambda_13),
407
      .lambda_14     (lambda_14),
408
      .lambda_15     (lambda_15),
409
      .lambda_16     (lambda_16),
410
      .lambda_17     (lambda_17),
411
      .lambda_18     (lambda_18),
412
      .lambda_19     (lambda_19),
413
      .lambda_20     (lambda_20),
414
      .lambda_21     (lambda_21),
415
      .omega_0       (omega_0),
416
      .omega_1       (omega_1),
417
      .omega_2       (omega_2),
418
      .omega_3       (omega_3),
419
      .omega_4       (omega_4),
420
      .omega_5       (omega_5),
421
      .omega_6       (omega_6),
422
      .omega_7       (omega_7),
423
      .omega_8       (omega_8),
424
      .omega_9       (omega_9),
425
      .omega_10      (omega_10),
426
      .omega_11      (omega_11),
427
      .omega_12      (omega_12),
428
      .omega_13      (omega_13),
429
      .omega_14      (omega_14),
430
      .omega_15      (omega_15),
431
      .omega_16      (omega_16),
432
      .omega_17      (omega_17),
433
      .omega_18      (omega_18),
434
      .omega_19      (omega_19),
435
      .omega_20      (omega_20),
436
      .omega_21      (omega_21),
437
      .numShifted    (numShifted),
438
      .done          (doneEuclide)
439
   );
440
 
441
 
442
 
443
   //------------------------------------------------------------------
444
   // + epsilonReg_0, ..., epsilonReg_22
445
   //-
446
   //------------------------------------------------------------------
447
   reg [7:0]   epsilonReg_0;
448
   reg [7:0]   epsilonReg_1;
449
   reg [7:0]   epsilonReg_2;
450
   reg [7:0]   epsilonReg_3;
451
   reg [7:0]   epsilonReg_4;
452
   reg [7:0]   epsilonReg_5;
453
   reg [7:0]   epsilonReg_6;
454
   reg [7:0]   epsilonReg_7;
455
   reg [7:0]   epsilonReg_8;
456
   reg [7:0]   epsilonReg_9;
457
   reg [7:0]   epsilonReg_10;
458
   reg [7:0]   epsilonReg_11;
459
   reg [7:0]   epsilonReg_12;
460
   reg [7:0]   epsilonReg_13;
461
   reg [7:0]   epsilonReg_14;
462
   reg [7:0]   epsilonReg_15;
463
   reg [7:0]   epsilonReg_16;
464
   reg [7:0]   epsilonReg_17;
465
   reg [7:0]   epsilonReg_18;
466
   reg [7:0]   epsilonReg_19;
467
   reg [7:0]   epsilonReg_20;
468
   reg [7:0]   epsilonReg_21;
469
   reg [7:0]   epsilonReg_22;
470
 
471
 
472
   always @(posedge CLK or negedge RESET) begin
473
      if (~RESET) begin
474
         epsilonReg_0 [7:0]  <= 8'd0;
475
         epsilonReg_1 [7:0]  <= 8'd0;
476
         epsilonReg_2 [7:0]  <= 8'd0;
477
         epsilonReg_3 [7:0]  <= 8'd0;
478
         epsilonReg_4 [7:0]  <= 8'd0;
479
         epsilonReg_5 [7:0]  <= 8'd0;
480
         epsilonReg_6 [7:0]  <= 8'd0;
481
         epsilonReg_7 [7:0]  <= 8'd0;
482
         epsilonReg_8 [7:0]  <= 8'd0;
483
         epsilonReg_9 [7:0]  <= 8'd0;
484
         epsilonReg_10 [7:0] <= 8'd0;
485
         epsilonReg_11 [7:0] <= 8'd0;
486
         epsilonReg_12 [7:0] <= 8'd0;
487
         epsilonReg_13 [7:0] <= 8'd0;
488
         epsilonReg_14 [7:0] <= 8'd0;
489
         epsilonReg_15 [7:0] <= 8'd0;
490
         epsilonReg_16 [7:0] <= 8'd0;
491
         epsilonReg_17 [7:0] <= 8'd0;
492
         epsilonReg_18 [7:0] <= 8'd0;
493
         epsilonReg_19 [7:0] <= 8'd0;
494
         epsilonReg_20 [7:0] <= 8'd0;
495
         epsilonReg_21 [7:0] <= 8'd0;
496
         epsilonReg_22 [7:0] <= 8'd0;
497
      end
498
      else if ((enable == 1'b1) && (doneErasure == 1'b1)) begin
499
         epsilonReg_0 [7:0]  <= epsilon_0 [7:0];
500
         epsilonReg_1 [7:0]  <= epsilon_1 [7:0];
501
         epsilonReg_2 [7:0]  <= epsilon_2 [7:0];
502
         epsilonReg_3 [7:0]  <= epsilon_3 [7:0];
503
         epsilonReg_4 [7:0]  <= epsilon_4 [7:0];
504
         epsilonReg_5 [7:0]  <= epsilon_5 [7:0];
505
         epsilonReg_6 [7:0]  <= epsilon_6 [7:0];
506
         epsilonReg_7 [7:0]  <= epsilon_7 [7:0];
507
         epsilonReg_8 [7:0]  <= epsilon_8 [7:0];
508
         epsilonReg_9 [7:0]  <= epsilon_9 [7:0];
509
         epsilonReg_10 [7:0] <= epsilon_10 [7:0];
510
         epsilonReg_11 [7:0] <= epsilon_11 [7:0];
511
         epsilonReg_12 [7:0] <= epsilon_12 [7:0];
512
         epsilonReg_13 [7:0] <= epsilon_13 [7:0];
513
         epsilonReg_14 [7:0] <= epsilon_14 [7:0];
514
         epsilonReg_15 [7:0] <= epsilon_15 [7:0];
515
         epsilonReg_16 [7:0] <= epsilon_16 [7:0];
516
         epsilonReg_17 [7:0] <= epsilon_17 [7:0];
517
         epsilonReg_18 [7:0] <= epsilon_18 [7:0];
518
         epsilonReg_19 [7:0] <= epsilon_19 [7:0];
519
         epsilonReg_20 [7:0] <= epsilon_20 [7:0];
520
         epsilonReg_21 [7:0] <= epsilon_21 [7:0];
521
         epsilonReg_22 [7:0] <= epsilon_22 [7:0];
522
      end
523
   end
524
 
525
 
526
 
527
   //------------------------------------------------------------------
528
   // + epsilonReg2_0,..., epsilonReg2_22
529
   //-
530
   //------------------------------------------------------------------
531
   reg [7:0]   epsilonReg2_0;
532
   reg [7:0]   epsilonReg2_1;
533
   reg [7:0]   epsilonReg2_2;
534
   reg [7:0]   epsilonReg2_3;
535
   reg [7:0]   epsilonReg2_4;
536
   reg [7:0]   epsilonReg2_5;
537
   reg [7:0]   epsilonReg2_6;
538
   reg [7:0]   epsilonReg2_7;
539
   reg [7:0]   epsilonReg2_8;
540
   reg [7:0]   epsilonReg2_9;
541
   reg [7:0]   epsilonReg2_10;
542
   reg [7:0]   epsilonReg2_11;
543
   reg [7:0]   epsilonReg2_12;
544
   reg [7:0]   epsilonReg2_13;
545
   reg [7:0]   epsilonReg2_14;
546
   reg [7:0]   epsilonReg2_15;
547
   reg [7:0]   epsilonReg2_16;
548
   reg [7:0]   epsilonReg2_17;
549
   reg [7:0]   epsilonReg2_18;
550
   reg [7:0]   epsilonReg2_19;
551
   reg [7:0]   epsilonReg2_20;
552
   reg [7:0]   epsilonReg2_21;
553
   reg [7:0]   epsilonReg2_22;
554
 
555
 
556
   always @(posedge CLK or negedge RESET) begin
557
      if (~RESET) begin
558
         epsilonReg2_0 [7:0]  <= 8'd0;
559
         epsilonReg2_1 [7:0]  <= 8'd0;
560
         epsilonReg2_2 [7:0]  <= 8'd0;
561
         epsilonReg2_3 [7:0]  <= 8'd0;
562
         epsilonReg2_4 [7:0]  <= 8'd0;
563
         epsilonReg2_5 [7:0]  <= 8'd0;
564
         epsilonReg2_6 [7:0]  <= 8'd0;
565
         epsilonReg2_7 [7:0]  <= 8'd0;
566
         epsilonReg2_8 [7:0]  <= 8'd0;
567
         epsilonReg2_9 [7:0]  <= 8'd0;
568
         epsilonReg2_10 [7:0] <= 8'd0;
569
         epsilonReg2_11 [7:0] <= 8'd0;
570
         epsilonReg2_12 [7:0] <= 8'd0;
571
         epsilonReg2_13 [7:0] <= 8'd0;
572
         epsilonReg2_14 [7:0] <= 8'd0;
573
         epsilonReg2_15 [7:0] <= 8'd0;
574
         epsilonReg2_16 [7:0] <= 8'd0;
575
         epsilonReg2_17 [7:0] <= 8'd0;
576
         epsilonReg2_18 [7:0] <= 8'd0;
577
         epsilonReg2_19 [7:0] <= 8'd0;
578
         epsilonReg2_20 [7:0] <= 8'd0;
579
         epsilonReg2_21 [7:0] <= 8'd0;
580
         epsilonReg2_22 [7:0] <= 8'd0;
581
      end
582
      else if ((enable == 1'b1) && (donePolymul == 1'b1)) begin
583
         epsilonReg2_0 [7:0]  <= epsilonReg_0 [7:0];
584
         epsilonReg2_1 [7:0]  <= epsilonReg_1 [7:0];
585
         epsilonReg2_2 [7:0]  <= epsilonReg_2 [7:0];
586
         epsilonReg2_3 [7:0]  <= epsilonReg_3 [7:0];
587
         epsilonReg2_4 [7:0]  <= epsilonReg_4 [7:0];
588
         epsilonReg2_5 [7:0]  <= epsilonReg_5 [7:0];
589
         epsilonReg2_6 [7:0]  <= epsilonReg_6 [7:0];
590
         epsilonReg2_7 [7:0]  <= epsilonReg_7 [7:0];
591
         epsilonReg2_8 [7:0]  <= epsilonReg_8 [7:0];
592
         epsilonReg2_9 [7:0]  <= epsilonReg_9 [7:0];
593
         epsilonReg2_10 [7:0] <= epsilonReg_10 [7:0];
594
         epsilonReg2_11 [7:0] <= epsilonReg_11 [7:0];
595
         epsilonReg2_12 [7:0] <= epsilonReg_12 [7:0];
596
         epsilonReg2_13 [7:0] <= epsilonReg_13 [7:0];
597
         epsilonReg2_14 [7:0] <= epsilonReg_14 [7:0];
598
         epsilonReg2_15 [7:0] <= epsilonReg_15 [7:0];
599
         epsilonReg2_16 [7:0] <= epsilonReg_16 [7:0];
600
         epsilonReg2_17 [7:0] <= epsilonReg_17 [7:0];
601
         epsilonReg2_18 [7:0] <= epsilonReg_18 [7:0];
602
         epsilonReg2_19 [7:0] <= epsilonReg_19 [7:0];
603
         epsilonReg2_20 [7:0] <= epsilonReg_20 [7:0];
604
         epsilonReg2_21 [7:0] <= epsilonReg_21 [7:0];
605
         epsilonReg2_22 [7:0] <= epsilonReg_22 [7:0];
606
      end
607
   end
608
 
609
 
610
 
611
   //------------------------------------------------------------------
612
   // + epsilonReg3_0, ..., epsilonReg3_22
613
   //-
614
   //------------------------------------------------------------------
615
   reg [7:0]   epsilonReg3_0;
616
   reg [7:0]   epsilonReg3_1;
617
   reg [7:0]   epsilonReg3_2;
618
   reg [7:0]   epsilonReg3_3;
619
   reg [7:0]   epsilonReg3_4;
620
   reg [7:0]   epsilonReg3_5;
621
   reg [7:0]   epsilonReg3_6;
622
   reg [7:0]   epsilonReg3_7;
623
   reg [7:0]   epsilonReg3_8;
624
   reg [7:0]   epsilonReg3_9;
625
   reg [7:0]   epsilonReg3_10;
626
   reg [7:0]   epsilonReg3_11;
627
   reg [7:0]   epsilonReg3_12;
628
   reg [7:0]   epsilonReg3_13;
629
   reg [7:0]   epsilonReg3_14;
630
   reg [7:0]   epsilonReg3_15;
631
   reg [7:0]   epsilonReg3_16;
632
   reg [7:0]   epsilonReg3_17;
633
   reg [7:0]   epsilonReg3_18;
634
   reg [7:0]   epsilonReg3_19;
635
   reg [7:0]   epsilonReg3_20;
636
   reg [7:0]   epsilonReg3_21;
637
   reg [7:0]   epsilonReg3_22;
638
 
639
 
640
   always @(posedge CLK or negedge RESET) begin
641
      if (~RESET) begin
642
         epsilonReg3_0 [7:0]  <= 8'd0;
643
         epsilonReg3_1 [7:0]  <= 8'd0;
644
         epsilonReg3_2 [7:0]  <= 8'd0;
645
         epsilonReg3_3 [7:0]  <= 8'd0;
646
         epsilonReg3_4 [7:0]  <= 8'd0;
647
         epsilonReg3_5 [7:0]  <= 8'd0;
648
         epsilonReg3_6 [7:0]  <= 8'd0;
649
         epsilonReg3_7 [7:0]  <= 8'd0;
650
         epsilonReg3_8 [7:0]  <= 8'd0;
651
         epsilonReg3_9 [7:0]  <= 8'd0;
652
         epsilonReg3_10 [7:0] <= 8'd0;
653
         epsilonReg3_11 [7:0] <= 8'd0;
654
         epsilonReg3_12 [7:0] <= 8'd0;
655
         epsilonReg3_13 [7:0] <= 8'd0;
656
         epsilonReg3_14 [7:0] <= 8'd0;
657
         epsilonReg3_15 [7:0] <= 8'd0;
658
         epsilonReg3_16 [7:0] <= 8'd0;
659
         epsilonReg3_17 [7:0] <= 8'd0;
660
         epsilonReg3_18 [7:0] <= 8'd0;
661
         epsilonReg3_19 [7:0] <= 8'd0;
662
         epsilonReg3_20 [7:0] <= 8'd0;
663
         epsilonReg3_21 [7:0] <= 8'd0;
664
         epsilonReg3_22 [7:0] <= 8'd0;
665
      end
666
      else if ((enable == 1'b1) && (doneEuclide == 1'b1)) begin
667
         epsilonReg3_0 [7:0]  <= epsilonReg2_0 [7:0];
668
         epsilonReg3_1 [7:0]  <= epsilonReg2_1 [7:0];
669
         epsilonReg3_2 [7:0]  <= epsilonReg2_2 [7:0];
670
         epsilonReg3_3 [7:0]  <= epsilonReg2_3 [7:0];
671
         epsilonReg3_4 [7:0]  <= epsilonReg2_4 [7:0];
672
         epsilonReg3_5 [7:0]  <= epsilonReg2_5 [7:0];
673
         epsilonReg3_6 [7:0]  <= epsilonReg2_6 [7:0];
674
         epsilonReg3_7 [7:0]  <= epsilonReg2_7 [7:0];
675
         epsilonReg3_8 [7:0]  <= epsilonReg2_8 [7:0];
676
         epsilonReg3_9 [7:0]  <= epsilonReg2_9 [7:0];
677
         epsilonReg3_10 [7:0] <= epsilonReg2_10 [7:0];
678
         epsilonReg3_11 [7:0] <= epsilonReg2_11 [7:0];
679
         epsilonReg3_12 [7:0] <= epsilonReg2_12 [7:0];
680
         epsilonReg3_13 [7:0] <= epsilonReg2_13 [7:0];
681
         epsilonReg3_14 [7:0] <= epsilonReg2_14 [7:0];
682
         epsilonReg3_15 [7:0] <= epsilonReg2_15 [7:0];
683
         epsilonReg3_16 [7:0] <= epsilonReg2_16 [7:0];
684
         epsilonReg3_17 [7:0] <= epsilonReg2_17 [7:0];
685
         epsilonReg3_18 [7:0] <= epsilonReg2_18 [7:0];
686
         epsilonReg3_19 [7:0] <= epsilonReg2_19 [7:0];
687
         epsilonReg3_20 [7:0] <= epsilonReg2_20 [7:0];
688
         epsilonReg3_21 [7:0] <= epsilonReg2_21 [7:0];
689
         epsilonReg3_22 [7:0] <= epsilonReg2_22 [7:0];
690
      end
691
   end
692
 
693
 
694
 
695
   //------------------------------------------------------------------
696
   // + degreeEpsilonReg
697
   //-
698
   //------------------------------------------------------------------
699
   always @(posedge CLK or negedge RESET) begin
700
      if (~RESET) begin
701
         degreeEpsilonReg   [4:0] <= 5'd0;
702
      end
703
      else if ((enable == 1'b1) && (doneErasure == 1'b1)) begin
704
         degreeEpsilonReg   <= degreeEpsilon;
705
      end
706
   end
707
 
708
 
709
 
710
   //------------------------------------------------------------------
711
   // + degreeEpsilonReg2
712
   //-
713
   //------------------------------------------------------------------
714
   reg    [4:0]   degreeEpsilonReg2;
715
   always @(posedge CLK or negedge RESET) begin
716
      if (~RESET) begin
717
         degreeEpsilonReg2   [4:0] <= 5'd0;
718
      end
719
      else if ((enable == 1'b1) && (donePolymul == 1'b1)) begin
720
         degreeEpsilonReg2   <= degreeEpsilonReg;
721
      end
722
   end
723
 
724
 
725
 
726
   //------------------------------------------------------------------
727
   // + degreeEpsilonReg3
728
   //-
729
   //------------------------------------------------------------------
730
   reg    [4:0]   degreeEpsilonReg3;
731
   always @(posedge CLK or negedge RESET) begin
732
      if (~RESET) begin
733
         degreeEpsilonReg3   [4:0] <= 5'd0;
734
      end
735
      else if ((enable == 1'b1) && (doneEuclide == 1'b1)) begin
736
         degreeEpsilonReg3   <= degreeEpsilonReg2;
737
      end
738
   end
739
 
740
 
741
 
742
   reg          doneShiftReg;
743
   //------------------------------------------------------------------
744
   // + degreeEpsilonReg4
745
   //-
746
   //------------------------------------------------------------------
747
   reg    [4:0]   degreeEpsilonReg4;
748
   always @(posedge CLK or negedge RESET) begin
749
      if (~RESET) begin
750
         degreeEpsilonReg4   [4:0] <= 5'd0;
751
      end
752
      else if ((enable == 1'b1) && (doneShiftReg == 1'b1)) begin
753
         degreeEpsilonReg4   <= degreeEpsilonReg3;
754
      end
755
   end
756
 
757
 
758
 
759
   wire         doneChien;
760
   //------------------------------------------------------------------
761
   // + degreeEpsilonReg5
762
   //-
763
   //------------------------------------------------------------------
764
   reg    [4:0]   degreeEpsilonReg5;
765
   always @(posedge CLK or negedge RESET) begin
766
      if (~RESET) begin
767
         degreeEpsilonReg5 [4:0] <= 5'd0;
768
      end
769
      else if ((enable == 1'b1) && (doneChien == 1'b1)) begin
770
         degreeEpsilonReg5   <= degreeEpsilonReg4;
771
      end
772
   end
773
 
774
 
775
 
776
   reg [2:0]   doneReg;
777
   //------------------------------------------------------------------
778
   // + numErasureReg
779
   //-
780
   //------------------------------------------------------------------
781
   reg [4:0]   numErasureReg;
782
   always @(posedge CLK or negedge RESET) begin
783
      if (~RESET) begin
784
         numErasureReg   <= 5'd0;
785
      end
786
      else if ((enable == 1'b1) && (doneReg[0] == 1'b1)) begin
787
         numErasureReg   <= degreeEpsilonReg5;
788
      end
789
   end
790
 
791
 
792
 
793
   //------------------------------------------------------------------------
794
   // + doneShift
795
   //------------------------------------------------------------------------
796
   reg          doneShift;
797
   always @(posedge CLK or negedge RESET) begin
798
      if (~RESET) begin
799
         doneShift <= 1'b0;
800
      end
801
      else if (enable == 1'b1) begin
802
         doneShift <= doneEuclide;
803
      end
804
   end
805
 
806
 
807
 
808
   //------------------------------------------------------------------
809
   // + numShiftedReg
810
   //------------------------------------------------------------------
811
   reg [4:0]   numShiftedReg;
812
   always @(posedge CLK or negedge RESET) begin
813
      if (~RESET) begin
814
         numShiftedReg <= 5'd0;
815
      end
816
      else if ((enable == 1'b1) && (doneEuclide == 1'b1)) begin
817
         numShiftedReg <= numShifted;
818
      end
819
   end
820
 
821
 
822
 
823
   //------------------------------------------------------------------
824
   // + lambdaReg_0,..., lambdaReg_21
825
   //------------------------------------------------------------------
826
   reg [7:0]   lambdaReg_0;
827
   reg [7:0]   lambdaReg_1;
828
   reg [7:0]   lambdaReg_2;
829
   reg [7:0]   lambdaReg_3;
830
   reg [7:0]   lambdaReg_4;
831
   reg [7:0]   lambdaReg_5;
832
   reg [7:0]   lambdaReg_6;
833
   reg [7:0]   lambdaReg_7;
834
   reg [7:0]   lambdaReg_8;
835
   reg [7:0]   lambdaReg_9;
836
   reg [7:0]   lambdaReg_10;
837
   reg [7:0]   lambdaReg_11;
838
   reg [7:0]   lambdaReg_12;
839
   reg [7:0]   lambdaReg_13;
840
   reg [7:0]   lambdaReg_14;
841
   reg [7:0]   lambdaReg_15;
842
   reg [7:0]   lambdaReg_16;
843
   reg [7:0]   lambdaReg_17;
844
   reg [7:0]   lambdaReg_18;
845
   reg [7:0]   lambdaReg_19;
846
   reg [7:0]   lambdaReg_20;
847
   reg [7:0]   lambdaReg_21;
848
 
849
 
850
   always @(posedge CLK or negedge RESET) begin
851
      if (~RESET) begin
852
         lambdaReg_0 [7:0]  <= 8'd0;
853
         lambdaReg_1 [7:0]  <= 8'd0;
854
         lambdaReg_2 [7:0]  <= 8'd0;
855
         lambdaReg_3 [7:0]  <= 8'd0;
856
         lambdaReg_4 [7:0]  <= 8'd0;
857
         lambdaReg_5 [7:0]  <= 8'd0;
858
         lambdaReg_6 [7:0]  <= 8'd0;
859
         lambdaReg_7 [7:0]  <= 8'd0;
860
         lambdaReg_8 [7:0]  <= 8'd0;
861
         lambdaReg_9 [7:0]  <= 8'd0;
862
         lambdaReg_10 [7:0] <= 8'd0;
863
         lambdaReg_11 [7:0] <= 8'd0;
864
         lambdaReg_12 [7:0] <= 8'd0;
865
         lambdaReg_13 [7:0] <= 8'd0;
866
         lambdaReg_14 [7:0] <= 8'd0;
867
         lambdaReg_15 [7:0] <= 8'd0;
868
         lambdaReg_16 [7:0] <= 8'd0;
869
         lambdaReg_17 [7:0] <= 8'd0;
870
         lambdaReg_18 [7:0] <= 8'd0;
871
         lambdaReg_19 [7:0] <= 8'd0;
872
         lambdaReg_20 [7:0] <= 8'd0;
873
         lambdaReg_21 [7:0] <= 8'd0;
874
      end
875
      else if ((enable == 1'b1) && (doneEuclide == 1'b1)) begin
876
         lambdaReg_0 [7:0]  <= lambda_0 [7:0];
877
         lambdaReg_1 [7:0]  <= lambda_1 [7:0];
878
         lambdaReg_2 [7:0]  <= lambda_2 [7:0];
879
         lambdaReg_3 [7:0]  <= lambda_3 [7:0];
880
         lambdaReg_4 [7:0]  <= lambda_4 [7:0];
881
         lambdaReg_5 [7:0]  <= lambda_5 [7:0];
882
         lambdaReg_6 [7:0]  <= lambda_6 [7:0];
883
         lambdaReg_7 [7:0]  <= lambda_7 [7:0];
884
         lambdaReg_8 [7:0]  <= lambda_8 [7:0];
885
         lambdaReg_9 [7:0]  <= lambda_9 [7:0];
886
         lambdaReg_10 [7:0] <= lambda_10 [7:0];
887
         lambdaReg_11 [7:0] <= lambda_11 [7:0];
888
         lambdaReg_12 [7:0] <= lambda_12 [7:0];
889
         lambdaReg_13 [7:0] <= lambda_13 [7:0];
890
         lambdaReg_14 [7:0] <= lambda_14 [7:0];
891
         lambdaReg_15 [7:0] <= lambda_15 [7:0];
892
         lambdaReg_16 [7:0] <= lambda_16 [7:0];
893
         lambdaReg_17 [7:0] <= lambda_17 [7:0];
894
         lambdaReg_18 [7:0] <= lambda_18 [7:0];
895
         lambdaReg_19 [7:0] <= lambda_19 [7:0];
896
         lambdaReg_20 [7:0] <= lambda_20 [7:0];
897
         lambdaReg_21 [7:0] <= lambda_21 [7:0];
898
      end
899
   end
900
 
901
 
902
 
903
   //------------------------------------------------------------------
904
   // + omegaReg_0,..., omegaReg_21
905
   //------------------------------------------------------------------
906
   reg [7:0]   omegaReg_0;
907
   reg [7:0]   omegaReg_1;
908
   reg [7:0]   omegaReg_2;
909
   reg [7:0]   omegaReg_3;
910
   reg [7:0]   omegaReg_4;
911
   reg [7:0]   omegaReg_5;
912
   reg [7:0]   omegaReg_6;
913
   reg [7:0]   omegaReg_7;
914
   reg [7:0]   omegaReg_8;
915
   reg [7:0]   omegaReg_9;
916
   reg [7:0]   omegaReg_10;
917
   reg [7:0]   omegaReg_11;
918
   reg [7:0]   omegaReg_12;
919
   reg [7:0]   omegaReg_13;
920
   reg [7:0]   omegaReg_14;
921
   reg [7:0]   omegaReg_15;
922
   reg [7:0]   omegaReg_16;
923
   reg [7:0]   omegaReg_17;
924
   reg [7:0]   omegaReg_18;
925
   reg [7:0]   omegaReg_19;
926
   reg [7:0]   omegaReg_20;
927
   reg [7:0]   omegaReg_21;
928
 
929
 
930
   always @(posedge CLK or negedge RESET) begin
931
      if (~RESET) begin
932
         omegaReg_0 [7:0]  <= 8'd0;
933
         omegaReg_1 [7:0]  <= 8'd0;
934
         omegaReg_2 [7:0]  <= 8'd0;
935
         omegaReg_3 [7:0]  <= 8'd0;
936
         omegaReg_4 [7:0]  <= 8'd0;
937
         omegaReg_5 [7:0]  <= 8'd0;
938
         omegaReg_6 [7:0]  <= 8'd0;
939
         omegaReg_7 [7:0]  <= 8'd0;
940
         omegaReg_8 [7:0]  <= 8'd0;
941
         omegaReg_9 [7:0]  <= 8'd0;
942
         omegaReg_10 [7:0] <= 8'd0;
943
         omegaReg_11 [7:0] <= 8'd0;
944
         omegaReg_12 [7:0] <= 8'd0;
945
         omegaReg_13 [7:0] <= 8'd0;
946
         omegaReg_14 [7:0] <= 8'd0;
947
         omegaReg_15 [7:0] <= 8'd0;
948
         omegaReg_16 [7:0] <= 8'd0;
949
         omegaReg_17 [7:0] <= 8'd0;
950
         omegaReg_18 [7:0] <= 8'd0;
951
         omegaReg_19 [7:0] <= 8'd0;
952
         omegaReg_20 [7:0] <= 8'd0;
953
         omegaReg_21 [7:0] <= 8'd0;
954
      end
955
      else if ((enable == 1'b1) && (doneEuclide == 1'b1)) begin
956
         omegaReg_0 [7:0]  <= omega_0 [7:0];
957
         omegaReg_1 [7:0]  <= omega_1 [7:0];
958
         omegaReg_2 [7:0]  <= omega_2 [7:0];
959
         omegaReg_3 [7:0]  <= omega_3 [7:0];
960
         omegaReg_4 [7:0]  <= omega_4 [7:0];
961
         omegaReg_5 [7:0]  <= omega_5 [7:0];
962
         omegaReg_6 [7:0]  <= omega_6 [7:0];
963
         omegaReg_7 [7:0]  <= omega_7 [7:0];
964
         omegaReg_8 [7:0]  <= omega_8 [7:0];
965
         omegaReg_9 [7:0]  <= omega_9 [7:0];
966
         omegaReg_10 [7:0] <= omega_10 [7:0];
967
         omegaReg_11 [7:0] <= omega_11 [7:0];
968
         omegaReg_12 [7:0] <= omega_12 [7:0];
969
         omegaReg_13 [7:0] <= omega_13 [7:0];
970
         omegaReg_14 [7:0] <= omega_14 [7:0];
971
         omegaReg_15 [7:0] <= omega_15 [7:0];
972
         omegaReg_16 [7:0] <= omega_16 [7:0];
973
         omegaReg_17 [7:0] <= omega_17 [7:0];
974
         omegaReg_18 [7:0] <= omega_18 [7:0];
975
         omegaReg_19 [7:0] <= omega_19 [7:0];
976
         omegaReg_20 [7:0] <= omega_20 [7:0];
977
         omegaReg_21 [7:0] <= omega_21 [7:0];
978
      end
979
   end
980
 
981
 
982
 
983
   //------------------------------------------------------------------
984
   // + omegaShifted_0, ..., omegaShifted_21
985
   //- Rs Shift Omega
986
   //------------------------------------------------------------------
987
    wire [7:0]   omegaShifted_0;
988
    wire [7:0]   omegaShifted_1;
989
    wire [7:0]   omegaShifted_2;
990
    wire [7:0]   omegaShifted_3;
991
    wire [7:0]   omegaShifted_4;
992
    wire [7:0]   omegaShifted_5;
993
    wire [7:0]   omegaShifted_6;
994
    wire [7:0]   omegaShifted_7;
995
    wire [7:0]   omegaShifted_8;
996
    wire [7:0]   omegaShifted_9;
997
    wire [7:0]   omegaShifted_10;
998
    wire [7:0]   omegaShifted_11;
999
    wire [7:0]   omegaShifted_12;
1000
    wire [7:0]   omegaShifted_13;
1001
    wire [7:0]   omegaShifted_14;
1002
    wire [7:0]   omegaShifted_15;
1003
    wire [7:0]   omegaShifted_16;
1004
    wire [7:0]   omegaShifted_17;
1005
    wire [7:0]   omegaShifted_18;
1006
    wire [7:0]   omegaShifted_19;
1007
    wire [7:0]   omegaShifted_20;
1008
    wire [7:0]   omegaShifted_21;
1009
 
1010
 
1011
   RsDecodeShiftOmega RsDecodeShiftOmega(
1012
      // Inputs
1013
      .omega_0           (omegaReg_0),
1014
      .omega_1           (omegaReg_1),
1015
      .omega_2           (omegaReg_2),
1016
      .omega_3           (omegaReg_3),
1017
      .omega_4           (omegaReg_4),
1018
      .omega_5           (omegaReg_5),
1019
      .omega_6           (omegaReg_6),
1020
      .omega_7           (omegaReg_7),
1021
      .omega_8           (omegaReg_8),
1022
      .omega_9           (omegaReg_9),
1023
      .omega_10          (omegaReg_10),
1024
      .omega_11          (omegaReg_11),
1025
      .omega_12          (omegaReg_12),
1026
      .omega_13          (omegaReg_13),
1027
      .omega_14          (omegaReg_14),
1028
      .omega_15          (omegaReg_15),
1029
      .omega_16          (omegaReg_16),
1030
      .omega_17          (omegaReg_17),
1031
      .omega_18          (omegaReg_18),
1032
      .omega_19          (omegaReg_19),
1033
      .omega_20          (omegaReg_20),
1034
      .omega_21          (omegaReg_21),
1035
      // Outputs
1036
      .omegaShifted_0    (omegaShifted_0),
1037
      .omegaShifted_1    (omegaShifted_1),
1038
      .omegaShifted_2    (omegaShifted_2),
1039
      .omegaShifted_3    (omegaShifted_3),
1040
      .omegaShifted_4    (omegaShifted_4),
1041
      .omegaShifted_5    (omegaShifted_5),
1042
      .omegaShifted_6    (omegaShifted_6),
1043
      .omegaShifted_7    (omegaShifted_7),
1044
      .omegaShifted_8    (omegaShifted_8),
1045
      .omegaShifted_9    (omegaShifted_9),
1046
      .omegaShifted_10   (omegaShifted_10),
1047
      .omegaShifted_11   (omegaShifted_11),
1048
      .omegaShifted_12   (omegaShifted_12),
1049
      .omegaShifted_13   (omegaShifted_13),
1050
      .omegaShifted_14   (omegaShifted_14),
1051
      .omegaShifted_15   (omegaShifted_15),
1052
      .omegaShifted_16   (omegaShifted_16),
1053
      .omegaShifted_17   (omegaShifted_17),
1054
      .omegaShifted_18   (omegaShifted_18),
1055
      .omegaShifted_19   (omegaShifted_19),
1056
      .omegaShifted_20   (omegaShifted_20),
1057
      .omegaShifted_21   (omegaShifted_21),
1058
      // Inputs
1059
      .numShifted        (numShiftedReg)
1060
   );
1061
 
1062
 
1063
 
1064
   //------------------------------------------------------------------
1065
   // + omegaShiftedReg_0,.., omegaShiftedReg_21
1066
   //------------------------------------------------------------------
1067
    reg [7:0]   omegaShiftedReg_0;
1068
    reg [7:0]   omegaShiftedReg_1;
1069
    reg [7:0]   omegaShiftedReg_2;
1070
    reg [7:0]   omegaShiftedReg_3;
1071
    reg [7:0]   omegaShiftedReg_4;
1072
    reg [7:0]   omegaShiftedReg_5;
1073
    reg [7:0]   omegaShiftedReg_6;
1074
    reg [7:0]   omegaShiftedReg_7;
1075
    reg [7:0]   omegaShiftedReg_8;
1076
    reg [7:0]   omegaShiftedReg_9;
1077
    reg [7:0]   omegaShiftedReg_10;
1078
    reg [7:0]   omegaShiftedReg_11;
1079
    reg [7:0]   omegaShiftedReg_12;
1080
    reg [7:0]   omegaShiftedReg_13;
1081
    reg [7:0]   omegaShiftedReg_14;
1082
    reg [7:0]   omegaShiftedReg_15;
1083
    reg [7:0]   omegaShiftedReg_16;
1084
    reg [7:0]   omegaShiftedReg_17;
1085
    reg [7:0]   omegaShiftedReg_18;
1086
    reg [7:0]   omegaShiftedReg_19;
1087
    reg [7:0]   omegaShiftedReg_20;
1088
    reg [7:0]   omegaShiftedReg_21;
1089
 
1090
 
1091
   always @(posedge CLK or negedge RESET) begin
1092
      if (~RESET) begin
1093
         omegaShiftedReg_0 [7:0]  <= 8'd0;
1094
         omegaShiftedReg_1 [7:0]  <= 8'd0;
1095
         omegaShiftedReg_2 [7:0]  <= 8'd0;
1096
         omegaShiftedReg_3 [7:0]  <= 8'd0;
1097
         omegaShiftedReg_4 [7:0]  <= 8'd0;
1098
         omegaShiftedReg_5 [7:0]  <= 8'd0;
1099
         omegaShiftedReg_6 [7:0]  <= 8'd0;
1100
         omegaShiftedReg_7 [7:0]  <= 8'd0;
1101
         omegaShiftedReg_8 [7:0]  <= 8'd0;
1102
         omegaShiftedReg_9 [7:0]  <= 8'd0;
1103
         omegaShiftedReg_10 [7:0] <= 8'd0;
1104
         omegaShiftedReg_11 [7:0] <= 8'd0;
1105
         omegaShiftedReg_12 [7:0] <= 8'd0;
1106
         omegaShiftedReg_13 [7:0] <= 8'd0;
1107
         omegaShiftedReg_14 [7:0] <= 8'd0;
1108
         omegaShiftedReg_15 [7:0] <= 8'd0;
1109
         omegaShiftedReg_16 [7:0] <= 8'd0;
1110
         omegaShiftedReg_17 [7:0] <= 8'd0;
1111
         omegaShiftedReg_18 [7:0] <= 8'd0;
1112
         omegaShiftedReg_19 [7:0] <= 8'd0;
1113
         omegaShiftedReg_20 [7:0] <= 8'd0;
1114
         omegaShiftedReg_21 [7:0] <= 8'd0;
1115
      end
1116
      else if (enable == 1'b1) begin
1117
         omegaShiftedReg_0 [7:0]  <= omegaShifted_0 [7:0];
1118
         omegaShiftedReg_1 [7:0]  <= omegaShifted_1 [7:0];
1119
         omegaShiftedReg_2 [7:0]  <= omegaShifted_2 [7:0];
1120
         omegaShiftedReg_3 [7:0]  <= omegaShifted_3 [7:0];
1121
         omegaShiftedReg_4 [7:0]  <= omegaShifted_4 [7:0];
1122
         omegaShiftedReg_5 [7:0]  <= omegaShifted_5 [7:0];
1123
         omegaShiftedReg_6 [7:0]  <= omegaShifted_6 [7:0];
1124
         omegaShiftedReg_7 [7:0]  <= omegaShifted_7 [7:0];
1125
         omegaShiftedReg_8 [7:0]  <= omegaShifted_8 [7:0];
1126
         omegaShiftedReg_9 [7:0]  <= omegaShifted_9 [7:0];
1127
         omegaShiftedReg_10 [7:0] <= omegaShifted_10 [7:0];
1128
         omegaShiftedReg_11 [7:0] <= omegaShifted_11 [7:0];
1129
         omegaShiftedReg_12 [7:0] <= omegaShifted_12 [7:0];
1130
         omegaShiftedReg_13 [7:0] <= omegaShifted_13 [7:0];
1131
         omegaShiftedReg_14 [7:0] <= omegaShifted_14 [7:0];
1132
         omegaShiftedReg_15 [7:0] <= omegaShifted_15 [7:0];
1133
         omegaShiftedReg_16 [7:0] <= omegaShifted_16 [7:0];
1134
         omegaShiftedReg_17 [7:0] <= omegaShifted_17 [7:0];
1135
         omegaShiftedReg_18 [7:0] <= omegaShifted_18 [7:0];
1136
         omegaShiftedReg_19 [7:0] <= omegaShifted_19 [7:0];
1137
         omegaShiftedReg_20 [7:0] <= omegaShifted_20 [7:0];
1138
         omegaShiftedReg_21 [7:0] <= omegaShifted_21 [7:0];
1139
      end
1140
   end
1141
 
1142
 
1143
 
1144
   //------------------------------------------------------------------
1145
   // + degreeOmega
1146
   //------------------------------------------------------------------
1147
   wire   [4:0]   degreeOmega;
1148
 
1149
 
1150
   RsDecodeDegree  RsDecodeDegree_1(
1151
      // Inputs
1152
      .polynom_0   (omegaShiftedReg_0),
1153
      .polynom_1   (omegaShiftedReg_1),
1154
      .polynom_2   (omegaShiftedReg_2),
1155
      .polynom_3   (omegaShiftedReg_3),
1156
      .polynom_4   (omegaShiftedReg_4),
1157
      .polynom_5   (omegaShiftedReg_5),
1158
      .polynom_6   (omegaShiftedReg_6),
1159
      .polynom_7   (omegaShiftedReg_7),
1160
      .polynom_8   (omegaShiftedReg_8),
1161
      .polynom_9   (omegaShiftedReg_9),
1162
      .polynom_10  (omegaShiftedReg_10),
1163
      .polynom_11  (omegaShiftedReg_11),
1164
      .polynom_12  (omegaShiftedReg_12),
1165
      .polynom_13  (omegaShiftedReg_13),
1166
      .polynom_14  (omegaShiftedReg_14),
1167
      .polynom_15  (omegaShiftedReg_15),
1168
      .polynom_16  (omegaShiftedReg_16),
1169
      .polynom_17  (omegaShiftedReg_17),
1170
      .polynom_18  (omegaShiftedReg_18),
1171
      .polynom_19  (omegaShiftedReg_19),
1172
      .polynom_20  (omegaShiftedReg_20),
1173
      .polynom_21  (omegaShiftedReg_21),
1174
      // Outputs
1175
      .degree      (degreeOmega)
1176
   );
1177
 
1178
 
1179
 
1180
   //------------------------------------------------------------------
1181
   // + lambdaReg2_0,.., lambdaReg2_21
1182
   //------------------------------------------------------------------
1183
   reg [7:0]   lambdaReg2_0;
1184
   reg [7:0]   lambdaReg2_1;
1185
   reg [7:0]   lambdaReg2_2;
1186
   reg [7:0]   lambdaReg2_3;
1187
   reg [7:0]   lambdaReg2_4;
1188
   reg [7:0]   lambdaReg2_5;
1189
   reg [7:0]   lambdaReg2_6;
1190
   reg [7:0]   lambdaReg2_7;
1191
   reg [7:0]   lambdaReg2_8;
1192
   reg [7:0]   lambdaReg2_9;
1193
   reg [7:0]   lambdaReg2_10;
1194
   reg [7:0]   lambdaReg2_11;
1195
   reg [7:0]   lambdaReg2_12;
1196
   reg [7:0]   lambdaReg2_13;
1197
   reg [7:0]   lambdaReg2_14;
1198
   reg [7:0]   lambdaReg2_15;
1199
   reg [7:0]   lambdaReg2_16;
1200
   reg [7:0]   lambdaReg2_17;
1201
   reg [7:0]   lambdaReg2_18;
1202
   reg [7:0]   lambdaReg2_19;
1203
   reg [7:0]   lambdaReg2_20;
1204
   reg [7:0]   lambdaReg2_21;
1205
 
1206
 
1207
   always @(posedge CLK or negedge RESET) begin
1208
      if (~RESET) begin
1209
         lambdaReg2_0 [7:0]  <= 8'd0;
1210
         lambdaReg2_1 [7:0]  <= 8'd0;
1211
         lambdaReg2_2 [7:0]  <= 8'd0;
1212
         lambdaReg2_3 [7:0]  <= 8'd0;
1213
         lambdaReg2_4 [7:0]  <= 8'd0;
1214
         lambdaReg2_5 [7:0]  <= 8'd0;
1215
         lambdaReg2_6 [7:0]  <= 8'd0;
1216
         lambdaReg2_7 [7:0]  <= 8'd0;
1217
         lambdaReg2_8 [7:0]  <= 8'd0;
1218
         lambdaReg2_9 [7:0]  <= 8'd0;
1219
         lambdaReg2_10 [7:0] <= 8'd0;
1220
         lambdaReg2_11 [7:0] <= 8'd0;
1221
         lambdaReg2_12 [7:0] <= 8'd0;
1222
         lambdaReg2_13 [7:0] <= 8'd0;
1223
         lambdaReg2_14 [7:0] <= 8'd0;
1224
         lambdaReg2_15 [7:0] <= 8'd0;
1225
         lambdaReg2_16 [7:0] <= 8'd0;
1226
         lambdaReg2_17 [7:0] <= 8'd0;
1227
         lambdaReg2_18 [7:0] <= 8'd0;
1228
         lambdaReg2_19 [7:0] <= 8'd0;
1229
         lambdaReg2_20 [7:0] <= 8'd0;
1230
         lambdaReg2_21 [7:0] <= 8'd0;
1231
      end
1232
      else if (enable == 1'b1) begin
1233
         lambdaReg2_0 [7:0]  <= lambdaReg_0 [7:0];
1234
         lambdaReg2_1 [7:0]  <= lambdaReg_1 [7:0];
1235
         lambdaReg2_2 [7:0]  <= lambdaReg_2 [7:0];
1236
         lambdaReg2_3 [7:0]  <= lambdaReg_3 [7:0];
1237
         lambdaReg2_4 [7:0]  <= lambdaReg_4 [7:0];
1238
         lambdaReg2_5 [7:0]  <= lambdaReg_5 [7:0];
1239
         lambdaReg2_6 [7:0]  <= lambdaReg_6 [7:0];
1240
         lambdaReg2_7 [7:0]  <= lambdaReg_7 [7:0];
1241
         lambdaReg2_8 [7:0]  <= lambdaReg_8 [7:0];
1242
         lambdaReg2_9 [7:0]  <= lambdaReg_9 [7:0];
1243
         lambdaReg2_10 [7:0] <= lambdaReg_10 [7:0];
1244
         lambdaReg2_11 [7:0] <= lambdaReg_11 [7:0];
1245
         lambdaReg2_12 [7:0] <= lambdaReg_12 [7:0];
1246
         lambdaReg2_13 [7:0] <= lambdaReg_13 [7:0];
1247
         lambdaReg2_14 [7:0] <= lambdaReg_14 [7:0];
1248
         lambdaReg2_15 [7:0] <= lambdaReg_15 [7:0];
1249
         lambdaReg2_16 [7:0] <= lambdaReg_16 [7:0];
1250
         lambdaReg2_17 [7:0] <= lambdaReg_17 [7:0];
1251
         lambdaReg2_18 [7:0] <= lambdaReg_18 [7:0];
1252
         lambdaReg2_19 [7:0] <= lambdaReg_19 [7:0];
1253
         lambdaReg2_20 [7:0] <= lambdaReg_20 [7:0];
1254
         lambdaReg2_21 [7:0] <= lambdaReg_21 [7:0];
1255
      end
1256
   end
1257
 
1258
 
1259
 
1260
   //------------------------------------------------------------------
1261
   // + degreeLambda
1262
   //------------------------------------------------------------------
1263
   wire [4:0]   degreeLambda;
1264
   RsDecodeDegree  RsDecodeDegree_2(
1265
      // Inputs
1266
      .polynom_0   (lambdaReg2_0),
1267
      .polynom_1   (lambdaReg2_1),
1268
      .polynom_2   (lambdaReg2_2),
1269
      .polynom_3   (lambdaReg2_3),
1270
      .polynom_4   (lambdaReg2_4),
1271
      .polynom_5   (lambdaReg2_5),
1272
      .polynom_6   (lambdaReg2_6),
1273
      .polynom_7   (lambdaReg2_7),
1274
      .polynom_8   (lambdaReg2_8),
1275
      .polynom_9   (lambdaReg2_9),
1276
      .polynom_10  (lambdaReg2_10),
1277
      .polynom_11  (lambdaReg2_11),
1278
      .polynom_12  (lambdaReg2_12),
1279
      .polynom_13  (lambdaReg2_13),
1280
      .polynom_14  (lambdaReg2_14),
1281
      .polynom_15  (lambdaReg2_15),
1282
      .polynom_16  (lambdaReg2_16),
1283
      .polynom_17  (lambdaReg2_17),
1284
      .polynom_18  (lambdaReg2_18),
1285
      .polynom_19  (lambdaReg2_19),
1286
      .polynom_20  (lambdaReg2_20),
1287
      .polynom_21  (lambdaReg2_21),
1288
      // Outputs
1289
      .degree      (degreeLambda)
1290
   );
1291
 
1292
 
1293
 
1294
   //------------------------------------------------------------------
1295
   // + degreeOmegaReg
1296
   // + degreeLambdaReg
1297
   //------------------------------------------------------------------
1298
   reg [4:0]   degreeOmegaReg;
1299
   reg [4:0]   degreeLambdaReg;
1300
   always @(posedge CLK or negedge RESET) begin
1301
      if (~RESET) begin
1302
         degreeOmegaReg  <= 5'd0;
1303
         degreeLambdaReg <= 5'd0;
1304
      end
1305
      else if ((enable == 1'b1) && (doneShiftReg == 1'b1)) begin
1306
         degreeOmegaReg  <= degreeOmega;
1307
         degreeLambdaReg <= degreeLambda;
1308
      end
1309
   end
1310
 
1311
 
1312
 
1313
   //------------------------------------------------------------------
1314
   // + doneShiftReg
1315
   //------------------------------------------------------------------
1316
   always @(posedge CLK or negedge RESET) begin
1317
      if (~RESET) begin
1318
         doneShiftReg <= 1'b0;
1319
      end
1320
      else if (enable == 1'b1) begin
1321
         doneShiftReg <= doneShift;
1322
      end
1323
   end
1324
 
1325
 
1326
 
1327
   //------------------------------------------------------------------
1328
   // + 
1329
   //- RS Chien Search Algorithm
1330
   //------------------------------------------------------------------
1331
   wire [4:0]   numErrorChien;
1332
   wire [7:0]   error;
1333
   wire         delayedErasureIn;
1334
 
1335
 
1336
   RsDecodeChien RsDecodeChien(
1337
      // Inputs
1338
      .CLK            (CLK),
1339
      .RESET          (RESET),
1340
      .enable         (enable),
1341
      .sync           (doneShiftReg),
1342
      .erasureIn      (delayedErasureIn),
1343
      .lambdaIn_0     (lambdaReg2_0),
1344
      .lambdaIn_1     (lambdaReg2_1),
1345
      .lambdaIn_2     (lambdaReg2_2),
1346
      .lambdaIn_3     (lambdaReg2_3),
1347
      .lambdaIn_4     (lambdaReg2_4),
1348
      .lambdaIn_5     (lambdaReg2_5),
1349
      .lambdaIn_6     (lambdaReg2_6),
1350
      .lambdaIn_7     (lambdaReg2_7),
1351
      .lambdaIn_8     (lambdaReg2_8),
1352
      .lambdaIn_9     (lambdaReg2_9),
1353
      .lambdaIn_10    (lambdaReg2_10),
1354
      .lambdaIn_11    (lambdaReg2_11),
1355
      .lambdaIn_12    (lambdaReg2_12),
1356
      .lambdaIn_13    (lambdaReg2_13),
1357
      .lambdaIn_14    (lambdaReg2_14),
1358
      .lambdaIn_15    (lambdaReg2_15),
1359
      .lambdaIn_16    (lambdaReg2_16),
1360
      .lambdaIn_17    (lambdaReg2_17),
1361
      .lambdaIn_18    (lambdaReg2_18),
1362
      .lambdaIn_19    (lambdaReg2_19),
1363
      .lambdaIn_20    (lambdaReg2_20),
1364
      .lambdaIn_21    (lambdaReg2_21),
1365
      .omegaIn_0      (omegaShiftedReg_0),
1366
      .omegaIn_1      (omegaShiftedReg_1),
1367
      .omegaIn_2      (omegaShiftedReg_2),
1368
      .omegaIn_3      (omegaShiftedReg_3),
1369
      .omegaIn_4      (omegaShiftedReg_4),
1370
      .omegaIn_5      (omegaShiftedReg_5),
1371
      .omegaIn_6      (omegaShiftedReg_6),
1372
      .omegaIn_7      (omegaShiftedReg_7),
1373
      .omegaIn_8      (omegaShiftedReg_8),
1374
      .omegaIn_9      (omegaShiftedReg_9),
1375
      .omegaIn_10     (omegaShiftedReg_10),
1376
      .omegaIn_11     (omegaShiftedReg_11),
1377
      .omegaIn_12     (omegaShiftedReg_12),
1378
      .omegaIn_13     (omegaShiftedReg_13),
1379
      .omegaIn_14     (omegaShiftedReg_14),
1380
      .omegaIn_15     (omegaShiftedReg_15),
1381
      .omegaIn_16     (omegaShiftedReg_16),
1382
      .omegaIn_17     (omegaShiftedReg_17),
1383
      .omegaIn_18     (omegaShiftedReg_18),
1384
      .omegaIn_19     (omegaShiftedReg_19),
1385
      .omegaIn_20     (omegaShiftedReg_20),
1386
      .omegaIn_21     (omegaShiftedReg_21),
1387
      .epsilonIn_0    (epsilonReg3_0),
1388
      .epsilonIn_1    (epsilonReg3_1),
1389
      .epsilonIn_2    (epsilonReg3_2),
1390
      .epsilonIn_3    (epsilonReg3_3),
1391
      .epsilonIn_4    (epsilonReg3_4),
1392
      .epsilonIn_5    (epsilonReg3_5),
1393
      .epsilonIn_6    (epsilonReg3_6),
1394
      .epsilonIn_7    (epsilonReg3_7),
1395
      .epsilonIn_8    (epsilonReg3_8),
1396
      .epsilonIn_9    (epsilonReg3_9),
1397
      .epsilonIn_10   (epsilonReg3_10),
1398
      .epsilonIn_11   (epsilonReg3_11),
1399
      .epsilonIn_12   (epsilonReg3_12),
1400
      .epsilonIn_13   (epsilonReg3_13),
1401
      .epsilonIn_14   (epsilonReg3_14),
1402
      .epsilonIn_15   (epsilonReg3_15),
1403
      .epsilonIn_16   (epsilonReg3_16),
1404
      .epsilonIn_17   (epsilonReg3_17),
1405
      .epsilonIn_18   (epsilonReg3_18),
1406
      .epsilonIn_19   (epsilonReg3_19),
1407
      .epsilonIn_20   (epsilonReg3_20),
1408
      .epsilonIn_21   (epsilonReg3_21),
1409
      .epsilonIn_22   (epsilonReg3_22),
1410
      // Outputs
1411
      .errorOut       (error),
1412
      .numError       (numErrorChien),
1413
      .done           (doneChien)
1414
   );
1415
 
1416
 
1417
 
1418
   //------------------------------------------------------------------
1419
   // + delayOut
1420
   //- Rs Decode Delay
1421
   //------------------------------------------------------------------
1422
   wire [8:0]   delayOut;
1423
   wire [8:0]   delayIn;
1424
 
1425
 
1426
   RsDecodeDelay  RsDecodeDelay(
1427
      // Inputs
1428
      .CLK      (CLK),
1429
      .RESET    (RESET),
1430
      .enable   (enable),
1431
      .dataIn   (delayIn),
1432
      // Outputs
1433
      .dataOut  (delayOut)
1434
   );
1435
 
1436
 
1437
 
1438
   //------------------------------------------------------------------
1439
   // + delayIn, delayedErasureIn, delayedDataIn
1440
   //------------------------------------------------------------------
1441
   wire [7:0]   delayedDataIn;
1442
   assign   delayIn          = {erasureIn, dataInCheck};
1443
   assign   delayedErasureIn = delayOut[8];
1444
   assign   delayedDataIn    = delayOut[7:0];
1445
 
1446
 
1447
 
1448
   //------------------------------------------------------------------------
1449
   // + OutputValidReg
1450
   //------------------------------------------------------------------------
1451
   reg         OutputValidReg;
1452
   reg [3:0]   startReg;
1453
 
1454
   always @(posedge CLK or negedge RESET) begin
1455
      if (~RESET) begin
1456
         OutputValidReg   <= 1'b0;
1457
      end
1458
      else if (enable == 1'b1) begin
1459
         if (startReg[1] == 1'b1) begin
1460
            OutputValidReg   <= 1'b1;
1461
         end
1462
         else if (doneReg[0] == 1'b1) begin
1463
            OutputValidReg   <= 1'b0;
1464
         end
1465
      end
1466
   end
1467
 
1468
 
1469
 
1470
   //------------------------------------------------------------------
1471
   // + startReg, doneReg
1472
   //------------------------------------------------------------------
1473
   always @(posedge CLK or negedge RESET) begin
1474
      if (~RESET) begin
1475
         startReg   [3:0] <= 4'd0;
1476
         doneReg   [2:0]  <= 3'd0;
1477
      end
1478
      else if (enable == 1'b1) begin
1479
         startReg [3:0] <= {doneShiftReg, startReg[3:1]};
1480
         doneReg  [2:0] <= {doneChien, doneReg[2:1]};
1481
      end
1482
   end
1483
 
1484
 
1485
 
1486
   //------------------------------------------------------------------
1487
   // + numErrorLambdaReg
1488
   //------------------------------------------------------------------
1489
   reg [4:0]   numErrorLambdaReg;
1490
   always @(posedge CLK or negedge RESET) begin
1491
      if (~RESET) begin
1492
         numErrorLambdaReg   [4:0] <= 5'd0;
1493
      end
1494
      else if ((enable == 1'b1) && (startReg[1] == 1'b1)) begin
1495
         numErrorLambdaReg   <= degreeLambdaReg;
1496
      end
1497
   end
1498
 
1499
 
1500
 
1501
   //------------------------------------------------------------------
1502
   // + degreeErrorReg
1503
   //------------------------------------------------------------------
1504
   reg         degreeErrorReg;
1505
   always @(posedge CLK or negedge RESET) begin
1506
      if (~RESET) begin
1507
         degreeErrorReg   <= 1'b0;
1508
      end
1509
      else if ((enable == 1'b1) && (startReg[1] == 1'b1)) begin
1510
         if (({1'b0, degreeOmegaReg}) <= ({1'b0, degreeLambdaReg}) + ({1'b0, degreeEpsilonReg4})) begin
1511
            degreeErrorReg   <= 1'b0;
1512
         end
1513
         else begin
1514
            degreeErrorReg   <= 1'b1;
1515
         end
1516
      end
1517
   end
1518
 
1519
 
1520
 
1521
   //------------------------------------------------------------------
1522
   // + numErrorReg
1523
   //------------------------------------------------------------------
1524
   reg    [4:0]   numErrorReg;
1525
   always @(posedge CLK or negedge RESET) begin
1526
      if (~RESET) begin
1527
         numErrorReg [4:0] <= 5'd0;
1528
      end
1529
      else if ((enable == 1'b1) && (doneReg[0] == 1'b1)) begin
1530
         numErrorReg [4:0] <= numErrorChien[4:0];
1531
      end
1532
   end
1533
 
1534
 
1535
 
1536
   //------------------------------------------------------------------
1537
   // + failErasureReg
1538
   //-
1539
   //------------------------------------------------------------------
1540
   reg failErasureReg;
1541
   always @(posedge CLK or negedge RESET) begin
1542
      if (~RESET) begin
1543
         failErasureReg   <= 1'b0;
1544
      end
1545
      else if ((enable == 1'b1) && (doneErasure == 1'b1)) begin
1546
         failErasureReg   <= failErasure;
1547
      end
1548
   end
1549
 
1550
 
1551
 
1552
   //------------------------------------------------------------------
1553
   // + failErasureReg2
1554
   //-
1555
   //------------------------------------------------------------------
1556
   reg failErasureReg2;
1557
   always @(posedge CLK or negedge RESET) begin
1558
      if (~RESET) begin
1559
         failErasureReg2   <= 1'b0;
1560
      end
1561
      else if ((enable == 1'b1) && (donePolymul == 1'b1)) begin
1562
         failErasureReg2   <= failErasureReg;
1563
      end
1564
   end
1565
 
1566
 
1567
 
1568
   //------------------------------------------------------------------
1569
   // + failErasureReg3
1570
   //-
1571
   //------------------------------------------------------------------
1572
   reg failErasureReg3;
1573
   always @(posedge CLK or negedge RESET) begin
1574
      if (~RESET) begin
1575
         failErasureReg3   <= 1'b0;
1576
      end
1577
      else if ((enable == 1'b1) && (doneEuclide == 1'b1)) begin
1578
         failErasureReg3   <= failErasureReg2;
1579
      end
1580
   end
1581
 
1582
 
1583
 
1584
   //------------------------------------------------------------------
1585
   // + failErasureReg4
1586
   //-
1587
   //------------------------------------------------------------------
1588
   reg failErasureReg4;
1589
   always @(posedge CLK or negedge RESET) begin
1590
      if (~RESET) begin
1591
         failErasureReg4   <= 1'b0;
1592
      end
1593
      else if ((enable == 1'b1) && (doneShiftReg == 1'b1)) begin
1594
         failErasureReg4   <= failErasureReg3;
1595
      end
1596
   end
1597
 
1598
 
1599
 
1600
   //------------------------------------------------------------------
1601
   // + failErasureReg5
1602
   //-
1603
   //------------------------------------------------------------------
1604
   reg failErasureReg5;
1605
   always @(posedge CLK or negedge RESET) begin
1606
      if (~RESET) begin
1607
         failErasureReg5   <= 1'b0;
1608
      end
1609
      else if ((enable == 1'b1) && (startReg[1]  == 1'b1)) begin
1610
         failErasureReg5   <= failErasureReg4;
1611
      end
1612
   end
1613
 
1614
 
1615
 
1616
   //------------------------------------------------------------------
1617
   // + failReg
1618
   //------------------------------------------------------------------
1619
   reg          failReg;
1620
 
1621
   always @(posedge CLK or negedge RESET) begin
1622
      if (~RESET) begin
1623
         failReg <= 1'b0;
1624
      end
1625
      else if ((enable == 1'b1) && (doneReg[0] == 1'b1)) begin
1626
         if ((numErrorLambdaReg == numErrorChien) && (degreeErrorReg == 1'b0) && (failErasureReg5 == 1'b0)) begin
1627
            failReg <= 1'b0;
1628
         end
1629
         else begin
1630
            failReg <= 1'b1;
1631
         end
1632
      end
1633
   end
1634
 
1635
 
1636
 
1637
   //------------------------------------------------------------------
1638
   // + DataOutInner
1639
   //------------------------------------------------------------------
1640
   reg [7:0]   DataOutInner;
1641
   always @(posedge CLK or negedge RESET) begin
1642
      if (~RESET) begin
1643
         DataOutInner <= 8'd0;
1644
      end
1645
      else begin
1646
         DataOutInner <= delayedDataIn ^ error;
1647
      end
1648
   end
1649
 
1650
 
1651
 
1652
   //------------------------------------------------------------------
1653
   // + DelayedDataOutInner
1654
   //------------------------------------------------------------------
1655
   reg [7:0]   DelayedDataOutInner;
1656
   always @(posedge CLK or negedge RESET) begin
1657
      if (~RESET) begin
1658
         DelayedDataOutInner <= 8'd0;
1659
      end
1660
      else begin
1661
         DelayedDataOutInner <= delayedDataIn;
1662
      end
1663
   end
1664
 
1665
 
1666
 
1667
   //------------------------------------------------------------------
1668
   // - enableFF 
1669
   //------------------------------------------------------------------
1670
   reg       enableFF;
1671
 
1672
 
1673
   always @(posedge CLK or negedge RESET) begin
1674
      if (~RESET) begin
1675
         enableFF <= 1'b0;
1676
      end
1677
      else begin
1678
         enableFF <= enable;
1679
      end
1680
   end
1681
 
1682
 
1683
 
1684
   //------------------------------------------------------------------
1685
   // - FF for Outputs 
1686
   //------------------------------------------------------------------
1687
   reg         startRegInner;
1688
   reg         doneRegInner;
1689
   reg [7:0]   numErrorRegInner;
1690
   reg [7:0]   numErasureRegInner;
1691
   reg         failRegInner;
1692
 
1693
 
1694
   always @(posedge CLK or negedge RESET) begin
1695
      if (~RESET) begin
1696
         startRegInner       <= 1'b0;
1697
         doneRegInner        <= 1'b0;
1698
         numErrorRegInner    <= 8'd0;
1699
         numErasureRegInner  <= 8'd0;
1700
         failRegInner        <= 1'b0;
1701
      end
1702
      else begin
1703
         startRegInner       <= startReg[0];
1704
         doneRegInner        <= doneReg[0];
1705
         numErrorRegInner    <= { 3'd0, numErrorReg[4:0]};
1706
         numErasureRegInner  <= { 3'd0, numErasureReg[4:0]};
1707
         failRegInner        <= failReg;
1708
      end
1709
   end
1710
 
1711
 
1712
 
1713
   //------------------------------------------------------------------
1714
   // - OutputValidRegInner 
1715
   //------------------------------------------------------------------
1716
   reg         OutputValidRegInner;
1717
 
1718
   always @(posedge CLK or negedge RESET) begin
1719
      if (~RESET) begin
1720
         OutputValidRegInner <= 1'b0;
1721
      end
1722
      else if (enableFF == 1'b1) begin
1723
         OutputValidRegInner <= OutputValidReg;
1724
      end
1725
      else begin
1726
         OutputValidRegInner <= 1'b0;
1727
      end
1728
   end
1729
 
1730
 
1731
 
1732
   //------------------------------------------------------------------
1733
   // - Output Ports
1734
   //------------------------------------------------------------------
1735
   assign   outEnable   = OutputValidRegInner;
1736
   assign   outStartPls = startRegInner;
1737
   assign   outDone     = doneRegInner;
1738
   assign   outData     = DataOutInner;
1739
   assign   errorNum    = numErrorRegInner;
1740
   assign   erasureNum  = numErasureRegInner;
1741
   assign   delayedData = DelayedDataOutInner;
1742
   assign   fail        = failRegInner;
1743
 
1744
 
1745
endmodule

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