OpenCores
URL https://opencores.org/ocsvn/16_qam_qadm/16_qam_qadm/trunk

Subversion Repositories 16_qam_qadm

[/] [16_qam_qadm/] [trunk/] [QADM_16.vhd] - Blame information for rev 5

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1 5 iamalien 
--*************************************************************************
2 
-- Project    : 16 Quadrature Amplitude Demodulator                       *
3 
--                                                                        *
4 
-- File Name  : QADM_16.vhd                                               *
5 
--                                                                        *
6 
-- Author     : Kaustubh Chaudhari                                        *
7 
--                                                                        *
8 
-- Email      : kaustubhcha305@gmail.com                                  *
9 
--                                                                        *
10 
-- Description: 16 QADM, requires 10 bit QAM i/p and gives 4 bit Demod o/p*
11 
--                                                                        *
12 
--*************************************************************************
13 
--                                                                        *
14 
-- Copyright (C) 2016 Author                                              *
15 
--                                                                        *
16 
-- This program is free software: you can redistribute it and/or modify   *
17 
-- it under the terms of the GNU General Public License as published by   *
18 
-- the Free Software Foundation, either version 3 of the License, or      *
19 
-- (at your option) any later version.                                    *
20 
--                                                                        *
21 
-- This program is distributed in the hope that it will be useful,        *
22 
-- but WITHOUT ANY WARRANTY; without even the implied warranty of         *
23 
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
24 
-- GNU General Public License for more details.                           *
25 
--                                                                        *
26 
-- You should have received a copy of the GNU General Public License      *
27 
-- along with this program.  If not, see <http://www.gnu.org/licenses/>.  *
28 
--*************************************************************************
29 
library IEEE;
30 
use IEEE.STD_LOGIC_1164.ALL;
31 
use IEEE.STD_LOGIC_UNSIGNED.ALL;
32 
USE IEEE.NUMERIC_STD.ALL;
33 
 
34 
entity QADM_16 is
35 
PORT(output:  OUT  std_logic_vector(3 downto 0);  --4 bit output depending on i/p QAM wave
36 
     clk:  IN  std_logic; --clock
37 
         inp: IN  std_logic_vector(9 downto 0) --input in 10bit resolution
38 
    );
39 
end QADM_16;
40 
 
41 
architecture Behavioral of QADM_16 is
42 
type sine_array is array (0 to 2047) of integer range 0 to 1023;
43 
signal sine1 : sine_array:=(512, 513, 514, 515, 515, 516, 517, 518, 519, 519, 520, 521, 522, 522, 523, 524,
44 
525, 526, 526, 527, 528, 529, 529, 530, 531, 532, 533, 533, 534, 535, 536, 536,
45 
537, 538, 539, 539, 540, 541, 542, 542, 543, 544, 545, 546, 546, 547, 548, 549,
46 
549, 550, 551, 551, 552, 553, 554, 554, 555, 556, 557, 557, 558, 559, 560, 560,
47 
561, 562, 562, 563, 564, 565, 565, 566, 567, 567, 568, 569, 570, 570, 571, 572,
48 
572, 573, 574, 574, 575, 576, 576, 577, 578, 578, 579, 580, 580, 581, 582, 582,
49 
583, 584, 584, 585, 586, 586, 587, 587, 588, 589, 589, 590, 591, 591, 592, 592,
50 
593, 594, 594, 595, 595, 596, 597, 597, 598, 598, 599, 599, 600, 601, 601, 602,
51 
602, 603, 603, 604, 604, 605, 605, 606, 606, 607, 608, 608, 609, 609, 610, 610,
52 
611, 611, 612, 612, 612, 613, 613, 614, 614, 615, 615, 616, 616, 617, 617, 618,
53 
618, 618, 619, 619, 620, 620, 620, 621, 621, 622, 622, 622, 623, 623, 624, 624,
54 
624, 625, 625, 625, 626, 626, 626, 627, 627, 627, 628, 628, 628, 629, 629, 629,
55 
630, 630, 630, 630, 631, 631, 631, 632, 632, 632, 632, 633, 633, 633, 633, 634,
56 
634, 634, 634, 634, 635, 635, 635, 635, 635, 636, 636, 636, 636, 636, 636, 637,
57 
637, 637, 637, 637, 637, 637, 638, 638, 638, 638, 638, 638, 638, 638, 638, 638,
58 
638, 639, 639, 639, 639, 639, 639, 639, 639, 639, 639, 639, 639, 639, 639, 639,
59 
639, 639, 639, 639, 639, 639, 639, 639, 639, 639, 639, 639, 639, 639, 638, 638,
60 
638, 638, 638, 638, 638, 638, 638, 638, 638, 637, 637, 637, 637, 637, 637, 637,
61 
636, 636, 636, 636, 636, 636, 635, 635, 635, 635, 635, 634, 634, 634, 634, 634,
62 
633, 633, 633, 633, 632, 632, 632, 632, 631, 631, 631, 630, 630, 630, 630, 629,
63 
629, 629, 628, 628, 628, 627, 627, 627, 626, 626, 626, 625, 625, 625, 624, 624,
64 
624, 623, 623, 622, 622, 622, 621, 621, 620, 620, 620, 619, 619, 618, 618, 618,
65 
617, 617, 616, 616, 615, 615, 614, 614, 613, 613, 612, 612, 612, 611, 611, 610,
66 
610, 609, 609, 608, 608, 607, 606, 606, 605, 605, 604, 604, 603, 603, 602, 602,
67 
601, 601, 600, 599, 599, 598, 598, 597, 597, 596, 595, 595, 594, 594, 593, 592,
68 
592, 591, 591, 590, 589, 589, 588, 587, 587, 586, 586, 585, 584, 584, 583, 582,
69 
582, 581, 580, 580, 579, 578, 578, 577, 576, 576, 575, 574, 574, 573, 572, 572,
70 
571, 570, 570, 569, 568, 567, 567, 566, 565, 565, 564, 563, 562, 562, 561, 560,
71 
560, 559, 558, 557, 557, 556, 555, 554, 554, 553, 552, 551, 551, 550, 549, 549,
72 
548, 547, 546, 546, 545, 544, 543, 542, 542, 541, 540, 539, 539, 538, 537, 536,
73 
536, 535, 534, 533, 533, 532, 531, 530, 529, 529, 528, 527, 526, 526, 525, 524,
74 
523, 522, 522, 521, 520, 519, 519, 518, 517, 516, 515, 515, 514, 513, 512, 512,
75 
511, 510, 509, 508, 508, 507, 506, 505, 504, 504, 503, 502, 501, 501, 500, 499,
76 
498, 497, 497, 496, 495, 494, 494, 493, 492, 491, 490, 490, 489, 488, 487, 487,
77 
486, 485, 484, 484, 483, 482, 481, 481, 480, 479, 478, 477, 477, 476, 475, 474,
78 
474, 473, 472, 472, 471, 470, 469, 469, 468, 467, 466, 466, 465, 464, 463, 463,
79 
462, 461, 461, 460, 459, 458, 458, 457, 456, 456, 455, 454, 453, 453, 452, 451,
80 
451, 450, 449, 449, 448, 447, 447, 446, 445, 445, 444, 443, 443, 442, 441, 441,
81 
440, 439, 439, 438, 437, 437, 436, 436, 435, 434, 434, 433, 432, 432, 431, 431,
82 
430, 429, 429, 428, 428, 427, 426, 426, 425, 425, 424, 424, 423, 422, 422, 421,
83 
421, 420, 420, 419, 419, 418, 418, 417, 417, 416, 415, 415, 414, 414, 413, 413,
84 
412, 412, 411, 411, 411, 410, 410, 409, 409, 408, 408, 407, 407, 406, 406, 405,
85 
405, 405, 404, 404, 403, 403, 403, 402, 402, 401, 401, 401, 400, 400, 399, 399,
86 
399, 398, 398, 398, 397, 397, 397, 396, 396, 396, 395, 395, 395, 394, 394, 394,
87 
393, 393, 393, 393, 392, 392, 392, 391, 391, 391, 391, 390, 390, 390, 390, 389,
88 
389, 389, 389, 389, 388, 388, 388, 388, 388, 387, 387, 387, 387, 387, 387, 386,
89 
386, 386, 386, 386, 386, 386, 385, 385, 385, 385, 385, 385, 385, 385, 385, 385,
90 
385, 384, 384, 384, 384, 384, 384, 384, 384, 384, 384, 384, 384, 384, 384, 384,
91 
384, 384, 384, 384, 384, 384, 384, 384, 384, 384, 384, 384, 384, 384, 385, 385,
92 
385, 385, 385, 385, 385, 385, 385, 385, 385, 386, 386, 386, 386, 386, 386, 386,
93 
387, 387, 387, 387, 387, 387, 388, 388, 388, 388, 388, 389, 389, 389, 389, 389,
94 
390, 390, 390, 390, 391, 391, 391, 391, 392, 392, 392, 393, 393, 393, 393, 394,
95 
394, 394, 395, 395, 395, 396, 396, 396, 397, 397, 397, 398, 398, 398, 399, 399,
96 
399, 400, 400, 401, 401, 401, 402, 402, 403, 403, 403, 404, 404, 405, 405, 405,
97 
406, 406, 407, 407, 408, 408, 409, 409, 410, 410, 411, 411, 411, 412, 412, 413,
98 
413, 414, 414, 415, 415, 416, 417, 417, 418, 418, 419, 419, 420, 420, 421, 421,
99 
422, 422, 423, 424, 424, 425, 425, 426, 426, 427, 428, 428, 429, 429, 430, 431,
100 
431, 432, 432, 433, 434, 434, 435, 436, 436, 437, 437, 438, 439, 439, 440, 441,
101 
441, 442, 443, 443, 444, 445, 445, 446, 447, 447, 448, 449, 449, 450, 451, 451,
102 
452, 453, 453, 454, 455, 456, 456, 457, 458, 458, 459, 460, 461, 461, 462, 463,
103 
463, 464, 465, 466, 466, 467, 468, 469, 469, 470, 471, 472, 472, 473, 474, 474,
104 
475, 476, 477, 477, 478, 479, 480, 481, 481, 482, 483, 484, 484, 485, 486, 487,
105 
487, 488, 489, 490, 490, 491, 492, 493, 494, 494, 495, 496, 497, 497, 498, 499,
106 
500, 501, 501, 502, 503, 504, 504, 505, 506, 507, 508, 508, 509, 510, 511, 512,
107 
512, 513, 514, 515, 515, 516, 517, 518, 519, 519, 520, 521, 522, 522, 523, 524,
108 
525, 526, 526, 527, 528, 529, 529, 530, 531, 532, 533, 533, 534, 535, 536, 536,
109 
537, 538, 539, 539, 540, 541, 542, 542, 543, 544, 545, 546, 546, 547, 548, 549,
110 
549, 550, 551, 551, 552, 553, 554, 554, 555, 556, 557, 557, 558, 559, 560, 560,
111 
561, 562, 562, 563, 564, 565, 565, 566, 567, 567, 568, 569, 570, 570, 571, 572,
112 
572, 573, 574, 574, 575, 576, 576, 577, 578, 578, 579, 580, 580, 581, 582, 582,
113 
583, 584, 584, 585, 586, 586, 587, 587, 588, 589, 589, 590, 591, 591, 592, 592,
114 
593, 594, 594, 595, 595, 596, 597, 597, 598, 598, 599, 599, 600, 601, 601, 602,
115 
602, 603, 603, 604, 604, 605, 605, 606, 606, 607, 608, 608, 609, 609, 610, 610,
116 
611, 611, 612, 612, 612, 613, 613, 614, 614, 615, 615, 616, 616, 617, 617, 618,
117 
618, 618, 619, 619, 620, 620, 620, 621, 621, 622, 622, 622, 623, 623, 624, 624,
118 
624, 625, 625, 625, 626, 626, 626, 627, 627, 627, 628, 628, 628, 629, 629, 629,
119 
630, 630, 630, 630, 631, 631, 631, 632, 632, 632, 632, 633, 633, 633, 633, 634,
120 
634, 634, 634, 634, 635, 635, 635, 635, 635, 636, 636, 636, 636, 636, 636, 637,
121 
637, 637, 637, 637, 637, 637, 638, 638, 638, 638, 638, 638, 638, 638, 638, 638,
122 
638, 639, 639, 639, 639, 639, 639, 639, 639, 639, 639, 639, 639, 639, 639, 639,
123 
639, 639, 639, 639, 639, 639, 639, 639, 639, 639, 639, 639, 639, 639, 638, 638,
124 
638, 638, 638, 638, 638, 638, 638, 638, 638, 637, 637, 637, 637, 637, 637, 637,
125 
636, 636, 636, 636, 636, 636, 635, 635, 635, 635, 635, 634, 634, 634, 634, 634,
126 
633, 633, 633, 633, 632, 632, 632, 632, 631, 631, 631, 630, 630, 630, 630, 629,
127 
629, 629, 628, 628, 628, 627, 627, 627, 626, 626, 626, 625, 625, 625, 624, 624,
128 
624, 623, 623, 622, 622, 622, 621, 621, 620, 620, 620, 619, 619, 618, 618, 618,
129 
617, 617, 616, 616, 615, 615, 614, 614, 613, 613, 612, 612, 612, 611, 611, 610,
130 
610, 609, 609, 608, 608, 607, 606, 606, 605, 605, 604, 604, 603, 603, 602, 602,
131 
601, 601, 600, 599, 599, 598, 598, 597, 597, 596, 595, 595, 594, 594, 593, 592,
132 
592, 591, 591, 590, 589, 589, 588, 587, 587, 586, 586, 585, 584, 584, 583, 582,
133 
582, 581, 580, 580, 579, 578, 578, 577, 576, 576, 575, 574, 574, 573, 572, 572,
134 
571, 570, 570, 569, 568, 567, 567, 566, 565, 565, 564, 563, 562, 562, 561, 560,
135 
560, 559, 558, 557, 557, 556, 555, 554, 554, 553, 552, 551, 551, 550, 549, 549,
136 
548, 547, 546, 546, 545, 544, 543, 542, 542, 541, 540, 539, 539, 538, 537, 536,
137 
536, 535, 534, 533, 533, 532, 531, 530, 529, 529, 528, 527, 526, 526, 525, 524,
138 
523, 522, 522, 521, 520, 519, 519, 518, 517, 516, 515, 515, 514, 513, 512, 512,
139 
511, 510, 509, 508, 508, 507, 506, 505, 504, 504, 503, 502, 501, 501, 500, 499,
140 
498, 497, 497, 496, 495, 494, 494, 493, 492, 491, 490, 490, 489, 488, 487, 487,
141 
486, 485, 484, 484, 483, 482, 481, 481, 480, 479, 478, 477, 477, 476, 475, 474,
142 
474, 473, 472, 472, 471, 470, 469, 469, 468, 467, 466, 466, 465, 464, 463, 463,
143 
462, 461, 461, 460, 459, 458, 458, 457, 456, 456, 455, 454, 453, 453, 452, 451,
144 
451, 450, 449, 449, 448, 447, 447, 446, 445, 445, 444, 443, 443, 442, 441, 441,
145 
440, 439, 439, 438, 437, 437, 436, 436, 435, 434, 434, 433, 432, 432, 431, 431,
146 
430, 429, 429, 428, 428, 427, 426, 426, 425, 425, 424, 424, 423, 422, 422, 421,
147 
421, 420, 420, 419, 419, 418, 418, 417, 417, 416, 415, 415, 414, 414, 413, 413,
148 
412, 412, 411, 411, 411, 410, 410, 409, 409, 408, 408, 407, 407, 406, 406, 405,
149 
405, 405, 404, 404, 403, 403, 403, 402, 402, 401, 401, 401, 400, 400, 399, 399,
150 
399, 398, 398, 398, 397, 397, 397, 396, 396, 396, 395, 395, 395, 394, 394, 394,
151 
393, 393, 393, 393, 392, 392, 392, 391, 391, 391, 391, 390, 390, 390, 390, 389,
152 
389, 389, 389, 389, 388, 388, 388, 388, 388, 387, 387, 387, 387, 387, 387, 386,
153 
386, 386, 386, 386, 386, 386, 385, 385, 385, 385, 385, 385, 385, 385, 385, 385,
154 
385, 384, 384, 384, 384, 384, 384, 384, 384, 384, 384, 384, 384, 384, 384, 384,
155 
384, 384, 384, 384, 384, 384, 384, 384, 384, 384, 384, 384, 384, 384, 385, 385,
156 
385, 385, 385, 385, 385, 385, 385, 385, 385, 386, 386, 386, 386, 386, 386, 386,
157 
387, 387, 387, 387, 387, 387, 388, 388, 388, 388, 388, 389, 389, 389, 389, 389,
158 
390, 390, 390, 390, 391, 391, 391, 391, 392, 392, 392, 393, 393, 393, 393, 394,
159 
394, 394, 395, 395, 395, 396, 396, 396, 397, 397, 397, 398, 398, 398, 399, 399,
160 
399, 400, 400, 401, 401, 401, 402, 402, 403, 403, 403, 404, 404, 405, 405, 405,
161 
406, 406, 407, 407, 408, 408, 409, 409, 410, 410, 411, 411, 411, 412, 412, 413,
162 
413, 414, 414, 415, 415, 416, 417, 417, 418, 418, 419, 419, 420, 420, 421, 421,
163 
422, 422, 423, 424, 424, 425, 425, 426, 426, 427, 428, 428, 429, 429, 430, 431,
164 
431, 432, 432, 433, 434, 434, 435, 436, 436, 437, 437, 438, 439, 439, 440, 441,
165 
441, 442, 443, 443, 444, 445, 445, 446, 447, 447, 448, 449, 449, 450, 451, 451,
166 
452, 453, 453, 454, 455, 456, 456, 457, 458, 458, 459, 460, 461, 461, 462, 463,
167 
463, 464, 465, 466, 466, 467, 468, 469, 469, 470, 471, 472, 472, 473, 474, 474,
168 
475, 476, 477, 477, 478, 479, 480, 481, 481, 482, 483, 484, 484, 485, 486, 487,
169 
487, 488, 489, 490, 490, 491, 492, 493, 494, 494, 495, 496, 497, 497, 498, 499,
170 
500, 501, 501, 502, 503, 504, 504, 505, 506, 507, 508, 508, 509, 510, 511, 512);
171 
signal sine2 : sine_array:=(512, 515, 516, 518, 519, 521, 522, 524, 526, 527, 529, 530, 532, 533, 535, 537,
172 
538, 540, 541, 543, 544, 546, 547, 549, 551, 552, 554, 555, 557, 558, 560, 561,
173 
563, 564, 566, 567, 569, 571, 572, 574, 575, 577, 578, 580, 581, 583, 584, 586,
174 
587, 589, 590, 592, 593, 595, 596, 598, 599, 601, 602, 603, 605, 606, 608, 609,
175 
611, 612, 614, 615, 616, 618, 619, 621, 622, 624, 625, 626, 628, 629, 631, 632,
176 
633, 635, 636, 637, 639, 640, 642, 643, 644, 646, 647, 648, 650, 651, 652, 653,
177 
655, 656, 657, 659, 660, 661, 662, 664, 665, 666, 667, 669, 670, 671, 672, 674,
178 
675, 676, 677, 678, 680, 681, 682, 683, 684, 685, 687, 688, 689, 690, 691, 692,
179 
693, 694, 695, 697, 698, 699, 700, 701, 702, 703, 704, 705, 706, 707, 708, 709,
180 
710, 711, 712, 713, 714, 715, 716, 717, 718, 719, 719, 720, 721, 722, 723, 724,
181 
725, 726, 727, 727, 728, 729, 730, 731, 731, 732, 733, 734, 735, 735, 736, 737,
182 
738, 738, 739, 740, 740, 741, 742, 742, 743, 744, 744, 745, 746, 746, 747, 748,
183 
748, 749, 749, 750, 750, 751, 752, 752, 753, 753, 754, 754, 755, 755, 756, 756,
184 
756, 757, 757, 758, 758, 759, 759, 759, 760, 760, 760, 761, 761, 761, 762, 762,
185 
762, 763, 763, 763, 764, 764, 764, 764, 764, 765, 765, 765, 765, 765, 766, 766,
186 
766, 766, 766, 766, 766, 767, 767, 767, 767, 767, 767, 767, 767, 767, 767, 767,
187 
767, 767, 767, 767, 767, 767, 767, 767, 767, 767, 766, 766, 766, 766, 766, 766,
188 
766, 765, 765, 765, 765, 765, 764, 764, 764, 764, 764, 763, 763, 763, 762, 762,
189 
762, 761, 761, 761, 760, 760, 760, 759, 759, 759, 758, 758, 757, 757, 756, 756,
190 
756, 755, 755, 754, 754, 753, 753, 752, 752, 751, 750, 750, 749, 749, 748, 748,
191 
747, 746, 746, 745, 744, 744, 743, 742, 742, 741, 740, 740, 739, 738, 738, 737,
192 
736, 735, 735, 734, 733, 732, 731, 731, 730, 729, 728, 727, 727, 726, 725, 724,
193 
723, 722, 721, 720, 719, 719, 718, 717, 716, 715, 714, 713, 712, 711, 710, 709,
194 
708, 707, 706, 705, 704, 703, 702, 701, 700, 699, 698, 697, 695, 694, 693, 692,
195 
691, 690, 689, 688, 687, 685, 684, 683, 682, 681, 680, 678, 677, 676, 675, 674,
196 
672, 671, 670, 669, 667, 666, 665, 664, 662, 661, 660, 659, 657, 656, 655, 653,
197 
652, 651, 650, 648, 647, 646, 644, 643, 642, 640, 639, 637, 636, 635, 633, 632,
198 
631, 629, 628, 626, 625, 624, 622, 621, 619, 618, 616, 615, 614, 612, 611, 609,
199 
608, 606, 605, 603, 602, 601, 599, 598, 596, 595, 593, 592, 590, 589, 587, 586,
200 
584, 583, 581, 580, 578, 577, 575, 574, 572, 571, 569, 567, 566, 564, 563, 561,
201 
560, 558, 557, 555, 554, 552, 551, 549, 547, 546, 544, 543, 541, 540, 538, 537,
202 
535, 533, 532, 530, 529, 527, 526, 524, 522, 521, 519, 518, 516, 515, 513, 512,
203 
510, 508, 507, 505, 504, 502, 501, 499, 497, 496, 494, 493, 491, 490, 488, 486,
204 
485, 483, 482, 480, 479, 477, 476, 474, 472, 471, 469, 468, 466, 465, 463, 462,
205 
460, 459, 457, 456, 454, 452, 451, 449, 448, 446, 445, 443, 442, 440, 439, 437,
206 
436, 434, 433, 431, 430, 428, 427, 425, 424, 422, 421, 420, 418, 417, 415, 414,
207 
412, 411, 409, 408, 407, 405, 404, 402, 401, 399, 398, 397, 395, 394, 392, 391,
208 
390, 388, 387, 386, 384, 383, 381, 380, 379, 377, 376, 375, 373, 372, 371, 370,
209 
368, 367, 366, 364, 363, 362, 361, 359, 358, 357, 356, 354, 353, 352, 351, 349,
210 
348, 347, 346, 345, 343, 342, 341, 340, 339, 338, 336, 335, 334, 333, 332, 331,
211 
330, 329, 328, 326, 325, 324, 323, 322, 321, 320, 319, 318, 317, 316, 315, 314,
212 
313, 312, 311, 310, 309, 308, 307, 306, 305, 304, 304, 303, 302, 301, 300, 299,
213 
298, 297, 296, 296, 295, 294, 293, 292, 292, 291, 290, 289, 288, 288, 287, 286,
214 
285, 285, 284, 283, 283, 282, 281, 281, 280, 279, 279, 278, 277, 277, 276, 275,
215 
275, 274, 274, 273, 273, 272, 271, 271, 270, 270, 269, 269, 268, 268, 267, 267,
216 
267, 266, 266, 265, 265, 264, 264, 264, 263, 263, 263, 262, 262, 262, 261, 261,
217 
261, 260, 260, 260, 259, 259, 259, 259, 259, 258, 258, 258, 258, 258, 257, 257,
218 
257, 257, 257, 257, 257, 256, 256, 256, 256, 256, 256, 256, 256, 256, 256, 256,
219 
256, 256, 256, 256, 256, 256, 256, 256, 256, 256, 257, 257, 257, 257, 257, 257,
220 
257, 258, 258, 258, 258, 258, 259, 259, 259, 259, 259, 260, 260, 260, 261, 261,
221 
261, 262, 262, 262, 263, 263, 263, 264, 264, 264, 265, 265, 266, 266, 267, 267,
222 
267, 268, 268, 269, 269, 270, 270, 271, 271, 272, 273, 273, 274, 274, 275, 275,
223 
276, 277, 277, 278, 279, 279, 280, 281, 281, 282, 283, 283, 284, 285, 285, 286,
224 
287, 288, 288, 289, 290, 291, 292, 292, 293, 294, 295, 296, 296, 297, 298, 299,
225 
300, 301, 302, 303, 304, 304, 305, 306, 307, 308, 309, 310, 311, 312, 313, 314,
226 
315, 316, 317, 318, 319, 320, 321, 322, 323, 324, 325, 326, 328, 329, 330, 331,
227 
332, 333, 334, 335, 336, 338, 339, 340, 341, 342, 343, 345, 346, 347, 348, 349,
228 
351, 352, 353, 354, 356, 357, 358, 359, 361, 362, 363, 364, 366, 367, 368, 370,
229 
371, 372, 373, 375, 376, 377, 379, 380, 381, 383, 384, 386, 387, 388, 390, 391,
230 
392, 394, 395, 397, 398, 399, 401, 402, 404, 405, 407, 408, 409, 411, 412, 414,
231 
415, 417, 418, 420, 421, 422, 424, 425, 427, 428, 430, 431, 433, 434, 436, 437,
232 
439, 440, 442, 443, 445, 446, 448, 449, 451, 452, 454, 456, 457, 459, 460, 462,
233 
463, 465, 466, 468, 469, 471, 472, 474, 476, 477, 479, 480, 482, 483, 485, 486,
234 
488, 490, 491, 493, 494, 496, 497, 499, 501, 502, 504, 505, 507, 508, 510, 512,
235 
512, 515, 516, 518, 519, 521, 522, 524, 526, 527, 529, 530, 532, 533, 535, 537,
236 
538, 540, 541, 543, 544, 546, 547, 549, 551, 552, 554, 555, 557, 558, 560, 561,
237 
563, 564, 566, 567, 569, 571, 572, 574, 575, 577, 578, 580, 581, 583, 584, 586,
238 
587, 589, 590, 592, 593, 595, 596, 598, 599, 601, 602, 603, 605, 606, 608, 609,
239 
611, 612, 614, 615, 616, 618, 619, 621, 622, 624, 625, 626, 628, 629, 631, 632,
240 
633, 635, 636, 637, 639, 640, 642, 643, 644, 646, 647, 648, 650, 651, 652, 653,
241 
655, 656, 657, 659, 660, 661, 662, 664, 665, 666, 667, 669, 670, 671, 672, 674,
242 
675, 676, 677, 678, 680, 681, 682, 683, 684, 685, 687, 688, 689, 690, 691, 692,
243 
693, 694, 695, 697, 698, 699, 700, 701, 702, 703, 704, 705, 706, 707, 708, 709,
244 
710, 711, 712, 713, 714, 715, 716, 717, 718, 719, 719, 720, 721, 722, 723, 724,
245 
725, 726, 727, 727, 728, 729, 730, 731, 731, 732, 733, 734, 735, 735, 736, 737,
246 
738, 738, 739, 740, 740, 741, 742, 742, 743, 744, 744, 745, 746, 746, 747, 748,
247 
748, 749, 749, 750, 750, 751, 752, 752, 753, 753, 754, 754, 755, 755, 756, 756,
248 
756, 757, 757, 758, 758, 759, 759, 759, 760, 760, 760, 761, 761, 761, 762, 762,
249 
762, 763, 763, 763, 764, 764, 764, 764, 764, 765, 765, 765, 765, 765, 766, 766,
250 
766, 766, 766, 766, 766, 767, 767, 767, 767, 767, 767, 767, 767, 767, 767, 767,
251 
767, 767, 767, 767, 767, 767, 767, 767, 767, 767, 766, 766, 766, 766, 766, 766,
252 
766, 765, 765, 765, 765, 765, 764, 764, 764, 764, 764, 763, 763, 763, 762, 762,
253 
762, 761, 761, 761, 760, 760, 760, 759, 759, 759, 758, 758, 757, 757, 756, 756,
254 
756, 755, 755, 754, 754, 753, 753, 752, 752, 751, 750, 750, 749, 749, 748, 748,
255 
747, 746, 746, 745, 744, 744, 743, 742, 742, 741, 740, 740, 739, 738, 738, 737,
256 
736, 735, 735, 734, 733, 732, 731, 731, 730, 729, 728, 727, 727, 726, 725, 724,
257 
723, 722, 721, 720, 719, 719, 718, 717, 716, 715, 714, 713, 712, 711, 710, 709,
258 
708, 707, 706, 705, 704, 703, 702, 701, 700, 699, 698, 697, 695, 694, 693, 692,
259 
691, 690, 689, 688, 687, 685, 684, 683, 682, 681, 680, 678, 677, 676, 675, 674,
260 
672, 671, 670, 669, 667, 666, 665, 664, 662, 661, 660, 659, 657, 656, 655, 653,
261 
652, 651, 650, 648, 647, 646, 644, 643, 642, 640, 639, 637, 636, 635, 633, 632,
262 
631, 629, 628, 626, 625, 624, 622, 621, 619, 618, 616, 615, 614, 612, 611, 609,
263 
608, 606, 605, 603, 602, 601, 599, 598, 596, 595, 593, 592, 590, 589, 587, 586,
264 
584, 583, 581, 580, 578, 577, 575, 574, 572, 571, 569, 567, 566, 564, 563, 561,
265 
560, 558, 557, 555, 554, 552, 551, 549, 547, 546, 544, 543, 541, 540, 538, 537,
266 
535, 533, 532, 530, 529, 527, 526, 524, 522, 521, 519, 518, 516, 515, 513, 512,
267 
510, 508, 507, 505, 504, 502, 501, 499, 497, 496, 494, 493, 491, 490, 488, 486,
268 
485, 483, 482, 480, 479, 477, 476, 474, 472, 471, 469, 468, 466, 465, 463, 462,
269 
460, 459, 457, 456, 454, 452, 451, 449, 448, 446, 445, 443, 442, 440, 439, 437,
270 
436, 434, 433, 431, 430, 428, 427, 425, 424, 422, 421, 420, 418, 417, 415, 414,
271 
412, 411, 409, 408, 407, 405, 404, 402, 401, 399, 398, 397, 395, 394, 392, 391,
272 
390, 388, 387, 386, 384, 383, 381, 380, 379, 377, 376, 375, 373, 372, 371, 370,
273 
368, 367, 366, 364, 363, 362, 361, 359, 358, 357, 356, 354, 353, 352, 351, 349,
274 
348, 347, 346, 345, 343, 342, 341, 340, 339, 338, 336, 335, 334, 333, 332, 331,
275 
330, 329, 328, 326, 325, 324, 323, 322, 321, 320, 319, 318, 317, 316, 315, 314,
276 
313, 312, 311, 310, 309, 308, 307, 306, 305, 304, 304, 303, 302, 301, 300, 299,
277 
298, 297, 296, 296, 295, 294, 293, 292, 292, 291, 290, 289, 288, 288, 287, 286,
278 
285, 285, 284, 283, 283, 282, 281, 281, 280, 279, 279, 278, 277, 277, 276, 275,
279 
275, 274, 274, 273, 273, 272, 271, 271, 270, 270, 269, 269, 268, 268, 267, 267,
280 
267, 266, 266, 265, 265, 264, 264, 264, 263, 263, 263, 262, 262, 262, 261, 261,
281 
261, 260, 260, 260, 259, 259, 259, 259, 259, 258, 258, 258, 258, 258, 257, 257,
282 
257, 257, 257, 257, 257, 256, 256, 256, 256, 256, 256, 256, 256, 256, 256, 256,
283 
256, 256, 256, 256, 256, 256, 256, 256, 256, 256, 257, 257, 257, 257, 257, 257,
284 
257, 258, 258, 258, 258, 258, 259, 259, 259, 259, 259, 260, 260, 260, 261, 261,
285 
261, 262, 262, 262, 263, 263, 263, 264, 264, 264, 265, 265, 266, 266, 267, 267,
286 
267, 268, 268, 269, 269, 270, 270, 271, 271, 272, 273, 273, 274, 274, 275, 275,
287 
276, 277, 277, 278, 279, 279, 280, 281, 281, 282, 283, 283, 284, 285, 285, 286,
288 
287, 288, 288, 289, 290, 291, 292, 292, 293, 294, 295, 296, 296, 297, 298, 299,
289 
300, 301, 302, 303, 304, 304, 305, 306, 307, 308, 309, 310, 311, 312, 313, 314,
290 
315, 316, 317, 318, 319, 320, 321, 322, 323, 324, 325, 326, 328, 329, 330, 331,
291 
332, 333, 334, 335, 336, 338, 339, 340, 341, 342, 343, 345, 346, 347, 348, 349,
292 
351, 352, 353, 354, 356, 357, 358, 359, 361, 362, 363, 364, 366, 367, 368, 370,
293 
371, 372, 373, 375, 376, 377, 379, 380, 381, 383, 384, 386, 387, 388, 390, 391,
294 
392, 394, 395, 397, 398, 399, 401, 402, 404, 405, 407, 408, 409, 411, 412, 414,
295 
415, 417, 418, 420, 421, 422, 424, 425, 427, 428, 430, 431, 433, 434, 436, 437,
296 
439, 440, 442, 443, 445, 446, 448, 449, 451, 452, 454, 456, 457, 459, 460, 462,
297 
463, 465, 466, 468, 469, 471, 472, 474, 476, 477, 479, 480, 482, 483, 485, 486,
298 
488, 490, 491, 493, 494, 496, 497, 499, 501, 502, 504, 505, 507, 508, 510, 512);
299 
signal buf1,buf2,buf3,buf4,buf5,buf6,buf7,buf8,buf9,buf10,buf11,buf12,buf13,buf14,buf15,buf16 : std_logic_vector(9 downto 0);
300 
signal ctr : integer range 0 to 2047;
301 
BEGIN
302 
process(clk)
303 
begin
304 
 if rising_edge(clk) then
305 
  if (ctr<1023) then
306 
        buf1 <= std_logic_vector(to_unsigned((sine1(ctr)+sine1(ctr+256)-512),10));
307 
        buf2 <= std_logic_vector(to_unsigned((sine1(ctr)+sine2(ctr+256)-512),10));
308 
        buf3 <= std_logic_vector(to_unsigned((sine1(ctr)+sine1(ctr+512+256)-512),10));
309 
        buf4 <= std_logic_vector(to_unsigned((sine1(ctr)+sine2(ctr+512+256)-512),10));
310 
        buf5 <= std_logic_vector(to_unsigned((sine2(ctr)+sine1(ctr+256)-512),10));
311 
        buf6 <= std_logic_vector(to_unsigned((sine2(ctr)+sine2(ctr+256)-512),10));
312 
        buf7 <= std_logic_vector(to_unsigned((sine2(ctr)+sine1(ctr+512+256)-512),10));
313 
        buf8 <= std_logic_vector(to_unsigned((sine2(ctr)+sine2(ctr+512+256)-512),10));
314 
        buf9 <= std_logic_vector(to_unsigned((sine1(ctr+512)+sine1(ctr+256)-512),10));
315 
        buf10 <= std_logic_vector(to_unsigned((sine1(ctr+512)+sine2(ctr+256)-512),10));
316 
        buf11 <= std_logic_vector(to_unsigned((sine1(ctr+512)+sine1(ctr+512+256)-512),10));
317 
        buf12 <= std_logic_vector(to_unsigned((sine1(ctr+512)+sine2(ctr+512+256)-512),10));
318 
        buf13 <= std_logic_vector(to_unsigned((sine2(ctr+512)+sine1(ctr+256)-512),10));
319 
        buf14 <= std_logic_vector(to_unsigned((sine2(ctr+512)+sine2(ctr+256)-512),10));
320 
        buf15 <= std_logic_vector(to_unsigned((sine2(ctr+512)+sine1(ctr+512+256)-512),10));
321 
        buf16 <= std_logic_vector(to_unsigned((sine2(ctr+512)+sine2(ctr+512+256)-512),10));
322 
        ctr<=ctr+1;
323 
  else
324 
        buf1 <= std_logic_vector(to_unsigned((sine1(ctr)+sine1(ctr+256)-512),10));
325 
        buf2 <= std_logic_vector(to_unsigned((sine1(ctr)+sine2(ctr+256)-512),10));
326 
        buf3 <= std_logic_vector(to_unsigned((sine1(ctr)+sine1(ctr+512+256)-512),10));
327 
        buf4 <= std_logic_vector(to_unsigned((sine1(ctr)+sine2(ctr+512+256)-512),10));
328 
        buf5 <= std_logic_vector(to_unsigned((sine2(ctr)+sine1(ctr+256)-512),10));
329 
        buf6 <= std_logic_vector(to_unsigned((sine2(ctr)+sine2(ctr+256)-512),10));
330 
        buf7 <= std_logic_vector(to_unsigned((sine2(ctr)+sine1(ctr+512+256)-512),10));
331 
        buf8 <= std_logic_vector(to_unsigned((sine2(ctr)+sine2(ctr+512+256)-512),10));
332 
        buf9 <= std_logic_vector(to_unsigned((sine1(ctr+512)+sine1(ctr+256)-512),10));
333 
        buf10 <= std_logic_vector(to_unsigned((sine1(ctr+512)+sine2(ctr+256)-512),10));
334 
        buf11 <= std_logic_vector(to_unsigned((sine1(ctr+512)+sine1(ctr+512+256)-512),10));
335 
        buf12 <= std_logic_vector(to_unsigned((sine1(ctr+512)+sine2(ctr+512+256)-512),10));
336 
        buf13 <= std_logic_vector(to_unsigned((sine2(ctr+512)+sine1(ctr+256)-512),10));
337 
        buf14 <= std_logic_vector(to_unsigned((sine2(ctr+512)+sine2(ctr+256)-512),10));
338 
        buf15 <= std_logic_vector(to_unsigned((sine2(ctr+512)+sine1(ctr+512+256)-512),10));
339 
        buf16 <= std_logic_vector(to_unsigned((sine2(ctr+512)+sine2(ctr+512+256)-512),10));
340 
        ctr<=0;
341 
  end if;
342 
 end if;
343 
 if inp=buf1 then output<="0000";
344 
  elsif inp=buf2 then output<="0001";
345 
  elsif inp=buf3 then output<="0010";
346 
  elsif inp=buf4 then output<="0011";
347 
  elsif inp=buf5 then output<="0100";
348 
  elsif inp=buf6 then output<="0101";
349 
  elsif inp=buf7 then output<="0110";
350 
  elsif inp=buf8 then output<="0111";
351 
  elsif inp=buf9 then output<="1000";
352 
  elsif inp=buf10 then output<="1001";
353 
  elsif inp=buf11 then output<="1010";
354 
  elsif inp=buf12 then output<="1011";
355 
  elsif inp=buf13 then output<="1100";
356 
  elsif inp=buf14 then output<="1101";
357 
  elsif inp=buf15 then output<="1110";
358 
  elsif inp=buf16 then output<="1111";
359 
  else output<="ZZZZ";
360 
 end if;
361 
end process;
362 
END;

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