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[备份].整型的1024倍正余弦查找表.[C]

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发表于 2010/6/26 20:19:28 阅读（1865）

01 // This is a integer SIN lookup table
02 // Values are (SIN(x) * 1024)
03 shortint_sin_array[360] = {
04 0, 17, 35, 53, 71, 89, 107, 124, 142, 160,
05 177, 195, 212, 230, 247, 265, 282, 299, 316, 333,
06 350, 366, 383, 400, 416, 432, 448, 464, 480, 496,
07 512, 527, 542, 557, 572, 587, 601, 616, 630, 644,
08 658, 671, 685, 698, 711, 724, 736, 748, 760, 772,
09 784, 795, 806, 817, 828, 838, 848, 858, 868, 877,
10 886, 895, 904, 912, 920, 928, 935, 942, 949, 955,
11 962, 968, 973, 979, 984, 989, 993, 997, 1001, 1005,
12 1008, 1011, 1014, 1016, 1018, 1020, 1021, 1022, 1023, 1023,
13 1024, 1023, 1023, 1022, 1021, 1020, 1018, 1016, 1014, 1011,
14 1008, 1005, 1001, 997, 993, 989, 984, 979, 973, 968,
15 962, 955, 949, 942, 935, 928, 920, 912, 904, 895,
16 886, 877, 868, 858, 848, 838, 828, 817, 806, 795,
17 784, 772, 760, 748, 736, 724, 711, 698, 685, 671,
18 658, 644, 630, 616, 601, 587, 572, 557, 542, 527,
19 512, 496, 480, 464, 448, 432, 416, 400, 383, 366,
20 350, 333, 316, 299, 282, 265, 247, 230, 212, 195,
21 177, 160, 142, 124, 107, 89, 71, 53, 35, 17,
22 0, -18, -36, -54, -72, -90, -108, -125, -143, -161,
23 -178, -196, -213, -231, -248, -266, -283, -300, -317, -334,
24 -351, -367, -384, -401, -417, -433, -449, -465, -481, -497,
25 -512, -528, -543, -558, -573, -588, -602, -617, -631, -645,
26 -659, -672, -686, -699, -712, -725, -737, -749, -761, -773,
27 -785, -796, -807, -818, -829, -839, -849, -859, -869, -878,
28 -887, -896, -905, -913, -921, -929, -936, -943, -950, -956,
29 -963, -969, -974, -980, -985, -990, -994, -998, -1002, -1006,
30 -1009, -1012, -1015, -1017, -1019, -1021, -1022, -1023, -1024, -1024,
31 -1024, -1024, -1024, -1023, -1022, -1021, -1019, -1017, -1015, -1012,
32 -1009, -1006, -1002, -998, -994, -990, -985, -980, -974, -969,
33 -963, -956, -950, -943, -936, -929, -921, -913, -905, -896,
34 -887, -878, -869, -859, -849, -839, -829, -818, -807, -796,
35 -785, -773, -761, -749, -737, -725, -712, -699, -686, -672,
36 -659, -645, -631, -617, -602, -588, -573, -558, -543, -528,
37 -512, -497, -481, -465, -449, -433, -417, -401, -384, -367,
38 -351, -334, -317, -300, -283, -266, -248, -231, -213, -196,
39 -178, -161, -143, -125, -108, -90, -72, -54, -36, -18
40 };
41
42
43 // This is a integer COS lookup table
44 // Values are (COS(x) * 1024)
45 shortint_cos_array[360] = {
46 1024, 1023, 1023, 1022, 1021, 1020, 1018, 1016, 1014, 1011,
47 1008, 1005, 1001, 997, 993, 989, 984, 979, 973, 968,
48 962, 955, 949, 942, 935, 928, 920, 912, 904, 895,
49 886, 877, 868, 858, 848, 838, 828, 817, 806, 795,
50 784, 772, 760, 748, 736, 724, 711, 698, 685, 671,
51 658, 644, 630, 616, 601, 587, 572, 557, 542, 527,
52 512, 496, 480, 464, 448, 432, 416, 400, 383, 366,
53 350, 333, 316, 299, 282, 265, 247, 230, 212, 195,
54 177, 160, 142, 124, 107, 89, 71, 53, 35, 17,
55 0, -18, -36, -54, -72, -90, -108, -125, -143, -161,
56 -178, -196, -213, -231, -248, -266, -283, -300, -317, -334,
57 -351, -367, -384, -401, -417, -433, -449, -465, -481, -497,
58 -512, -528, -543, -558, -573, -588, -602, -617, -631, -645,
59 -659, -672, -686, -699, -712, -725, -737, -749, -761, -773,
60 -785, -796, -807, -818, -829, -839, -849, -859, -869, -878,
61 -887, -896, -905, -913, -921, -929, -936, -943, -950, -956,
62 -963, -969, -974, -980, -985, -990, -994, -998, -1002, -1006,
63 -1009, -1012, -1015, -1017, -1019, -1021, -1022, -1023, -1024, -1024,
64 -1024, -1024, -1024, -1023, -1022, -1021, -1019, -1017, -1015, -1012,
65 -1009, -1006, -1002, -998, -994, -990, -985, -980, -974, -969,
66 -963, -956, -950, -943, -936, -929, -921, -913, -905, -896,
67 -887, -878, -869, -859, -849, -839, -829, -818, -807, -796,
68 -785, -773, -761, -749, -737, -725, -712, -699, -686, -672,
69 -659, -645, -631, -617, -602, -588, -573, -558, -543, -528,
70 -512, -497, -481, -465, -449, -433, -417, -401, -384, -367,
71 -351, -334, -317, -300, -283, -266, -248, -231, -213, -196,
72 -178, -161, -143, -125, -108, -90, -72, -54, -36, -18,
73 -1, 17, 35, 53, 71, 89, 107, 124, 142, 160,
74 177, 195, 212, 230, 247, 265, 282, 299, 316, 333,
75 350, 366, 383, 400, 416, 432, 448, 464, 480, 496,
76 512, 527, 542, 557, 572, 587, 601, 616, 630, 644,
77 658, 671, 685, 698, 711, 724, 736, 748, 760, 772,
78 784, 795, 806, 817, 828, 838, 848, 858, 868, 877,
79 886, 895, 904, 912, 920, 928, 935, 942, 949, 955,
80 962, 968, 973, 979, 984, 989, 993, 997, 1001, 1005,
81 1008, 1011, 1014, 1016, 1018, 1020, 1021, 1022, 1023, 1023
82 };

参考

1VGA Controller and Nios II Processor Reference Design

..\StratixII_2S60\software\Nios_II_VGA_Reference_Application_2S60\vga_example.h

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