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Copy pathFFT1024_LUT.v
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FFT1024_LUT.v
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module FFT1024_LUT(n, twiddle);
input [9:0] n;
output reg [31:0] twiddle;
always @ (n)
begin
//$display("LUT address=%d", n);
case(n)
8'd0 : twiddle = { 16'd32767 , 16'd0 }; //i=0 n=256 twiddle= 1 + i 0
8'd1 : twiddle = { 16'd32757 , -16'd804 }; //i=1 n=256 twiddle= 9.996988e-01 + i -2.454123e-02
8'd2 : twiddle = { 16'd32728 , -16'd1608 }; //i=2 n=256 twiddle= 9.987955e-01 + i -4.906767e-02
8'd3 : twiddle = { 16'd32678 , -16'd2410 }; //i=3 n=256 twiddle= 9.972905e-01 + i -7.356456e-02
8'd4 : twiddle = { 16'd32609 , -16'd3212 }; //i=4 n=256 twiddle= 9.951847e-01 + i -9.801714e-02
8'd5 : twiddle = { 16'd32521 , -16'd4011 }; //i=5 n=256 twiddle= 9.924795e-01 + i -1.224107e-01
8'd6 : twiddle = { 16'd32412 , -16'd4808 }; //i=6 n=256 twiddle= 9.891765e-01 + i -1.467305e-01
8'd7 : twiddle = { 16'd32285 , -16'd5602 }; //i=7 n=256 twiddle= 9.852776e-01 + i -1.709619e-01
8'd8 : twiddle = { 16'd32137 , -16'd6393 }; //i=8 n=256 twiddle= 9.807853e-01 + i -1.950903e-01
8'd9 : twiddle = { 16'd31971 , -16'd7179 }; //i=9 n=256 twiddle= 9.757021e-01 + i -2.191012e-01
8'd10 : twiddle = { 16'd31785 , -16'd7962 }; //i=10 n=256 twiddle= 9.700313e-01 + i -2.429802e-01
8'd11 : twiddle = { 16'd31580 , -16'd8739 }; //i=11 n=256 twiddle= 9.637761e-01 + i -2.667128e-01
8'd12 : twiddle = { 16'd31356 , -16'd9512 }; //i=12 n=256 twiddle= 9.569403e-01 + i -2.902847e-01
8'd13 : twiddle = { 16'd31113 , -16'd10278 }; //i=13 n=256 twiddle= 9.495282e-01 + i -3.136817e-01
8'd14 : twiddle = { 16'd30852 , -16'd11039 }; //i=14 n=256 twiddle= 9.415441e-01 + i -3.368899e-01
8'd15 : twiddle = { 16'd30571 , -16'd11793 }; //i=15 n=256 twiddle= 9.329928e-01 + i -3.598950e-01
8'd16 : twiddle = { 16'd30273 , -16'd12539 }; //i=16 n=256 twiddle= 9.238795e-01 + i -3.826834e-01
8'd17 : twiddle = { 16'd29956 , -16'd13279 }; //i=17 n=256 twiddle= 9.142098e-01 + i -4.052413e-01
8'd18 : twiddle = { 16'd29621 , -16'd14010 }; //i=18 n=256 twiddle= 9.039893e-01 + i -4.275551e-01
8'd19 : twiddle = { 16'd29268 , -16'd14732 }; //i=19 n=256 twiddle= 8.932243e-01 + i -4.496113e-01
8'd20 : twiddle = { 16'd28898 , -16'd15446 }; //i=20 n=256 twiddle= 8.819213e-01 + i -4.713967e-01
8'd21 : twiddle = { 16'd28510 , -16'd16151 }; //i=21 n=256 twiddle= 8.700870e-01 + i -4.928982e-01
8'd22 : twiddle = { 16'd28105 , -16'd16846 }; //i=22 n=256 twiddle= 8.577286e-01 + i -5.141027e-01
8'd23 : twiddle = { 16'd27683 , -16'd17530 }; //i=23 n=256 twiddle= 8.448536e-01 + i -5.349976e-01
8'd24 : twiddle = { 16'd27245 , -16'd18204 }; //i=24 n=256 twiddle= 8.314696e-01 + i -5.555702e-01
8'd25 : twiddle = { 16'd26790 , -16'd18868 }; //i=25 n=256 twiddle= 8.175848e-01 + i -5.758082e-01
8'd26 : twiddle = { 16'd26319 , -16'd19519 }; //i=26 n=256 twiddle= 8.032075e-01 + i -5.956993e-01
8'd27 : twiddle = { 16'd25832 , -16'd20159 }; //i=27 n=256 twiddle= 7.883464e-01 + i -6.152316e-01
8'd28 : twiddle = { 16'd25329 , -16'd20787 }; //i=28 n=256 twiddle= 7.730105e-01 + i -6.343933e-01
8'd29 : twiddle = { 16'd24811 , -16'd21403 }; //i=29 n=256 twiddle= 7.572088e-01 + i -6.531728e-01
8'd30 : twiddle = { 16'd24279 , -16'd22005 }; //i=30 n=256 twiddle= 7.409511e-01 + i -6.715590e-01
8'd31 : twiddle = { 16'd23731 , -16'd22594 }; //i=31 n=256 twiddle= 7.242471e-01 + i -6.895405e-01
8'd32 : twiddle = { 16'd23170 , -16'd23170 }; //i=32 n=256 twiddle= 7.071068e-01 + i -7.071068e-01
8'd33 : twiddle = { 16'd22594 , -16'd23731 }; //i=33 n=256 twiddle= 6.895405e-01 + i -7.242471e-01
8'd34 : twiddle = { 16'd22005 , -16'd24279 }; //i=34 n=256 twiddle= 6.715590e-01 + i -7.409511e-01
8'd35 : twiddle = { 16'd21403 , -16'd24811 }; //i=35 n=256 twiddle= 6.531728e-01 + i -7.572088e-01
8'd36 : twiddle = { 16'd20787 , -16'd25329 }; //i=36 n=256 twiddle= 6.343933e-01 + i -7.730105e-01
8'd37 : twiddle = { 16'd20159 , -16'd25832 }; //i=37 n=256 twiddle= 6.152316e-01 + i -7.883464e-01
8'd38 : twiddle = { 16'd19519 , -16'd26319 }; //i=38 n=256 twiddle= 5.956993e-01 + i -8.032075e-01
8'd39 : twiddle = { 16'd18868 , -16'd26790 }; //i=39 n=256 twiddle= 5.758082e-01 + i -8.175848e-01
8'd40 : twiddle = { 16'd18204 , -16'd27245 }; //i=40 n=256 twiddle= 5.555702e-01 + i -8.314696e-01
8'd41 : twiddle = { 16'd17530 , -16'd27683 }; //i=41 n=256 twiddle= 5.349976e-01 + i -8.448536e-01
8'd42 : twiddle = { 16'd16846 , -16'd28105 }; //i=42 n=256 twiddle= 5.141027e-01 + i -8.577286e-01
8'd43 : twiddle = { 16'd16151 , -16'd28510 }; //i=43 n=256 twiddle= 4.928982e-01 + i -8.700870e-01
8'd44 : twiddle = { 16'd15446 , -16'd28898 }; //i=44 n=256 twiddle= 4.713967e-01 + i -8.819213e-01
8'd45 : twiddle = { 16'd14732 , -16'd29268 }; //i=45 n=256 twiddle= 4.496113e-01 + i -8.932243e-01
8'd46 : twiddle = { 16'd14010 , -16'd29621 }; //i=46 n=256 twiddle= 4.275551e-01 + i -9.039893e-01
8'd47 : twiddle = { 16'd13279 , -16'd29956 }; //i=47 n=256 twiddle= 4.052413e-01 + i -9.142098e-01
8'd48 : twiddle = { 16'd12539 , -16'd30273 }; //i=48 n=256 twiddle= 3.826834e-01 + i -9.238795e-01
8'd49 : twiddle = { 16'd11793 , -16'd30571 }; //i=49 n=256 twiddle= 3.598950e-01 + i -9.329928e-01
8'd50 : twiddle = { 16'd11039 , -16'd30852 }; //i=50 n=256 twiddle= 3.368899e-01 + i -9.415441e-01
8'd51 : twiddle = { 16'd10278 , -16'd31113 }; //i=51 n=256 twiddle= 3.136817e-01 + i -9.495282e-01
8'd52 : twiddle = { 16'd9512 , -16'd31356 }; //i=52 n=256 twiddle= 2.902847e-01 + i -9.569403e-01
8'd53 : twiddle = { 16'd8739 , -16'd31580 }; //i=53 n=256 twiddle= 2.667128e-01 + i -9.637761e-01
8'd54 : twiddle = { 16'd7962 , -16'd31785 }; //i=54 n=256 twiddle= 2.429802e-01 + i -9.700313e-01
8'd55 : twiddle = { 16'd7179 , -16'd31971 }; //i=55 n=256 twiddle= 2.191012e-01 + i -9.757021e-01
8'd56 : twiddle = { 16'd6393 , -16'd32137 }; //i=56 n=256 twiddle= 1.950903e-01 + i -9.807853e-01
8'd57 : twiddle = { 16'd5602 , -16'd32285 }; //i=57 n=256 twiddle= 1.709619e-01 + i -9.852776e-01
8'd58 : twiddle = { 16'd4808 , -16'd32412 }; //i=58 n=256 twiddle= 1.467305e-01 + i -9.891765e-01
8'd59 : twiddle = { 16'd4011 , -16'd32521 }; //i=59 n=256 twiddle= 1.224107e-01 + i -9.924795e-01
8'd60 : twiddle = { 16'd3212 , -16'd32609 }; //i=60 n=256 twiddle= 9.801714e-02 + i -9.951847e-01
8'd61 : twiddle = { 16'd2410 , -16'd32678 }; //i=61 n=256 twiddle= 7.356456e-02 + i -9.972905e-01
8'd62 : twiddle = { 16'd1608 , -16'd32728 }; //i=62 n=256 twiddle= 4.906767e-02 + i -9.987955e-01
8'd63 : twiddle = { 16'd804 , -16'd32757 }; //i=63 n=256 twiddle= 2.454123e-02 + i -9.996988e-01
8'd64 : twiddle = { 16'd0 , -16'd32767 }; //i=64 n=256 twiddle= 6.123234e-17 + i -1
8'd65 : twiddle = {-16'd804 , -16'd32757 }; //i=65 n=256 twiddle= -2.454123e-02 + i -9.996988e-01
8'd66 : twiddle = {-16'd1608 , -16'd32728 }; //i=66 n=256 twiddle= -4.906767e-02 + i -9.987955e-01
8'd67 : twiddle = {-16'd2410 , -16'd32678 }; //i=67 n=256 twiddle= -7.356456e-02 + i -9.972905e-01
8'd68 : twiddle = {-16'd3212 , -16'd32609 }; //i=68 n=256 twiddle= -9.801714e-02 + i -9.951847e-01
8'd69 : twiddle = {-16'd4011 , -16'd32521 }; //i=69 n=256 twiddle= -1.224107e-01 + i -9.924795e-01
8'd70 : twiddle = {-16'd4808 , -16'd32412 }; //i=70 n=256 twiddle= -1.467305e-01 + i -9.891765e-01
8'd71 : twiddle = {-16'd5602 , -16'd32285 }; //i=71 n=256 twiddle= -1.709619e-01 + i -9.852776e-01
8'd72 : twiddle = {-16'd6393 , -16'd32137 }; //i=72 n=256 twiddle= -1.950903e-01 + i -9.807853e-01
8'd73 : twiddle = {-16'd7179 , -16'd31971 }; //i=73 n=256 twiddle= -2.191012e-01 + i -9.757021e-01
8'd74 : twiddle = {-16'd7962 , -16'd31785 }; //i=74 n=256 twiddle= -2.429802e-01 + i -9.700313e-01
8'd75 : twiddle = {-16'd8739 , -16'd31580 }; //i=75 n=256 twiddle= -2.667128e-01 + i -9.637761e-01
8'd76 : twiddle = {-16'd9512 , -16'd31356 }; //i=76 n=256 twiddle= -2.902847e-01 + i -9.569403e-01
8'd77 : twiddle = {-16'd10278 , -16'd31113 }; //i=77 n=256 twiddle= -3.136817e-01 + i -9.495282e-01
8'd78 : twiddle = {-16'd11039 , -16'd30852 }; //i=78 n=256 twiddle= -3.368899e-01 + i -9.415441e-01
8'd79 : twiddle = {-16'd11793 , -16'd30571 }; //i=79 n=256 twiddle= -3.598950e-01 + i -9.329928e-01
8'd80 : twiddle = {-16'd12539 , -16'd30273 }; //i=80 n=256 twiddle= -3.826834e-01 + i -9.238795e-01
8'd81 : twiddle = {-16'd13279 , -16'd29956 }; //i=81 n=256 twiddle= -4.052413e-01 + i -9.142098e-01
8'd82 : twiddle = {-16'd14010 , -16'd29621 }; //i=82 n=256 twiddle= -4.275551e-01 + i -9.039893e-01
8'd83 : twiddle = {-16'd14732 , -16'd29268 }; //i=83 n=256 twiddle= -4.496113e-01 + i -8.932243e-01
8'd84 : twiddle = {-16'd15446 , -16'd28898 }; //i=84 n=256 twiddle= -4.713967e-01 + i -8.819213e-01
8'd85 : twiddle = {-16'd16151 , -16'd28510 }; //i=85 n=256 twiddle= -4.928982e-01 + i -8.700870e-01
8'd86 : twiddle = {-16'd16846 , -16'd28105 }; //i=86 n=256 twiddle= -5.141027e-01 + i -8.577286e-01
8'd87 : twiddle = {-16'd17530 , -16'd27683 }; //i=87 n=256 twiddle= -5.349976e-01 + i -8.448536e-01
8'd88 : twiddle = {-16'd18204 , -16'd27245 }; //i=88 n=256 twiddle= -5.555702e-01 + i -8.314696e-01
8'd89 : twiddle = {-16'd18868 , -16'd26790 }; //i=89 n=256 twiddle= -5.758082e-01 + i -8.175848e-01
8'd90 : twiddle = {-16'd19519 , -16'd26319 }; //i=90 n=256 twiddle= -5.956993e-01 + i -8.032075e-01
8'd91 : twiddle = {-16'd20159 , -16'd25832 }; //i=91 n=256 twiddle= -6.152316e-01 + i -7.883464e-01
8'd92 : twiddle = {-16'd20787 , -16'd25329 }; //i=92 n=256 twiddle= -6.343933e-01 + i -7.730105e-01
8'd93 : twiddle = {-16'd21403 , -16'd24811 }; //i=93 n=256 twiddle= -6.531728e-01 + i -7.572088e-01
8'd94 : twiddle = {-16'd22005 , -16'd24279 }; //i=94 n=256 twiddle= -6.715590e-01 + i -7.409511e-01
8'd95 : twiddle = {-16'd22594 , -16'd23731 }; //i=95 n=256 twiddle= -6.895405e-01 + i -7.242471e-01
8'd96 : twiddle = {-16'd23170 , -16'd23170 }; //i=96 n=256 twiddle= -7.071068e-01 + i -7.071068e-01
8'd97 : twiddle = {-16'd23731 , -16'd22594 }; //i=97 n=256 twiddle= -7.242471e-01 + i -6.895405e-01
8'd98 : twiddle = {-16'd24279 , -16'd22005 }; //i=98 n=256 twiddle= -7.409511e-01 + i -6.715590e-01
8'd99 : twiddle = {-16'd24811 , -16'd21403 }; //i=99 n=256 twiddle= -7.572088e-01 + i -6.531728e-01
8'd100: twiddle = {-16'd25329 , -16'd20787 }; //i=100 n=256 twiddle= -7.730105e-01 + i -6.343933e-01
8'd101: twiddle = {-16'd25832 , -16'd20159 }; //i=101 n=256 twiddle= -7.883464e-01 + i -6.152316e-01
8'd102: twiddle = {-16'd26319 , -16'd19519 }; //i=102 n=256 twiddle= -8.032075e-01 + i -5.956993e-01
8'd103: twiddle = {-16'd26790 , -16'd18868 }; //i=103 n=256 twiddle= -8.175848e-01 + i -5.758082e-01
8'd104: twiddle = {-16'd27245 , -16'd18204 }; //i=104 n=256 twiddle= -8.314696e-01 + i -5.555702e-01
8'd105: twiddle = {-16'd27683 , -16'd17530 }; //i=105 n=256 twiddle= -8.448536e-01 + i -5.349976e-01
8'd106: twiddle = {-16'd28105 , -16'd16846 }; //i=106 n=256 twiddle= -8.577286e-01 + i -5.141027e-01
8'd107: twiddle = {-16'd28510 , -16'd16151 }; //i=107 n=256 twiddle= -8.700870e-01 + i -4.928982e-01
8'd108: twiddle = {-16'd28898 , -16'd15446 }; //i=108 n=256 twiddle= -8.819213e-01 + i -4.713967e-01
8'd109: twiddle = {-16'd29268 , -16'd14732 }; //i=109 n=256 twiddle= -8.932243e-01 + i -4.496113e-01
8'd110: twiddle = {-16'd29621 , -16'd14010 }; //i=110 n=256 twiddle= -9.039893e-01 + i -4.275551e-01
8'd111: twiddle = {-16'd29956 , -16'd13279 }; //i=111 n=256 twiddle= -9.142098e-01 + i -4.052413e-01
8'd112: twiddle = {-16'd30273 , -16'd12539 }; //i=112 n=256 twiddle= -9.238795e-01 + i -3.826834e-01
8'd113: twiddle = {-16'd30571 , -16'd11793 }; //i=113 n=256 twiddle= -9.329928e-01 + i -3.598950e-01
8'd114: twiddle = {-16'd30852 , -16'd11039 }; //i=114 n=256 twiddle= -9.415441e-01 + i -3.368899e-01
8'd115: twiddle = {-16'd31113 , -16'd10278 }; //i=115 n=256 twiddle= -9.495282e-01 + i -3.136817e-01
8'd116: twiddle = {-16'd31356 , -16'd9512 }; //i=116 n=256 twiddle= -9.569403e-01 + i -2.902847e-01
8'd117: twiddle = {-16'd31580 , -16'd8739 }; //i=117 n=256 twiddle= -9.637761e-01 + i -2.667128e-01
8'd118: twiddle = {-16'd31785 , -16'd7962 }; //i=118 n=256 twiddle= -9.700313e-01 + i -2.429802e-01
8'd119: twiddle = {-16'd31971 , -16'd7179 }; //i=119 n=256 twiddle= -9.757021e-01 + i -2.191012e-01
8'd120: twiddle = {-16'd32137 , -16'd6393 }; //i=120 n=256 twiddle= -9.807853e-01 + i -1.950903e-01
8'd121: twiddle = {-16'd32285 , -16'd5602 }; //i=121 n=256 twiddle= -9.852776e-01 + i -1.709619e-01
8'd122: twiddle = {-16'd32412 , -16'd4808 }; //i=122 n=256 twiddle= -9.891765e-01 + i -1.467305e-01
8'd123: twiddle = {-16'd32521 , -16'd4011 }; //i=123 n=256 twiddle= -9.924795e-01 + i -1.224107e-01
8'd124: twiddle = {-16'd32609 , -16'd3212 }; //i=124 n=256 twiddle= -9.951847e-01 + i -9.801714e-02
8'd125: twiddle = {-16'd32678 , -16'd2410 }; //i=125 n=256 twiddle= -9.972905e-01 + i -7.356456e-02
8'd126: twiddle = {-16'd32728 , -16'd1608 }; //i=126 n=256 twiddle= -9.987955e-01 + i -4.906767e-02
8'd127: twiddle = {-16'd32757 , -16'd804 }; //i=127 n=256 twiddle= -9.996988e-01 + i -2.454123e-02
default: twiddle = 'bX;
endcase
end
endmodule