[2115] | 1 | // This file is copyright 2013 by Rice University and was ported from the |
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| 2 | // original WARP OFDM Reference Design. It is distributed under the WARP license: |
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| 3 | // http://warpproject.org/license |
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| 4 | |
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| 5 | |
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[2088] | 6 | //************************************************************** |
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| 7 | // File: unpack_m2n.v |
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| 8 | // Author: Yang Sun (ysun@rice.edu) |
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| 9 | // Birth: $ 1/15/07 |
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| 10 | // Des: unpack from M bit to N bit, M > N |
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| 11 | // History: $ 1/15/07, Init coding |
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| 12 | // $ 1/21/07, K = 7 |
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| 13 | // $ 3/23, Fixed a naming problem for sysgen |
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| 14 | // Can not use VHDL reserved key world |
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| 15 | // $ 12/1/07: Updated |
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| 16 | //************************************************************** |
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| 17 | |
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| 18 | module unpack_m2n ( |
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| 19 | clk , // I, clock |
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| 20 | nrst , // I, n reset |
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| 21 | start , // I, start pulse |
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| 22 | din , // I, data input |
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| 23 | vin , // I, valid input |
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| 24 | dout , // O, data output |
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| 25 | vout , // O, valid output |
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| 26 | remain , // I, remain |
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| 27 | last , // I, last data |
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[2184] | 28 | done , // O, done |
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| 29 | early_trace |
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[2088] | 30 | ) ; |
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| 31 | |
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[2184] | 32 | parameter BITM = 48 ; |
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| 33 | parameter BITM_EARLY = 24 ; |
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[2088] | 34 | parameter BITN = 8 ; |
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[2184] | 35 | parameter LW = 7 ; |
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[2088] | 36 | |
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| 37 | input clk ; |
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| 38 | input nrst ; |
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| 39 | input start ; |
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| 40 | input [BITM-1 :0] din ; |
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| 41 | input vin ; |
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| 42 | input [LW -1:0] remain ; |
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| 43 | input last ; |
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[2184] | 44 | input early_trace; |
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[2088] | 45 | |
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| 46 | output [BITN-1 :0] dout ; |
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| 47 | output vout ; |
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| 48 | output done ; |
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| 49 | |
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| 50 | //================================================ |
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| 51 | //Internal signal |
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| 52 | //================================================ |
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| 53 | reg [BITM + BITN -1 :0] sreg ; |
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| 54 | wire [BITM + BITN -1 :0] sreg_next ; |
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[2115] | 55 | reg [LW -1 : 0] cnt = 0; |
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[2088] | 56 | wire rd ; |
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| 57 | wire [BITN-1 :0] data ; |
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| 58 | wire [BITM + BITN -1 :0] tmp ; |
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| 59 | wire [BITM + BITN -1 :0] tmp2 ; |
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| 60 | wire [LW -1 : 0] shift ; |
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| 61 | reg last_i ; |
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| 62 | reg last_byte_s0 ; |
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| 63 | wire last_byte ; |
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| 64 | |
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| 65 | //================================================ |
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| 66 | // Main RTL code |
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| 67 | //================================================ |
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| 68 | assign dout = data ; |
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| 69 | assign vout = rd ; |
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| 70 | |
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[2128] | 71 | always @ (posedge clk) |
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[2088] | 72 | if (~nrst) |
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| 73 | cnt <= 0 ; |
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| 74 | else if (start) |
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| 75 | cnt <= 0 ; |
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[2184] | 76 | else if (vin & early_trace) |
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[2088] | 77 | begin |
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[2184] | 78 | cnt <= cnt + BITM_EARLY ; |
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| 79 | end |
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| 80 | else if (vin)// & ~early_trace) |
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| 81 | begin |
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[2088] | 82 | if (~last) |
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| 83 | cnt <= cnt + BITM ; |
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| 84 | else |
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| 85 | cnt <= cnt + remain ; |
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| 86 | end |
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| 87 | else if (rd) |
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| 88 | cnt <= cnt - BITN ; |
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| 89 | |
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| 90 | assign rd = cnt >= BITN ; |
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| 91 | assign data = sreg [BITM + BITN -1 : BITM] ; |
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| 92 | assign tmp = {{BITM{1'b0}}, din} ; |
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| 93 | assign shift = BITN - cnt ; |
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| 94 | assign tmp2 = (tmp << shift) | sreg ; |
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| 95 | assign sreg_next = vin ? tmp2 : rd ? {sreg[BITM -1 : 0], {BITN{1'b0}}} : sreg ; |
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| 96 | |
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[2128] | 97 | always @ (posedge clk) |
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[2088] | 98 | if (~nrst) |
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| 99 | sreg <= 0 ; |
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| 100 | else if (start) |
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| 101 | sreg <= 0 ; |
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| 102 | else |
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| 103 | sreg <= sreg_next ; |
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| 104 | |
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[2128] | 105 | always @ (posedge clk) |
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[2088] | 106 | if (~nrst) |
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| 107 | last_i <= 1'b0 ; |
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| 108 | else if (start) |
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| 109 | last_i <= 1'b0 ; |
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| 110 | else if (vin & last) |
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| 111 | last_i <= 1'b1 ; |
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| 112 | |
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| 113 | assign last_byte = last_i && cnt < BITN ; |
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| 114 | always @ (posedge clk) |
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| 115 | last_byte_s0 <= last_byte ; |
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| 116 | |
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| 117 | assign done = ~last_byte_s0 & last_byte ; |
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| 118 | |
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| 119 | endmodule |
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| 120 | |
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| 121 | |
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| 122 | //************************************************************** |
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| 123 | // File: viterbi_core |
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| 124 | // Author: Yang Sun (ysun@rice.edu) |
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| 125 | // Birth: $ 1/14/07 |
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| 126 | // Des: The top level of viterbi decoder |
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| 127 | // Take 4 bit soft value is [-8 : +7] |
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| 128 | // K = 3. g0 = 7, g1 = 5 |
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| 129 | // K = 5, g0 (A) = 1 + x + x^2 + x^4, g1 (B) = 1 + x^3 + x^4 |
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| 130 | // K = 7, g0 (A) = 1 + x^2 + x^3 + x^4 + x^5 |
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| 131 | // g1 (B) = 1 + x + x^2 + x^3 + x^6 |
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| 132 | // History: $ 1/14/07, Init coding, K = 3 |
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| 133 | // $ 1/22/07, K = 5 |
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| 134 | // $ 1/26/07, Updated |
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| 135 | // $ 1/27/07, Change to LLR domain |
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| 136 | // $ 2/18/07, Supported K = 7 |
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| 137 | // $ 2/23/07, Added pipeline to max_metric |
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| 138 | // $ 12/1/07, Updated |
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| 139 | //************************************************************** |
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| 140 | //`define ZERO_TERM |
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| 141 | |
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| 142 | module viterbi_core ( |
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| 143 | clk , // I, clock |
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| 144 | nrst , // I, n reset |
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| 145 | packet_start, // I, packet start pulse |
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| 146 | zero_tail , // I, the code is zero terminated |
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| 147 | dv_in , // I, data valid input |
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| 148 | llr0 , // I, LLR 2nd |
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| 149 | llr1 , // I, LLR 1st |
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| 150 | packet_end , // I, packet end pulse |
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| 151 | dv_out , // O, data valid out |
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| 152 | dout , // O, data out |
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| 153 | done , // O, done pulse |
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| 154 | remain, // O, remain data cnt |
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[4394] | 155 | early_trace1, |
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| 156 | early_trace2 |
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[2088] | 157 | ) ; |
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[4394] | 158 | |
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| 159 | input early_trace1; |
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| 160 | input early_trace2; |
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| 161 | |
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[2088] | 162 | parameter SW = 4 ; // soft input precision |
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| 163 | parameter M = 7 ; // metric width |
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| 164 | |
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| 165 | parameter R = 48 ; // reliable trace |
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| 166 | parameter C = 40 ; // unreliable trace |
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| 167 | parameter L = 88 ; // total trace depth |
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| 168 | parameter LW = 7 ; // L width |
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| 169 | |
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[4394] | 170 | parameter R_EARLY1 = 24; //Early total trace depth |
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| 171 | parameter C_EARLY1 = 0; //Early unreliable trace |
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| 172 | parameter L_EARLY1 = 24; //Early reliable trace trace |
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[2184] | 173 | |
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[4394] | 174 | parameter R_EARLY2 = 48; //Early total trace depth |
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| 175 | parameter C_EARLY2 = 0; //Early unreliable trace |
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| 176 | parameter L_EARLY2 = 48; //Early reliable trace trace |
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| 177 | |
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[2088] | 178 | parameter K = 7 ; // constraint length |
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| 179 | parameter N = 64 ; // number of states = 2^(K-1) |
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| 180 | parameter TR = 128 ; // trace buffer |
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| 181 | parameter TRW = 7 ; // trace |
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| 182 | |
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| 183 | input clk ; // system clock |
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| 184 | input nrst ; // active low reset |
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| 185 | input packet_start ; // start of packet pulse |
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| 186 | input zero_tail ; // 1 = the code is terminated with 0, 0 = no termination |
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| 187 | input packet_end ; // end of packet pulse |
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| 188 | input dv_in ; // data valid input |
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| 189 | input [SW -1:0] llr1 ; // LLR soft value for bit1, LLR = log(Pr(ci=0/ri)/Pr(ci=1/ri)) |
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| 190 | input [SW -1:0] llr0 ; // LLR soft value for bit0, LLR = log(Pr(ci=0/ri)/Pr(ci=1/ri)) |
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| 191 | |
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| 192 | output done ; |
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| 193 | output [LW -1:0] remain ; |
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| 194 | output dv_out ; |
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| 195 | output [R-1:0] dout ; |
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| 196 | |
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| 197 | //====================================== |
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| 198 | //Internal signal |
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| 199 | //====================================== |
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| 200 | wire [SW:0] branch_00 ; |
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| 201 | wire [SW:0] branch_01 ; |
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| 202 | wire [SW:0] branch_10 ; |
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| 203 | wire [SW:0] branch_11 ; |
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| 204 | |
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| 205 | wire [SW:0] branch_A_0 ; |
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| 206 | wire [SW:0] branch_B_0 ; |
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| 207 | wire [SW:0] branch_A_1 ; |
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| 208 | wire [SW:0] branch_B_1 ; |
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| 209 | wire [SW:0] branch_A_2 ; |
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| 210 | wire [SW:0] branch_B_2 ; |
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| 211 | wire [SW:0] branch_A_3 ; |
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| 212 | wire [SW:0] branch_B_3 ; |
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| 213 | wire [SW:0] branch_A_4 ; |
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| 214 | wire [SW:0] branch_B_4 ; |
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| 215 | wire [SW:0] branch_A_5 ; |
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| 216 | wire [SW:0] branch_B_5 ; |
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| 217 | wire [SW:0] branch_A_6 ; |
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| 218 | wire [SW:0] branch_B_6 ; |
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| 219 | wire [SW:0] branch_A_7 ; |
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| 220 | wire [SW:0] branch_B_7 ; |
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| 221 | wire [SW:0] branch_A_8 ; |
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| 222 | wire [SW:0] branch_B_8 ; |
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| 223 | wire [SW:0] branch_A_9 ; |
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| 224 | wire [SW:0] branch_B_9 ; |
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| 225 | wire [SW:0] branch_A_10 ; |
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| 226 | wire [SW:0] branch_B_10 ; |
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| 227 | wire [SW:0] branch_A_11 ; |
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| 228 | wire [SW:0] branch_B_11 ; |
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| 229 | wire [SW:0] branch_A_12 ; |
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| 230 | wire [SW:0] branch_B_12 ; |
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| 231 | wire [SW:0] branch_A_13 ; |
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| 232 | wire [SW:0] branch_B_13 ; |
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| 233 | wire [SW:0] branch_A_14 ; |
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| 234 | wire [SW:0] branch_B_14 ; |
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| 235 | wire [SW:0] branch_A_15 ; |
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| 236 | wire [SW:0] branch_B_15 ; |
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| 237 | wire [SW:0] branch_A_16 ; |
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| 238 | wire [SW:0] branch_B_16 ; |
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| 239 | wire [SW:0] branch_A_17; |
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| 240 | wire [SW:0] branch_B_17; |
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| 241 | wire [SW:0] branch_A_18; |
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| 242 | wire [SW:0] branch_B_18; |
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| 243 | wire [SW:0] branch_A_19; |
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| 244 | wire [SW:0] branch_B_19; |
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| 245 | wire [SW:0] branch_A_20; |
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| 246 | wire [SW:0] branch_B_20; |
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| 247 | wire [SW:0] branch_A_21; |
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| 248 | wire [SW:0] branch_B_21; |
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| 249 | wire [SW:0] branch_A_22; |
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| 250 | wire [SW:0] branch_B_22; |
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| 251 | wire [SW:0] branch_A_23; |
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| 252 | wire [SW:0] branch_B_23; |
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| 253 | wire [SW:0] branch_A_24; |
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| 254 | wire [SW:0] branch_B_24; |
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| 255 | wire [SW:0] branch_A_25; |
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| 256 | wire [SW:0] branch_B_25; |
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| 257 | wire [SW:0] branch_A_26 ; |
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| 258 | wire [SW:0] branch_B_26 ; |
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| 259 | wire [SW:0] branch_A_27 ; |
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| 260 | wire [SW:0] branch_B_27 ; |
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| 261 | wire [SW:0] branch_A_28 ; |
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| 262 | wire [SW:0] branch_B_28 ; |
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| 263 | wire [SW:0] branch_A_29 ; |
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| 264 | wire [SW:0] branch_B_29 ; |
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| 265 | wire [SW:0] branch_A_30 ; |
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| 266 | wire [SW:0] branch_B_30 ; |
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| 267 | wire [SW:0] branch_A_31 ; |
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| 268 | wire [SW:0] branch_B_31 ; |
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| 269 | wire [SW:0] branch_A_32; |
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| 270 | wire [SW:0] branch_B_32; |
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| 271 | wire [SW:0] branch_A_33; |
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| 272 | wire [SW:0] branch_B_33; |
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| 273 | wire [SW:0] branch_A_34; |
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| 274 | wire [SW:0] branch_B_34; |
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| 275 | wire [SW:0] branch_A_35; |
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| 276 | wire [SW:0] branch_B_35; |
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| 277 | wire [SW:0] branch_A_36; |
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| 278 | wire [SW:0] branch_B_36; |
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| 279 | wire [SW:0] branch_A_37; |
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| 280 | wire [SW:0] branch_B_37; |
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| 281 | wire [SW:0] branch_A_38; |
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| 282 | wire [SW:0] branch_B_38; |
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| 283 | wire [SW:0] branch_A_39; |
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| 284 | wire [SW:0] branch_B_39; |
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| 285 | wire [SW:0] branch_A_40; |
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| 286 | wire [SW:0] branch_B_40; |
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| 287 | wire [SW:0] branch_A_41; |
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| 288 | wire [SW:0] branch_B_41; |
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| 289 | wire [SW:0] branch_A_42 ; |
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| 290 | wire [SW:0] branch_B_42 ; |
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| 291 | wire [SW:0] branch_A_43 ; |
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| 292 | wire [SW:0] branch_B_43 ; |
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| 293 | wire [SW:0] branch_A_44 ; |
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| 294 | wire [SW:0] branch_B_44 ; |
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| 295 | wire [SW:0] branch_A_45 ; |
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| 296 | wire [SW:0] branch_B_45 ; |
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| 297 | wire [SW:0] branch_A_46 ; |
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| 298 | wire [SW:0] branch_B_46 ; |
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| 299 | wire [SW:0] branch_A_47 ; |
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| 300 | wire [SW:0] branch_B_47 ; |
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| 301 | wire [SW:0] branch_A_48; |
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| 302 | wire [SW:0] branch_B_48; |
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| 303 | wire [SW:0] branch_A_49; |
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| 304 | wire [SW:0] branch_B_49; |
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| 305 | wire [SW:0] branch_A_50; |
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| 306 | wire [SW:0] branch_B_50; |
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| 307 | wire [SW:0] branch_A_51; |
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| 308 | wire [SW:0] branch_B_51; |
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| 309 | wire [SW:0] branch_A_52; |
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| 310 | wire [SW:0] branch_B_52; |
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| 311 | wire [SW:0] branch_A_53; |
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| 312 | wire [SW:0] branch_B_53; |
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| 313 | wire [SW:0] branch_A_54; |
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| 314 | wire [SW:0] branch_B_54; |
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| 315 | wire [SW:0] branch_A_55; |
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| 316 | wire [SW:0] branch_B_55; |
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| 317 | wire [SW:0] branch_A_56; |
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| 318 | wire [SW:0] branch_B_56; |
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| 319 | wire [SW:0] branch_A_57; |
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| 320 | wire [SW:0] branch_B_57; |
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| 321 | wire [SW:0] branch_A_58 ; |
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| 322 | wire [SW:0] branch_B_58 ; |
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| 323 | wire [SW:0] branch_A_59 ; |
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| 324 | wire [SW:0] branch_B_59 ; |
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| 325 | wire [SW:0] branch_A_60 ; |
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| 326 | wire [SW:0] branch_B_60 ; |
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| 327 | wire [SW:0] branch_A_61 ; |
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| 328 | wire [SW:0] branch_B_61 ; |
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| 329 | wire [SW:0] branch_A_62 ; |
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| 330 | wire [SW:0] branch_B_62 ; |
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| 331 | wire [SW:0] branch_A_63 ; |
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| 332 | wire [SW:0] branch_B_63 ; |
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| 333 | |
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| 334 | reg [M -1:0] metric_0 ; |
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| 335 | reg [M -1:0] metric_1 ; |
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| 336 | reg [M -1:0] metric_2 ; |
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| 337 | reg [M -1:0] metric_3 ; |
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| 338 | reg [M -1:0] metric_4 ; |
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| 339 | reg [M -1:0] metric_5 ; |
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| 340 | reg [M -1:0] metric_6 ; |
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| 341 | reg [M -1:0] metric_7 ; |
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| 342 | reg [M -1:0] metric_8 ; |
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| 343 | reg [M -1:0] metric_9 ; |
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| 344 | reg [M -1:0] metric_10 ; |
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| 345 | reg [M -1:0] metric_11 ; |
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| 346 | reg [M -1:0] metric_12 ; |
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| 347 | reg [M -1:0] metric_13 ; |
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| 348 | reg [M -1:0] metric_14 ; |
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| 349 | reg [M -1:0] metric_15 ; |
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| 350 | reg [M -1:0] metric_16; |
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| 351 | reg [M -1:0] metric_17; |
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| 352 | reg [M -1:0] metric_18; |
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| 353 | reg [M -1:0] metric_19; |
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| 354 | reg [M -1:0] metric_20; |
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| 355 | reg [M -1:0] metric_21; |
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| 356 | reg [M -1:0] metric_22; |
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| 357 | reg [M -1:0] metric_23; |
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| 358 | reg [M -1:0] metric_24; |
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| 359 | reg [M -1:0] metric_25; |
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| 360 | reg [M -1:0] metric_26 ; |
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| 361 | reg [M -1:0] metric_27 ; |
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| 362 | reg [M -1:0] metric_28 ; |
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| 363 | reg [M -1:0] metric_29 ; |
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| 364 | reg [M -1:0] metric_30 ; |
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| 365 | reg [M -1:0] metric_31 ; |
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| 366 | reg [M -1:0] metric_32; |
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| 367 | reg [M -1:0] metric_33; |
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| 368 | reg [M -1:0] metric_34; |
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| 369 | reg [M -1:0] metric_35; |
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| 370 | reg [M -1:0] metric_36; |
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| 371 | reg [M -1:0] metric_37; |
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| 372 | reg [M -1:0] metric_38; |
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| 373 | reg [M -1:0] metric_39; |
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| 374 | reg [M -1:0] metric_40; |
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| 375 | reg [M -1:0] metric_41; |
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| 376 | reg [M -1:0] metric_42 ; |
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| 377 | reg [M -1:0] metric_43 ; |
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| 378 | reg [M -1:0] metric_44 ; |
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| 379 | reg [M -1:0] metric_45 ; |
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| 380 | reg [M -1:0] metric_46 ; |
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| 381 | reg [M -1:0] metric_47 ; |
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| 382 | reg [M -1:0] metric_48; |
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| 383 | reg [M -1:0] metric_49; |
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| 384 | reg [M -1:0] metric_50; |
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| 385 | reg [M -1:0] metric_51; |
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| 386 | reg [M -1:0] metric_52; |
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| 387 | reg [M -1:0] metric_53; |
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| 388 | reg [M -1:0] metric_54; |
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| 389 | reg [M -1:0] metric_55; |
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| 390 | reg [M -1:0] metric_56; |
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| 391 | reg [M -1:0] metric_57; |
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| 392 | reg [M -1:0] metric_58 ; |
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| 393 | reg [M -1:0] metric_59 ; |
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| 394 | reg [M -1:0] metric_60 ; |
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| 395 | reg [M -1:0] metric_61 ; |
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| 396 | reg [M -1:0] metric_62 ; |
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| 397 | reg [M -1:0] metric_63 ; |
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| 398 | |
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| 399 | wire [M -1:0] metric_next_0 ; |
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| 400 | wire [M -1:0] metric_next_1 ; |
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| 401 | wire [M -1:0] metric_next_2 ; |
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| 402 | wire [M -1:0] metric_next_3 ; |
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| 403 | wire [M -1:0] metric_next_4 ; |
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| 404 | wire [M -1:0] metric_next_5 ; |
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| 405 | wire [M -1:0] metric_next_6 ; |
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| 406 | wire [M -1:0] metric_next_7 ; |
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| 407 | wire [M -1:0] metric_next_8 ; |
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| 408 | wire [M -1:0] metric_next_9 ; |
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| 409 | wire [M -1:0] metric_next_10 ; |
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| 410 | wire [M -1:0] metric_next_11 ; |
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| 411 | wire [M -1:0] metric_next_12 ; |
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| 412 | wire [M -1:0] metric_next_13 ; |
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| 413 | wire [M -1:0] metric_next_14 ; |
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| 414 | wire [M -1:0] metric_next_15 ; |
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| 415 | wire [M -1:0] metric_next_16; |
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| 416 | wire [M -1:0] metric_next_17; |
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| 417 | wire [M -1:0] metric_next_18; |
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| 418 | wire [M -1:0] metric_next_19; |
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| 419 | wire [M -1:0] metric_next_20; |
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| 420 | wire [M -1:0] metric_next_21; |
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| 421 | wire [M -1:0] metric_next_22; |
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| 422 | wire [M -1:0] metric_next_23; |
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| 423 | wire [M -1:0] metric_next_24; |
---|
| 424 | wire [M -1:0] metric_next_25; |
---|
| 425 | wire [M -1:0] metric_next_26 ; |
---|
| 426 | wire [M -1:0] metric_next_27 ; |
---|
| 427 | wire [M -1:0] metric_next_28 ; |
---|
| 428 | wire [M -1:0] metric_next_29 ; |
---|
| 429 | wire [M -1:0] metric_next_30 ; |
---|
| 430 | wire [M -1:0] metric_next_31 ; |
---|
| 431 | wire [M -1:0] metric_next_32; |
---|
| 432 | wire [M -1:0] metric_next_33; |
---|
| 433 | wire [M -1:0] metric_next_34; |
---|
| 434 | wire [M -1:0] metric_next_35; |
---|
| 435 | wire [M -1:0] metric_next_36; |
---|
| 436 | wire [M -1:0] metric_next_37; |
---|
| 437 | wire [M -1:0] metric_next_38; |
---|
| 438 | wire [M -1:0] metric_next_39; |
---|
| 439 | wire [M -1:0] metric_next_40; |
---|
| 440 | wire [M -1:0] metric_next_41; |
---|
| 441 | wire [M -1:0] metric_next_42 ; |
---|
| 442 | wire [M -1:0] metric_next_43 ; |
---|
| 443 | wire [M -1:0] metric_next_44 ; |
---|
| 444 | wire [M -1:0] metric_next_45 ; |
---|
| 445 | wire [M -1:0] metric_next_46 ; |
---|
| 446 | wire [M -1:0] metric_next_47 ; |
---|
| 447 | wire [M -1:0] metric_next_48; |
---|
| 448 | wire [M -1:0] metric_next_49; |
---|
| 449 | wire [M -1:0] metric_next_50; |
---|
| 450 | wire [M -1:0] metric_next_51; |
---|
| 451 | wire [M -1:0] metric_next_52; |
---|
| 452 | wire [M -1:0] metric_next_53; |
---|
| 453 | wire [M -1:0] metric_next_54; |
---|
| 454 | wire [M -1:0] metric_next_55; |
---|
| 455 | wire [M -1:0] metric_next_56; |
---|
| 456 | wire [M -1:0] metric_next_57; |
---|
| 457 | wire [M -1:0] metric_next_58 ; |
---|
| 458 | wire [M -1:0] metric_next_59 ; |
---|
| 459 | wire [M -1:0] metric_next_60 ; |
---|
| 460 | wire [M -1:0] metric_next_61 ; |
---|
| 461 | wire [M -1:0] metric_next_62 ; |
---|
| 462 | wire [M -1:0] metric_next_63 ; |
---|
| 463 | |
---|
| 464 | wire [M -1:0] metric_A_0 ; |
---|
| 465 | wire [M -1:0] metric_B_0 ; |
---|
| 466 | wire [M -1:0] metric_A_1 ; |
---|
| 467 | wire [M -1:0] metric_B_1 ; |
---|
| 468 | wire [M -1:0] metric_A_2 ; |
---|
| 469 | wire [M -1:0] metric_B_2 ; |
---|
| 470 | wire [M -1:0] metric_A_3 ; |
---|
| 471 | wire [M -1:0] metric_B_3 ; |
---|
| 472 | wire [M -1:0] metric_A_4 ; |
---|
| 473 | wire [M -1:0] metric_B_4 ; |
---|
| 474 | wire [M -1:0] metric_A_5 ; |
---|
| 475 | wire [M -1:0] metric_B_5 ; |
---|
| 476 | wire [M -1:0] metric_A_6 ; |
---|
| 477 | wire [M -1:0] metric_B_6 ; |
---|
| 478 | wire [M -1:0] metric_A_7 ; |
---|
| 479 | wire [M -1:0] metric_B_7 ; |
---|
| 480 | wire [M -1:0] metric_A_8 ; |
---|
| 481 | wire [M -1:0] metric_B_8 ; |
---|
| 482 | wire [M -1:0] metric_A_9 ; |
---|
| 483 | wire [M -1:0] metric_B_9 ; |
---|
| 484 | wire [M -1:0] metric_A_10 ; |
---|
| 485 | wire [M -1:0] metric_B_10 ; |
---|
| 486 | wire [M -1:0] metric_A_11 ; |
---|
| 487 | wire [M -1:0] metric_B_11 ; |
---|
| 488 | wire [M -1:0] metric_A_12 ; |
---|
| 489 | wire [M -1:0] metric_B_12 ; |
---|
| 490 | wire [M -1:0] metric_A_13 ; |
---|
| 491 | wire [M -1:0] metric_B_13 ; |
---|
| 492 | wire [M -1:0] metric_A_14 ; |
---|
| 493 | wire [M -1:0] metric_B_14 ; |
---|
| 494 | wire [M -1:0] metric_A_15 ; |
---|
| 495 | wire [M -1:0] metric_B_15 ; |
---|
| 496 | wire [M -1:0] metric_A_16; |
---|
| 497 | wire [M -1:0] metric_B_16; |
---|
| 498 | wire [M -1:0] metric_A_17; |
---|
| 499 | wire [M -1:0] metric_B_17; |
---|
| 500 | wire [M -1:0] metric_A_18; |
---|
| 501 | wire [M -1:0] metric_B_18; |
---|
| 502 | wire [M -1:0] metric_A_19; |
---|
| 503 | wire [M -1:0] metric_B_19; |
---|
| 504 | wire [M -1:0] metric_A_20; |
---|
| 505 | wire [M -1:0] metric_B_20; |
---|
| 506 | wire [M -1:0] metric_A_21; |
---|
| 507 | wire [M -1:0] metric_B_21; |
---|
| 508 | wire [M -1:0] metric_A_22; |
---|
| 509 | wire [M -1:0] metric_B_22; |
---|
| 510 | wire [M -1:0] metric_A_23; |
---|
| 511 | wire [M -1:0] metric_B_23; |
---|
| 512 | wire [M -1:0] metric_A_24; |
---|
| 513 | wire [M -1:0] metric_B_24; |
---|
| 514 | wire [M -1:0] metric_A_25; |
---|
| 515 | wire [M -1:0] metric_B_25; |
---|
| 516 | wire [M -1:0] metric_A_26 ; |
---|
| 517 | wire [M -1:0] metric_B_26 ; |
---|
| 518 | wire [M -1:0] metric_A_27 ; |
---|
| 519 | wire [M -1:0] metric_B_27 ; |
---|
| 520 | wire [M -1:0] metric_A_28 ; |
---|
| 521 | wire [M -1:0] metric_B_28 ; |
---|
| 522 | wire [M -1:0] metric_A_29 ; |
---|
| 523 | wire [M -1:0] metric_B_29 ; |
---|
| 524 | wire [M -1:0] metric_A_30 ; |
---|
| 525 | wire [M -1:0] metric_B_30 ; |
---|
| 526 | wire [M -1:0] metric_A_31 ; |
---|
| 527 | wire [M -1:0] metric_B_31 ; |
---|
| 528 | wire [M -1:0] metric_A_32; |
---|
| 529 | wire [M -1:0] metric_B_32; |
---|
| 530 | wire [M -1:0] metric_A_33; |
---|
| 531 | wire [M -1:0] metric_B_33; |
---|
| 532 | wire [M -1:0] metric_A_34; |
---|
| 533 | wire [M -1:0] metric_B_34; |
---|
| 534 | wire [M -1:0] metric_A_35; |
---|
| 535 | wire [M -1:0] metric_B_35; |
---|
| 536 | wire [M -1:0] metric_A_36; |
---|
| 537 | wire [M -1:0] metric_B_36; |
---|
| 538 | wire [M -1:0] metric_A_37; |
---|
| 539 | wire [M -1:0] metric_B_37; |
---|
| 540 | wire [M -1:0] metric_A_38; |
---|
| 541 | wire [M -1:0] metric_B_38; |
---|
| 542 | wire [M -1:0] metric_A_39; |
---|
| 543 | wire [M -1:0] metric_B_39; |
---|
| 544 | wire [M -1:0] metric_A_40; |
---|
| 545 | wire [M -1:0] metric_B_40; |
---|
| 546 | wire [M -1:0] metric_A_41; |
---|
| 547 | wire [M -1:0] metric_B_41; |
---|
| 548 | wire [M -1:0] metric_A_42 ; |
---|
| 549 | wire [M -1:0] metric_B_42 ; |
---|
| 550 | wire [M -1:0] metric_A_43 ; |
---|
| 551 | wire [M -1:0] metric_B_43 ; |
---|
| 552 | wire [M -1:0] metric_A_44 ; |
---|
| 553 | wire [M -1:0] metric_B_44 ; |
---|
| 554 | wire [M -1:0] metric_A_45 ; |
---|
| 555 | wire [M -1:0] metric_B_45 ; |
---|
| 556 | wire [M -1:0] metric_A_46 ; |
---|
| 557 | wire [M -1:0] metric_B_46 ; |
---|
| 558 | wire [M -1:0] metric_A_47 ; |
---|
| 559 | wire [M -1:0] metric_B_47 ; |
---|
| 560 | wire [M -1:0] metric_A_48; |
---|
| 561 | wire [M -1:0] metric_B_48; |
---|
| 562 | wire [M -1:0] metric_A_49; |
---|
| 563 | wire [M -1:0] metric_B_49; |
---|
| 564 | wire [M -1:0] metric_A_50; |
---|
| 565 | wire [M -1:0] metric_B_50; |
---|
| 566 | wire [M -1:0] metric_A_51; |
---|
| 567 | wire [M -1:0] metric_B_51; |
---|
| 568 | wire [M -1:0] metric_A_52; |
---|
| 569 | wire [M -1:0] metric_B_52; |
---|
| 570 | wire [M -1:0] metric_A_53; |
---|
| 571 | wire [M -1:0] metric_B_53; |
---|
| 572 | wire [M -1:0] metric_A_54; |
---|
| 573 | wire [M -1:0] metric_B_54; |
---|
| 574 | wire [M -1:0] metric_A_55; |
---|
| 575 | wire [M -1:0] metric_B_55; |
---|
| 576 | wire [M -1:0] metric_A_56; |
---|
| 577 | wire [M -1:0] metric_B_56; |
---|
| 578 | wire [M -1:0] metric_A_57; |
---|
| 579 | wire [M -1:0] metric_B_57; |
---|
| 580 | wire [M -1:0] metric_A_58 ; |
---|
| 581 | wire [M -1:0] metric_B_58 ; |
---|
| 582 | wire [M -1:0] metric_A_59 ; |
---|
| 583 | wire [M -1:0] metric_B_59 ; |
---|
| 584 | wire [M -1:0] metric_A_60 ; |
---|
| 585 | wire [M -1:0] metric_B_60 ; |
---|
| 586 | wire [M -1:0] metric_A_61 ; |
---|
| 587 | wire [M -1:0] metric_B_61 ; |
---|
| 588 | wire [M -1:0] metric_A_62 ; |
---|
| 589 | wire [M -1:0] metric_B_62 ; |
---|
| 590 | wire [M -1:0] metric_A_63 ; |
---|
| 591 | wire [M -1:0] metric_B_63 ; |
---|
| 592 | |
---|
| 593 | // 64 state tran |
---|
| 594 | reg [0:0] tran_state_0 [TR -1:0] ; |
---|
| 595 | reg [0:0] tran_state_1 [TR -1:0] ; |
---|
| 596 | reg [0:0] tran_state_2 [TR -1:0] ; |
---|
| 597 | reg [0:0] tran_state_3 [TR -1:0] ; |
---|
| 598 | reg [0:0] tran_state_4 [TR -1:0] ; |
---|
| 599 | reg [0:0] tran_state_5 [TR -1:0] ; |
---|
| 600 | reg [0:0] tran_state_6 [TR -1:0] ; |
---|
| 601 | reg [0:0] tran_state_7 [TR -1:0] ; |
---|
| 602 | reg [0:0] tran_state_8 [TR -1:0] ; |
---|
| 603 | reg [0:0] tran_state_9 [TR -1:0] ; |
---|
| 604 | reg [0:0] tran_state_10 [TR -1:0] ; |
---|
| 605 | reg [0:0] tran_state_11 [TR -1:0] ; |
---|
| 606 | reg [0:0] tran_state_12 [TR -1:0] ; |
---|
| 607 | reg [0:0] tran_state_13 [TR -1:0] ; |
---|
| 608 | reg [0:0] tran_state_14 [TR -1:0] ; |
---|
| 609 | reg [0:0] tran_state_15 [TR -1:0] ; |
---|
| 610 | reg [0:0] tran_state_16 [TR -1:0] ; |
---|
| 611 | reg [0:0] tran_state_17 [TR -1:0] ; |
---|
| 612 | reg [0:0] tran_state_18 [TR -1:0] ; |
---|
| 613 | reg [0:0] tran_state_19 [TR -1:0] ; |
---|
| 614 | reg [0:0] tran_state_20 [TR -1:0] ; |
---|
| 615 | reg [0:0] tran_state_21 [TR -1:0] ; |
---|
| 616 | reg [0:0] tran_state_22 [TR -1:0] ; |
---|
| 617 | reg [0:0] tran_state_23 [TR -1:0] ; |
---|
| 618 | reg [0:0] tran_state_24 [TR -1:0] ; |
---|
| 619 | reg [0:0] tran_state_25 [TR -1:0] ; |
---|
| 620 | reg [0:0] tran_state_26 [TR -1:0] ; |
---|
| 621 | reg [0:0] tran_state_27 [TR -1:0] ; |
---|
| 622 | reg [0:0] tran_state_28 [TR -1:0] ; |
---|
| 623 | reg [0:0] tran_state_29 [TR -1:0] ; |
---|
| 624 | reg [0:0] tran_state_30 [TR -1:0] ; |
---|
| 625 | reg [0:0] tran_state_31 [TR -1:0] ; |
---|
| 626 | reg [0:0] tran_state_32 [TR -1:0] ; |
---|
| 627 | reg [0:0] tran_state_33 [TR -1:0] ; |
---|
| 628 | reg [0:0] tran_state_34 [TR -1:0] ; |
---|
| 629 | reg [0:0] tran_state_35 [TR -1:0] ; |
---|
| 630 | reg [0:0] tran_state_36 [TR -1:0] ; |
---|
| 631 | reg [0:0] tran_state_37 [TR -1:0] ; |
---|
| 632 | reg [0:0] tran_state_38 [TR -1:0] ; |
---|
| 633 | reg [0:0] tran_state_39 [TR -1:0] ; |
---|
| 634 | reg [0:0] tran_state_40 [TR -1:0] ; |
---|
| 635 | reg [0:0] tran_state_41 [TR -1:0] ; |
---|
| 636 | reg [0:0] tran_state_42 [TR -1:0] ; |
---|
| 637 | reg [0:0] tran_state_43 [TR -1:0] ; |
---|
| 638 | reg [0:0] tran_state_44 [TR -1:0] ; |
---|
| 639 | reg [0:0] tran_state_45 [TR -1:0] ; |
---|
| 640 | reg [0:0] tran_state_46 [TR -1:0] ; |
---|
| 641 | reg [0:0] tran_state_47 [TR -1:0] ; |
---|
| 642 | reg [0:0] tran_state_48 [TR -1:0] ; |
---|
| 643 | reg [0:0] tran_state_49 [TR -1:0] ; |
---|
| 644 | reg [0:0] tran_state_50 [TR -1:0] ; |
---|
| 645 | reg [0:0] tran_state_51 [TR -1:0] ; |
---|
| 646 | reg [0:0] tran_state_52 [TR -1:0] ; |
---|
| 647 | reg [0:0] tran_state_53 [TR -1:0] ; |
---|
| 648 | reg [0:0] tran_state_54 [TR -1:0] ; |
---|
| 649 | reg [0:0] tran_state_55 [TR -1:0] ; |
---|
| 650 | reg [0:0] tran_state_56 [TR -1:0] ; |
---|
| 651 | reg [0:0] tran_state_57 [TR -1:0] ; |
---|
| 652 | reg [0:0] tran_state_58 [TR -1:0] ; |
---|
| 653 | reg [0:0] tran_state_59 [TR -1:0] ; |
---|
| 654 | reg [0:0] tran_state_60 [TR -1:0] ; |
---|
| 655 | reg [0:0] tran_state_61 [TR -1:0] ; |
---|
| 656 | reg [0:0] tran_state_62 [TR -1:0] ; |
---|
| 657 | reg [0:0] tran_state_63 [TR -1:0] ; |
---|
| 658 | |
---|
| 659 | reg [TRW -1:0] wptr ; |
---|
| 660 | reg [TRW -1:0] last_wptr ; |
---|
| 661 | |
---|
| 662 | wire [M -1:0] diff_0 ; |
---|
| 663 | wire [M -1:0] diff_1 ; |
---|
| 664 | wire [M -1:0] diff_2 ; |
---|
| 665 | wire [M -1:0] diff_3 ; |
---|
| 666 | wire [M -1:0] diff_4 ; |
---|
| 667 | wire [M -1:0] diff_5 ; |
---|
| 668 | wire [M -1:0] diff_6 ; |
---|
| 669 | wire [M -1:0] diff_7 ; |
---|
| 670 | wire [M -1:0] diff_8 ; |
---|
| 671 | wire [M -1:0] diff_9 ; |
---|
| 672 | wire [M -1:0] diff_10; |
---|
| 673 | wire [M -1:0] diff_11; |
---|
| 674 | wire [M -1:0] diff_12; |
---|
| 675 | wire [M -1:0] diff_13; |
---|
| 676 | wire [M -1:0] diff_14; |
---|
| 677 | wire [M -1:0] diff_15; |
---|
| 678 | wire [M -1:0] diff_16; |
---|
| 679 | wire [M -1:0] diff_17; |
---|
| 680 | wire [M -1:0] diff_18; |
---|
| 681 | wire [M -1:0] diff_19; |
---|
| 682 | wire [M -1:0] diff_20; |
---|
| 683 | wire [M -1:0] diff_21; |
---|
| 684 | wire [M -1:0] diff_22; |
---|
| 685 | wire [M -1:0] diff_23; |
---|
| 686 | wire [M -1:0] diff_24; |
---|
| 687 | wire [M -1:0] diff_25; |
---|
| 688 | wire [M -1:0] diff_26; |
---|
| 689 | wire [M -1:0] diff_27; |
---|
| 690 | wire [M -1:0] diff_28; |
---|
| 691 | wire [M -1:0] diff_29; |
---|
| 692 | wire [M -1:0] diff_30; |
---|
| 693 | wire [M -1:0] diff_31; |
---|
| 694 | wire [M -1:0] diff_32; |
---|
| 695 | wire [M -1:0] diff_33; |
---|
| 696 | wire [M -1:0] diff_34; |
---|
| 697 | wire [M -1:0] diff_35; |
---|
| 698 | wire [M -1:0] diff_36; |
---|
| 699 | wire [M -1:0] diff_37; |
---|
| 700 | wire [M -1:0] diff_38; |
---|
| 701 | wire [M -1:0] diff_39; |
---|
| 702 | wire [M -1:0] diff_40; |
---|
| 703 | wire [M -1:0] diff_41; |
---|
| 704 | wire [M -1:0] diff_42; |
---|
| 705 | wire [M -1:0] diff_43; |
---|
| 706 | wire [M -1:0] diff_44; |
---|
| 707 | wire [M -1:0] diff_45; |
---|
| 708 | wire [M -1:0] diff_46; |
---|
| 709 | wire [M -1:0] diff_47; |
---|
| 710 | wire [M -1:0] diff_48; |
---|
| 711 | wire [M -1:0] diff_49; |
---|
| 712 | wire [M -1:0] diff_50; |
---|
| 713 | wire [M -1:0] diff_51; |
---|
| 714 | wire [M -1:0] diff_52; |
---|
| 715 | wire [M -1:0] diff_53; |
---|
| 716 | wire [M -1:0] diff_54; |
---|
| 717 | wire [M -1:0] diff_55; |
---|
| 718 | wire [M -1:0] diff_56; |
---|
| 719 | wire [M -1:0] diff_57; |
---|
| 720 | wire [M -1:0] diff_58; |
---|
| 721 | wire [M -1:0] diff_59; |
---|
| 722 | wire [M -1:0] diff_60; |
---|
| 723 | wire [M -1:0] diff_61; |
---|
| 724 | wire [M -1:0] diff_62; |
---|
| 725 | wire [M -1:0] diff_63; |
---|
| 726 | |
---|
| 727 | reg nd ; |
---|
| 728 | reg [LW -1:0] cnt ; |
---|
| 729 | reg trace ; |
---|
| 730 | reg trace_en ; |
---|
[2184] | 731 | |
---|
[4394] | 732 | reg early_trace1_en; |
---|
| 733 | reg early_trace2_en; |
---|
| 734 | |
---|
[2088] | 735 | wire trace_done ; |
---|
| 736 | reg trace_done_s0 ; |
---|
| 737 | wire trace_done_pos ; |
---|
| 738 | reg [TRW -1:0] trace_cnt ; |
---|
| 739 | reg [L-1:0] res ; |
---|
| 740 | wire [L-1:0] res_shift ; |
---|
| 741 | wire [K-2: 0] init_state_i ; |
---|
| 742 | reg [K-2: 0] trace_state ; |
---|
| 743 | |
---|
| 744 | wire [K-2: 0] cur_state0 ; |
---|
| 745 | wire [K-2: 0] cur_state1 ; |
---|
| 746 | wire [K-2: 0] next_state ; |
---|
| 747 | reg [TRW -1:0] trace_start_wptr ; |
---|
| 748 | wire [TRW -1:0] trace_start_pos ; |
---|
| 749 | wire [TRW -1:0] trace_start_pos0 ; |
---|
| 750 | wire [TRW -1:0] trace_start_pos1 ; |
---|
| 751 | reg last_trace ; |
---|
| 752 | reg last_trace_s0 ; |
---|
| 753 | wire trace2 ; |
---|
| 754 | reg trace2_s1 ; |
---|
| 755 | reg trace2_s2 ; |
---|
| 756 | reg trace_pos ; |
---|
| 757 | wire trace_pos_i ; |
---|
| 758 | reg [LW -1:0] last_trace_num ; |
---|
| 759 | reg flush_en ; |
---|
| 760 | wire flush ; |
---|
| 761 | reg done_i ; |
---|
| 762 | |
---|
| 763 | wire [K-2: 0] state_0 ; |
---|
| 764 | wire [K-2: 0] state_1 ; |
---|
| 765 | wire [K-2: 0] state_2 ; |
---|
| 766 | wire [K-2: 0] state_3 ; |
---|
| 767 | wire [K-2: 0] state_4 ; |
---|
| 768 | wire [K-2: 0] state_5 ; |
---|
| 769 | wire [K-2: 0] state_6 ; |
---|
| 770 | wire [K-2: 0] state_7 ; |
---|
| 771 | wire [K-2: 0] state_8 ; |
---|
| 772 | wire [K-2: 0] state_9 ; |
---|
| 773 | wire [K-2: 0] state_10 ; |
---|
| 774 | wire [K-2: 0] state_11 ; |
---|
| 775 | wire [K-2: 0] state_12 ; |
---|
| 776 | wire [K-2: 0] state_13 ; |
---|
| 777 | wire [K-2: 0] state_14 ; |
---|
| 778 | wire [K-2: 0] state_15 ; |
---|
| 779 | |
---|
| 780 | wire [K-2: 0] state_s1_0 ; |
---|
| 781 | wire [K-2: 0] state_s1_1 ; |
---|
| 782 | wire [K-2: 0] state_s1_2 ; |
---|
| 783 | wire [K-2: 0] state_s1_3 ; |
---|
| 784 | |
---|
| 785 | wire [K-2: 0] state_s2_0 ; |
---|
| 786 | |
---|
| 787 | wire [M-1: 0] max_0 ; |
---|
| 788 | wire [M-1: 0] max_1 ; |
---|
| 789 | wire [M-1: 0] max_2 ; |
---|
| 790 | wire [M-1: 0] max_3 ; |
---|
| 791 | wire [M-1: 0] max_4 ; |
---|
| 792 | wire [M-1: 0] max_5 ; |
---|
| 793 | wire [M-1: 0] max_6 ; |
---|
| 794 | wire [M-1: 0] max_7 ; |
---|
| 795 | wire [M-1: 0] max_8 ; |
---|
| 796 | wire [M-1: 0] max_9 ; |
---|
| 797 | wire [M-1: 0] max_10 ; |
---|
| 798 | wire [M-1: 0] max_11 ; |
---|
| 799 | wire [M-1: 0] max_12 ; |
---|
| 800 | wire [M-1: 0] max_13 ; |
---|
| 801 | wire [M-1: 0] max_14 ; |
---|
| 802 | wire [M-1: 0] max_15 ; |
---|
| 803 | |
---|
| 804 | wire [M-1: 0] max_s1_0 ; |
---|
| 805 | wire [M-1: 0] max_s1_1 ; |
---|
| 806 | wire [M-1: 0] max_s1_2 ; |
---|
| 807 | wire [M-1: 0] max_s1_3 ; |
---|
| 808 | |
---|
| 809 | //reg [M-1: 0] max_s1_0_s0 ; |
---|
| 810 | //reg [M-1: 0] max_s1_1_s0 ; |
---|
| 811 | //reg [M-1: 0] max_s1_2_s0 ; |
---|
| 812 | //reg [M-1: 0] max_s1_3_s0 ; |
---|
| 813 | |
---|
| 814 | //wire [M-1: 0] max_s2_0 ; |
---|
| 815 | |
---|
| 816 | wire [N -1:0] tran_all_0 ; |
---|
| 817 | wire [N -1:0] tran_all_1 ; |
---|
| 818 | |
---|
| 819 | reg [6:0] flush_cnt ; |
---|
| 820 | wire [LW -1:0] rem_i ; |
---|
| 821 | reg [LW -1:0] last_cnt ; |
---|
| 822 | wire [LW -1:0] last_cnt_next ; |
---|
| 823 | reg last_trace_d0 ; |
---|
| 824 | reg last_trace_d1 ; |
---|
| 825 | reg last_trace_d2 ; |
---|
| 826 | reg last_trace_d3 ; |
---|
| 827 | reg last_trace_d4 ; |
---|
| 828 | reg last_trace_d5 ; |
---|
| 829 | reg one_more_out ; |
---|
| 830 | reg in_dec ; |
---|
| 831 | wire dv_in_gate ; |
---|
| 832 | reg trace_pos_s0 ; |
---|
| 833 | |
---|
| 834 | //====================================== |
---|
| 835 | // Main body of code |
---|
| 836 | //====================================== |
---|
| 837 | assign dv_out = trace_done_pos | one_more_out ; |
---|
| 838 | assign res_shift = res << last_trace_num ; |
---|
| 839 | assign dout = res_shift [L -1:C] ; |
---|
| 840 | assign remain = last_trace ? rem_i : 0 ; |
---|
| 841 | assign done = dv_out & done_i ; |
---|
| 842 | assign rem_i = ~last_cnt_next[LW-1] ? 0 : last_cnt ; |
---|
| 843 | |
---|
| 844 | //assign dv_in_gate = dv_in & in_dec ; |
---|
| 845 | assign dv_in_gate = dv_in & in_dec & (~packet_end) ; |
---|
| 846 | |
---|
[2128] | 847 | always @ (posedge clk) |
---|
[2088] | 848 | if (~nrst) |
---|
| 849 | in_dec <= 1'b0 ; |
---|
| 850 | else if (packet_start) |
---|
| 851 | in_dec <= 1'b1 ; |
---|
| 852 | else if (packet_end) |
---|
| 853 | in_dec <= 1'b0 ; |
---|
| 854 | |
---|
| 855 | |
---|
| 856 | //{coe_0 coe_1}, generated from C model gen_table |
---|
| 857 | //0 0; |
---|
| 858 | //0 1; |
---|
| 859 | //1 0; |
---|
| 860 | //1 1; |
---|
| 861 | //1 0; |
---|
| 862 | //1 1; |
---|
| 863 | //0 0; |
---|
| 864 | //0 1; |
---|
| 865 | |
---|
| 866 | assign branch_00 = {llr1[SW -1], llr1} + {llr0[SW -1], llr0} ; //LLR(bit1) + LLR(bit0) |
---|
| 867 | assign branch_01 = {llr1[SW -1], llr1} ; //LLR(bit1) |
---|
| 868 | assign branch_10 = {llr0[SW -1], llr0} ; //LLR(bit0) |
---|
| 869 | assign branch_11 = 0 ; //0 |
---|
| 870 | |
---|
| 871 | assign branch_A_0 = branch_00 ; |
---|
| 872 | assign branch_B_0 = branch_11 ; |
---|
| 873 | assign branch_A_1 = branch_10 ; |
---|
| 874 | assign branch_B_1 = branch_01 ; |
---|
| 875 | assign branch_A_2 = branch_00 ; |
---|
| 876 | assign branch_B_2 = branch_11 ; |
---|
| 877 | assign branch_A_3 = branch_10 ; |
---|
| 878 | assign branch_B_3 = branch_01 ; |
---|
| 879 | assign branch_A_4 = branch_11 ; |
---|
| 880 | assign branch_B_4 = branch_00 ; |
---|
| 881 | assign branch_A_5 = branch_01 ; |
---|
| 882 | assign branch_B_5 = branch_10 ; |
---|
| 883 | assign branch_A_6 = branch_11 ; |
---|
| 884 | assign branch_B_6 = branch_00 ; |
---|
| 885 | assign branch_A_7 = branch_01 ; |
---|
| 886 | assign branch_B_7 = branch_10 ; |
---|
| 887 | assign branch_A_8 = branch_11 ; |
---|
| 888 | assign branch_B_8 = branch_00 ; |
---|
| 889 | assign branch_A_9 = branch_01 ; |
---|
| 890 | assign branch_B_9 = branch_10 ; |
---|
| 891 | assign branch_A_10 = branch_11 ; |
---|
| 892 | assign branch_B_10 = branch_00 ; |
---|
| 893 | assign branch_A_11 = branch_01 ; |
---|
| 894 | assign branch_B_11 = branch_10 ; |
---|
| 895 | assign branch_A_12 = branch_00 ; |
---|
| 896 | assign branch_B_12 = branch_11 ; |
---|
| 897 | assign branch_A_13 = branch_10 ; |
---|
| 898 | assign branch_B_13 = branch_01 ; |
---|
| 899 | assign branch_A_14 = branch_00 ; |
---|
| 900 | assign branch_B_14 = branch_11 ; |
---|
| 901 | assign branch_A_15 = branch_10 ; |
---|
| 902 | assign branch_B_15 = branch_01 ; |
---|
| 903 | assign branch_A_16 = branch_01 ; |
---|
| 904 | assign branch_B_16 = branch_10 ; |
---|
| 905 | assign branch_A_17 = branch_11 ; |
---|
| 906 | assign branch_B_17 = branch_00 ; |
---|
| 907 | assign branch_A_18 = branch_01 ; |
---|
| 908 | assign branch_B_18 = branch_10 ; |
---|
| 909 | assign branch_A_19 = branch_11 ; |
---|
| 910 | assign branch_B_19 = branch_00 ; |
---|
| 911 | assign branch_A_20 = branch_10 ; |
---|
| 912 | assign branch_B_20 = branch_01 ; |
---|
| 913 | assign branch_A_21 = branch_00 ; |
---|
| 914 | assign branch_B_21 = branch_11 ; |
---|
| 915 | assign branch_A_22 = branch_10 ; |
---|
| 916 | assign branch_B_22 = branch_01 ; |
---|
| 917 | assign branch_A_23 = branch_00 ; |
---|
| 918 | assign branch_B_23 = branch_11 ; |
---|
| 919 | assign branch_A_24 = branch_10 ; |
---|
| 920 | assign branch_B_24 = branch_01 ; |
---|
| 921 | assign branch_A_25 = branch_00 ; |
---|
| 922 | assign branch_B_25 = branch_11 ; |
---|
| 923 | assign branch_A_26 = branch_10 ; |
---|
| 924 | assign branch_B_26 = branch_01 ; |
---|
| 925 | assign branch_A_27 = branch_00 ; |
---|
| 926 | assign branch_B_27 = branch_11 ; |
---|
| 927 | assign branch_A_28 = branch_01 ; |
---|
| 928 | assign branch_B_28 = branch_10 ; |
---|
| 929 | assign branch_A_29 = branch_11 ; |
---|
| 930 | assign branch_B_29 = branch_00 ; |
---|
| 931 | assign branch_A_30 = branch_01 ; |
---|
| 932 | assign branch_B_30 = branch_10 ; |
---|
| 933 | assign branch_A_31 = branch_11 ; |
---|
| 934 | assign branch_B_31 = branch_00 ; |
---|
| 935 | |
---|
| 936 | assign branch_A_32 = branch_B_0 ; |
---|
| 937 | assign branch_B_32 = branch_A_0 ; |
---|
| 938 | assign branch_A_33 = branch_B_1 ; |
---|
| 939 | assign branch_B_33 = branch_A_1 ; |
---|
| 940 | assign branch_A_34 = branch_B_2 ; |
---|
| 941 | assign branch_B_34 = branch_A_2 ; |
---|
| 942 | assign branch_A_35 = branch_B_3 ; |
---|
| 943 | assign branch_B_35 = branch_A_3 ; |
---|
| 944 | assign branch_A_36 = branch_B_4 ; |
---|
| 945 | assign branch_B_36 = branch_A_4 ; |
---|
| 946 | assign branch_A_37 = branch_B_5 ; |
---|
| 947 | assign branch_B_37 = branch_A_5 ; |
---|
| 948 | assign branch_A_38 = branch_B_6 ; |
---|
| 949 | assign branch_B_38 = branch_A_6 ; |
---|
| 950 | assign branch_A_39 = branch_B_7 ; |
---|
| 951 | assign branch_B_39 = branch_A_7 ; |
---|
| 952 | assign branch_A_40 = branch_B_8 ; |
---|
| 953 | assign branch_B_40 = branch_A_8 ; |
---|
| 954 | assign branch_A_41 = branch_B_9 ; |
---|
| 955 | assign branch_B_41 = branch_A_9 ; |
---|
| 956 | assign branch_A_42 = branch_B_10 ; |
---|
| 957 | assign branch_B_42 = branch_A_10 ; |
---|
| 958 | assign branch_A_43 = branch_B_11 ; |
---|
| 959 | assign branch_B_43 = branch_A_11 ; |
---|
| 960 | assign branch_A_44 = branch_B_12 ; |
---|
| 961 | assign branch_B_44 = branch_A_12 ; |
---|
| 962 | assign branch_A_45 = branch_B_13 ; |
---|
| 963 | assign branch_B_45 = branch_A_13 ; |
---|
| 964 | assign branch_A_46 = branch_B_14 ; |
---|
| 965 | assign branch_B_46 = branch_A_14 ; |
---|
| 966 | assign branch_A_47 = branch_B_15 ; |
---|
| 967 | assign branch_B_47 = branch_A_15 ; |
---|
| 968 | assign branch_A_48 = branch_B_16 ; |
---|
| 969 | assign branch_B_48 = branch_A_16 ; |
---|
| 970 | assign branch_A_49 = branch_B_17 ; |
---|
| 971 | assign branch_B_49 = branch_A_17 ; |
---|
| 972 | assign branch_A_50 = branch_B_18 ; |
---|
| 973 | assign branch_B_50 = branch_A_18 ; |
---|
| 974 | assign branch_A_51 = branch_B_19 ; |
---|
| 975 | assign branch_B_51 = branch_A_19 ; |
---|
| 976 | assign branch_A_52 = branch_B_20 ; |
---|
| 977 | assign branch_B_52 = branch_A_20 ; |
---|
| 978 | assign branch_A_53 = branch_B_21 ; |
---|
| 979 | assign branch_B_53 = branch_A_21 ; |
---|
| 980 | assign branch_A_54 = branch_B_22 ; |
---|
| 981 | assign branch_B_54 = branch_A_22 ; |
---|
| 982 | assign branch_A_55 = branch_B_23 ; |
---|
| 983 | assign branch_B_55 = branch_A_23 ; |
---|
| 984 | assign branch_A_56 = branch_B_24 ; |
---|
| 985 | assign branch_B_56 = branch_A_24 ; |
---|
| 986 | assign branch_A_57 = branch_B_25 ; |
---|
| 987 | assign branch_B_57 = branch_A_25 ; |
---|
| 988 | assign branch_A_58 = branch_B_26 ; |
---|
| 989 | assign branch_B_58 = branch_A_26 ; |
---|
| 990 | assign branch_A_59 = branch_B_27 ; |
---|
| 991 | assign branch_B_59 = branch_A_27 ; |
---|
| 992 | assign branch_A_60 = branch_B_28 ; |
---|
| 993 | assign branch_B_60 = branch_A_28 ; |
---|
| 994 | assign branch_A_61 = branch_B_29 ; |
---|
| 995 | assign branch_B_61 = branch_A_29 ; |
---|
| 996 | assign branch_A_62 = branch_B_30 ; |
---|
| 997 | assign branch_B_62 = branch_A_30 ; |
---|
| 998 | assign branch_A_63 = branch_B_31 ; |
---|
| 999 | assign branch_B_63 = branch_A_31 ; |
---|
| 1000 | |
---|
| 1001 | assign metric_A_0 = metric_0 + {{(M -SW -1){branch_A_0[SW]}}, branch_A_0} ; |
---|
| 1002 | assign metric_B_0 = metric_1 + {{(M -SW -1){branch_B_0[SW]}}, branch_B_0} ; |
---|
| 1003 | assign metric_A_1 = metric_2 + {{(M -SW -1){branch_A_1[SW]}}, branch_A_1} ; |
---|
| 1004 | assign metric_B_1 = metric_3 + {{(M -SW -1){branch_B_1[SW]}}, branch_B_1} ; |
---|
| 1005 | assign metric_A_2 = metric_4 + {{(M -SW -1){branch_A_2[SW]}}, branch_A_2} ; |
---|
| 1006 | assign metric_B_2 = metric_5 + {{(M -SW -1){branch_B_2[SW]}}, branch_B_2} ; |
---|
| 1007 | assign metric_A_3 = metric_6 + {{(M -SW -1){branch_A_3[SW]}}, branch_A_3} ; |
---|
| 1008 | assign metric_B_3 = metric_7 + {{(M -SW -1){branch_B_3[SW]}}, branch_B_3} ; |
---|
| 1009 | assign metric_A_4 = metric_8 + {{(M -SW -1){branch_A_4[SW]}}, branch_A_4} ; |
---|
| 1010 | assign metric_B_4 = metric_9 + {{(M -SW -1){branch_B_4[SW]}}, branch_B_4} ; |
---|
| 1011 | assign metric_A_5 = metric_10 + {{(M -SW -1){branch_A_5[SW]}}, branch_A_5} ; |
---|
| 1012 | assign metric_B_5 = metric_11 + {{(M -SW -1){branch_B_5[SW]}}, branch_B_5} ; |
---|
| 1013 | assign metric_A_6 = metric_12 + {{(M -SW -1){branch_A_6[SW]}}, branch_A_6} ; |
---|
| 1014 | assign metric_B_6 = metric_13 + {{(M -SW -1){branch_B_6[SW]}}, branch_B_6} ; |
---|
| 1015 | assign metric_A_7 = metric_14 + {{(M -SW -1){branch_A_7[SW]}}, branch_A_7} ; |
---|
| 1016 | assign metric_B_7 = metric_15 + {{(M -SW -1){branch_B_7[SW]}}, branch_B_7} ; |
---|
| 1017 | assign metric_A_8 = metric_16 + {{(M -SW -1){branch_A_8[SW]}}, branch_A_8} ; |
---|
| 1018 | assign metric_B_8 = metric_17 + {{(M -SW -1){branch_B_8[SW]}}, branch_B_8} ; |
---|
| 1019 | assign metric_A_9 = metric_18 + {{(M -SW -1){branch_A_9[SW]}}, branch_A_9} ; |
---|
| 1020 | assign metric_B_9 = metric_19 + {{(M -SW -1){branch_B_9[SW]}}, branch_B_9} ; |
---|
| 1021 | assign metric_A_10 = metric_20 + {{(M -SW -1){branch_A_10[SW]}}, branch_A_10} ; |
---|
| 1022 | assign metric_B_10 = metric_21 + {{(M -SW -1){branch_B_10[SW]}}, branch_B_10} ; |
---|
| 1023 | assign metric_A_11 = metric_22 + {{(M -SW -1){branch_A_11[SW]}}, branch_A_11} ; |
---|
| 1024 | assign metric_B_11 = metric_23 + {{(M -SW -1){branch_B_11[SW]}}, branch_B_11} ; |
---|
| 1025 | assign metric_A_12 = metric_24 + {{(M -SW -1){branch_A_12[SW]}}, branch_A_12} ; |
---|
| 1026 | assign metric_B_12 = metric_25 + {{(M -SW -1){branch_B_12[SW]}}, branch_B_12} ; |
---|
| 1027 | assign metric_A_13 = metric_26 + {{(M -SW -1){branch_A_13[SW]}}, branch_A_13} ; |
---|
| 1028 | assign metric_B_13 = metric_27 + {{(M -SW -1){branch_B_13[SW]}}, branch_B_13} ; |
---|
| 1029 | assign metric_A_14 = metric_28 + {{(M -SW -1){branch_A_14[SW]}}, branch_A_14} ; |
---|
| 1030 | assign metric_B_14 = metric_29 + {{(M -SW -1){branch_B_14[SW]}}, branch_B_14} ; |
---|
| 1031 | assign metric_A_15 = metric_30 + {{(M -SW -1){branch_A_15[SW]}}, branch_A_15} ; |
---|
| 1032 | assign metric_B_15 = metric_31 + {{(M -SW -1){branch_B_15[SW]}}, branch_B_15} ; |
---|
| 1033 | assign metric_A_16 = metric_32 + {{(M -SW -1){branch_A_16[SW]}}, branch_A_16} ; |
---|
| 1034 | assign metric_B_16 = metric_33 + {{(M -SW -1){branch_B_16[SW]}}, branch_B_16} ; |
---|
| 1035 | assign metric_A_17 = metric_34 + {{(M -SW -1){branch_A_17[SW]}}, branch_A_17} ; |
---|
| 1036 | assign metric_B_17 = metric_35 + {{(M -SW -1){branch_B_17[SW]}}, branch_B_17} ; |
---|
| 1037 | assign metric_A_18 = metric_36 + {{(M -SW -1){branch_A_18[SW]}}, branch_A_18} ; |
---|
| 1038 | assign metric_B_18 = metric_37 + {{(M -SW -1){branch_B_18[SW]}}, branch_B_18} ; |
---|
| 1039 | assign metric_A_19 = metric_38 + {{(M -SW -1){branch_A_19[SW]}}, branch_A_19} ; |
---|
| 1040 | assign metric_B_19 = metric_39 + {{(M -SW -1){branch_B_19[SW]}}, branch_B_19} ; |
---|
| 1041 | assign metric_A_20 = metric_40 + {{(M -SW -1){branch_A_20[SW]}}, branch_A_20} ; |
---|
| 1042 | assign metric_B_20 = metric_41 + {{(M -SW -1){branch_B_20[SW]}}, branch_B_20} ; |
---|
| 1043 | assign metric_A_21 = metric_42 + {{(M -SW -1){branch_A_21[SW]}}, branch_A_21} ; |
---|
| 1044 | assign metric_B_21 = metric_43 + {{(M -SW -1){branch_B_21[SW]}}, branch_B_21} ; |
---|
| 1045 | assign metric_A_22 = metric_44 + {{(M -SW -1){branch_A_22[SW]}}, branch_A_22} ; |
---|
| 1046 | assign metric_B_22 = metric_45 + {{(M -SW -1){branch_B_22[SW]}}, branch_B_22} ; |
---|
| 1047 | assign metric_A_23 = metric_46 + {{(M -SW -1){branch_A_23[SW]}}, branch_A_23} ; |
---|
| 1048 | assign metric_B_23 = metric_47 + {{(M -SW -1){branch_B_23[SW]}}, branch_B_23} ; |
---|
| 1049 | assign metric_A_24 = metric_48 + {{(M -SW -1){branch_A_24[SW]}}, branch_A_24} ; |
---|
| 1050 | assign metric_B_24 = metric_49 + {{(M -SW -1){branch_B_24[SW]}}, branch_B_24} ; |
---|
| 1051 | assign metric_A_25 = metric_50 + {{(M -SW -1){branch_A_25[SW]}}, branch_A_25} ; |
---|
| 1052 | assign metric_B_25 = metric_51 + {{(M -SW -1){branch_B_25[SW]}}, branch_B_25} ; |
---|
| 1053 | assign metric_A_26 = metric_52 + {{(M -SW -1){branch_A_26[SW]}}, branch_A_26} ; |
---|
| 1054 | assign metric_B_26 = metric_53 + {{(M -SW -1){branch_B_26[SW]}}, branch_B_26} ; |
---|
| 1055 | assign metric_A_27 = metric_54 + {{(M -SW -1){branch_A_27[SW]}}, branch_A_27} ; |
---|
| 1056 | assign metric_B_27 = metric_55 + {{(M -SW -1){branch_B_27[SW]}}, branch_B_27} ; |
---|
| 1057 | assign metric_A_28 = metric_56 + {{(M -SW -1){branch_A_28[SW]}}, branch_A_28} ; |
---|
| 1058 | assign metric_B_28 = metric_57 + {{(M -SW -1){branch_B_28[SW]}}, branch_B_28} ; |
---|
| 1059 | assign metric_A_29 = metric_58 + {{(M -SW -1){branch_A_29[SW]}}, branch_A_29} ; |
---|
| 1060 | assign metric_B_29 = metric_59 + {{(M -SW -1){branch_B_29[SW]}}, branch_B_29} ; |
---|
| 1061 | assign metric_A_30 = metric_60 + {{(M -SW -1){branch_A_30[SW]}}, branch_A_30} ; |
---|
| 1062 | assign metric_B_30 = metric_61 + {{(M -SW -1){branch_B_30[SW]}}, branch_B_30} ; |
---|
| 1063 | assign metric_A_31 = metric_62 + {{(M -SW -1){branch_A_31[SW]}}, branch_A_31} ; |
---|
| 1064 | assign metric_B_31 = metric_63 + {{(M -SW -1){branch_B_31[SW]}}, branch_B_31} ; |
---|
| 1065 | assign metric_A_32 = metric_0 + {{(M -SW -1){branch_A_32[SW]}}, branch_A_32} ; |
---|
| 1066 | assign metric_B_32 = metric_1 + {{(M -SW -1){branch_B_32[SW]}}, branch_B_32} ; |
---|
| 1067 | assign metric_A_33 = metric_2 + {{(M -SW -1){branch_A_33[SW]}}, branch_A_33} ; |
---|
| 1068 | assign metric_B_33 = metric_3 + {{(M -SW -1){branch_B_33[SW]}}, branch_B_33} ; |
---|
| 1069 | assign metric_A_34 = metric_4 + {{(M -SW -1){branch_A_34[SW]}}, branch_A_34} ; |
---|
| 1070 | assign metric_B_34 = metric_5 + {{(M -SW -1){branch_B_34[SW]}}, branch_B_34} ; |
---|
| 1071 | assign metric_A_35 = metric_6 + {{(M -SW -1){branch_A_35[SW]}}, branch_A_35} ; |
---|
| 1072 | assign metric_B_35 = metric_7 + {{(M -SW -1){branch_B_35[SW]}}, branch_B_35} ; |
---|
| 1073 | assign metric_A_36 = metric_8 + {{(M -SW -1){branch_A_36[SW]}}, branch_A_36} ; |
---|
| 1074 | assign metric_B_36 = metric_9 + {{(M -SW -1){branch_B_36[SW]}}, branch_B_36} ; |
---|
| 1075 | assign metric_A_37 = metric_10 + {{(M -SW -1){branch_A_37[SW]}}, branch_A_37} ; |
---|
| 1076 | assign metric_B_37 = metric_11 + {{(M -SW -1){branch_B_37[SW]}}, branch_B_37} ; |
---|
| 1077 | assign metric_A_38 = metric_12 + {{(M -SW -1){branch_A_38[SW]}}, branch_A_38} ; |
---|
| 1078 | assign metric_B_38 = metric_13 + {{(M -SW -1){branch_B_38[SW]}}, branch_B_38} ; |
---|
| 1079 | assign metric_A_39 = metric_14 + {{(M -SW -1){branch_A_39[SW]}}, branch_A_39} ; |
---|
| 1080 | assign metric_B_39 = metric_15 + {{(M -SW -1){branch_B_39[SW]}}, branch_B_39} ; |
---|
| 1081 | assign metric_A_40 = metric_16 + {{(M -SW -1){branch_A_40[SW]}}, branch_A_40} ; |
---|
| 1082 | assign metric_B_40 = metric_17 + {{(M -SW -1){branch_B_40[SW]}}, branch_B_40} ; |
---|
| 1083 | assign metric_A_41 = metric_18 + {{(M -SW -1){branch_A_41[SW]}}, branch_A_41} ; |
---|
| 1084 | assign metric_B_41 = metric_19 + {{(M -SW -1){branch_B_41[SW]}}, branch_B_41} ; |
---|
| 1085 | assign metric_A_42 = metric_20 + {{(M -SW -1){branch_A_42[SW]}}, branch_A_42} ; |
---|
| 1086 | assign metric_B_42 = metric_21 + {{(M -SW -1){branch_B_42[SW]}}, branch_B_42} ; |
---|
| 1087 | assign metric_A_43 = metric_22 + {{(M -SW -1){branch_A_43[SW]}}, branch_A_43} ; |
---|
| 1088 | assign metric_B_43 = metric_23 + {{(M -SW -1){branch_B_43[SW]}}, branch_B_43} ; |
---|
| 1089 | assign metric_A_44 = metric_24 + {{(M -SW -1){branch_A_44[SW]}}, branch_A_44} ; |
---|
| 1090 | assign metric_B_44 = metric_25 + {{(M -SW -1){branch_B_44[SW]}}, branch_B_44} ; |
---|
| 1091 | assign metric_A_45 = metric_26 + {{(M -SW -1){branch_A_45[SW]}}, branch_A_45} ; |
---|
| 1092 | assign metric_B_45 = metric_27 + {{(M -SW -1){branch_B_45[SW]}}, branch_B_45} ; |
---|
| 1093 | assign metric_A_46 = metric_28 + {{(M -SW -1){branch_A_46[SW]}}, branch_A_46} ; |
---|
| 1094 | assign metric_B_46 = metric_29 + {{(M -SW -1){branch_B_46[SW]}}, branch_B_46} ; |
---|
| 1095 | assign metric_A_47 = metric_30 + {{(M -SW -1){branch_A_47[SW]}}, branch_A_47} ; |
---|
| 1096 | assign metric_B_47 = metric_31 + {{(M -SW -1){branch_B_47[SW]}}, branch_B_47} ; |
---|
| 1097 | assign metric_A_48 = metric_32 + {{(M -SW -1){branch_A_48[SW]}}, branch_A_48} ; |
---|
| 1098 | assign metric_B_48 = metric_33 + {{(M -SW -1){branch_B_48[SW]}}, branch_B_48} ; |
---|
| 1099 | assign metric_A_49 = metric_34 + {{(M -SW -1){branch_A_49[SW]}}, branch_A_49} ; |
---|
| 1100 | assign metric_B_49 = metric_35 + {{(M -SW -1){branch_B_49[SW]}}, branch_B_49} ; |
---|
| 1101 | assign metric_A_50 = metric_36 + {{(M -SW -1){branch_A_50[SW]}}, branch_A_50} ; |
---|
| 1102 | assign metric_B_50 = metric_37 + {{(M -SW -1){branch_B_50[SW]}}, branch_B_50} ; |
---|
| 1103 | assign metric_A_51 = metric_38 + {{(M -SW -1){branch_A_51[SW]}}, branch_A_51} ; |
---|
| 1104 | assign metric_B_51 = metric_39 + {{(M -SW -1){branch_B_51[SW]}}, branch_B_51} ; |
---|
| 1105 | assign metric_A_52 = metric_40 + {{(M -SW -1){branch_A_52[SW]}}, branch_A_52} ; |
---|
| 1106 | assign metric_B_52 = metric_41 + {{(M -SW -1){branch_B_52[SW]}}, branch_B_52} ; |
---|
| 1107 | assign metric_A_53 = metric_42 + {{(M -SW -1){branch_A_53[SW]}}, branch_A_53} ; |
---|
| 1108 | assign metric_B_53 = metric_43 + {{(M -SW -1){branch_B_53[SW]}}, branch_B_53} ; |
---|
| 1109 | assign metric_A_54 = metric_44 + {{(M -SW -1){branch_A_54[SW]}}, branch_A_54} ; |
---|
| 1110 | assign metric_B_54 = metric_45 + {{(M -SW -1){branch_B_54[SW]}}, branch_B_54} ; |
---|
| 1111 | assign metric_A_55 = metric_46 + {{(M -SW -1){branch_A_55[SW]}}, branch_A_55} ; |
---|
| 1112 | assign metric_B_55 = metric_47 + {{(M -SW -1){branch_B_55[SW]}}, branch_B_55} ; |
---|
| 1113 | assign metric_A_56 = metric_48 + {{(M -SW -1){branch_A_56[SW]}}, branch_A_56} ; |
---|
| 1114 | assign metric_B_56 = metric_49 + {{(M -SW -1){branch_B_56[SW]}}, branch_B_56} ; |
---|
| 1115 | assign metric_A_57 = metric_50 + {{(M -SW -1){branch_A_57[SW]}}, branch_A_57} ; |
---|
| 1116 | assign metric_B_57 = metric_51 + {{(M -SW -1){branch_B_57[SW]}}, branch_B_57} ; |
---|
| 1117 | assign metric_A_58 = metric_52 + {{(M -SW -1){branch_A_58[SW]}}, branch_A_58} ; |
---|
| 1118 | assign metric_B_58 = metric_53 + {{(M -SW -1){branch_B_58[SW]}}, branch_B_58} ; |
---|
| 1119 | assign metric_A_59 = metric_54 + {{(M -SW -1){branch_A_59[SW]}}, branch_A_59} ; |
---|
| 1120 | assign metric_B_59 = metric_55 + {{(M -SW -1){branch_B_59[SW]}}, branch_B_59} ; |
---|
| 1121 | assign metric_A_60 = metric_56 + {{(M -SW -1){branch_A_60[SW]}}, branch_A_60} ; |
---|
| 1122 | assign metric_B_60 = metric_57 + {{(M -SW -1){branch_B_60[SW]}}, branch_B_60} ; |
---|
| 1123 | assign metric_A_61 = metric_58 + {{(M -SW -1){branch_A_61[SW]}}, branch_A_61} ; |
---|
| 1124 | assign metric_B_61 = metric_59 + {{(M -SW -1){branch_B_61[SW]}}, branch_B_61} ; |
---|
| 1125 | assign metric_A_62 = metric_60 + {{(M -SW -1){branch_A_62[SW]}}, branch_A_62} ; |
---|
| 1126 | assign metric_B_62 = metric_61 + {{(M -SW -1){branch_B_62[SW]}}, branch_B_62} ; |
---|
| 1127 | assign metric_A_63 = metric_62 + {{(M -SW -1){branch_A_63[SW]}}, branch_A_63} ; |
---|
| 1128 | assign metric_B_63 = metric_63 + {{(M -SW -1){branch_B_63[SW]}}, branch_B_63} ; |
---|
| 1129 | |
---|
| 1130 | assign diff_0 = metric_A_0 - metric_B_0 ; |
---|
| 1131 | assign diff_1 = metric_A_1 - metric_B_1 ; |
---|
| 1132 | assign diff_2 = metric_A_2 - metric_B_2 ; |
---|
| 1133 | assign diff_3 = metric_A_3 - metric_B_3 ; |
---|
| 1134 | assign diff_4 = metric_A_4 - metric_B_4 ; |
---|
| 1135 | assign diff_5 = metric_A_5 - metric_B_5 ; |
---|
| 1136 | assign diff_6 = metric_A_6 - metric_B_6 ; |
---|
| 1137 | assign diff_7 = metric_A_7 - metric_B_7 ; |
---|
| 1138 | assign diff_8 = metric_A_8 - metric_B_8 ; |
---|
| 1139 | assign diff_9 = metric_A_9 - metric_B_9 ; |
---|
| 1140 | assign diff_10 = metric_A_10 - metric_B_10 ; |
---|
| 1141 | assign diff_11 = metric_A_11 - metric_B_11 ; |
---|
| 1142 | assign diff_12 = metric_A_12 - metric_B_12 ; |
---|
| 1143 | assign diff_13 = metric_A_13 - metric_B_13 ; |
---|
| 1144 | assign diff_14 = metric_A_14 - metric_B_14 ; |
---|
| 1145 | assign diff_15 = metric_A_15 - metric_B_15 ; |
---|
| 1146 | assign diff_16 = metric_A_16 - metric_B_16 ; |
---|
| 1147 | assign diff_17 = metric_A_17 - metric_B_17 ; |
---|
| 1148 | assign diff_18 = metric_A_18 - metric_B_18 ; |
---|
| 1149 | assign diff_19 = metric_A_19 - metric_B_19 ; |
---|
| 1150 | assign diff_20 = metric_A_20 - metric_B_20 ; |
---|
| 1151 | assign diff_21 = metric_A_21 - metric_B_21 ; |
---|
| 1152 | assign diff_22 = metric_A_22 - metric_B_22 ; |
---|
| 1153 | assign diff_23 = metric_A_23 - metric_B_23 ; |
---|
| 1154 | assign diff_24 = metric_A_24 - metric_B_24 ; |
---|
| 1155 | assign diff_25 = metric_A_25 - metric_B_25 ; |
---|
| 1156 | assign diff_26 = metric_A_26 - metric_B_26 ; |
---|
| 1157 | assign diff_27 = metric_A_27 - metric_B_27 ; |
---|
| 1158 | assign diff_28 = metric_A_28 - metric_B_28 ; |
---|
| 1159 | assign diff_29 = metric_A_29 - metric_B_29 ; |
---|
| 1160 | assign diff_30 = metric_A_30 - metric_B_30 ; |
---|
| 1161 | assign diff_31 = metric_A_31 - metric_B_31 ; |
---|
| 1162 | assign diff_32 = metric_A_32 - metric_B_32 ; |
---|
| 1163 | assign diff_33 = metric_A_33 - metric_B_33 ; |
---|
| 1164 | assign diff_34 = metric_A_34 - metric_B_34 ; |
---|
| 1165 | assign diff_35 = metric_A_35 - metric_B_35 ; |
---|
| 1166 | assign diff_36 = metric_A_36 - metric_B_36 ; |
---|
| 1167 | assign diff_37 = metric_A_37 - metric_B_37 ; |
---|
| 1168 | assign diff_38 = metric_A_38 - metric_B_38 ; |
---|
| 1169 | assign diff_39 = metric_A_39 - metric_B_39 ; |
---|
| 1170 | assign diff_40 = metric_A_40 - metric_B_40 ; |
---|
| 1171 | assign diff_41 = metric_A_41 - metric_B_41 ; |
---|
| 1172 | assign diff_42 = metric_A_42 - metric_B_42 ; |
---|
| 1173 | assign diff_43 = metric_A_43 - metric_B_43 ; |
---|
| 1174 | assign diff_44 = metric_A_44 - metric_B_44 ; |
---|
| 1175 | assign diff_45 = metric_A_45 - metric_B_45 ; |
---|
| 1176 | assign diff_46 = metric_A_46 - metric_B_46 ; |
---|
| 1177 | assign diff_47 = metric_A_47 - metric_B_47 ; |
---|
| 1178 | assign diff_48 = metric_A_48 - metric_B_48 ; |
---|
| 1179 | assign diff_49 = metric_A_49 - metric_B_49 ; |
---|
| 1180 | assign diff_50 = metric_A_50 - metric_B_50 ; |
---|
| 1181 | assign diff_51 = metric_A_51 - metric_B_51 ; |
---|
| 1182 | assign diff_52 = metric_A_52 - metric_B_52 ; |
---|
| 1183 | assign diff_53 = metric_A_53 - metric_B_53 ; |
---|
| 1184 | assign diff_54 = metric_A_54 - metric_B_54 ; |
---|
| 1185 | assign diff_55 = metric_A_55 - metric_B_55 ; |
---|
| 1186 | assign diff_56 = metric_A_56 - metric_B_56 ; |
---|
| 1187 | assign diff_57 = metric_A_57 - metric_B_57 ; |
---|
| 1188 | assign diff_58 = metric_A_58 - metric_B_58 ; |
---|
| 1189 | assign diff_59 = metric_A_59 - metric_B_59 ; |
---|
| 1190 | assign diff_60 = metric_A_60 - metric_B_60 ; |
---|
| 1191 | assign diff_61 = metric_A_61 - metric_B_61 ; |
---|
| 1192 | assign diff_62 = metric_A_62 - metric_B_62 ; |
---|
| 1193 | assign diff_63 = metric_A_63 - metric_B_63 ; |
---|
| 1194 | |
---|
| 1195 | assign metric_next_0 = diff_0 [M -1] ? metric_B_0 : metric_A_0 ; |
---|
| 1196 | assign metric_next_1 = diff_1 [M -1] ? metric_B_1 : metric_A_1 ; |
---|
| 1197 | assign metric_next_2 = diff_2 [M -1] ? metric_B_2 : metric_A_2 ; |
---|
| 1198 | assign metric_next_3 = diff_3 [M -1] ? metric_B_3 : metric_A_3 ; |
---|
| 1199 | assign metric_next_4 = diff_4 [M -1] ? metric_B_4 : metric_A_4 ; |
---|
| 1200 | assign metric_next_5 = diff_5 [M -1] ? metric_B_5 : metric_A_5 ; |
---|
| 1201 | assign metric_next_6 = diff_6 [M -1] ? metric_B_6 : metric_A_6 ; |
---|
| 1202 | assign metric_next_7 = diff_7 [M -1] ? metric_B_7 : metric_A_7 ; |
---|
| 1203 | assign metric_next_8 = diff_8 [M -1] ? metric_B_8 : metric_A_8 ; |
---|
| 1204 | assign metric_next_9 = diff_9 [M -1] ? metric_B_9 : metric_A_9 ; |
---|
| 1205 | assign metric_next_10 = diff_10 [M -1] ? metric_B_10 : metric_A_10 ; |
---|
| 1206 | assign metric_next_11 = diff_11 [M -1] ? metric_B_11 : metric_A_11 ; |
---|
| 1207 | assign metric_next_12 = diff_12 [M -1] ? metric_B_12 : metric_A_12 ; |
---|
| 1208 | assign metric_next_13 = diff_13 [M -1] ? metric_B_13 : metric_A_13 ; |
---|
| 1209 | assign metric_next_14 = diff_14 [M -1] ? metric_B_14 : metric_A_14 ; |
---|
| 1210 | assign metric_next_15 = diff_15 [M -1] ? metric_B_15 : metric_A_15 ; |
---|
| 1211 | assign metric_next_16 = diff_16 [M -1] ? metric_B_16 : metric_A_16 ; |
---|
| 1212 | assign metric_next_17 = diff_17 [M -1] ? metric_B_17 : metric_A_17 ; |
---|
| 1213 | assign metric_next_18 = diff_18 [M -1] ? metric_B_18 : metric_A_18 ; |
---|
| 1214 | assign metric_next_19 = diff_19 [M -1] ? metric_B_19 : metric_A_19 ; |
---|
| 1215 | assign metric_next_20 = diff_20 [M -1] ? metric_B_20 : metric_A_20 ; |
---|
| 1216 | assign metric_next_21 = diff_21 [M -1] ? metric_B_21 : metric_A_21 ; |
---|
| 1217 | assign metric_next_22 = diff_22 [M -1] ? metric_B_22 : metric_A_22 ; |
---|
| 1218 | assign metric_next_23 = diff_23 [M -1] ? metric_B_23 : metric_A_23 ; |
---|
| 1219 | assign metric_next_24 = diff_24 [M -1] ? metric_B_24 : metric_A_24 ; |
---|
| 1220 | assign metric_next_25 = diff_25 [M -1] ? metric_B_25 : metric_A_25 ; |
---|
| 1221 | assign metric_next_26 = diff_26 [M -1] ? metric_B_26 : metric_A_26 ; |
---|
| 1222 | assign metric_next_27 = diff_27 [M -1] ? metric_B_27 : metric_A_27 ; |
---|
| 1223 | assign metric_next_28 = diff_28 [M -1] ? metric_B_28 : metric_A_28 ; |
---|
| 1224 | assign metric_next_29 = diff_29 [M -1] ? metric_B_29 : metric_A_29 ; |
---|
| 1225 | assign metric_next_30 = diff_30 [M -1] ? metric_B_30 : metric_A_30 ; |
---|
| 1226 | assign metric_next_31 = diff_31 [M -1] ? metric_B_31 : metric_A_31 ; |
---|
| 1227 | assign metric_next_32 = diff_32 [M -1] ? metric_B_32 : metric_A_32 ; |
---|
| 1228 | assign metric_next_33 = diff_33 [M -1] ? metric_B_33 : metric_A_33 ; |
---|
| 1229 | assign metric_next_34 = diff_34 [M -1] ? metric_B_34 : metric_A_34 ; |
---|
| 1230 | assign metric_next_35 = diff_35 [M -1] ? metric_B_35 : metric_A_35 ; |
---|
| 1231 | assign metric_next_36 = diff_36 [M -1] ? metric_B_36 : metric_A_36 ; |
---|
| 1232 | assign metric_next_37 = diff_37 [M -1] ? metric_B_37 : metric_A_37 ; |
---|
| 1233 | assign metric_next_38 = diff_38 [M -1] ? metric_B_38 : metric_A_38 ; |
---|
| 1234 | assign metric_next_39 = diff_39 [M -1] ? metric_B_39 : metric_A_39 ; |
---|
| 1235 | assign metric_next_40 = diff_40 [M -1] ? metric_B_40 : metric_A_40 ; |
---|
| 1236 | assign metric_next_41 = diff_41 [M -1] ? metric_B_41 : metric_A_41 ; |
---|
| 1237 | assign metric_next_42 = diff_42 [M -1] ? metric_B_42 : metric_A_42 ; |
---|
| 1238 | assign metric_next_43 = diff_43 [M -1] ? metric_B_43 : metric_A_43 ; |
---|
| 1239 | assign metric_next_44 = diff_44 [M -1] ? metric_B_44 : metric_A_44 ; |
---|
| 1240 | assign metric_next_45 = diff_45 [M -1] ? metric_B_45 : metric_A_45 ; |
---|
| 1241 | assign metric_next_46 = diff_46 [M -1] ? metric_B_46 : metric_A_46 ; |
---|
| 1242 | assign metric_next_47 = diff_47 [M -1] ? metric_B_47 : metric_A_47 ; |
---|
| 1243 | assign metric_next_48 = diff_48 [M -1] ? metric_B_48 : metric_A_48 ; |
---|
| 1244 | assign metric_next_49 = diff_49 [M -1] ? metric_B_49 : metric_A_49 ; |
---|
| 1245 | assign metric_next_50 = diff_50 [M -1] ? metric_B_50 : metric_A_50 ; |
---|
| 1246 | assign metric_next_51 = diff_51 [M -1] ? metric_B_51 : metric_A_51 ; |
---|
| 1247 | assign metric_next_52 = diff_52 [M -1] ? metric_B_52 : metric_A_52 ; |
---|
| 1248 | assign metric_next_53 = diff_53 [M -1] ? metric_B_53 : metric_A_53 ; |
---|
| 1249 | assign metric_next_54 = diff_54 [M -1] ? metric_B_54 : metric_A_54 ; |
---|
| 1250 | assign metric_next_55 = diff_55 [M -1] ? metric_B_55 : metric_A_55 ; |
---|
| 1251 | assign metric_next_56 = diff_56 [M -1] ? metric_B_56 : metric_A_56 ; |
---|
| 1252 | assign metric_next_57 = diff_57 [M -1] ? metric_B_57 : metric_A_57 ; |
---|
| 1253 | assign metric_next_58 = diff_58 [M -1] ? metric_B_58 : metric_A_58 ; |
---|
| 1254 | assign metric_next_59 = diff_59 [M -1] ? metric_B_59 : metric_A_59 ; |
---|
| 1255 | assign metric_next_60 = diff_60 [M -1] ? metric_B_60 : metric_A_60 ; |
---|
| 1256 | assign metric_next_61 = diff_61 [M -1] ? metric_B_61 : metric_A_61 ; |
---|
| 1257 | assign metric_next_62 = diff_62 [M -1] ? metric_B_62 : metric_A_62 ; |
---|
| 1258 | assign metric_next_63 = diff_63 [M -1] ? metric_B_63 : metric_A_63 ; |
---|
| 1259 | |
---|
[2128] | 1260 | always @ (posedge clk) |
---|
[2088] | 1261 | if (~nrst) |
---|
| 1262 | begin |
---|
| 1263 | metric_0 <= 10 ; |
---|
| 1264 | metric_1 <= 0 ; |
---|
| 1265 | metric_2 <= 0 ; |
---|
| 1266 | metric_3 <= 0 ; |
---|
| 1267 | metric_4 <= 0 ; |
---|
| 1268 | metric_5 <= 0 ; |
---|
| 1269 | metric_6 <= 0 ; |
---|
| 1270 | metric_7 <= 0 ; |
---|
| 1271 | metric_8 <= 0 ; |
---|
| 1272 | metric_9 <= 0 ; |
---|
| 1273 | metric_10 <= 0 ; |
---|
| 1274 | metric_11 <= 0 ; |
---|
| 1275 | metric_12 <= 0 ; |
---|
| 1276 | metric_13 <= 0 ; |
---|
| 1277 | metric_14 <= 0 ; |
---|
| 1278 | metric_15 <= 0 ; |
---|
| 1279 | metric_16 <= 0 ; |
---|
| 1280 | metric_17 <= 0 ; |
---|
| 1281 | metric_18 <= 0 ; |
---|
| 1282 | metric_19 <= 0 ; |
---|
| 1283 | metric_20 <= 0 ; |
---|
| 1284 | metric_21 <= 0 ; |
---|
| 1285 | metric_22 <= 0 ; |
---|
| 1286 | metric_23 <= 0 ; |
---|
| 1287 | metric_24 <= 0 ; |
---|
| 1288 | metric_25 <= 0 ; |
---|
| 1289 | metric_26 <= 0 ; |
---|
| 1290 | metric_27 <= 0 ; |
---|
| 1291 | metric_28 <= 0 ; |
---|
| 1292 | metric_29 <= 0 ; |
---|
| 1293 | metric_30 <= 0 ; |
---|
| 1294 | metric_31 <= 0 ; |
---|
| 1295 | metric_32 <= 0 ; |
---|
| 1296 | metric_33 <= 0 ; |
---|
| 1297 | metric_34 <= 0 ; |
---|
| 1298 | metric_35 <= 0 ; |
---|
| 1299 | metric_36 <= 0 ; |
---|
| 1300 | metric_37 <= 0 ; |
---|
| 1301 | metric_38 <= 0 ; |
---|
| 1302 | metric_39 <= 0 ; |
---|
| 1303 | metric_40 <= 0 ; |
---|
| 1304 | metric_41 <= 0 ; |
---|
| 1305 | metric_42 <= 0 ; |
---|
| 1306 | metric_43 <= 0 ; |
---|
| 1307 | metric_44 <= 0 ; |
---|
| 1308 | metric_45 <= 0 ; |
---|
| 1309 | metric_46 <= 0 ; |
---|
| 1310 | metric_47 <= 0 ; |
---|
| 1311 | metric_48 <= 0 ; |
---|
| 1312 | metric_49 <= 0 ; |
---|
| 1313 | metric_50 <= 0 ; |
---|
| 1314 | metric_51 <= 0 ; |
---|
| 1315 | metric_52 <= 0 ; |
---|
| 1316 | metric_53 <= 0 ; |
---|
| 1317 | metric_54 <= 0 ; |
---|
| 1318 | metric_55 <= 0 ; |
---|
| 1319 | metric_56 <= 0 ; |
---|
| 1320 | metric_57 <= 0 ; |
---|
| 1321 | metric_58 <= 0 ; |
---|
| 1322 | metric_59 <= 0 ; |
---|
| 1323 | metric_60 <= 0 ; |
---|
| 1324 | metric_61 <= 0 ; |
---|
| 1325 | metric_62 <= 0 ; |
---|
| 1326 | metric_63 <= 0 ; |
---|
| 1327 | end |
---|
| 1328 | else if (packet_start) |
---|
| 1329 | begin |
---|
| 1330 | metric_0 <= 10 ; |
---|
| 1331 | metric_1 <= 0 ; |
---|
| 1332 | metric_2 <= 0 ; |
---|
| 1333 | metric_3 <= 0 ; |
---|
| 1334 | metric_4 <= 0 ; |
---|
| 1335 | metric_5 <= 0 ; |
---|
| 1336 | metric_6 <= 0 ; |
---|
| 1337 | metric_7 <= 0 ; |
---|
| 1338 | metric_8 <= 0 ; |
---|
| 1339 | metric_9 <= 0 ; |
---|
| 1340 | metric_10 <= 0 ; |
---|
| 1341 | metric_11 <= 0 ; |
---|
| 1342 | metric_12 <= 0 ; |
---|
| 1343 | metric_13 <= 0 ; |
---|
| 1344 | metric_14 <= 0 ; |
---|
| 1345 | metric_15 <= 0 ; |
---|
| 1346 | metric_16 <= 0 ; |
---|
| 1347 | metric_17 <= 0 ; |
---|
| 1348 | metric_18 <= 0 ; |
---|
| 1349 | metric_19 <= 0 ; |
---|
| 1350 | metric_20 <= 0 ; |
---|
| 1351 | metric_21 <= 0 ; |
---|
| 1352 | metric_22 <= 0 ; |
---|
| 1353 | metric_23 <= 0 ; |
---|
| 1354 | metric_24 <= 0 ; |
---|
| 1355 | metric_25 <= 0 ; |
---|
| 1356 | metric_26 <= 0 ; |
---|
| 1357 | metric_27 <= 0 ; |
---|
| 1358 | metric_28 <= 0 ; |
---|
| 1359 | metric_29 <= 0 ; |
---|
| 1360 | metric_30 <= 0 ; |
---|
| 1361 | metric_31 <= 0 ; |
---|
| 1362 | metric_32 <= 0 ; |
---|
| 1363 | metric_33 <= 0 ; |
---|
| 1364 | metric_34 <= 0 ; |
---|
| 1365 | metric_35 <= 0 ; |
---|
| 1366 | metric_36 <= 0 ; |
---|
| 1367 | metric_37 <= 0 ; |
---|
| 1368 | metric_38 <= 0 ; |
---|
| 1369 | metric_39 <= 0 ; |
---|
| 1370 | metric_40 <= 0 ; |
---|
| 1371 | metric_41 <= 0 ; |
---|
| 1372 | metric_42 <= 0 ; |
---|
| 1373 | metric_43 <= 0 ; |
---|
| 1374 | metric_44 <= 0 ; |
---|
| 1375 | metric_45 <= 0 ; |
---|
| 1376 | metric_46 <= 0 ; |
---|
| 1377 | metric_47 <= 0 ; |
---|
| 1378 | metric_48 <= 0 ; |
---|
| 1379 | metric_49 <= 0 ; |
---|
| 1380 | metric_50 <= 0 ; |
---|
| 1381 | metric_51 <= 0 ; |
---|
| 1382 | metric_52 <= 0 ; |
---|
| 1383 | metric_53 <= 0 ; |
---|
| 1384 | metric_54 <= 0 ; |
---|
| 1385 | metric_55 <= 0 ; |
---|
| 1386 | metric_56 <= 0 ; |
---|
| 1387 | metric_57 <= 0 ; |
---|
| 1388 | metric_58 <= 0 ; |
---|
| 1389 | metric_59 <= 0 ; |
---|
| 1390 | metric_60 <= 0 ; |
---|
| 1391 | metric_61 <= 0 ; |
---|
| 1392 | metric_62 <= 0 ; |
---|
| 1393 | metric_63 <= 0 ; |
---|
| 1394 | end |
---|
| 1395 | else if (dv_in_gate) |
---|
| 1396 | begin |
---|
| 1397 | // update metric |
---|
| 1398 | metric_0 <= metric_next_0 ; |
---|
| 1399 | metric_1 <= metric_next_1 ; |
---|
| 1400 | metric_2 <= metric_next_2 ; |
---|
| 1401 | metric_3 <= metric_next_3 ; |
---|
| 1402 | metric_4 <= metric_next_4 ; |
---|
| 1403 | metric_5 <= metric_next_5 ; |
---|
| 1404 | metric_6 <= metric_next_6 ; |
---|
| 1405 | metric_7 <= metric_next_7 ; |
---|
| 1406 | metric_8 <= metric_next_8 ; |
---|
| 1407 | metric_9 <= metric_next_9 ; |
---|
| 1408 | metric_10 <= metric_next_10; |
---|
| 1409 | metric_11 <= metric_next_11; |
---|
| 1410 | metric_12 <= metric_next_12; |
---|
| 1411 | metric_13 <= metric_next_13; |
---|
| 1412 | metric_14 <= metric_next_14; |
---|
| 1413 | metric_15 <= metric_next_15; |
---|
| 1414 | metric_16 <= metric_next_16 ; |
---|
| 1415 | metric_17 <= metric_next_17; |
---|
| 1416 | metric_18 <= metric_next_18; |
---|
| 1417 | metric_19 <= metric_next_19; |
---|
| 1418 | metric_20 <= metric_next_20; |
---|
| 1419 | metric_21 <= metric_next_21; |
---|
| 1420 | metric_22 <= metric_next_22; |
---|
| 1421 | metric_23 <= metric_next_23; |
---|
| 1422 | metric_24 <= metric_next_24; |
---|
| 1423 | metric_25 <= metric_next_25; |
---|
| 1424 | metric_26 <= metric_next_26; |
---|
| 1425 | metric_27 <= metric_next_27; |
---|
| 1426 | metric_28 <= metric_next_28; |
---|
| 1427 | metric_29 <= metric_next_29; |
---|
| 1428 | metric_30 <= metric_next_30; |
---|
| 1429 | metric_31 <= metric_next_31; |
---|
| 1430 | metric_32 <= metric_next_32 ; |
---|
| 1431 | metric_33 <= metric_next_33; |
---|
| 1432 | metric_34 <= metric_next_34; |
---|
| 1433 | metric_35 <= metric_next_35; |
---|
| 1434 | metric_36 <= metric_next_36; |
---|
| 1435 | metric_37 <= metric_next_37; |
---|
| 1436 | metric_38 <= metric_next_38; |
---|
| 1437 | metric_39 <= metric_next_39; |
---|
| 1438 | metric_40 <= metric_next_40; |
---|
| 1439 | metric_41 <= metric_next_41; |
---|
| 1440 | metric_42 <= metric_next_42; |
---|
| 1441 | metric_43 <= metric_next_43; |
---|
| 1442 | metric_44 <= metric_next_44; |
---|
| 1443 | metric_45 <= metric_next_45; |
---|
| 1444 | metric_46 <= metric_next_46; |
---|
| 1445 | metric_47 <= metric_next_47; |
---|
| 1446 | metric_48 <= metric_next_48 ; |
---|
| 1447 | metric_49 <= metric_next_49; |
---|
| 1448 | metric_50 <= metric_next_50; |
---|
| 1449 | metric_51 <= metric_next_51; |
---|
| 1450 | metric_52 <= metric_next_52; |
---|
| 1451 | metric_53 <= metric_next_53; |
---|
| 1452 | metric_54 <= metric_next_54; |
---|
| 1453 | metric_55 <= metric_next_55; |
---|
| 1454 | metric_56 <= metric_next_56; |
---|
| 1455 | metric_57 <= metric_next_57; |
---|
| 1456 | metric_58 <= metric_next_58; |
---|
| 1457 | metric_59 <= metric_next_59; |
---|
| 1458 | metric_60 <= metric_next_60; |
---|
| 1459 | metric_61 <= metric_next_61; |
---|
| 1460 | metric_62 <= metric_next_62; |
---|
| 1461 | metric_63 <= metric_next_63; |
---|
| 1462 | end |
---|
| 1463 | |
---|
[2128] | 1464 | always @ (posedge clk) |
---|
[2088] | 1465 | if (~nrst) |
---|
| 1466 | wptr <= 0 ; |
---|
| 1467 | else if (packet_start) |
---|
| 1468 | wptr <= 0 ; |
---|
| 1469 | else if (dv_in_gate) |
---|
| 1470 | wptr <= wptr + 1 ; |
---|
| 1471 | |
---|
[2128] | 1472 | always @ (posedge clk) |
---|
[2088] | 1473 | if (~nrst) |
---|
| 1474 | last_wptr <= 1'b0 ; |
---|
| 1475 | else if (dv_in_gate) |
---|
| 1476 | last_wptr <= wptr ; |
---|
| 1477 | |
---|
| 1478 | always @ (posedge clk) |
---|
| 1479 | if(dv_in_gate) |
---|
| 1480 | begin |
---|
| 1481 | // update transition |
---|
| 1482 | tran_state_0 [wptr] <= diff_0 [M -1] ; |
---|
| 1483 | tran_state_1 [wptr] <= diff_1 [M -1] ; |
---|
| 1484 | tran_state_2 [wptr] <= diff_2 [M -1] ; |
---|
| 1485 | tran_state_3 [wptr] <= diff_3 [M -1] ; |
---|
| 1486 | tran_state_4 [wptr] <= diff_4 [M -1] ; |
---|
| 1487 | tran_state_5 [wptr] <= diff_5 [M -1] ; |
---|
| 1488 | tran_state_6 [wptr] <= diff_6 [M -1] ; |
---|
| 1489 | tran_state_7 [wptr] <= diff_7 [M -1] ; |
---|
| 1490 | tran_state_8 [wptr] <= diff_8 [M -1] ; |
---|
| 1491 | tran_state_9 [wptr] <= diff_9 [M -1] ; |
---|
| 1492 | tran_state_10 [wptr] <= diff_10 [M -1] ; |
---|
| 1493 | tran_state_11 [wptr] <= diff_11 [M -1] ; |
---|
| 1494 | tran_state_12 [wptr] <= diff_12 [M -1] ; |
---|
| 1495 | tran_state_13 [wptr] <= diff_13 [M -1] ; |
---|
| 1496 | tran_state_14 [wptr] <= diff_14 [M -1] ; |
---|
| 1497 | tran_state_15 [wptr] <= diff_15 [M -1] ; |
---|
| 1498 | tran_state_16 [wptr] <= diff_16 [M -1] ; |
---|
| 1499 | tran_state_17 [wptr] <= diff_17 [M -1] ; |
---|
| 1500 | tran_state_18 [wptr] <= diff_18 [M -1] ; |
---|
| 1501 | tran_state_19 [wptr] <= diff_19 [M -1] ; |
---|
| 1502 | tran_state_20 [wptr] <= diff_20 [M -1] ; |
---|
| 1503 | tran_state_21 [wptr] <= diff_21 [M -1] ; |
---|
| 1504 | tran_state_22 [wptr] <= diff_22 [M -1] ; |
---|
| 1505 | tran_state_23 [wptr] <= diff_23 [M -1] ; |
---|
| 1506 | tran_state_24 [wptr] <= diff_24 [M -1] ; |
---|
| 1507 | tran_state_25 [wptr] <= diff_25 [M -1] ; |
---|
| 1508 | tran_state_26 [wptr] <= diff_26 [M -1] ; |
---|
| 1509 | tran_state_27 [wptr] <= diff_27 [M -1] ; |
---|
| 1510 | tran_state_28 [wptr] <= diff_28 [M -1] ; |
---|
| 1511 | tran_state_29 [wptr] <= diff_29 [M -1] ; |
---|
| 1512 | tran_state_30 [wptr] <= diff_30 [M -1] ; |
---|
| 1513 | tran_state_31 [wptr] <= diff_31 [M -1] ; |
---|
| 1514 | tran_state_32 [wptr] <= diff_32 [M -1] ; |
---|
| 1515 | tran_state_33 [wptr] <= diff_33 [M -1] ; |
---|
| 1516 | tran_state_34 [wptr] <= diff_34 [M -1] ; |
---|
| 1517 | tran_state_35 [wptr] <= diff_35 [M -1] ; |
---|
| 1518 | tran_state_36 [wptr] <= diff_36 [M -1] ; |
---|
| 1519 | tran_state_37 [wptr] <= diff_37 [M -1] ; |
---|
| 1520 | tran_state_38 [wptr] <= diff_38 [M -1] ; |
---|
| 1521 | tran_state_39 [wptr] <= diff_39 [M -1] ; |
---|
| 1522 | tran_state_40 [wptr] <= diff_40 [M -1] ; |
---|
| 1523 | tran_state_41 [wptr] <= diff_41 [M -1] ; |
---|
| 1524 | tran_state_42 [wptr] <= diff_42 [M -1] ; |
---|
| 1525 | tran_state_43 [wptr] <= diff_43 [M -1] ; |
---|
| 1526 | tran_state_44 [wptr] <= diff_44 [M -1] ; |
---|
| 1527 | tran_state_45 [wptr] <= diff_45 [M -1] ; |
---|
| 1528 | tran_state_46 [wptr] <= diff_46 [M -1] ; |
---|
| 1529 | tran_state_47 [wptr] <= diff_47 [M -1] ; |
---|
| 1530 | tran_state_48 [wptr] <= diff_48 [M -1] ; |
---|
| 1531 | tran_state_49 [wptr] <= diff_49 [M -1] ; |
---|
| 1532 | tran_state_50 [wptr] <= diff_50 [M -1] ; |
---|
| 1533 | tran_state_51 [wptr] <= diff_51 [M -1] ; |
---|
| 1534 | tran_state_52 [wptr] <= diff_52 [M -1] ; |
---|
| 1535 | tran_state_53 [wptr] <= diff_53 [M -1] ; |
---|
| 1536 | tran_state_54 [wptr] <= diff_54 [M -1] ; |
---|
| 1537 | tran_state_55 [wptr] <= diff_55 [M -1] ; |
---|
| 1538 | tran_state_56 [wptr] <= diff_56 [M -1] ; |
---|
| 1539 | tran_state_57 [wptr] <= diff_57 [M -1] ; |
---|
| 1540 | tran_state_58 [wptr] <= diff_58 [M -1] ; |
---|
| 1541 | tran_state_59 [wptr] <= diff_59 [M -1] ; |
---|
| 1542 | tran_state_60 [wptr] <= diff_60 [M -1] ; |
---|
| 1543 | tran_state_61 [wptr] <= diff_61 [M -1] ; |
---|
| 1544 | tran_state_62 [wptr] <= diff_62 [M -1] ; |
---|
| 1545 | tran_state_63 [wptr] <= diff_63 [M -1] ; |
---|
| 1546 | end |
---|
| 1547 | |
---|
[4394] | 1548 | reg early_trace1_d0, early_trace2_d0; |
---|
| 1549 | wire early_trace1_pos, early_trace2_pos; |
---|
[2184] | 1550 | |
---|
| 1551 | always @ (posedge clk) |
---|
| 1552 | begin |
---|
[4394] | 1553 | early_trace1_d0 <= early_trace1; |
---|
| 1554 | early_trace2_d0 <= early_trace2; |
---|
[2184] | 1555 | end |
---|
| 1556 | |
---|
[4394] | 1557 | assign early_trace1_pos = (early_trace1 & ~early_trace1_d0); |
---|
| 1558 | assign early_trace2_pos = (early_trace2 & ~early_trace2_d0); |
---|
[2184] | 1559 | |
---|
[2128] | 1560 | always @ (posedge clk) |
---|
[2088] | 1561 | if (~nrst) |
---|
| 1562 | begin |
---|
[4394] | 1563 | early_trace1_en <= 1'b0; |
---|
| 1564 | early_trace2_en <= 1'b0; |
---|
[2088] | 1565 | trace <= 1'b0 ; |
---|
| 1566 | cnt <= 0 ; |
---|
| 1567 | trace_start_wptr <= 0 ; |
---|
| 1568 | end |
---|
| 1569 | else if (packet_start) |
---|
| 1570 | begin |
---|
[4394] | 1571 | early_trace1_en <= 1'b0; |
---|
| 1572 | early_trace2_en <= 1'b0; |
---|
[2088] | 1573 | trace <= 1'b0 ; |
---|
| 1574 | cnt <= 0 ; |
---|
| 1575 | end |
---|
| 1576 | else if (dv_in_gate) |
---|
| 1577 | begin |
---|
| 1578 | if (cnt == L-1) |
---|
| 1579 | begin |
---|
[4394] | 1580 | early_trace1_en <= 1'b0; |
---|
| 1581 | early_trace2_en <= 1'b0; |
---|
[2088] | 1582 | trace <= 1'b1 ; |
---|
| 1583 | trace_start_wptr <= wptr ; |
---|
| 1584 | cnt <= C ; |
---|
| 1585 | end |
---|
[4394] | 1586 | else if (early_trace1_pos) |
---|
[2088] | 1587 | begin |
---|
[4394] | 1588 | early_trace1_en <= 1'b1; |
---|
| 1589 | early_trace2_en <= 1'b0; |
---|
[2184] | 1590 | trace <= 1'b1 ; |
---|
| 1591 | trace_start_wptr <= wptr ; |
---|
[4394] | 1592 | cnt <= C_EARLY1 ; |
---|
[2184] | 1593 | end |
---|
[4394] | 1594 | else if (early_trace2_pos) |
---|
| 1595 | begin |
---|
| 1596 | early_trace1_en <= 1'b0; |
---|
| 1597 | early_trace2_en <= 1'b1; |
---|
| 1598 | trace <= 1'b1 ; |
---|
| 1599 | trace_start_wptr <= wptr ; |
---|
| 1600 | cnt <= C_EARLY2 ; |
---|
| 1601 | end |
---|
[2184] | 1602 | else |
---|
| 1603 | begin |
---|
[4394] | 1604 | early_trace1_en <= 1'b0; |
---|
| 1605 | early_trace2_en <= 1'b0; |
---|
[2088] | 1606 | trace <= 1'b0 ; |
---|
| 1607 | cnt <= cnt + 1 ; |
---|
| 1608 | end |
---|
| 1609 | end |
---|
| 1610 | else if (trace2) |
---|
| 1611 | trace_start_wptr <= last_wptr ; |
---|
| 1612 | else |
---|
| 1613 | trace <= 1'b0 ; |
---|
| 1614 | |
---|
[2128] | 1615 | always @ (posedge clk) |
---|
[2088] | 1616 | if (~nrst) |
---|
| 1617 | begin |
---|
| 1618 | flush_en <= 1'b0 ; |
---|
| 1619 | flush_cnt <= 0 ; |
---|
| 1620 | end |
---|
| 1621 | else if (packet_end) |
---|
| 1622 | begin |
---|
| 1623 | flush_en <= 1 ; |
---|
| 1624 | flush_cnt <= 0 ; |
---|
| 1625 | end |
---|
| 1626 | else if (flush_en) |
---|
| 1627 | begin |
---|
| 1628 | if (flush_cnt == 63) |
---|
| 1629 | flush_en <= 1'b0 ; |
---|
| 1630 | else |
---|
| 1631 | flush_cnt <= flush_cnt + 1 ; |
---|
| 1632 | end |
---|
| 1633 | |
---|
| 1634 | assign flush = flush_cnt == 60 ; |
---|
| 1635 | |
---|
[2128] | 1636 | always @ (posedge clk) |
---|
[2088] | 1637 | if (~nrst) |
---|
| 1638 | done_i <= 1'b0 ; |
---|
| 1639 | else if (packet_start) |
---|
| 1640 | done_i <= 1'b0 ; |
---|
| 1641 | //else if (packet_end && cnt == L-1) |
---|
| 1642 | else if (trace2 & last_cnt_next[LW-1]) |
---|
| 1643 | done_i <= 1'b1 ; |
---|
| 1644 | else if (last_trace_d3) |
---|
| 1645 | done_i <= 1'b1 ; |
---|
| 1646 | |
---|
| 1647 | |
---|
[2128] | 1648 | always @ (posedge clk) |
---|
[2088] | 1649 | if (~nrst) |
---|
| 1650 | last_trace <= 1'b0 ; |
---|
| 1651 | else if (packet_start) |
---|
| 1652 | last_trace <= 1'b0 ; |
---|
| 1653 | else if (flush && trace_done && cnt !=L-1 ) |
---|
| 1654 | last_trace <= 1'b1 ; |
---|
| 1655 | |
---|
| 1656 | always @ (posedge clk) |
---|
| 1657 | last_trace_s0 <= last_trace ; |
---|
| 1658 | |
---|
| 1659 | assign trace2 = ~last_trace_s0 & last_trace ; |
---|
| 1660 | assign trace_pos_i = trace | trace2 ; |
---|
| 1661 | |
---|
[2128] | 1662 | always @ (posedge clk) |
---|
[2088] | 1663 | if (~nrst) |
---|
| 1664 | begin |
---|
| 1665 | trace2_s1 <= 1'b0 ; |
---|
| 1666 | trace2_s2 <= 1'b0 ; |
---|
| 1667 | end |
---|
| 1668 | else |
---|
| 1669 | begin |
---|
| 1670 | trace2_s1 <= trace2 ; |
---|
| 1671 | trace2_s2 <= trace2_s1 ; |
---|
| 1672 | end |
---|
| 1673 | |
---|
| 1674 | |
---|
| 1675 | always @ (posedge clk) |
---|
| 1676 | begin |
---|
| 1677 | trace_pos_s0 <= trace_pos_i ; |
---|
| 1678 | trace_pos <= trace_pos_s0 ; |
---|
| 1679 | end |
---|
| 1680 | |
---|
[2128] | 1681 | always @ (posedge clk) |
---|
[2088] | 1682 | if(~nrst) |
---|
| 1683 | last_trace_num <= 0 ; |
---|
| 1684 | else |
---|
| 1685 | begin |
---|
| 1686 | if (packet_start) |
---|
| 1687 | last_trace_num <= 0 ; |
---|
| 1688 | else if (trace2) |
---|
| 1689 | last_trace_num <= L -cnt ; |
---|
| 1690 | else if (last_trace_d0) |
---|
| 1691 | last_trace_num <= last_trace_num + R ; |
---|
| 1692 | end |
---|
| 1693 | |
---|
| 1694 | always @ (posedge clk) |
---|
| 1695 | begin |
---|
| 1696 | last_trace_d0 <= last_trace & trace_done_pos ; |
---|
| 1697 | last_trace_d1 <= last_trace_d0 ; |
---|
| 1698 | last_trace_d2 <= last_trace_d1 ; |
---|
| 1699 | last_trace_d3 <= last_trace_d2 ; |
---|
| 1700 | last_trace_d4 <= last_trace_d3 ; |
---|
| 1701 | last_trace_d5 <= last_trace_d4 ; |
---|
| 1702 | end |
---|
| 1703 | |
---|
| 1704 | assign last_cnt_next = last_cnt - R ; |
---|
| 1705 | |
---|
[2128] | 1706 | always @ (posedge clk) |
---|
[2088] | 1707 | if(~nrst) |
---|
| 1708 | begin |
---|
| 1709 | one_more_out <= 1'b0 ; |
---|
| 1710 | last_cnt <= 0 ; |
---|
| 1711 | end |
---|
| 1712 | else |
---|
| 1713 | begin |
---|
| 1714 | if (packet_start) |
---|
| 1715 | begin |
---|
| 1716 | one_more_out <= 1'b0 ; |
---|
| 1717 | last_cnt <= 0 ; |
---|
| 1718 | end |
---|
| 1719 | else if (flush) |
---|
| 1720 | last_cnt <= cnt ; |
---|
| 1721 | else if (last_trace_d5) |
---|
| 1722 | begin |
---|
| 1723 | if (~last_cnt_next[LW-1]) |
---|
| 1724 | begin |
---|
| 1725 | last_cnt <= last_cnt_next ; |
---|
| 1726 | one_more_out <= 1'b1 ; |
---|
| 1727 | end |
---|
| 1728 | end |
---|
| 1729 | else |
---|
| 1730 | one_more_out <= 1'b0 ; |
---|
| 1731 | end |
---|
| 1732 | |
---|
[2128] | 1733 | always @ (posedge clk) |
---|
[2088] | 1734 | if (~nrst) |
---|
| 1735 | trace_en <= 0 ; |
---|
| 1736 | else if (packet_start) |
---|
| 1737 | trace_en <= 0 ; |
---|
| 1738 | else if (trace_pos) |
---|
| 1739 | trace_en <= 1'b1 ; |
---|
[4394] | 1740 | else if ((trace_cnt == L-2) & (early_trace1_en == 0) & (early_trace2_en == 0)) |
---|
[2088] | 1741 | trace_en <= 1'b0 ; |
---|
[4394] | 1742 | else if ((trace_cnt == L_EARLY1-2) & (early_trace1_en == 1)) |
---|
[2184] | 1743 | trace_en <= 1'b0 ; |
---|
[4394] | 1744 | else if ((trace_cnt == L_EARLY2-2) & (early_trace2_en == 1)) |
---|
| 1745 | trace_en <= 1'b0 ; |
---|
[2088] | 1746 | |
---|
[2128] | 1747 | always @ (posedge clk) |
---|
[2088] | 1748 | if (~nrst) |
---|
| 1749 | trace_cnt <= 0 ; |
---|
| 1750 | else if (trace_pos) |
---|
| 1751 | trace_cnt <= 0 ; |
---|
| 1752 | else if (trace_en) |
---|
| 1753 | trace_cnt <= trace_cnt + 2; |
---|
| 1754 | |
---|
[2184] | 1755 | //assign trace_done = (trace_cnt == L); |
---|
[4394] | 1756 | assign trace_done = early_trace1_en ? (trace_cnt == L_EARLY1) : (early_trace2_en ? (trace_cnt == L_EARLY2) : (trace_cnt == L)); |
---|
[2088] | 1757 | |
---|
| 1758 | always @ (posedge clk) |
---|
| 1759 | trace_done_s0 <= trace_done ; |
---|
| 1760 | assign trace_done_pos = ~trace_done_s0 & trace_done ; |
---|
| 1761 | |
---|
| 1762 | //============================== |
---|
| 1763 | // Get max metric |
---|
| 1764 | //============================== |
---|
| 1765 | max_metric #(M, K) max_metric_0 ( |
---|
| 1766 | .clk (clk ), |
---|
| 1767 | .a (metric_0 ), |
---|
| 1768 | .b (metric_1 ), |
---|
| 1769 | .c (metric_2 ), |
---|
| 1770 | .d (metric_3 ), |
---|
| 1771 | .sa (6'd0 ), |
---|
| 1772 | .sb (6'd1 ), |
---|
| 1773 | .sc (6'd2 ), |
---|
| 1774 | .sd (6'd3 ), |
---|
| 1775 | .state (state_0 ), |
---|
| 1776 | .max (max_0 ) |
---|
| 1777 | ) ; |
---|
| 1778 | |
---|
| 1779 | //============================== |
---|
| 1780 | // Get max metric |
---|
| 1781 | //============================== |
---|
| 1782 | max_metric #(M, K) max_metric_1 ( |
---|
| 1783 | .clk (clk ), |
---|
| 1784 | .a (metric_4 ), |
---|
| 1785 | .b (metric_5 ), |
---|
| 1786 | .c (metric_6 ), |
---|
| 1787 | .d (metric_7 ), |
---|
| 1788 | .sa (6'd4 ), |
---|
| 1789 | .sb (6'd5 ), |
---|
| 1790 | .sc (6'd6 ), |
---|
| 1791 | .sd (6'd7 ), |
---|
| 1792 | .state (state_1 ), |
---|
| 1793 | .max (max_1 ) |
---|
| 1794 | ) ; |
---|
| 1795 | |
---|
| 1796 | //============================== |
---|
| 1797 | // Get max metric |
---|
| 1798 | //============================== |
---|
| 1799 | max_metric #(M, K) max_metric_2 ( |
---|
| 1800 | .clk (clk ), |
---|
| 1801 | .a (metric_8 ), |
---|
| 1802 | .b (metric_9 ), |
---|
| 1803 | .c (metric_10 ), |
---|
| 1804 | .d (metric_11 ), |
---|
| 1805 | .sa (6'd8 ), |
---|
| 1806 | .sb (6'd9 ), |
---|
| 1807 | .sc (6'd10 ), |
---|
| 1808 | .sd (6'd11 ), |
---|
| 1809 | .state (state_2 ), |
---|
| 1810 | .max (max_2 ) |
---|
| 1811 | ) ; |
---|
| 1812 | |
---|
| 1813 | //============================== |
---|
| 1814 | // Get max metric |
---|
| 1815 | //============================== |
---|
| 1816 | max_metric #(M, K) max_metric_3 ( |
---|
| 1817 | .clk (clk ), |
---|
| 1818 | .a (metric_12 ), |
---|
| 1819 | .b (metric_13 ), |
---|
| 1820 | .c (metric_14 ), |
---|
| 1821 | .d (metric_15 ), |
---|
| 1822 | .sa (6'd12 ), |
---|
| 1823 | .sb (6'd13 ), |
---|
| 1824 | .sc (6'd14 ), |
---|
| 1825 | .sd (6'd15 ), |
---|
| 1826 | .state (state_3 ), |
---|
| 1827 | .max (max_3 ) |
---|
| 1828 | ) ; |
---|
| 1829 | |
---|
| 1830 | //============================== |
---|
| 1831 | // Get max metric |
---|
| 1832 | //============================== |
---|
| 1833 | max_metric #(M, K) max_metric_4 ( |
---|
| 1834 | .clk (clk ), |
---|
| 1835 | .a (metric_16 ), |
---|
| 1836 | .b (metric_17 ), |
---|
| 1837 | .c (metric_18 ), |
---|
| 1838 | .d (metric_19 ), |
---|
| 1839 | .sa (6'd16 ), |
---|
| 1840 | .sb (6'd17 ), |
---|
| 1841 | .sc (6'd18 ), |
---|
| 1842 | .sd (6'd19 ), |
---|
| 1843 | .state (state_4 ), |
---|
| 1844 | .max (max_4 ) |
---|
| 1845 | ) ; |
---|
| 1846 | |
---|
| 1847 | //============================== |
---|
| 1848 | // Get max metric |
---|
| 1849 | //============================== |
---|
| 1850 | max_metric #(M, K) max_metric_5 ( |
---|
| 1851 | .clk (clk ), |
---|
| 1852 | .a (metric_20 ), |
---|
| 1853 | .b (metric_21 ), |
---|
| 1854 | .c (metric_22 ), |
---|
| 1855 | .d (metric_23 ), |
---|
| 1856 | .sa (6'd20 ), |
---|
| 1857 | .sb (6'd21 ), |
---|
| 1858 | .sc (6'd22 ), |
---|
| 1859 | .sd (6'd23 ), |
---|
| 1860 | .state (state_5 ), |
---|
| 1861 | .max (max_5 ) |
---|
| 1862 | ) ; |
---|
| 1863 | |
---|
| 1864 | //============================== |
---|
| 1865 | // Get max metric |
---|
| 1866 | //============================== |
---|
| 1867 | max_metric #(M, K) max_metric_6 ( |
---|
| 1868 | .clk (clk ), |
---|
| 1869 | .a (metric_24 ), |
---|
| 1870 | .b (metric_25 ), |
---|
| 1871 | .c (metric_26 ), |
---|
| 1872 | .d (metric_27 ), |
---|
| 1873 | .sa (6'd24 ), |
---|
| 1874 | .sb (6'd25 ), |
---|
| 1875 | .sc (6'd26 ), |
---|
| 1876 | .sd (6'd27 ), |
---|
| 1877 | .state (state_6 ), |
---|
| 1878 | .max (max_6 ) |
---|
| 1879 | ) ; |
---|
| 1880 | |
---|
| 1881 | //============================== |
---|
| 1882 | // Get max metric |
---|
| 1883 | //============================== |
---|
| 1884 | max_metric #(M, K) max_metric_7 ( |
---|
| 1885 | .clk (clk ), |
---|
| 1886 | .a (metric_28 ), |
---|
| 1887 | .b (metric_29 ), |
---|
| 1888 | .c (metric_30 ), |
---|
| 1889 | .d (metric_31 ), |
---|
| 1890 | .sa (6'd28 ), |
---|
| 1891 | .sb (6'd29 ), |
---|
| 1892 | .sc (6'd30 ), |
---|
| 1893 | .sd (6'd31 ), |
---|
| 1894 | .state (state_7 ), |
---|
| 1895 | .max (max_7 ) |
---|
| 1896 | ) ; |
---|
| 1897 | |
---|
| 1898 | //============================== |
---|
| 1899 | // Get max metric |
---|
| 1900 | //============================== |
---|
| 1901 | max_metric #(M, K) max_metric_8 ( |
---|
| 1902 | .clk (clk ), |
---|
| 1903 | .a (metric_32 ), |
---|
| 1904 | .b (metric_33 ), |
---|
| 1905 | .c (metric_34 ), |
---|
| 1906 | .d (metric_35 ), |
---|
| 1907 | .sa (6'd32 ), |
---|
| 1908 | .sb (6'd33 ), |
---|
| 1909 | .sc (6'd34 ), |
---|
| 1910 | .sd (6'd35 ), |
---|
| 1911 | .state (state_8 ), |
---|
| 1912 | .max (max_8 ) |
---|
| 1913 | ) ; |
---|
| 1914 | |
---|
| 1915 | //============================== |
---|
| 1916 | // Get max metric |
---|
| 1917 | //============================== |
---|
| 1918 | max_metric #(M, K) max_metric_9 ( |
---|
| 1919 | .clk (clk ), |
---|
| 1920 | .a (metric_36 ), |
---|
| 1921 | .b (metric_37 ), |
---|
| 1922 | .c (metric_38 ), |
---|
| 1923 | .d (metric_39 ), |
---|
| 1924 | .sa (6'd36 ), |
---|
| 1925 | .sb (6'd37 ), |
---|
| 1926 | .sc (6'd38 ), |
---|
| 1927 | .sd (6'd39 ), |
---|
| 1928 | .state (state_9 ), |
---|
| 1929 | .max (max_9 ) |
---|
| 1930 | ) ; |
---|
| 1931 | |
---|
| 1932 | //============================== |
---|
| 1933 | // Get max metric |
---|
| 1934 | //============================== |
---|
| 1935 | max_metric #(M, K) max_metric_10 ( |
---|
| 1936 | .clk (clk ), |
---|
| 1937 | .a (metric_40 ), |
---|
| 1938 | .b (metric_41 ), |
---|
| 1939 | .c (metric_42 ), |
---|
| 1940 | .d (metric_43 ), |
---|
| 1941 | .sa (6'd40 ), |
---|
| 1942 | .sb (6'd41 ), |
---|
| 1943 | .sc (6'd42 ), |
---|
| 1944 | .sd (6'd43 ), |
---|
| 1945 | .state (state_10 ), |
---|
| 1946 | .max (max_10 ) |
---|
| 1947 | ) ; |
---|
| 1948 | |
---|
| 1949 | //============================== |
---|
| 1950 | // Get max metric |
---|
| 1951 | //============================== |
---|
| 1952 | max_metric #(M, K) max_metric_11 ( |
---|
| 1953 | .clk (clk ), |
---|
| 1954 | .a (metric_44 ), |
---|
| 1955 | .b (metric_45 ), |
---|
| 1956 | .c (metric_46 ), |
---|
| 1957 | .d (metric_47 ), |
---|
| 1958 | .sa (6'd44 ), |
---|
| 1959 | .sb (6'd45 ), |
---|
| 1960 | .sc (6'd46 ), |
---|
| 1961 | .sd (6'd47 ), |
---|
| 1962 | .state (state_11 ), |
---|
| 1963 | .max (max_11 ) |
---|
| 1964 | ) ; |
---|
| 1965 | |
---|
| 1966 | //============================== |
---|
| 1967 | // Get max metric |
---|
| 1968 | //============================== |
---|
| 1969 | max_metric #(M, K) max_metric_12 ( |
---|
| 1970 | .clk (clk ), |
---|
| 1971 | .a (metric_48 ), |
---|
| 1972 | .b (metric_49 ), |
---|
| 1973 | .c (metric_50 ), |
---|
| 1974 | .d (metric_51 ), |
---|
| 1975 | .sa (6'd48 ), |
---|
| 1976 | .sb (6'd49 ), |
---|
| 1977 | .sc (6'd50 ), |
---|
| 1978 | .sd (6'd51 ), |
---|
| 1979 | .state (state_12 ), |
---|
| 1980 | .max (max_12 ) |
---|
| 1981 | ) ; |
---|
| 1982 | |
---|
| 1983 | //============================== |
---|
| 1984 | // Get max metric |
---|
| 1985 | //============================== |
---|
| 1986 | max_metric #(M, K) max_metric_13 ( |
---|
| 1987 | .clk (clk ), |
---|
| 1988 | .a (metric_52 ), |
---|
| 1989 | .b (metric_53 ), |
---|
| 1990 | .c (metric_54 ), |
---|
| 1991 | .d (metric_55 ), |
---|
| 1992 | .sa (6'd52 ), |
---|
| 1993 | .sb (6'd53 ), |
---|
| 1994 | .sc (6'd54 ), |
---|
| 1995 | .sd (6'd55 ), |
---|
| 1996 | .state (state_13 ), |
---|
| 1997 | .max (max_13 ) |
---|
| 1998 | ) ; |
---|
| 1999 | |
---|
| 2000 | //============================== |
---|
| 2001 | // Get max metric |
---|
| 2002 | //============================== |
---|
| 2003 | max_metric #(M, K) max_metric_14 ( |
---|
| 2004 | .clk (clk ), |
---|
| 2005 | .a (metric_56 ), |
---|
| 2006 | .b (metric_57 ), |
---|
| 2007 | .c (metric_58 ), |
---|
| 2008 | .d (metric_59 ), |
---|
| 2009 | .sa (6'd56 ), |
---|
| 2010 | .sb (6'd57 ), |
---|
| 2011 | .sc (6'd58 ), |
---|
| 2012 | .sd (6'd59 ), |
---|
| 2013 | .state (state_14 ), |
---|
| 2014 | .max (max_14 ) |
---|
| 2015 | ) ; |
---|
| 2016 | |
---|
| 2017 | //============================== |
---|
| 2018 | // Get max metric |
---|
| 2019 | //============================== |
---|
| 2020 | max_metric #(M, K) max_metric_15 ( |
---|
| 2021 | .clk (clk ), |
---|
| 2022 | .a (metric_60 ), |
---|
| 2023 | .b (metric_61 ), |
---|
| 2024 | .c (metric_62 ), |
---|
| 2025 | .d (metric_63 ), |
---|
| 2026 | .sa (6'd60 ), |
---|
| 2027 | .sb (6'd61 ), |
---|
| 2028 | .sc (6'd62 ), |
---|
| 2029 | .sd (6'd63 ), |
---|
| 2030 | .state (state_15 ), |
---|
| 2031 | .max (max_15 ) |
---|
| 2032 | ) ; |
---|
| 2033 | |
---|
| 2034 | //============================== |
---|
| 2035 | // Get max metric |
---|
| 2036 | //============================== |
---|
| 2037 | max_metric #(M, K) max_metric_s1_0 ( |
---|
| 2038 | .clk (clk ), |
---|
| 2039 | .a (max_0 ), |
---|
| 2040 | .b (max_1 ), |
---|
| 2041 | .c (max_2 ), |
---|
| 2042 | .d (max_3 ), |
---|
| 2043 | .sa (state_0 ), |
---|
| 2044 | .sb (state_1 ), |
---|
| 2045 | .sc (state_2 ), |
---|
| 2046 | .sd (state_3 ), |
---|
| 2047 | .state (state_s1_0 ), |
---|
| 2048 | .max (max_s1_0 ) |
---|
| 2049 | ) ; |
---|
| 2050 | |
---|
| 2051 | //============================== |
---|
| 2052 | // Get max metric |
---|
| 2053 | //============================== |
---|
| 2054 | max_metric #(M, K) max_metric_s1_1 ( |
---|
| 2055 | .clk (clk ), |
---|
| 2056 | .a (max_4 ), |
---|
| 2057 | .b (max_5 ), |
---|
| 2058 | .c (max_6 ), |
---|
| 2059 | .d (max_7 ), |
---|
| 2060 | .sa (state_4 ), |
---|
| 2061 | .sb (state_5 ), |
---|
| 2062 | .sc (state_6 ), |
---|
| 2063 | .sd (state_7 ), |
---|
| 2064 | .state (state_s1_1 ), |
---|
| 2065 | .max (max_s1_1 ) |
---|
| 2066 | ) ; |
---|
| 2067 | |
---|
| 2068 | //============================== |
---|
| 2069 | // Get max metric |
---|
| 2070 | //============================== |
---|
| 2071 | max_metric #(M, K) max_metric_s1_2 ( |
---|
| 2072 | .clk (clk ), |
---|
| 2073 | .a (max_8 ), |
---|
| 2074 | .b (max_9 ), |
---|
| 2075 | .c (max_10 ), |
---|
| 2076 | .d (max_11 ), |
---|
| 2077 | .sa (state_8 ), |
---|
| 2078 | .sb (state_9 ), |
---|
| 2079 | .sc (state_10 ), |
---|
| 2080 | .sd (state_11 ), |
---|
| 2081 | .state (state_s1_2 ), |
---|
| 2082 | .max (max_s1_2 ) |
---|
| 2083 | ) ; |
---|
| 2084 | |
---|
| 2085 | //============================== |
---|
| 2086 | // Get max metric |
---|
| 2087 | //============================== |
---|
| 2088 | max_metric #(M, K) max_metric_s1_3 ( |
---|
| 2089 | .clk (clk ), |
---|
| 2090 | .a (max_12 ), |
---|
| 2091 | .b (max_13 ), |
---|
| 2092 | .c (max_14 ), |
---|
| 2093 | .d (max_15 ), |
---|
| 2094 | .sa (state_12 ), |
---|
| 2095 | .sb (state_13 ), |
---|
| 2096 | .sc (state_14 ), |
---|
| 2097 | .sd (state_15 ), |
---|
| 2098 | .state (state_s1_3 ), |
---|
| 2099 | .max (max_s1_3 ) |
---|
| 2100 | ) ; |
---|
| 2101 | |
---|
| 2102 | //============================== |
---|
| 2103 | // Get max metric |
---|
| 2104 | //============================== |
---|
| 2105 | max_metric_logic #(M, K) max_metric_s2_0 ( |
---|
| 2106 | .a (max_s1_0 ), |
---|
| 2107 | .b (max_s1_1 ), |
---|
| 2108 | .c (max_s1_2 ), |
---|
| 2109 | .d (max_s1_3 ), |
---|
| 2110 | .sa (state_s1_0 ), |
---|
| 2111 | .sb (state_s1_1 ), |
---|
| 2112 | .sc (state_s1_2 ), |
---|
| 2113 | .sd (state_s1_3 ), |
---|
| 2114 | .state (state_s2_0 ), |
---|
| 2115 | .max ( ) |
---|
| 2116 | ) ; |
---|
| 2117 | |
---|
| 2118 | assign init_state_i = state_s2_0 ; |
---|
| 2119 | |
---|
[2128] | 2120 | always @ (posedge clk) |
---|
[2088] | 2121 | if(~nrst) |
---|
| 2122 | trace_state <= 0 ; |
---|
| 2123 | else |
---|
| 2124 | begin |
---|
| 2125 | if (trace_pos) |
---|
| 2126 | begin |
---|
| 2127 | if(zero_tail & trace2_s2) |
---|
| 2128 | trace_state <= 0 ; |
---|
| 2129 | else |
---|
| 2130 | trace_state <= init_state_i ; |
---|
| 2131 | end |
---|
| 2132 | else if (trace_en) |
---|
| 2133 | trace_state <= next_state ; |
---|
| 2134 | end |
---|
| 2135 | |
---|
[6299] | 2136 | // POM: pipeline reg on trace_start_wptr, breaks 7-level critical path |
---|
| 2137 | reg [TRW -1:0] trace_start_wptr_d; |
---|
| 2138 | always @(posedge clk) |
---|
| 2139 | begin |
---|
| 2140 | trace_start_wptr_d <= trace_start_wptr; |
---|
| 2141 | end |
---|
[2088] | 2142 | |
---|
[6299] | 2143 | |
---|
| 2144 | //assign trace_start_pos = trace_start_wptr ; |
---|
| 2145 | assign trace_start_pos = trace_start_wptr_d ; |
---|
| 2146 | |
---|
[2088] | 2147 | assign trace_start_pos0 = trace_start_pos - trace_cnt ; |
---|
| 2148 | assign trace_start_pos1 = trace_start_pos - trace_cnt -1 ; |
---|
| 2149 | |
---|
| 2150 | assign cur_state0 = trace_state ; |
---|
| 2151 | |
---|
| 2152 | assign tran_all_0 = { |
---|
| 2153 | tran_state_63[trace_start_pos0], tran_state_62[trace_start_pos0], tran_state_61[trace_start_pos0], tran_state_60[trace_start_pos0], |
---|
| 2154 | tran_state_59[trace_start_pos0], tran_state_58[trace_start_pos0], tran_state_57[trace_start_pos0], tran_state_56[trace_start_pos0], |
---|
| 2155 | tran_state_55[trace_start_pos0], tran_state_54[trace_start_pos0], tran_state_53[trace_start_pos0], tran_state_52[trace_start_pos0], |
---|
| 2156 | tran_state_51[trace_start_pos0], tran_state_50[trace_start_pos0], tran_state_49[trace_start_pos0], tran_state_48[trace_start_pos0], |
---|
| 2157 | |
---|
| 2158 | tran_state_47[trace_start_pos0], tran_state_46[trace_start_pos0], tran_state_45[trace_start_pos0], tran_state_44[trace_start_pos0], |
---|
| 2159 | tran_state_43[trace_start_pos0], tran_state_42[trace_start_pos0], tran_state_41[trace_start_pos0], tran_state_40[trace_start_pos0], |
---|
| 2160 | tran_state_39[trace_start_pos0], tran_state_38[trace_start_pos0], tran_state_37[trace_start_pos0], tran_state_36[trace_start_pos0], |
---|
| 2161 | tran_state_35[trace_start_pos0], tran_state_34[trace_start_pos0], tran_state_33[trace_start_pos0], tran_state_32[trace_start_pos0], |
---|
| 2162 | |
---|
| 2163 | tran_state_31[trace_start_pos0], tran_state_30[trace_start_pos0], tran_state_29[trace_start_pos0], tran_state_28[trace_start_pos0], |
---|
| 2164 | tran_state_27[trace_start_pos0], tran_state_26[trace_start_pos0], tran_state_25[trace_start_pos0], tran_state_24[trace_start_pos0], |
---|
| 2165 | tran_state_23[trace_start_pos0], tran_state_22[trace_start_pos0], tran_state_21[trace_start_pos0], tran_state_20[trace_start_pos0], |
---|
| 2166 | tran_state_19[trace_start_pos0], tran_state_18[trace_start_pos0], tran_state_17[trace_start_pos0], tran_state_16[trace_start_pos0], |
---|
| 2167 | |
---|
| 2168 | tran_state_15[trace_start_pos0], tran_state_14[trace_start_pos0], tran_state_13[trace_start_pos0], tran_state_12[trace_start_pos0], |
---|
| 2169 | tran_state_11[trace_start_pos0], tran_state_10[trace_start_pos0], tran_state_9[trace_start_pos0], tran_state_8[trace_start_pos0], |
---|
| 2170 | tran_state_7[trace_start_pos0], tran_state_6[trace_start_pos0], tran_state_5[trace_start_pos0], tran_state_4[trace_start_pos0], |
---|
| 2171 | tran_state_3[trace_start_pos0], tran_state_2[trace_start_pos0], tran_state_1[trace_start_pos0], tran_state_0[trace_start_pos0]} ; |
---|
| 2172 | |
---|
| 2173 | assign tran_all_1 = { |
---|
| 2174 | tran_state_63[trace_start_pos1], tran_state_62[trace_start_pos1], tran_state_61[trace_start_pos1], tran_state_60[trace_start_pos1], |
---|
| 2175 | tran_state_59[trace_start_pos1], tran_state_58[trace_start_pos1], tran_state_57[trace_start_pos1], tran_state_56[trace_start_pos1], |
---|
| 2176 | tran_state_55[trace_start_pos1], tran_state_54[trace_start_pos1], tran_state_53[trace_start_pos1], tran_state_52[trace_start_pos1], |
---|
| 2177 | tran_state_51[trace_start_pos1], tran_state_50[trace_start_pos1], tran_state_49[trace_start_pos1], tran_state_48[trace_start_pos1], |
---|
| 2178 | |
---|
| 2179 | tran_state_47[trace_start_pos1], tran_state_46[trace_start_pos1], tran_state_45[trace_start_pos1], tran_state_44[trace_start_pos1], |
---|
| 2180 | tran_state_43[trace_start_pos1], tran_state_42[trace_start_pos1], tran_state_41[trace_start_pos1], tran_state_40[trace_start_pos1], |
---|
| 2181 | tran_state_39[trace_start_pos1], tran_state_38[trace_start_pos1], tran_state_37[trace_start_pos1], tran_state_36[trace_start_pos1], |
---|
| 2182 | tran_state_35[trace_start_pos1], tran_state_34[trace_start_pos1], tran_state_33[trace_start_pos1], tran_state_32[trace_start_pos1], |
---|
| 2183 | |
---|
| 2184 | tran_state_31[trace_start_pos1], tran_state_30[trace_start_pos1], tran_state_29[trace_start_pos1], tran_state_28[trace_start_pos1], |
---|
| 2185 | tran_state_27[trace_start_pos1], tran_state_26[trace_start_pos1], tran_state_25[trace_start_pos1], tran_state_24[trace_start_pos1], |
---|
| 2186 | tran_state_23[trace_start_pos1], tran_state_22[trace_start_pos1], tran_state_21[trace_start_pos1], tran_state_20[trace_start_pos1], |
---|
| 2187 | tran_state_19[trace_start_pos1], tran_state_18[trace_start_pos1], tran_state_17[trace_start_pos1], tran_state_16[trace_start_pos1], |
---|
| 2188 | |
---|
| 2189 | tran_state_15[trace_start_pos1], tran_state_14[trace_start_pos1], tran_state_13[trace_start_pos1], tran_state_12[trace_start_pos1], |
---|
| 2190 | tran_state_11[trace_start_pos1], tran_state_10[trace_start_pos1], tran_state_9[trace_start_pos1], tran_state_8[trace_start_pos1], |
---|
| 2191 | tran_state_7[trace_start_pos1], tran_state_6[trace_start_pos1], tran_state_5[trace_start_pos1], tran_state_4[trace_start_pos1], |
---|
| 2192 | tran_state_3[trace_start_pos1], tran_state_2[trace_start_pos1], tran_state_1[trace_start_pos1], tran_state_0[trace_start_pos1]} ; |
---|
| 2193 | |
---|
| 2194 | |
---|
| 2195 | assign cur_state1 = get_next_trace_state (cur_state0, tran_all_0) ; |
---|
| 2196 | assign next_state = get_next_trace_state (cur_state1, tran_all_1) ; |
---|
| 2197 | |
---|
| 2198 | assign state0_bit = cur_state0 [K -2] ; |
---|
| 2199 | assign state1_bit = cur_state1 [K -2] ; |
---|
| 2200 | |
---|
[2128] | 2201 | always @ (posedge clk) |
---|
[2088] | 2202 | if(~nrst) |
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| 2203 | res <= 0 ; |
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| 2204 | else |
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| 2205 | begin |
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| 2206 | if (trace_pos) |
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| 2207 | res <= 0 ; |
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| 2208 | else if (trace_en) |
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| 2209 | begin |
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| 2210 | res <= {state1_bit, state0_bit, res [L-1:2]} ; |
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| 2211 | end |
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| 2212 | end |
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| 2213 | |
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| 2214 | //====================================== |
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| 2215 | // function: get_next_trace_state |
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| 2216 | //====================================== |
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| 2217 | function [K-2:0] get_next_trace_state ; |
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| 2218 | input [K-2:0] cur_state_in ; |
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| 2219 | input [N -1:0] tran_state_in ; |
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| 2220 | reg [N -1:0] tmp ; |
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| 2221 | begin |
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| 2222 | tmp = tran_state_in >> cur_state_in ; |
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| 2223 | get_next_trace_state = {cur_state_in [K-3:0], tmp[0]} ; |
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| 2224 | end |
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| 2225 | endfunction |
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| 2226 | |
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| 2227 | endmodule |
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| 2228 | |
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| 2229 | |
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| 2230 | //************************************************************** |
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| 2231 | // File: max_metric_logic.v |
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| 2232 | // Author: Yang Sun (ysun@rice.edu) |
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| 2233 | // Birth: $ 1/14/07 |
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| 2234 | // Des: The top level of viterbi decoder |
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| 2235 | // Take 5 bit soft value is [-16 : +15] |
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| 2236 | // K = 7. g0 = 133, g1 = 171 |
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| 2237 | // History: $ 1/14/07, Init coding |
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| 2238 | // $ 1/22/07, K = 5, Zero latency |
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| 2239 | // $ 12/1/07: Updated |
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| 2240 | //************************************************************** |
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| 2241 | module max_metric_logic ( |
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| 2242 | a , // I, metric a |
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| 2243 | b , // I, metric b |
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| 2244 | c , // I, metric c |
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| 2245 | d , // I, metric d |
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| 2246 | sa , // I, state a |
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| 2247 | sb , // I, state b |
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| 2248 | sc , // I, state c |
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| 2249 | sd , // I, state d |
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| 2250 | state , // O, state |
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| 2251 | max // O, max metric |
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| 2252 | ) ; |
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| 2253 | |
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| 2254 | parameter M = 7 ; |
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| 2255 | parameter K = 7 ; |
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| 2256 | |
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| 2257 | input [M -1:0] a ; |
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| 2258 | input [M -1:0] b ; |
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| 2259 | input [M -1:0] c ; |
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| 2260 | input [M -1:0] d ; |
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| 2261 | |
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| 2262 | input [K -2:0] sa ; |
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| 2263 | input [K -2:0] sb ; |
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| 2264 | input [K -2:0] sc ; |
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| 2265 | input [K -2:0] sd ; |
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| 2266 | |
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| 2267 | output [K -2:0] state ; |
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| 2268 | output [M -1:0] max ; |
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| 2269 | |
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| 2270 | //================================== |
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| 2271 | //Internal signal |
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| 2272 | //================================== |
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| 2273 | |
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| 2274 | reg [K -2:0] pos0 ; |
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| 2275 | reg [K -2:0] pos1 ; |
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| 2276 | reg [M -1:0] max0 ; |
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| 2277 | reg [M -1:0] max1 ; |
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| 2278 | reg [M -1:0] tmp ; |
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| 2279 | reg [K -2:0] state_i ; |
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| 2280 | reg [M -1:0] max_i ; |
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| 2281 | |
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| 2282 | //================================== |
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| 2283 | // Main body of code |
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| 2284 | //================================== |
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| 2285 | assign state = state_i ; |
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| 2286 | assign max = max_i ; |
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| 2287 | |
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| 2288 | always @* |
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| 2289 | begin |
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| 2290 | tmp = a-b ; |
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| 2291 | if(~tmp[M -1]) |
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| 2292 | begin |
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| 2293 | max0 = a ; |
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| 2294 | pos0 = sa ; |
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| 2295 | end |
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| 2296 | else |
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| 2297 | begin |
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| 2298 | max0 = b ; |
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| 2299 | pos0 = sb ; |
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| 2300 | end |
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| 2301 | |
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| 2302 | tmp = c-d ; |
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| 2303 | if(~tmp[M-1]) |
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| 2304 | begin |
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| 2305 | max1 = c ; |
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| 2306 | pos1 = sc ; |
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| 2307 | end |
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| 2308 | else |
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| 2309 | begin |
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| 2310 | max1 = d ; |
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| 2311 | pos1 = sd ; |
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| 2312 | end |
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| 2313 | |
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| 2314 | tmp = max0 - max1 ; |
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| 2315 | if (~tmp[M-1]) |
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| 2316 | begin |
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| 2317 | max_i = max0 ; |
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| 2318 | state_i = pos0 ; |
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| 2319 | end |
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| 2320 | else |
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| 2321 | begin |
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| 2322 | state_i = pos1 ; |
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| 2323 | max_i = max1 ; |
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| 2324 | end |
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| 2325 | end |
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| 2326 | |
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| 2327 | endmodule |
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| 2328 | |
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| 2329 | //************************************************************** |
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| 2330 | // File: max_metric |
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| 2331 | // Author: Yang Sun (ysun@rice.edu) |
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| 2332 | // Birth: $ 1/14/07 |
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| 2333 | // Des: Find max metric |
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| 2334 | // K = 7. g0 = 133, g1 = 171 |
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| 2335 | // History: $ 1/14/07, Init coding |
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| 2336 | // $ 1/22/07, K = 5 |
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| 2337 | // $ 2/23/07, 1 pipeline |
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| 2338 | // $ 12/1/07: updated |
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| 2339 | //************************************************************** |
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| 2340 | module max_metric ( |
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| 2341 | clk , // I, clock |
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| 2342 | a , // I, metric a |
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| 2343 | b , // I, metric b |
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| 2344 | c , // I, metric c |
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| 2345 | d , // I, metric d |
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| 2346 | sa , // I, state a |
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| 2347 | sb , // I, state b |
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| 2348 | sc , // I, state c |
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| 2349 | sd , // I, state d |
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| 2350 | state , // O, state |
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| 2351 | max // O, max metric |
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| 2352 | ) ; |
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| 2353 | |
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| 2354 | parameter M = 7 ; |
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| 2355 | parameter K = 7 ; |
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| 2356 | |
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| 2357 | input clk ; |
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| 2358 | input [M -1:0] a ; |
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| 2359 | input [M -1:0] b ; |
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| 2360 | input [M -1:0] c ; |
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| 2361 | input [M -1:0] d ; |
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| 2362 | |
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| 2363 | input [K -2:0] sa ; |
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| 2364 | input [K -2:0] sb ; |
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| 2365 | input [K -2:0] sc ; |
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| 2366 | input [K -2:0] sd ; |
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| 2367 | |
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| 2368 | output [K -2:0] state ; |
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| 2369 | output [M -1:0] max ; |
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| 2370 | |
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| 2371 | //===================================== |
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| 2372 | //Internal signal |
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| 2373 | //===================================== |
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| 2374 | reg [K -2:0] pos0 ; |
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| 2375 | reg [K -2:0] pos1 ; |
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| 2376 | reg [M -1:0] max0 ; |
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| 2377 | reg [M -1:0] max1 ; |
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| 2378 | reg [M -1:0] tmp ; |
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| 2379 | reg [K -2:0] state_i ; |
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| 2380 | reg [M -1:0] max_i ; |
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| 2381 | reg [K -2:0] state_reg ; |
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| 2382 | reg [M -1:0] max_reg ; |
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| 2383 | |
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| 2384 | //===================================== |
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| 2385 | // Main RTL code |
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| 2386 | //===================================== |
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| 2387 | assign state = state_reg ; |
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| 2388 | assign max = max_reg ; |
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| 2389 | |
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| 2390 | always @ (posedge clk) |
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| 2391 | begin |
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| 2392 | state_reg <= state_i ; |
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| 2393 | max_reg <= max_i ; |
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| 2394 | end |
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| 2395 | |
---|
| 2396 | always @* |
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| 2397 | begin |
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| 2398 | tmp = a-b ; |
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| 2399 | if(~tmp[M -1]) |
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| 2400 | begin |
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| 2401 | max0 = a ; |
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| 2402 | pos0 = sa ; |
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| 2403 | end |
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| 2404 | else |
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| 2405 | begin |
---|
| 2406 | max0 = b ; |
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| 2407 | pos0 = sb ; |
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| 2408 | end |
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| 2409 | |
---|
| 2410 | tmp = c-d ; |
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| 2411 | if(~tmp[M-1]) |
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| 2412 | begin |
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| 2413 | max1 = c ; |
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| 2414 | pos1 = sc ; |
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| 2415 | end |
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| 2416 | else |
---|
| 2417 | begin |
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| 2418 | max1 = d ; |
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| 2419 | pos1 = sd ; |
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| 2420 | end |
---|
| 2421 | |
---|
| 2422 | tmp = max0 - max1 ; |
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| 2423 | if (~tmp[M-1]) |
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| 2424 | begin |
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| 2425 | max_i = max0 ; |
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| 2426 | state_i = pos0 ; |
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| 2427 | end |
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| 2428 | else |
---|
| 2429 | begin |
---|
| 2430 | state_i = pos1 ; |
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| 2431 | max_i = max1 ; |
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| 2432 | end |
---|
| 2433 | end |
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| 2434 | |
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| 2435 | endmodule |
---|