stage.v

viterbi译码器的一种fpga实现

`include "defs.h"

module stage(in00, in01, in10, in11, in20, in21, in30, in31, 
             sum_enc_bits, sub_enc_bits, 
             out00, out01, out10, out11, out20, out21, out30, out31, cmp);

input    [8-1:0] in00, in01, in10, in11, in20, in21, in30, in31;
input    [4-1:0] sum_enc_bits, sub_enc_bits;
output   [8-1:0] out00, out01, out10, out11, out20, out21, out30, out31;
output   [4-1:0] cmp;

ACS1_0 state0(in00, in01, sum_enc_bits,  out00, out01, cmp[0]);
ACS1_1 state1(in10, in11, sum_enc_bits,  out10, out11, cmp[1]);
ACS2_0 state2(in20, in21, sub_enc_bits,  out20, out21, cmp[2]);
ACS2_1 state3(in30, in31, sub_enc_bits,  out30, out31, cmp[3]);

endmodule