cordic IC implement for fast cordic calculate.
Including test bench.
feature:
1. slicon proved.
源代码在线查看： add.v
/********************************************************************** * Author : 畗產狽(Shyu,Jia-jye)(ZYCA) * DATA : 2004/10/22 * FILE : add.v * VERSION : 1 * DESCRIPTION : Adder for DSP IC. * * VERSION NOTE: 1. Created @ 2004.10.22 **********************************************************************/ module add( add_cin, add_a, add_b, add_sum, add_cout, add_of ); parameter W_DATA = 8; input add_cin; //carry in input [ W_DATA- 1: 0] add_a; input [ W_DATA- 1: 0] add_b; output add_cout;//carry out output add_of; //overflow flag output [ W_DATA- 1: 0] add_sum; wire add_cin; //carry in wire [ W_DATA- 1: 0] add_a; wire [ W_DATA- 1: 0] add_b; wire add_cout;//carry out wire add_of; //overflow flag wire [ W_DATA- 1: 0] add_sum; wire [ W_DATA- 2: 0] a_tmp; wire [ W_DATA- 2: 0] b_tmp; wire c_tmp; assign a_tmp = add_a[ W_DATA- 2: 0]; assign b_tmp = add_b[ W_DATA- 2: 0]; assign { c_tmp, add_sum[ W_DATA- 2: 0]} = a_tmp + b_tmp + add_cin; assign { add_cout, add_sum[ W_DATA- 1]} = add_a[ W_DATA- 1] + add_b[ W_DATA- 1] + c_tmp; assign add_of = c_tmp ^ add_cout; endmodule
