mirrors/yosys
3
0
Fork 0
mirror of https://github.com/YosysHQ/yosys synced 2025-08-22 02:57:51 +00:00
Code Activity

initial import

Browse source
This commit is contained in:
Clifford Wolf 2013-01-05 11:13:26 +01:00
commit 7764d0ba1d
481 changed files with 54634 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

35
tests/simple/task_func.v Normal file
View file

@ -0,0 +1,35 @@
module test01(clk, a, b, c, x, y, z, w);
input clk;
input [7:0] a, b, c;
output reg [7:0] x, y, z, w;
function [7:0] sum_shift;
input [3:0] s1, s2, s3;
sum_shift = s1 + (s2 << 2) + (s3 << 4);
endfunction
task reset_w;
w = 0;
endtask
task add_to;
output [7:0] out;
input [7:0] in;
out = out + in;
endtask
always @(posedge clk) begin
x = sum_shift(a, b, c);
y = sum_shift(a[7:4], b[5:2], c[3:0]);
z = sum_shift(a[0], b[5:4], c >> 5) ^ sum_shift(1, 2, 3);
reset_w;
add_to(w, x);
add_to(w, y);
add_to(w, z);
end
endmodule