mirror of
https://github.com/YosysHQ/yosys
synced 2025-04-07 09:55:20 +00:00
Code now resides in `docs/source/code_examples`. `CHAPTER_Prog` -> `stubnets` `APPNOTE_011_Design_Investigation` -> `selections` and `show` `resources/PRESENTATION_Intro` -> `intro` `resources/PRESENTATION_ExSyn` -> `synth_flow` `resources/PRESENTATION_ExAdv` -> `techmap`, `macc`, and `selections` `resources/PRESENTATION_ExOth` -> `scrambler` and `axis` Note that generated images are not yet configured to build from the new code locations.
16 lines
308 B
Verilog
16 lines
308 B
Verilog
module test(clk, s, a, y);
|
|
input clk, s;
|
|
input [15:0] a;
|
|
output [15:0] y;
|
|
reg [15:0] b, c;
|
|
|
|
always @(posedge clk) begin
|
|
b <= a;
|
|
c <= b;
|
|
end
|
|
|
|
wire [15:0] state_a = (a ^ b) + c;
|
|
wire [15:0] state_b = (a ^ b) - c;
|
|
assign y = !s ? state_a : state_b;
|
|
endmodule
|