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yosys/docs/source/code_examples/selections/select.v
Krystine Sherwin dbc38d72cf
docs: moving code examples
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.
2023-11-14 12:55:39 +13:00

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