From ea87a813e1213eef56353540bd67dd375778fb27 Mon Sep 17 00:00:00 2001
From: Cassie Jones <code@witchoflight.com>
Date: Sat, 27 Apr 2019 14:23:05 -0400
Subject: [PATCH] Add example counter

---
 example/counter.sv | 15 +++++++++++++++
 example/counter.ys |  7 +++++++
 2 files changed, 22 insertions(+)
 create mode 100644 example/counter.sv
 create mode 100644 example/counter.ys

diff --git a/example/counter.sv b/example/counter.sv
new file mode 100644
index 0000000..36f83e4
--- /dev/null
+++ b/example/counter.sv
@@ -0,0 +1,15 @@
+module counter #(parameter WIDTH=3, parameter MAX=(1<<WIDTH)-1) (
+    input clock,
+    input reset,
+    output logic [WIDTH-1:0] count,
+    output logic max
+);
+
+assign max = count == MAX;
+
+always_ff @(posedge clock) begin
+    if (reset) count <= 0;
+    else if (!max) count <= count + 1;
+end
+
+endmodule
diff --git a/example/counter.ys b/example/counter.ys
new file mode 100644
index 0000000..9b899d3
--- /dev/null
+++ b/example/counter.ys
@@ -0,0 +1,7 @@
+read_verilog -sv example/counter.sv
+read_liberty minecraft.lib
+synth
+dff2dffe
+abc -liberty minecraft.lib
+stat
+show counter
-- 
2.47.0