From 5d95607192380be5cc62592efac52814a0e090df Mon Sep 17 00:00:00 2001
From: Julian Blake Kongslie
Date: Tue, 23 Mar 2021 12:22:38 -0700
Subject: Initial commit.

---
 fibseq.sv | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 fibseq.sv

(limited to 'fibseq.sv')

diff --git a/fibseq.sv b/fibseq.sv
new file mode 100644
index 0000000..f877b98
--- /dev/null
+++ b/fibseq.sv
@@ -0,0 +1,30 @@
+module fibseq
+    #(  BITS = 8
+    )
+    (   input   bit clk
+    ,   input   bit reset
+
+    ,   input   bit             ready   `define ready $past(ready)
+    ,   output  bit             valid
+    ,   output  bit [BITS-1:0]  data
+    );
+
+bit [BITS-1:0] a;
+bit [BITS-1:0] b;
+
+always_ff @(posedge clk) begin
+    if (reset) begin
+        valid = 0;
+        a = 0;
+        b = 1;
+    end else begin
+        if (`ready) valid = 0;
+        if (!valid) begin
+            valid = 1;
+            data = a;
+            {a, b} = {b, a + b};
+        end
+    end
+end
+
+endmodule
-- 
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