add debug module for timings

1 files changed, 22 insertions, 0 deletions

diff --git a/hex33board/debug.py b/hex33board/debug.py
new file mode 100644
index 0000000..499d2c5
--- /dev/null
+++ b/hex33board/debug.py
@@ -0,0 +1,22 @@
+import time
+times = []
+names = []
+
+
+def start():
+    times.clear()
+    names.clear()
+    times.append(time.monotonic_ns())
+
+
+def step(name):
+    times.append(time.monotonic_ns())
+    names.append(name)
+
+
+def stop():
+    timestr = ' + '.join(
+        f"{(times[i+1] - times[i]) // 1000000}ms {text}"
+        for i, text in enumerate(names)
+    )
+    print(f"{timestr} = {(times[-1] - times[0]) // 1000000}ms")