add timer.zig

diff --git a/timer.zig b/timer.zig
new file mode 100644 (file)
index 0000000..874aee3
--- /dev/null
+++ b/timer.zig
@@ -0,0 +1,14 @@
+const std = @import("std");
+
+pub fn main() !void {
+    var timer = try std.time.Timer.start();
+    while (true) {
+        const ns = timer.read();
+        const h = (ns / 1000000000 / 3600);
+        const m = (ns / 1000000000 / 60) % 60;
+        const s = (ns / 1000000000) % 60;
+        const ms = (ns / 1000000) % 1000;
+        std.debug.print("\r{:0>1}:{:0>2}:{:0>2}.{:0<3}", .{h, m, s, ms});
+        std.Thread.sleep(10000000);
+    }
+}