diff --git a/sketches/display.js b/sketches/display.js
new file mode 100644
index 0000000..0da75e7
--- /dev/null
+++ b/sketches/display.js
@@ -0,0 +1,11 @@
+exports.printDisplay = (mem) => {
+  for (let i = 0; i < 16; i += 4) {
+    console.log(`${pad(mem[i])} ${pad(mem[i+1])} ${pad(mem[i+2])} ${pad(mem[i+3])}`);
+  }
+}
+
+const num2hex = (num) => num.toString(16).toUpperCase().padStart(2, "0");
+
+function pad(n) {
+  return n.toString().padStart(3, "0");
+};
\ No newline at end of file