diff --git a/display.js b/display.js
index a051282..5ac78f0 100644
--- a/display.js
+++ b/display.js
@@ -1,9 +1,23 @@
 const { POINTER_TO_START_OF_DISPLAY_MEM } = require('./machine.config');
 const { num2hex } = require('./logging.js');
 
-exports.printDisplay = (mem) => {
+const printDisplay = (mem) => {
   const disp = mem[POINTER_TO_START_OF_DISPLAY_MEM];
+  console.log("DISP", disp);
   for (let i = disp; i < disp + 16; i += 4) {
     console.log(`${num2hex(mem[i])} ${num2hex(mem[i+1])} ${num2hex(mem[i+2])} ${num2hex(mem[i+3])}`);
   }
+}
+
+const prettyPrintDisplay = (mem) => {
+  const disp = mem[POINTER_TO_START_OF_DISPLAY_MEM];
+  const num2pic = (n) => n > 0 ? '⚫' : '⚪';
+  for (let i = disp; i < disp + 16; i += 4) {
+    console.log(`${num2pic(mem[i])}${num2pic(mem[i+1])}${num2pic(mem[i+2])}${num2pic(mem[i+3])}`);
+  }
+}
+
+module.exports = {
+  "printDisplay": printDisplay,
+  "prettyPrintDisplay": prettyPrintDisplay,
 }
\ No newline at end of file
diff --git a/simulator.js b/simulator.js
index f521f03..b7a194d 100644
--- a/simulator.js
+++ b/simulator.js
@@ -198,7 +198,11 @@ exports.runProgram = async (code, debug = false) => {
 async function logCPUState(debug = false) {
   console.group(`Step`);
     if (!debug) console.clear();
-    display.printDisplay(CPU.memory);
+    if (debug) {
+      display.printDisplay(CPU.memory);
+    } else {
+      display.prettyPrintDisplay(CPU.memory);
+    }
     console.log();
     console.log('Mnemonic:', CPU.currentInstruction.mnemonic);
     console.log(`Machine:  $${num2hex(CPU.currentInstruction.opcode)} $${num2hex(CPU.currentInstruction.argument)}`);