From 851f19ddfba2d1fad8ee08b850ff2db04b3fda10 Mon Sep 17 00:00:00 2001
From: Will Scullin <scullin@scullin.com>
Date: Mon, 18 Dec 2023 14:13:06 -0800
Subject: [PATCH] Ignore unprintable characters

---
 js/canvas1.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/js/canvas1.ts b/js/canvas1.ts
index 3de909e..c30a5aa 100644
--- a/js/canvas1.ts
+++ b/js/canvas1.ts
@@ -78,7 +78,7 @@ export class TextPage {
       }
       this._col = 0;
       this._row++;
-    } else {
+    } else if (val >= 0x20) {
       this._buffer[this._row][this._col] = val;
       this._col++;
       if (this._col > 39) {