From 504457595a7d4ad1a351b70ea508031c3ad55714 Mon Sep 17 00:00:00 2001
From: Brooke Vibber <bvibber@pobox.com>
Date: Sat, 28 Dec 2024 18:11:35 -0800
Subject: [PATCH] correct zoom border checks

---
 mandel.s | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/mandel.s b/mandel.s
index 7c5c652..fe29001 100644
--- a/mandel.s
+++ b/mandel.s
@@ -1148,11 +1148,13 @@ skip_char:
     rts
 
 plus:
+    lda zoom
     cmp #8
     bpl skip_char
     inc zoom
     jmp done
 minus:
+    lda zoom
     cmp #1
     bmi skip_char
     dec zoom