From b1c26c1edd4c574a21d7c05153c52374f3080737 Mon Sep 17 00:00:00 2001
From: Brion Vibber <brion@pobox.com>
Date: Sun, 5 Mar 2023 16:54:40 -0800
Subject: [PATCH] WIP fix keyboard check

---
 mandel.s | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mandel.s b/mandel.s
index 44bff1f..42982cb 100644
--- a/mandel.s
+++ b/mandel.s
@@ -489,7 +489,7 @@ initloop:
     dex
     bne initloop
     sta z_buffer_start
-    sta z_buffer_len
+    sta z_buffer_end
 
 loop:
     ; iter++ & max-iters break
@@ -905,7 +905,7 @@ loop_sx:
     cmp #$ff
     beq skip_char
 
-    ; Clear the keyboard buffer
+    ; Clear the keyboard buffer and re-enable interrupts
     ldx #$ff
     stx CH