# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1540940387 -3600
# Node ID b54c63959b330d836d024aa6005e7993f398385b
# Parent  876b75c4dbc15e22132a1ea27b8644a759a8ff20
Added an extra line to the framebuffer for horizontal scrolling purposes.

diff -r 876b75c4dbc1 -r b54c63959b33 include/display_config.h
--- a/include/display_config.h	Tue Oct 30 23:59:17 2018 +0100
+++ b/include/display_config.h	Tue Oct 30 23:59:47 2018 +0100
@@ -24,7 +24,15 @@
 #include "display.h"
 #include "vga.h"
 
-uint8_t framebuffer[SCREEN_SIZE];
+/* Reserve enough space for a screen, plus one line to allow horizontal
+   scrolling, since a horizontal scroll offset causes the final transfer line to
+   exceed the screen limit. */
+
+uint8_t framebuffer[SCREEN_SIZE + LINE_LENGTH];
+
+
+
+/* Define a structure containing the display parameters. */
 
 display_config_t display_config = {