# HG changeset patch
# User Laurens Holst <laurens@grauw.nl>
# Date 1644768779 -3600
#      Sun Feb 13 17:12:59 2022 +0100
# Node ID c7a1b4c8b2f8911ecf33a0dd0f5e7b928dc642d6
# Parent  32b0c4617f4ac033e265cc766be0e4260b2a24e8
vdp_guide: Changing r#18 with sprites disabled blanks in either direction.

Confirmed by test program.

diff --git a/articles/vdp_guide.php b/articles/vdp_guide.php
--- a/articles/vdp_guide.php
+++ b/articles/vdp_guide.php
@@ -33,7 +33,10 @@
 
 <h2 id="r18disp">Q: What about screensplits with the help of r#18?</h2>
 
-<p>A: Once again, this register behaves a bit strangely when you disable the sprites. During the display cycle, if you move the screen to the left using r#18, the entire current line is drawn in the background color. This only happens when the sprites are disabled. So if you’re creating a screensplit with the help of r#18, watch out for this.</p>
+<p>A: Once again, this register behaves a bit strangely. During the display
+cycle, if you move the screen horizontally using r#18, the entire current line
+can be blanked. This only happens when the sprites are disabled. So if you’re
+creating a screensplit with r#18, watch out for this.</p>
 
 
 <h2 id="vdpstrange">Q: VDP does lots of random strange things, how come?</h2>