From: Toni Wilen <twilen@winuae.net>
Date: Wed, 16 Jul 2025 08:18:59 +0000 (+0300)
Subject: vpos + 1 is last line only if previous line wasn't last line (line jump)
X-Git-Url: https://git.unchartedbackwaters.co.uk/w/?a=commitdiff_plain;h=8bfc737d48402a4ef48c2ac79450f76b2e579e30;p=francis%2Fwinuae.git

vpos + 1 is last line only if previous line wasn't last line (line jump)
---

diff --git a/custom.cpp b/custom.cpp
index f9a98039..81991b4e 100644
--- a/custom.cpp
+++ b/custom.cpp
@@ -867,7 +867,7 @@ static void setclr(uae_u16 *p, uae_u16 val)
 // is last display line?
 static bool is_last_line(void)
 {
-	return  vpos == vsync_startline || vpos + 1 == vsync_startline;
+	return  vpos == vsync_startline || (vpos + 1 == vsync_startline && vpos_prev + 1 != vsync_startline - 1);
 }
 
 static void docols(struct color_entry *colentry)