From: Toni Wilen <twilen@winuae.net>
Date: Sat, 10 Feb 2024 16:48:56 +0000 (+0200)
Subject: Overscan+ HBSTRT parameter calculation fix (relative to endhpos)
X-Git-Tag: 5200~21
X-Git-Url: https://git.unchartedbackwaters.co.uk/w/?a=commitdiff_plain;h=46d533a45477e726269d46b7d0bbbead0b611aea;p=francis%2Fwinuae.git

Overscan+ HBSTRT parameter calculation fix (relative to endhpos)
---

diff --git a/drawing.cpp b/drawing.cpp
index 2af21ba9..1c024008 100644
--- a/drawing.cpp
+++ b/drawing.cpp
@@ -665,7 +665,7 @@ static void set_hblanking_limits(void)
 	} else if (currprefs.gfx_overscanmode <= OVERSCANMODE_OVERSCAN) {
 		doblank = true;
 	} else if (currprefs.gfx_overscanmode == OVERSCANMODE_BROADCAST) {
-		hbstrt = (239 << CCK_SHRES_SHIFT) - 3;
+		hbstrt = ((maxhpos_short + 12) << CCK_SHRES_SHIFT) - 3;
 		doblank = true;
 	} else if (currprefs.gfx_overscanmode >= OVERSCANMODE_ULTRA) {
 		doblank = true;