From 67c8860da64f748ab60b3ae614c8a93a68c32700 Mon Sep 17 00:00:00 2001
From: Toni Wilen <twilen@winuae.net>
Date: Wed, 27 Mar 2024 20:56:33 +0200
Subject: [PATCH] If programmed VBSTRT == VBSTOP: vblank interrupt stops.

---
 custom.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/custom.cpp b/custom.cpp
index 90fa66c3..2ebe4d20 100644
--- a/custom.cpp
+++ b/custom.cpp
@@ -14030,6 +14030,9 @@ static void hsync_handler_post(bool onvsync)
 				vbstop_m = vpos;
 				vb_end_line = true;
 				vb_state = false;
+				if (vbstrt == vpos) {
+					vb_start_line = 0;
+				}
 			}
 		}
 
-- 
2.47.3