From a368317b1bc1ae450e959c20eef6d7eb34c32986 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C3=ABl=20Banaan=20Ananas?=
 <happppp@users.noreply.github.com>
Date: Sat, 21 Jan 2012 15:07:38 +0000
Subject: [PATCH] fix detatwin missing sprites

---
 src/mame/video/tmnt.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/mame/video/tmnt.c b/src/mame/video/tmnt.c
index 05963a1a343..ca975e53824 100644
--- a/src/mame/video/tmnt.c
+++ b/src/mame/video/tmnt.c
@@ -833,8 +833,8 @@ SCREEN_UPDATE_IND16( thndrx2 )
 
 SCREEN_VBLANK( blswhstl )
 {
-	// on falling edge
-	if (!vblank_on)
+	// on rising edge
+	if (vblank_on)
 	{
 		tmnt_state *state = screen.machine().driver_data<tmnt_state>();
 		k053245_clear_buffer(state->m_k053245);