From 332d04f2e6500eb7557e89ce28705bf28724f850 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C3=ABl=20Banaan=20Ananas?=
 <happppp@users.noreply.github.com>
Date: Tue, 2 Oct 2012 19:34:14 +0000
Subject: [PATCH] fix catchp crash

---
 src/mame/includes/avalnche.h | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/src/mame/includes/avalnche.h b/src/mame/includes/avalnche.h
index eeef5490022..84bd4f2200d 100644
--- a/src/mame/includes/avalnche.h
+++ b/src/mame/includes/avalnche.h
@@ -11,15 +11,16 @@ class avalnche_state : public driver_device
 {
 public:
 	avalnche_state(const machine_config &mconfig, device_type type, const char *tag)
-		: driver_device(mconfig, type, tag) ,
+		: driver_device(mconfig, type, tag),
 		m_videoram(*this, "videoram"),
-		m_discrete(*this, "discrete") { }
+		m_discrete(*this, "discrete")
+	{ }
 
-	/* video-related */
 	required_shared_ptr<UINT8> m_videoram;
-	required_device<discrete_device> m_discrete;
+	optional_device<discrete_device> m_discrete;
+
+	UINT8 m_avalance_video_inverted;
 
-	UINT8    m_avalance_video_inverted;
 	DECLARE_WRITE8_MEMBER(avalance_video_invert_w);
 	DECLARE_WRITE8_MEMBER(catch_coin_counter_w);
 	DECLARE_WRITE8_MEMBER(avalance_credit_1_lamp_w);
@@ -34,6 +35,8 @@ public:
 	DECLARE_WRITE8_MEMBER(catch_audio_w);
 };
 
+
 /*----------- defined in audio/avalnche.c -----------*/
+
 DISCRETE_SOUND_EXTERN( avalnche );