From f169da9d4c40402c52a23c3f35527d36d4d8013f Mon Sep 17 00:00:00 2001
From: "R. Belmont" <rb6502@users.noreply.github.com>
Date: Sat, 22 Mar 2008 04:13:39 +0000
Subject: [PATCH] Fixed crash running "kviper" BIOS.

---
 src/mame/drivers/viper.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/mame/drivers/viper.c b/src/mame/drivers/viper.c
index 28132f7d20a..1e08913c557 100644
--- a/src/mame/drivers/viper.c
+++ b/src/mame/drivers/viper.c
@@ -751,6 +751,8 @@ static DRIVER_INIT(ppp2nd)
 
 ROM_START(kviper)
 	VIPER_BIOS
+
+	ROM_REGION(0x2000, REGION_USER2, ROMREGION_ERASE00)		/* M48T58 Timekeeper NVRAM */
 ROM_END