From 769e7eaf6ee560e55b1f676551bf54a9d26ffcae Mon Sep 17 00:00:00 2001
From: Scott Stone <tafoid@users.noreply.github.com>
Date: Wed, 5 Oct 2011 20:10:59 +0000
Subject: [PATCH] Workaround for problem m4/v4 sets which drop to command-line
 (nw)

---
 src/mame/drivers/mpu4.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/mame/drivers/mpu4.c b/src/mame/drivers/mpu4.c
index 247d4c41e83..a2c12f4b270 100644
--- a/src/mame/drivers/mpu4.c
+++ b/src/mame/drivers/mpu4.c
@@ -2436,6 +2436,7 @@ static READ8_HANDLER( characteriser_r )
 	{
 		logerror("No Characteriser Table @ %04x", cpu_get_previouspc(&space->device()));
 
+#if 0
 		/* a cheat ... many early games use a standard check */
 		int addr = cpu_get_reg(&space->device(), M6809_X);
 		UINT8 ret = space->read_byte(addr);
@@ -2444,6 +2445,8 @@ static READ8_HANDLER( characteriser_r )
 		logerror("\n");
 
 		return ret;
+#endif
+		return 0x00;
 	}
 
 	LOG_CHR(("Characteriser read offset %02X \n",offset));