From 0de5875a9464be69fe265d1d43c3de56006d5771 Mon Sep 17 00:00:00 2001
From: mahlemiut <mahlemiut@users.noreply.github.com>
Date: Sat, 31 May 2014 03:12:35 +0000
Subject: [PATCH] x68k: fix SRAM write protect breakage from r30715 (no
 whatsnew)

---
 src/mess/drivers/x68k.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/mess/drivers/x68k.c b/src/mess/drivers/x68k.c
index ce8b197fb4c..370244855f1 100644
--- a/src/mess/drivers/x68k.c
+++ b/src/mess/drivers/x68k.c
@@ -857,7 +857,7 @@ WRITE16_MEMBER(x68k_state::x68k_sysport_w)
 		m_sysport.keyctrl = data & 0x08;  // bit 3 = enable keyboard data transmission
 		break;
 	case 0x06:
-		m_sysport.sram_writeprotect = data;
+		COMBINE_DATA(&m_sysport.sram_writeprotect);
 		break;
 	default:
 //      logerror("SYS: [%08x] Wrote %04x to invalid or unimplemented system port %04x\n",space.device().safe_pc(),data,offset);