From 8ff2d565b0e7c7ff0fbceae3bc1edf7660b120f8 Mon Sep 17 00:00:00 2001
From: smf- <smf-@users.noreply.github.com>
Date: Sun, 6 Apr 2014 09:21:12 +0000
Subject: [PATCH] added hack for startup order issues (nw)

---
 src/emu/bus/rs232/loopback.c | 26 ++++++++++++++++++++++++++
 src/emu/bus/rs232/loopback.h |  6 +++---
 2 files changed, 29 insertions(+), 3 deletions(-)

diff --git a/src/emu/bus/rs232/loopback.c b/src/emu/bus/rs232/loopback.c
index 4cd97f8adb2..359b1cd94bd 100644
--- a/src/emu/bus/rs232/loopback.c
+++ b/src/emu/bus/rs232/loopback.c
@@ -14,3 +14,29 @@ rs232_loopback_device::rs232_loopback_device(const machine_config &mconfig, cons
 void rs232_loopback_device::device_start()
 {
 }
+
+WRITE_LINE_MEMBER( rs232_loopback_device::input_txd )
+{
+	if (started())
+	{
+		output_rxd(state);
+	}
+}
+
+WRITE_LINE_MEMBER( rs232_loopback_device::input_rts )
+{
+	if (started())
+	{
+		output_ri(state);
+		output_cts(state);
+	}
+}
+
+WRITE_LINE_MEMBER( rs232_loopback_device::input_dtr )
+{
+	if (started())
+	{
+		output_dsr(state);
+		output_dcd(state);
+	}
+}
diff --git a/src/emu/bus/rs232/loopback.h b/src/emu/bus/rs232/loopback.h
index 3459a7bf1c2..c7eaf22b994 100644
--- a/src/emu/bus/rs232/loopback.h
+++ b/src/emu/bus/rs232/loopback.h
@@ -12,9 +12,9 @@ class rs232_loopback_device : public device_t,
 public:
 	rs232_loopback_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
 
-	virtual WRITE_LINE_MEMBER( input_txd ) { output_rxd(state); }
-	virtual WRITE_LINE_MEMBER( input_rts ) { output_ri(state); output_cts(state); }
-	virtual WRITE_LINE_MEMBER( input_dtr ) { output_dsr(state); output_dcd(state); }
+	virtual WRITE_LINE_MEMBER( input_txd );
+	virtual WRITE_LINE_MEMBER( input_rts );
+	virtual WRITE_LINE_MEMBER( input_dtr );
 
 protected:
 	virtual void device_start();