From 8f93a2bd4c8fc0e787f9881035ce20909bcfcff3 Mon Sep 17 00:00:00 2001
From: smf- <smf-@users.noreply.github.com>
Date: Fri, 21 Feb 2014 21:43:08 +0000
Subject: [PATCH] fixed write_txc (nw)

---
 src/emu/machine/i8251.c | 11 ++---------
 src/emu/machine/i8251.h |  1 -
 2 files changed, 2 insertions(+), 10 deletions(-)

diff --git a/src/emu/machine/i8251.c b/src/emu/machine/i8251.c
index c93cf595448..500d6385a66 100644
--- a/src/emu/machine/i8251.c
+++ b/src/emu/machine/i8251.c
@@ -717,13 +717,6 @@ READ8_MEMBER(i8251_device::data_r)
 	return m_data;
 }
 
-
-void i8251_device::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
-{
-	device_serial_interface::device_timer(timer, id, param, ptr);
-}
-
-
 WRITE_LINE_MEMBER(i8251_device::write_rxd)
 {
 	if (state)
@@ -777,7 +770,7 @@ WRITE_LINE_MEMBER(i8251_device::write_txc)
 	{
 		m_txc = state;
 
-		if (m_txc)
-			receive_clock();
+		if (!m_txc)
+			transmit_clock();
 	}
 }
diff --git a/src/emu/machine/i8251.h b/src/emu/machine/i8251.h
index 06f1a13b4ff..500e33de86c 100644
--- a/src/emu/machine/i8251.h
+++ b/src/emu/machine/i8251.h
@@ -80,7 +80,6 @@ protected:
 	// device-level overrides
 	virtual void device_start();
 	virtual void device_reset();
-	virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
 
 	void update_rx_ready();
 	void update_tx_ready();