From 30b00e6dcce19a98969d78a0b27eb6f03405a857 Mon Sep 17 00:00:00 2001
From: AJR <ajrhacker@users.noreply.github.com>
Date: Wed, 7 Nov 2018 19:15:21 -0500
Subject: [PATCH] i8251: Implement send break command

---
 src/devices/machine/i8251.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/devices/machine/i8251.cpp b/src/devices/machine/i8251.cpp
index 69883c412af..27d8ed7e641 100644
--- a/src/devices/machine/i8251.cpp
+++ b/src/devices/machine/i8251.cpp
@@ -268,8 +268,8 @@ void i8251_device::update_tx_empty()
 {
 	if (m_status & I8251_STATUS_TX_EMPTY)
 	{
-		/* tx is in marking state (high) when tx empty! */
-		m_txd_handler(1);
+		// return TxD to marking state (high) if not sending break character
+		m_txd_handler(!BIT(m_command, 3));
 	}
 
 	m_txempty_handler((m_status & I8251_STATUS_TX_EMPTY) != 0);