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-rw-r--r--src/devices/machine/z80sio.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/devices/machine/z80sio.cpp b/src/devices/machine/z80sio.cpp
index dfa5a13ad5e..f0a867833b8 100644
--- a/src/devices/machine/z80sio.cpp
+++ b/src/devices/machine/z80sio.cpp
@@ -1043,6 +1043,9 @@ void z80sio_channel::device_reset()
m_all_sent_delay = 0;
m_tx_in_pkt = false;
m_tx_forced_sync = true;
+ m_txd = 1;
+ out_txd_cb(1);
+ m_tx_sr = ~0;
// TODO: what happens to WAIT/READY?