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-rw-r--r--src/emu/machine/z80dart.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/emu/machine/z80dart.c b/src/emu/machine/z80dart.c
index ff90187c642..074e136f183 100644
--- a/src/emu/machine/z80dart.c
+++ b/src/emu/machine/z80dart.c
@@ -639,6 +639,7 @@ void z80dart_device::dart_channel::reset()
// disable transmitter
m_wr[5] &= ~WR5_TX_ENABLE;
m_tx_state = STATE_START;
+ m_rr[0] |= RR0_TX_BUFFER_EMPTY;
// reset external lines
RTS(1);