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-rw-r--r--src/mame/drivers/mbee.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/mame/drivers/mbee.cpp b/src/mame/drivers/mbee.cpp
index 4c660669f64..6fa3a0f031f 100644
--- a/src/mame/drivers/mbee.cpp
+++ b/src/mame/drivers/mbee.cpp
@@ -277,6 +277,7 @@ void mbee_state::mbeett_io(address_map &map)
map(0x0109, 0x0109).mirror(0xfe00).r(FUNC(mbee_state::speed_high_r));
map(0x000a, 0x000a).mirror(0xfe00).rw(FUNC(mbee_state::telcom_low_r), FUNC(mbee_state::port0a_w));
map(0x010a, 0x010a).mirror(0xfe00).rw(FUNC(mbee_state::telcom_high_r), FUNC(mbee_state::port0a_w));
+ map(0x0068, 0x006f).mirror(0xff00).noprw(); // swallow i/o to SCC which was never fitted to production machines
}
void mbee_state::mbee56_io(address_map &map)