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author Dirk Best <mail@dirk-best.de>2017-10-24 14:19:06 +0200
committer Dirk Best <mail@dirk-best.de>2017-10-24 14:19:20 +0200
commit2cbe3d3d4d4d7ffebe12bc8bddd06baa9e4ef4fd (patch)
tree1d4b3aeaf40b782324c988f50afdc5f0b5edce53
parent37619d7ca2158fa2c643e1129899bfa9d10fafff (diff)
einstein: Fix MT #6723
-rw-r--r--src/mame/drivers/einstein.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/mame/drivers/einstein.cpp b/src/mame/drivers/einstein.cpp
index a736d2e7fee..701253a1978 100644
--- a/src/mame/drivers/einstein.cpp
+++ b/src/mame/drivers/einstein.cpp
@@ -464,6 +464,7 @@ ADDRESS_MAP_END
/* The I/O ports are decoded into 8 blocks using address lines A3 to A7 */
static ADDRESS_MAP_START( einstein_io, AS_IO, 8, einstein_state )
+ ADDRESS_MAP_UNMAP_HIGH
/* block 0, ay8910 psg */
AM_RANGE(0x02, 0x02) AM_MIRROR(0xff04) AM_DEVREADWRITE(IC_I030, ay8910_device, data_r, address_w)
AM_RANGE(0x03, 0x03) AM_MIRROR(0xff04) AM_DEVWRITE(IC_I030, ay8910_device, data_w)