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Diffstat (limited to 'src/mame/drivers/nds.cpp')
-rw-r--r--src/mame/drivers/nds.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mame/drivers/nds.cpp b/src/mame/drivers/nds.cpp
index c9844a0702b..f418b5465e8 100644
--- a/src/mame/drivers/nds.cpp
+++ b/src/mame/drivers/nds.cpp
@@ -113,7 +113,7 @@ ADDRESS_MAP_END
static ADDRESS_MAP_START( nds_arm9_map, AS_PROGRAM, 32, nds_state )
AM_RANGE(0x00000000, 0x00007fff) AM_RAM // Instruction TCM
- AM_RANGE(0x02000000, 0x023fffff) AM_RAM AM_SHARE("mainram")
+ AM_RANGE(0x02000000, 0x023fffff) AM_RAM AM_MIRROR(0x00400000) AM_SHARE("mainram")
AM_RANGE(0x04000000, 0x0400ffff) AM_READWRITE(arm9_io_r, arm9_io_w)
AM_RANGE(0xffff0000, 0xffff0fff) AM_ROM AM_MIRROR(0x1000) AM_REGION("arm9", 0)
ADDRESS_MAP_END