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-rw-r--r--src/emu/emumem.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/emu/emumem.cpp b/src/emu/emumem.cpp
index 47c89bd8892..9e20f0efa1b 100644
--- a/src/emu/emumem.cpp
+++ b/src/emu/emumem.cpp
@@ -2672,7 +2672,7 @@ void address_space::install_write_handler(offs_t addrstart, offs_t addrend, offs
{
offs_t nstart, nend, nmask, nmirror;
check_optimize_all("install_write_handler", addrstart, addrend, addrmask, addrmirror, addrselect, nstart, nend, nmask, nmirror);
- write().handler_map_range(nstart, nend, nmask, addrmirror, unitmask).set_delegate(handler);
+ write().handler_map_range(nstart, nend, nmask, mmirror, unitmask).set_delegate(handler);
generate_memdump(machine());
}