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-rw-r--r--src/devices/bus/hp_dio/hp_dio.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/devices/bus/hp_dio/hp_dio.h b/src/devices/bus/hp_dio/hp_dio.h
index 6344f95b3a8..11738a5fc26 100644
--- a/src/devices/bus/hp_dio/hp_dio.h
+++ b/src/devices/bus/hp_dio/hp_dio.h
@@ -77,7 +77,7 @@ public:
auto irq6_out_cb() { return m_irq6_out_cb.bind(); }
auto irq7_out_cb() { return m_irq7_out_cb.bind(); }
- void install_memory(offs_t start, offs_t end, read16_delegate rhandler, write16_delegate whandler);
+ template<typename R, typename W> void install_memory(offs_t start, offs_t end, R rhandler, W whandler);
// DANGER: these will currently produce different results for a DIO-I card on DIO-I and DIO-II systems
// due to the varying bus widths. Using all install_memory() shields you from this problem.