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-rw-r--r--src/devices/machine/at.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/devices/machine/at.cpp b/src/devices/machine/at.cpp
index 22aab4ee090..8decc967081 100644
--- a/src/devices/machine/at.cpp
+++ b/src/devices/machine/at.cpp
@@ -156,7 +156,7 @@ void at_mb_device::map(address_map &map)
map(0x0061, 0x0061).rw(FUNC(at_mb_device::portb_r), FUNC(at_mb_device::portb_w));
map(0x0060, 0x0060).rw("keybc", FUNC(at_keyboard_controller_device::data_r), FUNC(at_keyboard_controller_device::data_w));
map(0x0064, 0x0064).rw("keybc", FUNC(at_keyboard_controller_device::status_r), FUNC(at_keyboard_controller_device::command_w));
- map(0x0070, 0x007f).w(m_mc146818, FUNC(at_mb_device::rtcas_nmi_w)).umask16(0x00ff);
+ map(0x0070, 0x007f).w(FUNC(at_mb_device::rtcas_nmi_w)).umask16(0x00ff);
map(0x0070, 0x007f).rw(m_mc146818, FUNC(mc146818_device::data_r), FUNC(mc146818_device::data_w)).umask16(0xff00);
map(0x0080, 0x009f).rw(FUNC(at_mb_device::page8_r), FUNC(at_mb_device::page8_w)).umask16(0xffff);
map(0x00a0, 0x00bf).rw("pic8259_slave", FUNC(pic8259_device::read), FUNC(pic8259_device::write)).umask16(0xffff);