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Diffstat (limited to 'src/mame/drivers/system1.cpp')
-rw-r--r--src/mame/drivers/system1.cpp6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/mame/drivers/system1.cpp b/src/mame/drivers/system1.cpp
index a3697e9df01..5eebb7b7c59 100644
--- a/src/mame/drivers/system1.cpp
+++ b/src/mame/drivers/system1.cpp
@@ -5290,9 +5290,9 @@ DRIVER_INIT_MEMBER(system1_state,nobb)
DRIVER_INIT_CALL(bank44);
iospace.install_read_handler(0x1c, 0x1c, read8_delegate(FUNC(system1_state::nobb_inport1c_r),this));
- iospace.install_read_handler(0x22, 0x22, read8_delegate(FUNC(system1_state::nobb_inport22_r),this));
- iospace.install_read_handler(0x23, 0x23, read8_delegate(FUNC(system1_state::nobb_inport23_r),this));
- iospace.install_write_handler(0x24, 0x24, write8_delegate(FUNC(system1_state::nobb_outport24_w),this));
+ iospace.install_read_handler(0x02, 0x02, read8_delegate(FUNC(system1_state::nobb_inport22_r),this));
+ iospace.install_read_handler(0x03, 0x03, read8_delegate(FUNC(system1_state::nobb_inport23_r),this));
+ iospace.install_write_handler(0x04, 0x04, write8_delegate(FUNC(system1_state::nobb_outport24_w),this));
}