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Diffstat (limited to 'src/mame/drivers/ibm6580.cpp')
-rw-r--r--src/mame/drivers/ibm6580.cpp6
1 files changed, 2 insertions, 4 deletions
diff --git a/src/mame/drivers/ibm6580.cpp b/src/mame/drivers/ibm6580.cpp
index 1abb11bda65..9512ff266da 100644
--- a/src/mame/drivers/ibm6580.cpp
+++ b/src/mame/drivers/ibm6580.cpp
@@ -701,10 +701,8 @@ void ibm6580_state::ibm6580_io(address_map &map)
map(0x0040, 0x005f).rw(FUNC(ibm6580_state::p40_r), FUNC(ibm6580_state::p40_w)).umask16(0x00ff);
map(0x0070, 0x007f).unmaprw();
map(0x0120, 0x0127).rw(m_pit8253, FUNC(pit8253_device::read), FUNC(pit8253_device::write)).umask16(0x00ff);
- map(0x0140, 0x0140).rw("upd8251a", FUNC(i8251_device::data_r), FUNC(i8251_device::data_w));
- map(0x0142, 0x0142).rw("upd8251a", FUNC(i8251_device::status_r), FUNC(i8251_device::control_w));
- map(0x0160, 0x0160).rw("upd8251b", FUNC(i8251_device::data_r), FUNC(i8251_device::data_w));
- map(0x0162, 0x0162).rw("upd8251b", FUNC(i8251_device::status_r), FUNC(i8251_device::control_w));
+ map(0x0140, 0x0143).rw("upd8251a", FUNC(i8251_device::read), FUNC(i8251_device::write)).umask16(0x00ff);
+ map(0x0160, 0x0163).rw("upd8251b", FUNC(i8251_device::read), FUNC(i8251_device::write)).umask16(0x00ff);
map(0x4000, 0x400f).unmaprw();
map(0x5000, 0x500f).unmaprw();
map(0x6000, 0x601f).unmaprw();