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-rw-r--r--src/mame/drivers/br8641.cpp32
1 files changed, 17 insertions, 15 deletions
diff --git a/src/mame/drivers/br8641.cpp b/src/mame/drivers/br8641.cpp
index 353351ea705..4b097c06da8 100644
--- a/src/mame/drivers/br8641.cpp
+++ b/src/mame/drivers/br8641.cpp
@@ -63,21 +63,23 @@ private:
required_device<beep_device> m_beep;
};
-ADDRESS_MAP_START(brandt8641_state::brandt8641_mem)
- ADDRESS_MAP_UNMAP_HIGH
- AM_RANGE(0x0000, 0x7fff) AM_ROM // 27256 at U12
- AM_RANGE(0x8000, 0x9fff) AM_RAM // 8KB static ram 6264 at U12
-ADDRESS_MAP_END
-
-ADDRESS_MAP_START(brandt8641_state::brandt8641_io)
- ADDRESS_MAP_UNMAP_HIGH
- ADDRESS_MAP_GLOBAL_MASK(0xff)
- AM_RANGE(0x04, 0x07) AM_DEVREADWRITE("pio1", z80pio_device, read, write)
- AM_RANGE(0x08, 0x0b) AM_DEVREADWRITE("pio2", z80pio_device, read, write)
- AM_RANGE(0x0c, 0x0f) AM_DEVREADWRITE("pio3", z80pio_device, read, write)
- AM_RANGE(0x10, 0x13) AM_DEVREADWRITE("ctc", z80ctc_device, read, write)
- AM_RANGE(0x1E, 0x1F) AM_WRITENOP // unknown device
-ADDRESS_MAP_END
+void brandt8641_state::brandt8641_mem(address_map &map)
+{
+ map.unmap_value_high();
+ map(0x0000, 0x7fff).rom(); // 27256 at U12
+ map(0x8000, 0x9fff).ram(); // 8KB static ram 6264 at U12
+}
+
+void brandt8641_state::brandt8641_io(address_map &map)
+{
+ map.unmap_value_high();
+ map.global_mask(0xff);
+ map(0x04, 0x07).rw(m_pio1, FUNC(z80pio_device::read), FUNC(z80pio_device::write));
+ map(0x08, 0x0b).rw(m_pio2, FUNC(z80pio_device::read), FUNC(z80pio_device::write));
+ map(0x0c, 0x0f).rw(m_pio3, FUNC(z80pio_device::read), FUNC(z80pio_device::write));
+ map(0x10, 0x13).rw(m_ctc, FUNC(z80ctc_device::read), FUNC(z80ctc_device::write));
+ map(0x1E, 0x1F).nopw(); // unknown device
+}
/* Input ports */
// No idea what each key does