diff options
Diffstat (limited to 'src/mame/drivers/by35.cpp')
-rw-r--r-- | src/mame/drivers/by35.cpp | 32 |
1 files changed, 17 insertions, 15 deletions
diff --git a/src/mame/drivers/by35.cpp b/src/mame/drivers/by35.cpp index c3b16085963..9c18e6ba952 100644 --- a/src/mame/drivers/by35.cpp +++ b/src/mame/drivers/by35.cpp @@ -241,22 +241,24 @@ protected: }; -ADDRESS_MAP_START(by35_state::by35_map) - ADDRESS_MAP_GLOBAL_MASK(0x7fff) // A15 is not connected - AM_RANGE(0x0000, 0x007f) AM_RAM - AM_RANGE(0x0088, 0x008b) AM_DEVREADWRITE("pia_u10", pia6821_device, read, write) - AM_RANGE(0x0090, 0x0093) AM_DEVREADWRITE("pia_u11", pia6821_device, read, write) - AM_RANGE(0x0200, 0x02ff) AM_RAM AM_READWRITE(nibble_nvram_r, nibble_nvram_w) AM_SHARE("nvram") - AM_RANGE(0x1000, 0x7fff) AM_ROM // AM_REGION("roms", 0 ) -ADDRESS_MAP_END - -ADDRESS_MAP_START(by35_state::nuovo_map) - AM_RANGE(0x0000, 0x07ff) AM_RAM AM_SHARE("nvram") +void by35_state::by35_map(address_map &map) +{ + map.global_mask(0x7fff); // A15 is not connected + map(0x0000, 0x007f).ram(); + map(0x0088, 0x008b).rw(m_pia_u10, FUNC(pia6821_device::read), FUNC(pia6821_device::write)); + map(0x0090, 0x0093).rw(m_pia_u11, FUNC(pia6821_device::read), FUNC(pia6821_device::write)); + map(0x0200, 0x02ff).ram().rw(this, FUNC(by35_state::nibble_nvram_r), FUNC(by35_state::nibble_nvram_w)).share("nvram"); + map(0x1000, 0x7fff).rom(); // AM_REGION("roms", 0 ) +} + +void by35_state::nuovo_map(address_map &map) +{ + map(0x0000, 0x07ff).ram().share("nvram"); // AM_RANGE(0x0000, 0x007f) AM_RAM // Schematics infer that the M6802 internal RAM is disabled. - AM_RANGE(0x0088, 0x008b) AM_DEVREADWRITE("pia_u10", pia6821_device, read, write) - AM_RANGE(0x0090, 0x0093) AM_DEVREADWRITE("pia_u11", pia6821_device, read, write) - AM_RANGE(0x1000, 0xffff) AM_ROM -ADDRESS_MAP_END + map(0x0088, 0x008b).rw(m_pia_u10, FUNC(pia6821_device::read), FUNC(pia6821_device::write)); + map(0x0090, 0x0093).rw(m_pia_u11, FUNC(pia6821_device::read), FUNC(pia6821_device::write)); + map(0x1000, 0xffff).rom(); +} |