diff options
Diffstat (limited to 'src/devices/bus/vtech/memexp/rtty.cpp')
-rw-r--r-- | src/devices/bus/vtech/memexp/rtty.cpp | 38 |
1 files changed, 18 insertions, 20 deletions
diff --git a/src/devices/bus/vtech/memexp/rtty.cpp b/src/devices/bus/vtech/memexp/rtty.cpp index 96e394bfb4d..6a0f96c58a8 100644 --- a/src/devices/bus/vtech/memexp/rtty.cpp +++ b/src/devices/bus/vtech/memexp/rtty.cpp @@ -17,6 +17,19 @@ DEFINE_DEVICE_TYPE(VTECH_RTTY_INTERFACE, vtech_rtty_interface_device, "vtech_rtty", "DSE VZ-200/300 RTTY Interface") //------------------------------------------------- +// mem_map - memory space address map +//------------------------------------------------- + +void vtech_rtty_interface_device::mem_map(address_map &map) +{ + map.unmap_value_high(); + map(0x4000, 0x4fff).rom().region("software", 0); + map(0x5000, 0x5000).mirror(0x7ff).r(FUNC(vtech_rtty_interface_device::receive_data_r)); + map(0x5800, 0x5800).mirror(0x7ff).w(FUNC(vtech_rtty_interface_device::transmit_data_w)); + map(0x6000, 0x6000).mirror(0x7ff).w(FUNC(vtech_rtty_interface_device::relay_w)); +} + +//------------------------------------------------- // rom_region - device-specific ROM region //------------------------------------------------- @@ -40,8 +53,7 @@ const tiny_rom_entry *vtech_rtty_interface_device::device_rom_region() const //------------------------------------------------- vtech_rtty_interface_device::vtech_rtty_interface_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : - device_t(mconfig, VTECH_RTTY_INTERFACE, tag, owner, clock), - device_vtech_memexp_interface(mconfig, *this) + vtech_memexp_device(mconfig, VTECH_RTTY_INTERFACE, tag, owner, clock) { } @@ -51,21 +63,7 @@ vtech_rtty_interface_device::vtech_rtty_interface_device(const machine_config &m void vtech_rtty_interface_device::device_start() { -} - -//------------------------------------------------- -// device_reset - device-specific reset -//------------------------------------------------- - -void vtech_rtty_interface_device::device_reset() -{ - // program - program_space().install_rom(0x4000, 0x4fff, 0x1000, memregion("software")->base()); - - // data - program_space().install_read_handler(0x5000, 0x57ff, read8_delegate(FUNC(vtech_rtty_interface_device::receive_data_r), this)); - program_space().install_write_handler(0x5800, 0x5fff, write8_delegate(FUNC(vtech_rtty_interface_device::transmit_data_w), this)); - program_space().install_write_handler(0x6000, 0x67ff, write8_delegate(FUNC(vtech_rtty_interface_device::relay_w), this)); + vtech_memexp_device::device_start(); } @@ -73,17 +71,17 @@ void vtech_rtty_interface_device::device_reset() // IMPLEMENTATION //************************************************************************** -READ8_MEMBER( vtech_rtty_interface_device::receive_data_r ) +uint8_t vtech_rtty_interface_device::receive_data_r() { return 0xff; } -WRITE8_MEMBER( vtech_rtty_interface_device::transmit_data_w ) +void vtech_rtty_interface_device::transmit_data_w(uint8_t data) { logerror("transmit_w: %d\n", BIT(data, 7)); } -WRITE8_MEMBER( vtech_rtty_interface_device::relay_w ) +void vtech_rtty_interface_device::relay_w(uint8_t data) { logerror("relay_w: %d\n", BIT(data, 7)); } |