diff options
Diffstat (limited to 'src/devices/bus/thomson/extension.cpp')
-rw-r--r-- | src/devices/bus/thomson/extension.cpp | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/src/devices/bus/thomson/extension.cpp b/src/devices/bus/thomson/extension.cpp new file mode 100644 index 00000000000..4fb2cfbb7ce --- /dev/null +++ b/src/devices/bus/thomson/extension.cpp @@ -0,0 +1,54 @@ +// license:BSD-3-Clause +// copyright-holders:Olivier Galibert + +// Generic Thomson TO*/MO* extension slot + + +#include "emu.h" +#include "extension.h" + +DEFINE_DEVICE_TYPE(THOMSON_EXTENSION, thomson_extension_device, "thomson_extension", "Thomson TO*/MO* extension port") + +thomson_extension_device::thomson_extension_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : + device_t(mconfig, THOMSON_EXTENSION, tag, owner, clock), + device_single_card_slot_interface<thomson_extension_interface>(mconfig, *this), + m_firq_callback(*this), + m_irq_callback(*this) +{ +} + +void thomson_extension_device::rom_map(address_space_installer &space, offs_t start, offs_t end) +{ + auto dev = get_card_device(); + if(dev) + space.install_device(start, end, *dev, &thomson_extension_interface::rom_map); +} + +void thomson_extension_device::io_map(address_space_installer &space, offs_t start, offs_t end) +{ + auto dev = get_card_device(); + if(dev) + space.install_device(start, end, *dev, &thomson_extension_interface::io_map); +} + +void thomson_extension_device::device_start() +{ +} + +thomson_extension_interface::thomson_extension_interface(const machine_config &mconfig, device_t &device) : + device_interface(device, "extension"), + m_ext(dynamic_cast<thomson_extension_device *>(device.owner())) +{ +} + +void thomson_extension_interface::firq_w(int state) +{ + if(m_ext) + m_ext->m_firq_callback(state); +} + +void thomson_extension_interface::irq_w(int state) +{ + if(m_ext) + m_ext->m_irq_callback(state); +} |