diff options
Diffstat (limited to 'src/devices/bus/cbm2/user.cpp')
-rw-r--r-- | src/devices/bus/cbm2/user.cpp | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/src/devices/bus/cbm2/user.cpp b/src/devices/bus/cbm2/user.cpp new file mode 100644 index 00000000000..6383f39b061 --- /dev/null +++ b/src/devices/bus/cbm2/user.cpp @@ -0,0 +1,77 @@ +// license:BSD-3-Clause +// copyright-holders:Curt Coder +/********************************************************************** + + Commodore CBM-II User Port emulation + +**********************************************************************/ + +#include "user.h" + + + +//************************************************************************** +// DEVICE DEFINITIONS +//************************************************************************** + +const device_type CBM2_USER_PORT = &device_creator<cbm2_user_port_device>; + + + +//************************************************************************** +// CARD INTERFACE +//************************************************************************** + +//------------------------------------------------- +// device_cbm2_user_port_interface - constructor +//------------------------------------------------- + +device_cbm2_user_port_interface::device_cbm2_user_port_interface(const machine_config &mconfig, device_t &device) : + device_slot_card_interface(mconfig,device) +{ + m_slot = dynamic_cast<cbm2_user_port_device *>(device.owner()); +} + + + +//************************************************************************** +// LIVE DEVICE +//************************************************************************** + +//------------------------------------------------- +// cbm2_user_port_device - constructor +//------------------------------------------------- + +cbm2_user_port_device::cbm2_user_port_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : + device_t(mconfig, CBM2_USER_PORT, "CBM2 user port", tag, owner, clock, "cbm2_user_port", __FILE__), + device_slot_interface(mconfig, *this), + m_write_irq(*this), + m_write_sp(*this), + m_write_cnt(*this), + m_write_flag(*this) +{ +} + + +//------------------------------------------------- +// device_start - device-specific startup +//------------------------------------------------- + +void cbm2_user_port_device::device_start() +{ + m_card = dynamic_cast<device_cbm2_user_port_interface *>(get_card_device()); + + // resolve callbacks + m_write_irq.resolve_safe(); + m_write_sp.resolve_safe(); + m_write_cnt.resolve_safe(); + m_write_flag.resolve_safe(); +} + + +//------------------------------------------------- +// SLOT_INTERFACE( cbm2_user_port_cards ) +//------------------------------------------------- + +SLOT_INTERFACE_START( cbm2_user_port_cards ) +SLOT_INTERFACE_END |