// license:BSD-3-Clause // copyright-holders:Curt Coder /********************************************************************** Commodore CBM-II User Port emulation Copyright MESS Team. Visit http://mamedev.org for licensing and usage restrictions. **********************************************************************/ #include "user.h" //************************************************************************** // GLOBAL VARIABLES //************************************************************************** const device_type CBM2_USER_PORT = &device_creator; //************************************************************************** // 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(device.owner()); } //------------------------------------------------- // ~device_cbm2_user_port_interface - destructor //------------------------------------------------- device_cbm2_user_port_interface::~device_cbm2_user_port_interface() { } //************************************************************************** // 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) { } //------------------------------------------------- // cbm2_user_port_device - destructor //------------------------------------------------- cbm2_user_port_device::~cbm2_user_port_device() { } //------------------------------------------------- // device_config_complete - perform any // operations now that the configuration is // complete //------------------------------------------------- void cbm2_user_port_device::device_config_complete() { // inherit a copy of the static data const cbm2_user_port_interface *intf = reinterpret_cast(static_config()); if (intf != NULL) { *static_cast(this) = *intf; } // or initialize to defaults if none provided else { memset(&m_out_irq_cb, 0, sizeof(m_out_irq_cb)); memset(&m_out_sp_cb, 0, sizeof(m_out_sp_cb)); memset(&m_out_cnt_cb, 0, sizeof(m_out_cnt_cb)); memset(&m_out_flag_cb, 0, sizeof(m_out_flag_cb)); } } //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- void cbm2_user_port_device::device_start() { m_card = dynamic_cast(get_card_device()); // resolve callbacks m_out_irq_func.resolve(m_out_irq_cb, *this); m_out_sp_func.resolve(m_out_sp_cb, *this); m_out_cnt_func.resolve(m_out_cnt_cb, *this); m_out_flag_func.resolve(m_out_flag_cb, *this); } READ8_MEMBER( cbm2_user_port_device::d1_r ) { UINT8 data = 0xff; if (m_card != NULL) data = m_card->cbm2_d1_r(space, offset); return data; } WRITE8_MEMBER( cbm2_user_port_device::d1_w ) { if (m_card != NULL) m_card->cbm2_d1_w(space, offset, data); } READ8_MEMBER( cbm2_user_port_device::d2_r ) { UINT8 data = 0xff; if (m_card != NULL) data = m_card->cbm2_d2_r(space, offset); return data; } WRITE8_MEMBER( cbm2_user_port_device::d2_w ) { if (m_card != NULL) m_card->cbm2_d2_w(space, offset, data); } READ_LINE_MEMBER( cbm2_user_port_device::pb2_r ) { return m_card ? m_card->cbm2_pb2_r() : 1; } WRITE_LINE_MEMBER( cbm2_user_port_device::pb2_w ) { if (m_card != NULL) m_card->cbm2_pb2_w(state); } READ_LINE_MEMBER( cbm2_user_port_device::pb3_r ) { return m_card ? m_card->cbm2_pb3_r() : 1; } WRITE_LINE_MEMBER( cbm2_user_port_device::pb3_w ) { if (m_card != NULL) m_card->cbm2_pb3_w(state); } WRITE_LINE_MEMBER( cbm2_user_port_device::pc_w ) { if (m_card != NULL) m_card->cbm2_pc_w(state); } WRITE_LINE_MEMBER( cbm2_user_port_device::cnt_w ) { if (m_card != NULL) m_card->cbm2_cnt_w(state); } WRITE_LINE_MEMBER( cbm2_user_port_device::sp_w ) { if (m_card != NULL) m_card->cbm2_sp_w(state); } //------------------------------------------------- // SLOT_INTERFACE( cbm2_user_port_cards ) //------------------------------------------------- SLOT_INTERFACE_START( cbm2_user_port_cards ) SLOT_INTERFACE_END