diff options
Diffstat (limited to 'src/mess/machine/cpcexp.c')
-rw-r--r-- | src/mess/machine/cpcexp.c | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/src/mess/machine/cpcexp.c b/src/mess/machine/cpcexp.c new file mode 100644 index 00000000000..45af07348ed --- /dev/null +++ b/src/mess/machine/cpcexp.c @@ -0,0 +1,109 @@ +/* + * cpcexp.c -- Amstrad CPC Expansion port + * + * Created on: 16/07/2011 + * + */ + + +#include "emu.h" +#include "emuopts.h" +#include "machine/cpcexp.h" + + +//************************************************************************** +// GLOBAL VARIABLES +//************************************************************************** + +const device_type CPC_EXPANSION_SLOT = &device_creator<cpc_expansion_slot_device>; + + +//************************************************************************** +// DEVICE CPC_EXPANSION CARD INTERFACE +//************************************************************************** + + +device_cpc_expansion_card_interface::device_cpc_expansion_card_interface(const machine_config &mconfig, device_t &device) + : device_slot_card_interface(mconfig,device) +{ +} + + +device_cpc_expansion_card_interface::~device_cpc_expansion_card_interface() +{ +} + + + +//************************************************************************** +// LIVE DEVICE +//************************************************************************** + +cpc_expansion_slot_device::cpc_expansion_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) : + device_t(mconfig, CPC_EXPANSION_SLOT, "Amstrad CPC expansion port", tag, owner, clock), + device_slot_interface(mconfig, *this) +{ +} + +cpc_expansion_slot_device::~cpc_expansion_slot_device() +{ +} + +//------------------------------------------------- +// device_config_complete - perform any +// operations now that the configuration is +// complete +//------------------------------------------------- + +void cpc_expansion_slot_device::device_config_complete() +{ + // inherit a copy of the static data + const cpc_expansion_slot_interface *intf = reinterpret_cast<const cpc_expansion_slot_interface *>(static_config()); + if (intf != NULL) + { + *static_cast<cpc_expansion_slot_interface *>(this) = *intf; + } + + // or initialize to defaults if none provided + else + { + memset(&m_out_irq_cb, 0, sizeof(m_out_irq_cb)); + memset(&m_out_nmi_cb, 0, sizeof(m_out_nmi_cb)); + memset(&m_out_reset_cb, 0, sizeof(m_out_reset_cb)); + memset(&m_out_romdis_cb, 0, sizeof(m_out_romdis_cb)); + memset(&m_out_romen_cb, 0, sizeof(m_out_romen_cb)); + } +} + + +//------------------------------------------------- +// device_start - device-specific startup +//------------------------------------------------- + +void cpc_expansion_slot_device::device_start() +{ + m_card = dynamic_cast<device_cpc_expansion_card_interface *>(get_card_device()); + + // resolve callbacks + m_out_irq_func.resolve(m_out_irq_cb, *this); + m_out_nmi_func.resolve(m_out_nmi_cb, *this); + m_out_reset_func.resolve(m_out_reset_cb, *this); + m_out_romdis_func.resolve(m_out_romdis_cb, *this); + m_out_romen_func.resolve(m_out_romen_cb, *this); +} + + +//------------------------------------------------- +// device_reset - device-specific reset +//------------------------------------------------- + +void cpc_expansion_slot_device::device_reset() +{ +} + + +WRITE_LINE_MEMBER( cpc_expansion_slot_device::irq_w ) { m_out_irq_func(state); } +WRITE_LINE_MEMBER( cpc_expansion_slot_device::nmi_w ) { m_out_nmi_func(state); } +WRITE_LINE_MEMBER( cpc_expansion_slot_device::reset_w ) { m_out_reset_func(state); } +WRITE_LINE_MEMBER( cpc_expansion_slot_device::romdis_w ) { m_out_romdis_func(state); } +WRITE_LINE_MEMBER( cpc_expansion_slot_device::romen_w ) { m_out_romen_func(state); } |