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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
ColecoVision cartridge port emulation
Copyright MESS Team.
Visit http://mamedev.org for licensing and usage restrictions.
**********************************************************************/
#include "exp.h"
//**************************************************************************
// DEVICE DEFINITIONS
//**************************************************************************
const device_type COLECOVISION_CARTRIDGE_SLOT = &device_creator<colecovision_cartridge_slot_device>;
//**************************************************************************
// DEVICE C64_EXPANSION CARD INTERFACE
//**************************************************************************
//-------------------------------------------------
// device_colecovision_cartridge_interface - constructor
//-------------------------------------------------
device_colecovision_cartridge_interface::device_colecovision_cartridge_interface(const machine_config &mconfig, device_t &device) :
device_slot_card_interface(mconfig, device),
m_rom(NULL),
m_rom_size(0)
{
m_slot = dynamic_cast<colecovision_cartridge_slot_device *>(device.owner());
}
void device_colecovision_cartridge_interface::rom_alloc(size_t size)
{
if (m_rom == NULL)
{
m_rom = device().machine().memory().region_alloc("coleco_cart:rom", size, 1, ENDIANNESS_LITTLE)->base();
m_rom_size = size;
}
}
//**************************************************************************
// LIVE DEVICE
//**************************************************************************
//-------------------------------------------------
// colecovision_cartridge_slot_device - constructor
//-------------------------------------------------
colecovision_cartridge_slot_device::colecovision_cartridge_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
device_t(mconfig, COLECOVISION_CARTRIDGE_SLOT, "ColecoVision cartridge port", tag, owner, clock, "coleco_cartridge_port", __FILE__),
device_slot_interface(mconfig, *this),
device_image_interface(mconfig, *this)
{
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void colecovision_cartridge_slot_device::device_start()
{
m_card = dynamic_cast<device_colecovision_cartridge_interface *>(get_card_device());
}
//-------------------------------------------------
// call_load -
//-------------------------------------------------
bool colecovision_cartridge_slot_device::call_load()
{
if (m_card)
{
size_t size = (software_entry() == NULL) ? length() : get_software_region_length("rom");
m_card->rom_alloc(size);
if (software_entry() == NULL)
{
fread(m_card->m_rom, size);
}
else
{
// TODO 8000/a000/c000/e000
memcpy(m_card->m_rom, get_software_region("rom"), size);
}
}
return IMAGE_INIT_PASS;
}
//-------------------------------------------------
// call_softlist_load -
//-------------------------------------------------
bool colecovision_cartridge_slot_device::call_softlist_load(software_list_device &swlist, const char *swname, const rom_entry *start_entry)
{
load_software_part_region(*this, swlist, swname, start_entry);
return true;
}
//-------------------------------------------------
// get_default_card_software -
//-------------------------------------------------
void colecovision_cartridge_slot_device::get_default_card_software(astring &result)
{
software_get_default_slot(result, "standard");
}
//-------------------------------------------------
// bd_r - cartridge data read
//-------------------------------------------------
UINT8 colecovision_cartridge_slot_device::bd_r(address_space &space, offs_t offset, UINT8 data, int _8000, int _a000, int _c000, int _e000)
{
if (m_card != NULL)
{
data = m_card->bd_r(space, offset, data, _8000, _a000, _c000, _e000);
}
return data;
}
//-------------------------------------------------
// SLOT_INTERFACE( colecovision_cartridges )
//-------------------------------------------------
#include "std.h"
SLOT_INTERFACE_START( colecovision_cartridges )
// the following need ROMs from the software list
SLOT_INTERFACE_INTERNAL("standard", COLECOVISION_STANDARD)
SLOT_INTERFACE_END
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