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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
VideoBrain Expansion Port emulation
Copyright MESS Team.
Visit http://mamedev.org for licensing and usage restrictions.
**********************************************************************/
#include "exp.h"
//**************************************************************************
// MACROS/CONSTANTS
//**************************************************************************
#define LOG 0
//**************************************************************************
// DEVICE DEFINITIONS
//**************************************************************************
const device_type VIDEOBRAIN_EXPANSION_SLOT = &device_creator<videobrain_expansion_slot_device>;
//**************************************************************************
// DEVICE VIDEOBRAIN_EXPANSION CARD INTERFACE
//**************************************************************************
//-------------------------------------------------
// device_videobrain_expansion_card_interface - constructor
//-------------------------------------------------
device_videobrain_expansion_card_interface::device_videobrain_expansion_card_interface(const machine_config &mconfig, device_t &device)
: device_slot_card_interface(mconfig, device),
m_rom_mask(0),
m_ram_mask(0)
{
m_slot = dynamic_cast<videobrain_expansion_slot_device *>(device.owner());
}
//-------------------------------------------------
// ~device_videobrain_expansion_card_interface - destructor
//-------------------------------------------------
device_videobrain_expansion_card_interface::~device_videobrain_expansion_card_interface()
{
}
//-------------------------------------------------
// videobrain_roml_pointer - get low ROM pointer
//-------------------------------------------------
UINT8* device_videobrain_expansion_card_interface::videobrain_rom_pointer(running_machine &machine, size_t size)
{
if (m_rom.count() == 0)
{
m_rom.resize(size);
m_rom_mask = size - 1;
}
return m_rom;
}
//-------------------------------------------------
// videobrain_ram_pointer - get RAM pointer
//-------------------------------------------------
UINT8* device_videobrain_expansion_card_interface::videobrain_ram_pointer(running_machine &machine, size_t size)
{
if (m_ram.count() == 0)
{
m_ram.resize(size);
m_ram_mask = size - 1;
}
return m_ram;
}
//**************************************************************************
// LIVE DEVICE
//**************************************************************************
//-------------------------------------------------
// videobrain_expansion_slot_device - constructor
//-------------------------------------------------
videobrain_expansion_slot_device::videobrain_expansion_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
device_t(mconfig, VIDEOBRAIN_EXPANSION_SLOT, "VideoBrain expansion port", tag, owner, clock, "videobrain_expansion_slot", __FILE__),
device_slot_interface(mconfig, *this),
device_image_interface(mconfig, *this)
{
}
//-------------------------------------------------
// videobrain_expansion_slot_device - destructor
//-------------------------------------------------
videobrain_expansion_slot_device::~videobrain_expansion_slot_device()
{
}
//-------------------------------------------------
// device_config_complete - perform any
// operations now that the configuration is
// complete
//-------------------------------------------------
void videobrain_expansion_slot_device::device_config_complete()
{
// inherit a copy of the static data
const videobrain_expansion_slot_interface *intf = reinterpret_cast<const videobrain_expansion_slot_interface *>(static_config());
if (intf != NULL)
{
*static_cast<videobrain_expansion_slot_interface *>(this) = *intf;
}
// or initialize to defaults if none provided
else
{
memset(&m_out_extres_cb, 0, sizeof(m_out_extres_cb));
}
// set brief and instance name
update_names();
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void videobrain_expansion_slot_device::device_start()
{
m_cart = dynamic_cast<device_videobrain_expansion_card_interface *>(get_card_device());
// resolve callbacks
m_out_extres_func.resolve(m_out_extres_cb, *this);
}
//-------------------------------------------------
// call_load -
//-------------------------------------------------
bool videobrain_expansion_slot_device::call_load()
{
if (m_cart)
{
size_t size = 0;
if (software_entry() == NULL)
{
size = length();
fread(m_cart->videobrain_rom_pointer(machine(), size), size);
}
else
{
size = get_software_region_length("rom");
if (size) memcpy(m_cart->videobrain_rom_pointer(machine(), size), get_software_region("rom"), size);
size = get_software_region_length("ram");
if (size) memset(m_cart->videobrain_ram_pointer(machine(), size), 0, size);
}
}
return IMAGE_INIT_PASS;
}
//-------------------------------------------------
// call_softlist_load -
//-------------------------------------------------
bool videobrain_expansion_slot_device::call_softlist_load(char *swlist, char *swname, rom_entry *start_entry)
{
load_software_part_region(this, swlist, swname, start_entry);
return true;
}
//-------------------------------------------------
// get_default_card_software -
//-------------------------------------------------
const char * videobrain_expansion_slot_device::get_default_card_software(const machine_config &config, emu_options &options)
{
return software_get_default_slot(config, options, this, "standard");
}
//-------------------------------------------------
// bo_r - cartridge data read
//-------------------------------------------------
UINT8 videobrain_expansion_slot_device::bo_r(address_space &space, offs_t offset, int cs1, int cs2)
{
UINT8 data = 0;
if (m_cart != NULL)
{
data = m_cart->videobrain_bo_r(space, offset, cs1, cs2);
}
return data;
}
//-------------------------------------------------
// bo_w - cartridge data write
//-------------------------------------------------
void videobrain_expansion_slot_device::bo_w(address_space &space, offs_t offset, UINT8 data, int cs1, int cs2)
{
if (m_cart != NULL)
{
m_cart->videobrain_bo_w(space, offset, data, cs1, cs2);
}
}
READ8_MEMBER( videobrain_expansion_slot_device::cs1_r ) { return bo_r(space, offset + 0x1000, 0, 1); }
WRITE8_MEMBER( videobrain_expansion_slot_device::cs1_w ) { bo_w(space, offset + 0x1000, data, 0, 1); }
READ8_MEMBER( videobrain_expansion_slot_device::cs2_r ) { return bo_r(space, offset + 0x1800, 1, 0); }
WRITE8_MEMBER( videobrain_expansion_slot_device::cs2_w ) { bo_w(space, offset + 0x1800, data, 1, 0); }
READ8_MEMBER( videobrain_expansion_slot_device::unmap_r ) { return bo_r(space, offset + 0x3000, 1, 0); }
WRITE8_MEMBER( videobrain_expansion_slot_device::unmap_w ) { bo_w(space, offset + 0x3000, data, 1, 0); }
WRITE_LINE_MEMBER( videobrain_expansion_slot_device::extres_w ) { m_out_extres_func(state); }
//-------------------------------------------------
// SLOT_INTERFACE_START( vidbrain_expansion_cards )
//-------------------------------------------------
// slot devices
#include "std.h"
#include "money_minder.h"
#include "timeshare.h"
SLOT_INTERFACE_START( vidbrain_expansion_cards )
SLOT_INTERFACE_INTERNAL("standard", VB_STD)
SLOT_INTERFACE_INTERNAL("moneyminder", VB_MONEY_MINDER)
SLOT_INTERFACE_INTERNAL("timeshare", VB_TIMESHARE)
SLOT_INTERFACE_END
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