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// license:GPL-2.0+
// copyright-holders:Dirk Best
/***************************************************************************
EACA Colour Genie Expansion Slot
50-pin slot
1 GND 26 /MREQ
2 A8 27 /WR
3 A7 28 /C4
4 A6 29 (not used)
5 A9 30 /C1
6 A5 31 BD3
7 A4 32 /C3
8 A3 33 (not used)
9 A10 34 /C2
10 A2 35 DB6
11 A11 36 /RD
12 A1 37 BD4
13 A0 38 (not used)
14 A12 39 BD7
15 A14 40 (not used)
16 A13 41 BD5
17 /RFSH 42 (not useD)
18 A15 43 BD0
19 /INT 44 (not used)
20 /BUSRQ 45 BD2
21 /NMI 46 /RESET
22 /WAIT 47 /M1
23 /HALT 48 /IORQ
24 /BUSAK 49 BD1
25 /ROMDIS 50 +5V
***************************************************************************/
#pragma once
#ifndef __CGENIE_EXPANSION_H__
#define __CGENIE_EXPANSION_H__
#include "emu.h"
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
#define MCFG_EXPANSION_SLOT_ADD(_tag) \
MCFG_DEVICE_ADD(_tag, EXPANSION_SLOT, 0) \
MCFG_DEVICE_SLOT_INTERFACE(expansion_slot_carts, NULL, false)
#define MCFG_EXPANSION_SLOT_INT_HANDLER(_devcb) \
devcb = &expansion_slot_device::set_int_handler(*device, DEVCB_##_devcb);
#define MCFG_EXPANSION_SLOT_NMI_HANDLER(_devcb) \
devcb = &expansion_slot_device::set_nmi_handler(*device, DEVCB_##_devcb);
#define MCFG_EXPANSION_SLOT_RESET_HANDLER(_devcb) \
devcb = &expansion_slot_device::set_reset_handler(*device, DEVCB_##_devcb);
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
class device_expansion_interface;
class expansion_slot_device : public device_t, public device_slot_interface
{
public:
// construction/destruction
expansion_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
virtual ~expansion_slot_device();
void set_program_space(address_space *program);
void set_io_space(address_space *io);
// callbacks
template<class _Object> static devcb_base &set_int_handler(device_t &device, _Object object)
{ return downcast<expansion_slot_device &>(device).m_int_handler.set_callback(object); }
template<class _Object> static devcb_base &set_nmi_handler(device_t &device, _Object object)
{ return downcast<expansion_slot_device &>(device).m_nmi_handler.set_callback(object); }
template<class _Object> static devcb_base &set_reset_handler(device_t &device, _Object object)
{ return downcast<expansion_slot_device &>(device).m_reset_handler.set_callback(object); }
// called from cart device
DECLARE_WRITE_LINE_MEMBER( int_w ) { m_int_handler(state); }
DECLARE_WRITE_LINE_MEMBER( nmi_w ) { m_nmi_handler(state); }
DECLARE_WRITE_LINE_MEMBER( reset_w ) { m_reset_handler(state); }
address_space *m_program;
address_space *m_io;
protected:
// device-level overrides
virtual void device_start();
virtual void device_reset();
device_expansion_interface *m_cart;
private:
devcb_write_line m_int_handler;
devcb_write_line m_nmi_handler;
devcb_write_line m_reset_handler;
};
// class representing interface-specific live expansion device
class device_expansion_interface : public device_slot_card_interface
{
public:
// construction/destruction
device_expansion_interface(const machine_config &mconfig, device_t &device);
virtual ~device_expansion_interface();
protected:
expansion_slot_device *m_slot;
};
// device type definition
extern const device_type EXPANSION_SLOT;
// include here so drivers don't need to
#include "carts.h"
#endif // __CGENIE_EXPANSION_H__
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