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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
***************************************************************************/
#ifndef MAME_BUS_CGENIE_EXPANSION_EXPANSION_H
#define MAME_BUS_CGENIE_EXPANSION_EXPANSION_H
#pragma once
// include here so drivers don't need to
#include "carts.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
class device_cg_exp_interface;
class cg_exp_slot_device : public device_t, public device_slot_interface
{
public:
// construction/destruction
cg_exp_slot_device(machine_config const &mconfig, char const *tag, device_t *owner)
: cg_exp_slot_device(mconfig, tag, owner, (uint32_t)0)
{
option_reset();
cg_exp_slot_carts(*this);
set_default_option(nullptr);
set_fixed(false);
}
cg_exp_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
virtual ~cg_exp_slot_device();
template <typename T> void set_program_space(T &&tag, int spacenum) { m_program.set_tag(std::forward<T>(tag), spacenum); }
template <typename T> void set_io_space(T &&tag, int spacenum) { m_io.set_tag(std::forward<T>(tag), spacenum); }
// callbacks
auto int_handler() { return m_int_handler.bind(); }
auto nmi_handler() { return m_nmi_handler.bind(); }
auto reset_handler() { return m_reset_handler.bind(); }
// 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); }
required_address_space m_program;
required_address_space m_io;
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
device_cg_exp_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_cg_exp_interface : public device_slot_card_interface
{
public:
// construction/destruction
virtual ~device_cg_exp_interface();
protected:
device_cg_exp_interface(const machine_config &mconfig, device_t &device);
cg_exp_slot_device *m_slot;
};
// device type definition
DECLARE_DEVICE_TYPE(CG_EXP_SLOT, cg_exp_slot_device)
#endif // MAME_BUS_CGENIE_EXPANSION_EXPANSION_H
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