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// license:GPL-2.0+
// copyright-holders:Dirk Best
/***************************************************************************
VTech Laser/VZ Memory Expansion Slot
44-pin slot
22 GND 23 NC
21 +5VDC 24 A11
20 /IORQ 25 A12
19 /RD 26 A13
18 /NMI 27 A14
17 /WAIT 28 A15
16 /MI 29 CLK
15 /RFSH 30 D4
14 D7 31 D3
13 D2 32 D5
12 A1 33 D6
11 A2 34 NC
10 A3 35 A0
9 A4 36 D0
8 A5 37 D1
7 A6 38 /INT
6 A7 39 /HALT
5 A8 40 /MERQ
4 A9 41 /WR
3 A10 42 /NC
2 /RESET 43 +9VDC
1 GND 44 NC
***************************************************************************/
#ifndef MAME_BUS_VTECH_MEMEXP_MEMEXP_H
#define MAME_BUS_VTECH_MEMEXP_MEMEXP_H
#pragma once
// include here so drivers don't need to
#include "carts.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
class device_vtech_memexp_interface;
class vtech_memexp_slot_device : public device_t, public device_slot_interface
{
friend class device_vtech_memexp_interface;
public:
// construction/destruction
vtech_memexp_slot_device(machine_config const &mconfig, char const *tag, device_t *owner)
: vtech_memexp_slot_device(mconfig, tag, owner, (uint32_t)0)
{
option_reset();
vtech_memexp_carts(*this);
set_default_option(nullptr);
set_fixed(false);
}
vtech_memexp_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
virtual ~vtech_memexp_slot_device();
void set_program_space(address_space *program);
void set_io_space(address_space *io);
// 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); }
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
address_space *m_program;
address_space *m_io;
device_vtech_memexp_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 memexp device
class device_vtech_memexp_interface : public device_slot_card_interface
{
public:
// construction/destruction
device_vtech_memexp_interface(const machine_config &mconfig, device_t &device);
virtual ~device_vtech_memexp_interface();
protected:
address_space &program_space() { return *m_slot->m_program; }
address_space &io_space() { return *m_slot->m_io; }
vtech_memexp_slot_device *m_slot;
};
// device type definition
DECLARE_DEVICE_TYPE(VTECH_MEMEXP_SLOT, vtech_memexp_slot_device)
#endif // MAME_BUS_VTECH_MEMEXP_MEMEXP_H
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