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// license:BSD-3-Clause
// copyright-holders:Sandro Ronco
/*********************************************************************
z88.h
Z88 cartridge slots emulation
**********************************************************************
pins Slot 1 Slot 2 Slot 3
1 A16 A16 A16
2 A15 A15 A15
3 A12 A12 A12
4 A7 A7 A7
5 A6 A6 A6
6 A5 A5 A5
7 A4 A4 A4
8 A3 A3 A3
9 A2 A2 A2
10 A1 A1 A1
11 A0 A0 A0
12 D0 D0 D0
13 D1 D1 D1
14 D2 D2 D2
15 SNSL SNSL SNSL
16 GND GND GND
17 GND GND GND
18 A14 A14 A14
19 VCC VCC VPP
20 VCC VCC VCC
21 VCC VCC VCC
22 WEL WEL PGML
23 A13 A13 A13
24 A8 A8 A8
25 A9 A9 A9
26 A11 A11 A11
27 POE POE POE
28 ROE ROE EOE
29 A10 A10 A10
30 SE1 SE2 SE3
31 D7 D7 D7
32 D6 D6 D6
33 D3 D3 D3
34 D4 D4 D4
35 D5 D5 D5
36 A17 A17 A17
37 A18 A18 A18
38 A19 A19 A19
*********************************************************************/
#ifndef MAME_BUS_Z88_Z88_H
#define MAME_BUS_Z88_Z88_H
#pragma once
#include "imagedev/cartrom.h"
/***************************************************************************
TYPE DEFINITIONS
***************************************************************************/
// ======================> device_z88cart_interface
class device_z88cart_interface : public device_interface
{
public:
// construction/destruction
virtual ~device_z88cart_interface();
// reading and writing
virtual uint8_t read(offs_t offset) { return 0xff; }
virtual void write(offs_t offset, uint8_t data) { }
virtual uint8_t* get_cart_base() { return nullptr; }
virtual uint32_t get_cart_size() { return 0; }
protected:
device_z88cart_interface(const machine_config &mconfig, device_t &device);
};
// ======================> z88cart_slot_device
class z88cart_slot_device : public device_t,
public device_cartrom_image_interface,
public device_single_card_slot_interface<device_z88cart_interface>
{
public:
// construction/destruction
template <typename T>
z88cart_slot_device(machine_config const &mconfig, char const *tag, device_t *owner, T &&opts, char const *dflt)
: z88cart_slot_device(mconfig, tag, owner, 0)
{
option_reset();
opts(*this);
set_default_option(dflt);
set_fixed(false);
}
z88cart_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0);
auto out_flp_callback() { return m_out_flp_cb.bind(); }
// image-level overrides
virtual image_init_result call_load() override;
virtual void call_unload() override;
virtual bool is_reset_on_load() const noexcept override { return false; }
virtual const char *image_interface() const noexcept override { return "z88_cart"; }
virtual const char *file_extensions() const noexcept override { return "epr,bin"; }
// slot interface overrides
virtual std::string get_default_card_software(get_default_card_software_hook &hook) const override;
// reading and writing
uint8_t read(offs_t offset);
void write(offs_t offset, uint8_t data);
uint8_t* get_cart_base();
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
private:
static constexpr device_timer_id TIMER_FLP_CLEAR = 0;
devcb_write_line m_out_flp_cb;
device_z88cart_interface* m_cart;
emu_timer * m_flp_timer;
};
// device type definition
DECLARE_DEVICE_TYPE(Z88CART_SLOT, z88cart_slot_device)
#endif // MAME_BUS_Z88_Z88_H
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