summaryrefslogtreecommitdiffstatshomepage
path: root/src/devices/bus/c64/fcc.h
blob: 5a6960bd8a8c9654d2b2de62deff266e10c6e1c2 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************

    Tasc Final ChessCard cartridge emulation

**********************************************************************/

#pragma once

#ifndef __FCC__
#define __FCC__

#include "emu.h"
#include "exp.h"
#include "cpu/m6502/m65sc02.h"



//**************************************************************************
//  TYPE DEFINITIONS
//**************************************************************************

// ======================> c64_final_chesscard_device

class c64_final_chesscard_device : public device_t,
									public device_c64_expansion_card_interface,
									public device_nvram_interface
{
public:
	// construction/destruction
	c64_final_chesscard_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);

	// optional information overrides
	virtual const tiny_rom_entry *device_rom_region() const override;
	virtual machine_config_constructor device_mconfig_additions() const override;
	virtual ioport_constructor device_input_ports() const override;

	DECLARE_READ8_MEMBER( nvram_r );
	DECLARE_WRITE8_MEMBER( nvram_w );

protected:
	// device-level overrides
	virtual void device_start() override;
	virtual void device_reset() override;

	// device_nvram_interface overrides
	virtual void nvram_default() override { }
	virtual void nvram_read(emu_file &file) override { if (m_nvram != nullptr) { file.read(m_nvram, m_nvram.bytes()); } }
	virtual void nvram_write(emu_file &file) override { if (m_nvram != nullptr) { file.write(m_nvram, m_nvram.bytes()); } }

	// device_c64_expansion_card_interface overrides
	virtual uint8_t c64_cd_r(address_space &space, offs_t offset, uint8_t data, int sphi2, int ba, int roml, int romh, int io1, int io2) override;
	virtual void c64_cd_w(address_space &space, offs_t offset, uint8_t data, int sphi2, int ba, int roml, int romh, int io1, int io2) override;

private:
	required_device<m65sc02_device> m_maincpu;

	uint8_t m_bank;
	int m_ramen;
};


// device type definition
extern const device_type C64_FCC;



#endif