summaryrefslogtreecommitdiffstatshomepage
path: root/src/devices/bus/coleco/exp.h
blob: e722dfc12349f41a6e1a3ef74424bce63b325e99 (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
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************

    ColecoVision cartridge port emulation

**********************************************************************

                     D2       1      2       /C000
                     D1       3      4       D3
                     D0       5      6       D4
                     A0       7      8       D5
                     A1       9      10      D6
                     A2      11      12      D7
                   SHLD      13      14      A11
                     A3      15      16      A10
                     A4      17      18      /8000
                    A13      19      20      A14
                     A5      21      22      /A000
                     A6      23      24      A12
                     A7      25      26      A9
                  /E000      27      28      A8
                    GND      29      30      +5V


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

#ifndef MAME_BUS_COLECO_EXP_H
#define MAME_BUS_COLECO_EXP_H

#pragma once

#include "softlist_dev.h"


//**************************************************************************
//  CONSTANTS
//**************************************************************************

#define COLECOVISION_CARTRIDGE_SLOT_TAG      "cartslot"



//**************************************************************************
//  INTERFACE CONFIGURATION MACROS
//**************************************************************************

#define MCFG_COLECOVISION_CARTRIDGE_SLOT_ADD(_tag, _slot_intf, _def_slot) \
	MCFG_DEVICE_ADD(_tag, COLECOVISION_CARTRIDGE_SLOT, 0) \
	MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, false)



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

// ======================> colecovision_cartridge_slot_device

class device_colecovision_cartridge_interface;

class colecovision_cartridge_slot_device : public device_t,
											public device_slot_interface,
											public device_image_interface
{
public:
	// construction/destruction
	colecovision_cartridge_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);

	// computer interface
	uint8_t bd_r(address_space &space, offs_t offset, uint8_t data, int _8000, int _a000, int _c000, int _e000);

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

	// image-level overrides
	virtual image_init_result call_load() override;
	virtual const software_list_loader &get_software_list_loader() const override { return rom_software_list_loader::instance(); }

	virtual iodevice_t image_type() const override { return IO_CARTSLOT; }

	virtual bool is_readable()  const override { return 1; }
	virtual bool is_writeable() const override { return 0; }
	virtual bool is_creatable() const override { return 0; }
	virtual bool must_be_loaded() const override { return 0; }
	virtual bool is_reset_on_load() const override { return 1; }
	virtual const char *image_interface() const override { return "coleco_cart"; }
	virtual const char *file_extensions() const override { return "rom,col,bin"; }

	// slot interface overrides
	virtual std::string get_default_card_software(get_default_card_software_hook &hook) const override;

	device_colecovision_cartridge_interface *m_card;
};


// ======================> device_colecovision_cartridge_interface

class device_colecovision_cartridge_interface : public device_slot_card_interface
{
	friend class colecovision_cartridge_slot_device;

public:
	virtual uint8_t bd_r(address_space &space, offs_t offset, uint8_t data, int _8000, int _a000, int _c000, int _e000) { return 0xff; }

	void rom_alloc(size_t size);

protected:
	// construction/destruction
	device_colecovision_cartridge_interface(const machine_config &mconfig, device_t &device);

	uint8_t *m_rom;
	size_t m_rom_size;

	colecovision_cartridge_slot_device *m_slot;
};


// device type definition
DECLARE_DEVICE_TYPE(COLECOVISION_CARTRIDGE_SLOT, colecovision_cartridge_slot_device)

void colecovision_cartridges(device_slot_interface &device);


#endif // MAME_BUS_COLECO_EXP_H