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
127
128
129
130
131
132
|
// 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
**********************************************************************/
#pragma once
#ifndef __COLECOVISION_CARTRIDGE_SLOT__
#define __COLECOVISION_CARTRIDGE_SLOT__
#include "emu.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 clock);
virtual ~colecovision_cartridge_slot_device() { }
// computer interface
UINT8 bd_r(address_space &space, offs_t offset, UINT8 data, int _8000, int _a000, int _c000, int _e000);
protected:
// device-level overrides
virtual void device_config_complete() { update_names(); }
virtual void device_start();
// image-level overrides
virtual bool call_load();
virtual bool call_softlist_load(software_list_device &swlist, const char *swname, const rom_entry *start_entry);
virtual iodevice_t image_type() const { return IO_CARTSLOT; }
virtual bool is_readable() const { return 1; }
virtual bool is_writeable() const { return 0; }
virtual bool is_creatable() const { return 0; }
virtual bool must_be_loaded() const { return 0; }
virtual bool is_reset_on_load() const { return 1; }
virtual const char *image_interface() const { return "coleco_cart"; }
virtual const char *file_extensions() const { return "rom,col,bin"; }
virtual const option_guide *create_option_guide() const { return nullptr; }
// slot interface overrides
virtual void get_default_card_software(std::string &result);
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:
// construction/destruction
device_colecovision_cartridge_interface(const machine_config &mconfig, device_t &device);
virtual ~device_colecovision_cartridge_interface() { }
virtual UINT8 bd_r(address_space &space, offs_t offset, UINT8 data, int _8000, int _a000, int _c000, int _e000) { return 0xff; }
void rom_alloc(size_t size);
protected:
UINT8 *m_rom;
size_t m_rom_size;
colecovision_cartridge_slot_device *m_slot;
};
// device type definition
extern const device_type COLECOVISION_CARTRIDGE_SLOT;
SLOT_INTERFACE_EXTERN( colecovision_cartridges );
#endif
|