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
|
// license:BSD-3-Clause
// copyright-holders:etabeta
#ifndef __ASTROCADE_SLOT_H
#define __ASTROCADE_SLOT_H
/***************************************************************************
TYPE DEFINITIONS
***************************************************************************/
/* PCB */
enum
{
ASTROCADE_STD = 0,
ASTROCADE_256K,
ASTROCADE_512K
};
// ======================> device_astrocade_cart_interface
class device_astrocade_cart_interface : public device_slot_card_interface
{
public:
// construction/destruction
device_astrocade_cart_interface(const machine_config &mconfig, device_t &device);
virtual ~device_astrocade_cart_interface();
// reading and writing
virtual DECLARE_READ8_MEMBER(read_rom) { return 0xff; }
void rom_alloc(UINT32 size, const char *tag);
void ram_alloc(UINT32 size);
UINT8* get_rom_base() { return m_rom; }
UINT32 get_rom_size() { return m_rom_size; }
protected:
// internal state
UINT8 *m_rom;
UINT32 m_rom_size;
};
// ======================> astrocade_cart_slot_device
class astrocade_cart_slot_device : public device_t,
public device_image_interface,
public device_slot_interface
{
public:
// construction/destruction
astrocade_cart_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
virtual ~astrocade_cart_slot_device();
// device-level overrides
virtual void device_start();
virtual void device_config_complete();
// image-level overrides
virtual bool call_load();
virtual void call_unload() {}
virtual bool call_softlist_load(software_list_device &swlist, const char *swname, const rom_entry *start_entry);
int get_type() { return m_type; }
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 option_guide *create_option_guide() const { return NULL; }
virtual const char *image_interface() const { return "astrocde_cart"; }
virtual const char *file_extensions() const { return "bin"; }
// slot interface overrides
virtual void get_default_card_software(astring &result);
// reading and writing
virtual DECLARE_READ8_MEMBER(read_rom);
protected:
int m_type;
device_astrocade_cart_interface* m_cart;
};
// device type definition
extern const device_type ASTROCADE_CART_SLOT;
/***************************************************************************
DEVICE CONFIGURATION MACROS
***************************************************************************/
#define ASTROCADESLOT_ROM_REGION_TAG ":cart:rom"
#define MCFG_ASTROCADE_CARTRIDGE_ADD(_tag,_slot_intf,_def_slot) \
MCFG_DEVICE_ADD(_tag, ASTROCADE_CART_SLOT, 0) \
MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, false)
#endif
|