blob: 232eb030794fea71c07da7cc9b0b2c5ee93fa732 (
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
|
/****************************************************************************
psion_pack.h
****************************************************************************/
#ifndef __PSION_PACK_H__
#define __PSION_PACK_H__
/***************************************************************************
TYPE DEFINITIONS
***************************************************************************/
// ======================> datapack_device
class datapack_device : public device_t,
public device_image_interface
{
public:
// construction/destruction
datapack_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
virtual ~datapack_device();
// image-level overrides
virtual bool call_load();
virtual void call_unload();
virtual bool call_create(int format_type, option_resolution *create_args);
virtual bool call_softlist_load(char *swlist, char *swname, rom_entry *start_entry) { return load_software(swlist, swname, start_entry); }
virtual iodevice_t image_type() const { return IO_CARTSLOT; }
virtual bool is_readable() const { return 1; }
virtual bool is_writeable() const { return 1; }
virtual bool is_creatable() const { return 1; }
virtual bool must_be_loaded() const { return 0; }
virtual bool is_reset_on_load() const { return 0; }
virtual const char *image_interface() const { return "psion_pack"; }
virtual const char *file_extensions() const { return "opk"; }
virtual const option_guide *create_option_guide() const;
// specific implementation
UINT8 data_r();
void data_w(UINT8 data);
UINT8 control_r();
void control_w(UINT8 data);
protected:
// internal helper
void update();
// device-level overrides
virtual void device_start();
virtual void device_config_complete();
private:
// internal device state
UINT8 m_id; //datapack ID
UINT8 m_size; //size in 8k blocks
UINT8 m_data; //data lines
UINT8 m_control; //control lines
UINT16 m_counter; //address counter
UINT8 m_page; //active page (only for paged Datapack)
UINT8 m_segment; //active segment (only for segmented Datapack)
};
// device type definition
extern const device_type PSION_DATAPACK;
/***************************************************************************
DEVICE CONFIGURATION MACROS
***************************************************************************/
#define MCFG_PSION_DATAPACK_ADD(_tag) \
MCFG_DEVICE_ADD(_tag, PSION_DATAPACK, 0) \
#endif /* __PSION_PACK_H__ */
|