blob: e68eabcb4b861ed4e0f458e600e7b5a6c9d4098a (
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
|
/***************************************************************************
coco_vhd.h
Color Computer Virtual Hard Drives
***************************************************************************/
#ifndef COCOVHD_H
#define COCOVHD_H
#include "image.h"
/***************************************************************************
TYPE DEFINITIONS
***************************************************************************/
// ======================> coco_vhd_image_device
class coco_vhd_image_device : public device_t,
public device_image_interface
{
public:
// construction/destruction
coco_vhd_image_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
virtual ~coco_vhd_image_device();
// image-level overrides
virtual bool call_load();
virtual iodevice_t image_type() const { return IO_HARDDISK; }
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 NULL; }
virtual const char *file_extensions() const { return "vhd"; }
virtual const option_guide *create_option_guide() const { return NULL; }
// specific implementation
DECLARE_READ8_MEMBER(read) { return read(offset); }
DECLARE_WRITE8_MEMBER(write) { write(offset, data); }
UINT8 read(offs_t offset);
void write(offs_t offset, UINT8 data);
protected:
// device-level overrides
virtual void device_config_complete();
virtual void device_start();
void coco_vhd_readwrite(UINT8 data);
private:
cpu_device * m_cpu;
address_space * m_cpu_space;
UINT32 m_logical_record_number;
UINT32 m_buffer_address;
UINT8 m_status;
};
// device type definition
extern const device_type COCO_VHD;
/***************************************************************************
DEVICE CONFIGURATION MACROS
***************************************************************************/
#define MCFG_COCO_VHD_ADD(_tag) \
MCFG_DEVICE_ADD(_tag, COCO_VHD, 0)
#endif /* COCOVHD_H */
|