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
|
/*********************************************************************
snapquik.h
Snapshots and quickloads
*********************************************************************/
#include "emu.h"
#include "snapquik.h"
// device type definition
const device_type SNAPSHOT = &device_creator<snapshot_image_device>;
//-------------------------------------------------
// snapshot_image_device - constructor
//-------------------------------------------------
snapshot_image_device::snapshot_image_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
: device_t(mconfig, SNAPSHOT, "Snapshot", tag, owner, clock),
device_image_interface(mconfig, *this),
m_delay_attoseconds(0)
{
}
snapshot_image_device::snapshot_image_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock) :
device_t(mconfig, type, name, tag, owner, clock),
device_image_interface(mconfig, *this),
m_delay_attoseconds(0)
{
}
//-------------------------------------------------
// snapshot_image_device - destructor
//-------------------------------------------------
snapshot_image_device::~snapshot_image_device()
{
}
//-------------------------------------------------
// device_config_complete - perform any
// operations now that the configuration is
// complete
//-------------------------------------------------
void snapshot_image_device::device_config_complete()
{
// set brief and instance name
update_names();
}
/*-------------------------------------------------
TIMER_CALLBACK(process_snapshot_or_quickload)
-------------------------------------------------*/
static TIMER_CALLBACK(process_snapshot_or_quickload)
{
reinterpret_cast<snapshot_image_device *>(ptr)->timer_callback();
}
void snapshot_image_device::timer_callback()
{
/* invoke the load */
(*m_load)(*this, filetype(), length());
/* unload the device */
unload();
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void snapshot_image_device::device_start()
{
/* allocate a timer */
m_timer = machine().scheduler().timer_alloc(FUNC(process_snapshot_or_quickload), (void *)this);
}
/*-------------------------------------------------
call_load
-------------------------------------------------*/
bool snapshot_image_device::call_load()
{
/* adjust the timer */
m_timer->adjust(attotime(m_delay_seconds, m_delay_attoseconds),0);
return IMAGE_INIT_PASS;
}
// device type definition
const device_type QUICKLOAD = &device_creator<quickload_image_device>;
//-------------------------------------------------
// quickload_image_device - constructor
//-------------------------------------------------
quickload_image_device::quickload_image_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
: snapshot_image_device(mconfig, QUICKLOAD, "Quickload", tag, owner, clock)
{
}
|