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:Nathan Woods, Miodrag Milanovic
/*********************************************************************
bitbngr.c
*********************************************************************/
#include "emu.h"
#include "bitbngr.h"
/***************************************************************************
IMPLEMENTATION
***************************************************************************/
const device_type BITBANGER = &device_creator<bitbanger_device>;
/*-------------------------------------------------
ctor
-------------------------------------------------*/
bitbanger_device::bitbanger_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
device_t(mconfig, BITBANGER, "Bitbanger", tag, owner, clock, "bitbanger", __FILE__),
device_image_interface(mconfig, *this)
{
}
/*-------------------------------------------------
native_output - outputs data to a file
-------------------------------------------------*/
void bitbanger_device::output(UINT8 data)
{
if (exists())
{
fwrite(&data, 1);
}
}
/*-------------------------------------------------
native_input - inputs data from a file
-------------------------------------------------*/
UINT32 bitbanger_device::input(void *buffer, UINT32 length)
{
if (exists())
{
return fread(buffer, length);
}
return 0;
}
/*-------------------------------------------------
device_start
-------------------------------------------------*/
void bitbanger_device::device_start(void)
{
}
/*-------------------------------------------------
device_config_complete
-------------------------------------------------*/
void bitbanger_device::device_config_complete(void)
{
update_names(BITBANGER, "bitbngr", "bitb");
}
/*-------------------------------------------------
call_load
-------------------------------------------------*/
bool bitbanger_device::call_load(void)
{
/* we don't need to do anything special */
return IMAGE_INIT_PASS;
}
bool bitbanger_device::call_create(int format_type, option_resolution *format_options)
{
/* we don't need to do anything special */
return IMAGE_INIT_PASS;
}
/*-------------------------------------------------
call_unload
-------------------------------------------------*/
void bitbanger_device::call_unload(void)
{
}
|