blob: 846a193cfa25120e589a4d00926eab2f7b2f19c1 (
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
|
// license:BSD-3-Clause
// copyright-holders:Olivier Galibert
#pragma once
#ifndef __SP0250_H__
#define __SP0250_H__
class sp0250_device : public device_t,
public device_sound_interface
{
public:
sp0250_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
~sp0250_device() {}
template<class _Object> static devcb_base &set_drq_callback(device_t &device, _Object object) { return downcast<sp0250_device &>(device).m_drq.set_callback(object); }
DECLARE_WRITE8_MEMBER( write );
UINT8 drq_r();
protected:
// device-level overrides
virtual void device_start();
// sound stream update overrides
virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples);
private:
// internal state
INT16 m_amp;
UINT8 m_pitch;
UINT8 m_repeat;
int m_pcount, m_rcount;
int m_playing;
UINT32 m_RNG;
sound_stream * m_stream;
int m_voiced;
UINT8 m_fifo[15];
int m_fifo_pos;
devcb_write_line m_drq;
struct
{
INT16 F, B;
INT16 z1, z2;
} m_filter[6];
void load_values();
TIMER_CALLBACK_MEMBER( timer_tick );
};
extern const device_type SP0250;
#define MCFG_SP0250_DRQ_CALLBACK(_write) \
devcb = &sp0250_device::set_drq_callback(*device, DEVCB_##_write);
#endif /* __SP0250_H__ */
|