blob: 9685fa4fea23cf89e953d6fb0e69a5182df0a2ea (
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
|
// license:BSD-3-Clause
// copyright-holders:Olivier Galibert
#ifndef MAME_SOUND_SP0250_H
#define MAME_SOUND_SP0250_H
#pragma once
class sp0250_device : public device_t, public device_sound_interface
{
public:
sp0250_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
auto drq() { return m_drq.bind(); }
void write(uint8_t data);
uint8_t drq_r();
protected:
// device-level overrides
virtual void device_start() override;
// sound stream update overrides
virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples) override;
private:
// internal state
int16_t m_amp;
uint8_t m_pitch;
uint8_t m_repeat;
int m_pcount, m_rcount;
int m_playing;
uint32_t m_RNG;
sound_stream * m_stream;
int m_voiced;
uint8_t m_fifo[15];
int m_fifo_pos;
devcb_write_line m_drq;
struct
{
int16_t F, B;
int16_t z1, z2;
} m_filter[6];
void load_values();
TIMER_CALLBACK_MEMBER( timer_tick );
emu_timer * m_tick_timer;
};
DECLARE_DEVICE_TYPE(SP0250, sp0250_device)
#endif // MAME_SOUND_SP0250_H
|