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/*********************************************************
Konami 053260 PCM/ADPCM Sound Chip
*********************************************************/
#pragma once
#ifndef __K053260_H__
#define __K053260_H__
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
#define MCFG_K053260_ADD(_tag, _clock) \
MCFG_DEVICE_ADD(_tag, K053260, _clock)
#define MCFG_K053260_REPLACE(_tag, _clock) \
MCFG_DEVICE_REPLACE(_tag, K053260, _clock)
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
struct k053260_interface
{
const char *rgnoverride;
timer_expired_func irq; /* called on SH1 complete cycle ( clock / 32 ) */
};
struct k053260_channel
{
k053260_channel() :
rate(0),
size(0),
start(0),
bank(0),
volume(0),
play(0),
pan(0),
pos(0),
loop(0),
ppcm(0),
ppcm_data(0) {}
UINT32 rate;
UINT32 size;
UINT32 start;
UINT32 bank;
UINT32 volume;
int play;
UINT32 pan;
UINT32 pos;
int loop;
int ppcm; /* packed PCM ( 4 bit signed ) */
int ppcm_data;
};
// ======================> k053260_device
class k053260_device : public device_t,
public device_sound_interface
{
public:
k053260_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
~k053260_device() { }
protected:
// device-level overrides
virtual void device_start();
virtual void device_reset();
// sound stream update overrides
virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples);
public:
DECLARE_WRITE8_MEMBER( k053260_w );
DECLARE_READ8_MEMBER( k053260_r );
private:
void InitDeltaTable( int rate, int clock );
void check_bounds( int channel );
private:
sound_stream * m_channel;
int m_mode;
int m_regs[0x30];
UINT8 *m_rom;
int m_rom_size;
UINT32 *m_delta_table;
k053260_channel m_channels[4];
const k053260_interface *m_intf;
};
extern const device_type K053260;
#endif /* __K053260_H__ */
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