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/*********************************************************/
/* SEGA 8bit PCM */
/*********************************************************/
#pragma once
#ifndef __SEGAPCM_H__
#define __SEGAPCM_H__
#define BANK_256 (11)
#define BANK_512 (12)
#define BANK_12M (13)
#define BANK_MASK7 (0x70<<16)
#define BANK_MASKF (0xf0<<16)
#define BANK_MASKF8 (0xf8<<16)
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
#define MCFG_SEGAPCM_ADD(_tag, _clock) \
MCFG_DEVICE_ADD(_tag, SEGAPCM, _clock)
#define MCFG_SEGAPCM_REPLACE(_tag, _clock) \
MCFG_DEVICE_REPLACE(_tag, SEGAPCM, _clock)
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
struct sega_pcm_interface
{
int bank;
};
class segapcm_device : public device_t,
public device_sound_interface
{
public:
segapcm_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
~segapcm_device() { }
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);
public:
DECLARE_WRITE8_MEMBER( sega_pcm_w );
DECLARE_READ8_MEMBER( sega_pcm_r );
private:
UINT8* m_ram;
UINT8 m_low[16];
const UINT8* m_rom;
int m_bankshift;
int m_bankmask;
int m_rgnmask;
sound_stream* m_stream;
};
extern const device_type SEGAPCM;
#endif /* __SEGAPCM_H__ */
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