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// license:BSD-3-Clause
// copyright-holders:Hiromitsu Shioya, Olivier Galibert
/*********************************************************/
/* 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)
#define MCFG_SEGAPCM_BANK(_bank) \
segapcm_device::set_bank(*device, _bank);
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
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() { }
// static configuration
static void set_bank(device_t &device, int bank) { downcast<segapcm_device &>(device).m_bank = bank; }
DECLARE_WRITE8_MEMBER( sega_pcm_w );
DECLARE_READ8_MEMBER( sega_pcm_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:
required_region_ptr<UINT8> m_rom;
std::unique_ptr<UINT8[]> m_ram;
UINT8 m_low[16];
int m_bank;
int m_bankshift;
int m_bankmask;
sound_stream* m_stream;
};
extern const device_type SEGAPCM;
#endif /* __SEGAPCM_H__ */
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