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// license:BSD-3-Clause
// copyright-holders:R. Belmont, superctr
#pragma once
#ifndef __C352_H__
#define __C352_H__
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
#define MCFG_C352_ADD(_tag, _clock, _setting) \
MCFG_DEVICE_ADD(_tag, C352, _clock) \
MCFG_C352_DIVIDER(_setting)
#define MCFG_C352_DIVIDER(_setting) \
c352_device::static_set_divider(*device, _setting);
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> asc_device
class c352_device : public device_t,
public device_sound_interface,
public device_rom_interface
{
public:
// construction/destruction
c352_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
// inline configuration helpers
static void static_set_divider(device_t &device, int setting);
DECLARE_READ16_MEMBER(read);
DECLARE_WRITE16_MEMBER(write);
sound_stream *m_stream;
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
virtual void device_clock_changed() override;
// device_sound_interface overrides
virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples) override;
// device_rom_interface overrides
virtual void rom_bank_updated() override;
private:
enum {
C352_FLG_BUSY = 0x8000, // channel is busy
C352_FLG_KEYON = 0x4000, // Keyon
C352_FLG_KEYOFF = 0x2000, // Keyoff
C352_FLG_LOOPTRG = 0x1000, // Loop Trigger
C352_FLG_LOOPHIST = 0x0800, // Loop History
C352_FLG_FM = 0x0400, // Frequency Modulation
C352_FLG_PHASERL = 0x0200, // Rear Left invert phase 180 degrees
C352_FLG_PHASEFL = 0x0100, // Front Left invert phase 180 degrees
C352_FLG_PHASEFR = 0x0080, // invert phase 180 degrees (e.g. flip sign of sample)
C352_FLG_LDIR = 0x0040, // loop direction
C352_FLG_LINK = 0x0020, // "long-format" sample (can't loop, not sure what else it means)
C352_FLG_NOISE = 0x0010, // play noise instead of sample
C352_FLG_MULAW = 0x0008, // sample is mulaw instead of linear 8-bit PCM
C352_FLG_FILTER = 0x0004, // don't apply filter
C352_FLG_REVLOOP = 0x0003, // loop backwards
C352_FLG_LOOP = 0x0002, // loop forward
C352_FLG_REVERSE = 0x0001 // play sample backwards
};
struct c352_voice_t {
UINT32 pos;
UINT32 counter;
INT16 sample;
INT16 last_sample;
UINT16 vol_f;
UINT16 vol_r;
UINT16 freq;
UINT16 flags;
UINT16 wave_bank;
UINT16 wave_start;
UINT16 wave_end;
UINT16 wave_loop;
};
int m_sample_rate_base;
int m_divider;
c352_voice_t m_c352_v[32];
INT16 m_mulaw_table[256];
UINT16 m_random;
UINT16 m_control; // control flags, purpose unknown.
void fetch_sample(c352_voice_t* v);
unsigned short read_reg16(unsigned long address);
void write_reg16(unsigned long address, unsigned short val);
};
// device type definition
extern const device_type C352;
#endif /* __C352_H__ */
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