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// license:???
// copyright-holders:???
#pragma once
#ifndef __VLM5030_H__
#define __VLM5030_H__
class vlm5030_device : public device_t,
public device_sound_interface
{
public:
vlm5030_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
~vlm5030_device() {}
/* set speech rom address */
void set_rom(void *speech_rom);
/* get BSY pin level */
DECLARE_READ_LINE_MEMBER( bsy );
/* latch contoll data */
DECLARE_WRITE8_MEMBER( data_w );
/* set RST pin level : reset / set table address A8-A15 */
DECLARE_WRITE_LINE_MEMBER( rst );
/* set VCU pin level : ?? unknown */
DECLARE_WRITE_LINE_MEMBER( vcu );
/* set ST pin level : set table address A0-A7 / start speech */
DECLARE_WRITE_LINE_MEMBER( st );
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);
private:
// internal state
sound_stream * m_channel;
/* coefficient tables */
const struct tms5100_coeffs *m_coeff;
/* need to save state */
UINT8 *m_rom;
int m_address_mask;
UINT16 m_address;
UINT8 m_pin_BSY;
UINT8 m_pin_ST;
UINT8 m_pin_VCU;
UINT8 m_pin_RST;
UINT8 m_latch_data;
UINT16 m_vcu_addr_h;
UINT8 m_parameter;
UINT8 m_phase;
/* state of option paramter */
int m_frame_size;
int m_pitch_offset;
UINT8 m_interp_step;
UINT8 m_interp_count; /* number of interp periods */
UINT8 m_sample_count; /* sample number within interp */
UINT8 m_pitch_count;
/* these contain data describing the current and previous voice frames */
UINT16 m_old_energy;
UINT8 m_old_pitch;
INT16 m_old_k[10];
UINT16 m_target_energy;
UINT8 m_target_pitch;
INT16 m_target_k[10];
UINT16 m_new_energy;
UINT8 m_new_pitch;
INT16 m_new_k[10];
/* these are all used to contain the current state of the sound generation */
unsigned int m_current_energy;
unsigned int m_current_pitch;
int m_current_k[10];
INT32 m_x[10];
int get_bits(int sbit,int bits);
int parse_frame();
void update();
void setup_parameter(UINT8 param);
void restore_state();
};
extern const device_type VLM5030;
#endif /* __VLM5030_H__ */
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