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// license:BSD-3-Clause
// copyright-holders:Tatsuyuki Satoh
#ifndef MAME_SOUND_VLM5030_H
#define MAME_SOUND_VLM5030_H
#pragma once
#include "dirom.h"
class vlm5030_device : public device_t, public device_sound_interface, public device_rom_interface<16>
{
public:
vlm5030_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
/* get BSY pin level */
int bsy();
/* latch contoll data */
void data_w(uint8_t data);
/* set RST pin level : reset / set table address A8-A15 */
void rst(int state);
/* set VCU pin level : ?? unknown */
void vcu(int state);
/* set ST pin level : set table address A0-A7 / start speech */
void st(int state);
protected:
// device-level overrides
virtual void device_start() override ATTR_COLD;
virtual void device_reset() override ATTR_COLD;
virtual void device_post_load() override;
// sound stream update overrides
virtual void sound_stream_update(sound_stream &stream, std::vector<read_stream_view> const &inputs, std::vector<write_stream_view> &outputs) override;
// device_rom_interface overrides
virtual void rom_bank_pre_change() override;
private:
// configuration state
const address_space_config m_space_config;
// internal state
sound_stream *m_channel;
/* coefficient tables */
const struct tms5100_coeffs *m_coeff;
/* need to save state */
uint16_t m_address;
uint8_t m_pin_BSY;
uint8_t m_pin_ST;
uint8_t m_pin_VCU;
uint8_t m_pin_RST;
uint8_t m_latch_data;
uint16_t m_vcu_addr_h;
uint8_t m_parameter;
uint8_t m_phase;
/* state of option parameter */
int m_frame_size;
int m_pitch_offset;
uint8_t m_interp_step;
uint8_t m_interp_count; /* number of interp periods */
uint8_t m_sample_count; /* sample number within interp */
uint8_t m_pitch_count;
/* these contain data describing the current and previous voice frames */
uint16_t m_old_energy;
uint8_t m_old_pitch;
int16_t m_old_k[10];
uint16_t m_target_energy;
uint8_t m_target_pitch;
int16_t m_target_k[10];
uint16_t m_new_energy;
uint8_t m_new_pitch;
int16_t 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_t m_x[10];
int get_bits(int sbit,int bits);
int parse_frame();
void update();
void setup_parameter(uint8_t param);
void restore_state();
};
DECLARE_DEVICE_TYPE(VLM5030, vlm5030_device)
#endif // MAME_SOUND_VLM5030_H
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