furnace/extern/Nuked-PSG/ympsg.h

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// Copyright (C) 2021 Nuke.YKT
// License: GPLv2+
// Version 1.0.1
#ifndef _YMPSG_H_
#define _YMPSG_H_
#include <stdint.h>
#define YMPSG_WRITEBUF_SIZE 2048
#define YMPSG_WRITEBUF_DELAY 8
typedef struct _ympsg_writebuf {
uint64_t time;
uint8_t stat;
uint8_t data;
} ympsg_writebuf;
typedef struct {
// IO
uint8_t data;
uint8_t latch;
uint8_t write_flag;
uint8_t write_flag_l;
uint8_t prescaler_1;
uint8_t prescaler_2;
uint8_t prescaler_2_l;
uint8_t reset_latch;
uint8_t ic;
uint8_t ic_latch1;
uint8_t ic_latch2;
uint8_t data_mask;
uint8_t reg_reset;
uint8_t volume[4];
uint16_t freq[3];
uint8_t noise_data;
uint8_t noise_of;
uint8_t noise_trig;
uint8_t noise_trig_l;
uint8_t rot;
uint8_t chan_sel;
uint16_t counter[4];
uint8_t counter_of;
uint8_t sign;
uint8_t sign_l;
uint8_t noise_sign_l;
uint16_t noise;
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uint8_t noise_tap2;
uint16_t noise_size;
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uint8_t test;
uint8_t volume_out[4];
//
uint64_t writebuf_samplecnt;
uint32_t writebuf_cur;
uint32_t writebuf_last;
uint64_t writebuf_lasttime;
ympsg_writebuf writebuf[YMPSG_WRITEBUF_SIZE];
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//
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short vol_table[17];
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uint8_t mute;
} ympsg_t;
void YMPSG_Write(ympsg_t *chip, uint8_t data);
uint16_t YMPSG_Read(ympsg_t *chip);
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void YMPSG_Init(ympsg_t *chip, uint8_t real_sn);
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void YMPSG_SetIC(ympsg_t *chip, uint32_t ic);
void YMPSG_Clock(ympsg_t *chip);
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int YMPSG_GetOutput(ympsg_t *chip);
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void YMPSG_Test(ympsg_t *chip, uint16_t test);
void YMPSG_Generate(ympsg_t *chip, int32_t *buf);
void YMPSG_WriteBuffered(ympsg_t *chip, uint8_t data);
void YMPSG_SetMute(ympsg_t *chip, uint8_t mute);
#endif