2022-02-18 19:42:21 -05:00
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#ifndef SOUND_SN76489_H
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2022-02-22 20:28:56 -05:00
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#define SOUND_SN76489_H
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2022-02-18 19:42:21 -05:00
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2022-02-22 20:28:56 -05:00
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enum {
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SN76496,
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NCR8496,
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PSSJ
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2016-06-26 00:34:39 +02:00
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};
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2018-03-19 01:02:04 +01:00
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extern const device_t sn76489_device;
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extern const device_t ncr8496_device;
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2016-06-26 00:34:39 +02:00
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extern int sn76489_mute;
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2022-02-22 20:28:56 -05:00
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typedef struct sn76489_t {
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int stat[4];
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2023-06-26 12:47:04 -04:00
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int latch[4];
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int count[4];
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int freqlo[4];
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int freqhi[4];
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2022-02-22 20:28:56 -05:00
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int vol[4];
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uint32_t shift;
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2024-08-08 18:56:05 +02:00
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uint32_t white_noise_tap_1;
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uint32_t white_noise_tap_2;
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uint32_t feedback_mask;
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2022-02-22 20:28:56 -05:00
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uint8_t noise;
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int lasttone;
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uint8_t firstdat;
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int type;
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int extra_divide;
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int16_t buffer[SOUNDBUFLEN];
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int pos;
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double psgconst;
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2016-06-26 00:34:39 +02:00
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} sn76489_t;
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void sn76489_init(sn76489_t *sn76489, uint16_t base, uint16_t size, int type, int freq);
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void sn74689_set_extra_divide(sn76489_t *sn76489, int enable);
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2022-02-18 19:42:21 -05:00
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#endif /*SOUND_SN76489_H*/
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