89 lines
1.7 KiB
C
89 lines
1.7 KiB
C
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/* emu2149.h */
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#ifndef _EMU2149_H_
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#define _EMU2149_H_
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#include <stdint.h>
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#define EMU2149_VOL_DEFAULT 1
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#define EMU2149_VOL_YM2149 0
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#define EMU2149_VOL_AY_3_8910 1
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#define PSG_MASK_CH(x) (1<<(x))
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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typedef struct __PSG
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{
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/* Volume Table */
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uint32_t *voltbl;
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uint8_t reg[0x20];
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int32_t out;
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uint32_t clk, rate, base_incr, quality;
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uint32_t count[3];
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uint32_t volume[3];
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uint32_t freq[3];
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uint32_t edge[3];
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uint32_t tmask[3];
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uint32_t nmask[3];
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uint32_t mask;
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uint32_t base_count;
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uint32_t env_volume;
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uint32_t env_ptr;
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uint32_t env_face;
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uint32_t env_continue;
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uint32_t env_attack;
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uint32_t env_alternate;
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uint32_t env_hold;
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uint32_t env_pause;
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uint32_t env_reset;
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uint32_t env_freq;
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uint32_t env_count;
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uint32_t noise_seed;
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uint32_t noise_count;
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uint32_t noise_freq;
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/* rate converter */
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uint32_t realstep;
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uint32_t psgtime;
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uint32_t psgstep;
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/* I/O Ctrl */
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uint32_t adr;
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/* output of channels */
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int16_t ch_out[3];
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} PSG;
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void PSG_set_quality (PSG * psg, uint32_t q);
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void PSG_set_rate (PSG * psg, uint32_t r);
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PSG *PSG_new (uint32_t clk, uint32_t rate);
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void PSG_reset (PSG *);
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void PSG_delete (PSG *);
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void PSG_writeReg (PSG *, uint32_t reg, uint32_t val);
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void PSG_writeIO (PSG * psg, uint32_t adr, uint32_t val);
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uint8_t PSG_readReg (PSG * psg, uint32_t reg);
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uint8_t PSG_readIO (PSG * psg);
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int16_t PSG_calc (PSG *);
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void PSG_setVolumeMode (PSG * psg, int type);
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uint32_t PSG_setMask (PSG *, uint32_t mask);
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uint32_t PSG_toggleMask (PSG *, uint32_t mask);
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#ifdef __cplusplus
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}
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#endif
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#endif
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