typedef struct {
	UINT8	psgreg;
	UINT8	opmreg;
	UINT8	rapids;
	UINT8	padding;
	UINT8	psgdat[0x10];
	UINT8	opmdat[0x100];
} SNDBOARD;
#ifdef __cplusplus
extern "C" {
#endif
void sndboard_update(void);
void IOOUTCALL opm_o(UINT port, REG8 dat);
REG8 IOINPCALL opm_i(UINT port);
void IOOUTCALL sndboard_psgreg(UINT port, REG8 dat);
void IOOUTCALL sndboard_psgdat(UINT port, REG8 dat);
REG8 IOINPCALL sndboard_psgsta(UINT port);
void sndboard_reset(void);
#ifdef __cplusplus
}
#endif
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