Tone Generator, Sweep Flags
[Memory map bit(fields)]

Bits for REG_SND1SWEEP (aka REG_SOUND1CNT_L). More...

Defines
#define	SSW_INC   0
	Increasing sweep rate.
#define	SSW_DEC   0x0008
	Decreasing sweep rate.
#define	SSW_OFF   0x0008
	Disable sweep altogether.
#define	SSW_SHIFT_MASK   0x0007
#define	SSW_SHIFT_SHIFT   0
#define	SSW_SHIFT(n)   ((n)<<SSW_SHIFT_SHIFT)
#define	SSW_TIME_MASK   0x0070
#define	SSW_TIME_SHIFT   4
#define	SSW_TIME(n)   ((n)<<SSW_TIME_SHIFT)
#define	SSW_BUILD(shift, dir, time)   ( (((time)&7)<<4) | ((dir)<<3) | ((shift)&7) )

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Detailed Description

Bits for REG_SND1SWEEP (aka REG_SOUND1CNT_L).

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