Blend Flags

Macros for REG_BLDCNT, REG_BLDY and REG_BLDALPHA. More...

Modules
	Tone Generator, Sweep Flags
	Bits for REG_SND1SWEEP (aka REG_SOUND1CNT_L)
	Tone Generator, Square Flags
	Bits for REG_SND{1,2,4}CNT (aka REG_SOUND1CNT_H, REG_SOUND2CNT_L, REG_SOUND4CNT_L, respectively)
	Tone Generator, Frequency Flags
	Bits for REG_SND{1-3}FREQ (aka REG_SOUND1CNT_X, REG_SOUND2CNT_H, REG_SOUND3CNT_X)
	Tone Generator, Control Flags
	Bits for REG_SNDDMGCNT (aka REG_SOUNDCNT_L)
	Direct Sound Flags
	Bits for REG_SNDDSCNT (aka REG_SOUNDCNT_H)
	Sound Status Flags
	Bits for REG_SNDSTAT (and REG_SOUNDCNT_X)
	DMA Control Flags
	Bits for REG_DMAxCNT.
	Timer Control Flags
	Bits for REG_TMxCNT.
	Serial I/O Control
	Bits for REG_TMxCNT.

Mosaic macros
#define	BLD_BG0   0x0001
	\ name Blend control
#define	BLD_BG1   0x0002
	Blend bg 1.
#define	BLD_BG2   0x0004
	Blend bg 2.
#define	BLD_BG3   0x0008
	Blend bg 3.
#define	BLD_OBJ   0x0010
	Blend objects.
#define	BLD_ALL   0x001F
	All layers (except backdrop)
#define	BLD_BACKDROP   0x0020
	Blend backdrop.
#define	BLD_OFF   0
	Blend mode is off.
#define	BLD_STD   0x0040
	Normal alpha blend (with REG_EV)
#define	BLD_WHITE   0x0080
	Fade to white (with REG_Y)
#define	BLD_BLACK   0x00C0
	Fade to black (with REG_Y)
#define	BLD_TOP_MASK   0x003F
	\ name Blend control
#define	BLD_TOP_SHIFT   0
	\ name Blend control
#define	BLD_TOP(n)   ((n)<<BLD_TOP_SHIFT)
	\ name Blend control
#define	BLD_MODE_MASK   0x00C0
	\ name Blend control
#define	BLD_MODE_SHIFT   6
	\ name Blend control
#define	BLD_MODE(n)   ((n)<<BLD_MODE_SHIFT)
	\ name Blend control
#define	BLD_BOT_MASK   0x3F00
	\ name Blend control
#define	BLD_BOT_SHIFT   8
	\ name Blend control
#define	BLD_BOT(n)   ((n)<<BLD_BOT_SHIFT)
	\ name Blend control
#define	BLD_BUILD(top, bot, mode)    ( (((bot)&63)<<8) | (((mode)&3)<<6) | ((top)&63) )
	\ name Blend control

Blend weights
#define	BLD_EVA_MASK   0x001F
#define	BLD_EVA_SHIFT   0
#define	BLD_EVA(n)   ((n)<<BLD_EVA_SHIFT)
#define	BLD_EVB_MASK   0x1F00
#define	BLD_EVB_SHIFT   8
#define	BLD_EVB(n)   ((n)<<BLD_EVB_SHIFT)
#define	BLDA_BUILD(eva, evb)    ( ((eva)&31) | (((evb)&31)<<8) )

Fade levels
#define	BLDY_MASK   0x001F
#define	BLDY_SHIFT   0
#define	BLDY(n)   ((n)<<BLD_EY_SHIFT)
#define	BLDY_BUILD(ey)    ( (ey)&31 )

Detailed Description

Macros for REG_BLDCNT, REG_BLDY and REG_BLDALPHA.

Macro Definition Documentation

BLD_BG0

#define BLD_BG0   0x0001

\ name Blend control

Blend bg 0

BLD_BOT

#define BLD_BOT

(

n

)

((n)<<BLD_BOT_SHIFT)

\ name Blend control

Blend bg 0

BLD_BOT_MASK

#define BLD_BOT_MASK   0x3F00

\ name Blend control

Blend bg 0

BLD_BOT_SHIFT

#define BLD_BOT_SHIFT   8

\ name Blend control

Blend bg 0

BLD_BUILD

#define BLD_BUILD	(		top,
			bot,
			mode
	)		( (((bot)&63)<<8) | (((mode)&3)<<6) | ((top)&63) )

\ name Blend control

Blend bg 0

BLD_MODE

#define BLD_MODE

(

n

)

((n)<<BLD_MODE_SHIFT)

\ name Blend control

Blend bg 0

BLD_MODE_MASK

#define BLD_MODE_MASK   0x00C0

\ name Blend control

Blend bg 0

BLD_MODE_SHIFT

#define BLD_MODE_SHIFT   6

\ name Blend control

Blend bg 0

BLD_TOP

#define BLD_TOP

(

n

)

((n)<<BLD_TOP_SHIFT)

\ name Blend control

Blend bg 0

BLD_TOP_MASK

#define BLD_TOP_MASK   0x003F

\ name Blend control

Blend bg 0

BLD_TOP_SHIFT

#define BLD_TOP_SHIFT   0

\ name Blend control

Blend bg 0