bios.h

Nintendo DS Bios functions. [詳細]

#include "nds/ndstypes.h"

ソースコードを見る。

構成
struct	DecompressionStream
struct	UnpackStruct
マクロ定義
#define	COPY_MODE_HWORD   (0)
#define	COPY_MODE_WORD   (1<<26)
#define	COPY_MODE_COPY   (0)
#define	COPY_MODE_FILL   (1<<24)
型定義
typedef struct DecompressionStream	TDecompressionStream
typedef struct UnpackStruct	TUnpackStruct
typedef struct UnpackStruct *	PUnpackStruct
関数
void	swiSoftReset (void)
	reset the DS.
void	swiDelay (uint32 duration)
	delay
int	swiDivide (int numerator, int divisor)
int	swiRemainder (int numerator, int divisor)
void	swiDivMod (int numerator, int divisor, int *result, int *remainder)
void	swiCopy (const void *source, void *dest, int flags)
void	swiFastCopy (const void *source, void *dest, int flags)
int	swiSqrt (int value)
uint16	swiCRC16 (uint16 crc, void *data, uint32 size)
int	swiIsDebugger (void)
void	swiUnpackBits (uint8 *source, uint32 *destination, PUnpackStruct params)
void	swiDecompressLZSSWram (void *source, void *destination)
int	swiDecompressLZSSVram (void *source, void *destination, uint32 toGetSize, TDecompressionStream *stream)
int	swiDecompressHuffman (void *source, void *destination, uint32 toGetSize, TDecompressionStream *stream)
void	swiDecompressRLEWram (void *source, void *destination)
int	swiDecompressRLEVram (void *source, void *destination, uint32 toGetSize, TDecompressionStream *stream)

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説明

Nintendo DS Bios functions.

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関数

swiCopy	(	const void *	source,
		void *	dest,
		int	flags
	)

引数:

	source	pointer to transfer source
	dest	dest = pointer to transfer destination
	flags	copy mode and size flags(26) = transfer width (0: halfwords, 1: words) flags(24) = transfer mode (0: copy, 1: fill) flags(20..0) = transfer count (always in words)

例:

Graphics/Sprites/allocation_test/source/main.c.

swiDelay

(

uint32

duration

)

delay

Delays for for a period X + Y*duration where X is the swi overhead and Y is a cycle of

     loop:
       sub r0, #1
       bgt loop

of thumb fetches in BIOS memory

引数:

duration

length of delay

覚え書き:

Duration should be 1 or more, a duration of 0 is a huge delay

int swiDivide	(	int	numerator,
		int	divisor
	)

引数:

	numerator	signed integer to divide
	divisor	signed integer to divide by

戻り値:

numerator / divisor

void swiDivMod	(	int	numerator,
		int	divisor,
		int *	result,
		int *	remainder
	)

引数:

	numerator	signed integer to divide
	divisor	signed integer to divide by
	result	pointer to integer set to numerator / divisor
	remainder	pointer to integer set to numerator % divisor

swiFastCopy	(	const void *	source,
		void *	dest,
		int	flags
	)

引数:

	source	pointer to transfer source
	dest	dest = pointer to transfer destination
	flags	copy mode and size flags(24) = transfer mode (0: copy, 1: fill) flags(20..0) = transfer count (in words)

覚え書き:

Transfers more quickly than swiCopy, but has higher interrupt latency

int swiRemainder	(	int	numerator,
		int	divisor
	)

引数:

	numerator	signed integer to divide
	divisor	signed integer to divide by

戻り値:

numerator % divisor