More BIOS functions

Macros
#define	DivMod   Mod

Functions
void	VBlankIntrDelay (u32 count)
	Wait for count frames.
int	DivSafe (int num, int den)
	Div/0-safe division.
int	Mod (int num, int den)
	Modulo: num % den.
u32	DivAbs (int num, int den)
	Absolute value of num / den.
int	DivArmMod (int den, int num)
	Modulo: num % den.
u32	DivArmAbs (int den, int num)
	Absolute value of num / den.
void	CpuFastFill (u32 wd, void *dst, u32 mode)
	A fast word fill.

Detailed Description

Function Documentation

CpuFastFill()

void CpuFastFill	(	u32	wd,
		void *	dst,
		u32	mode
	)

A fast word fill.

While you can perform fills with CpuFastSet(), the fact that swi 12 requires a source address makes it awkward to use. This function is more like the traditional memset formulation.

Parameters

wd	Fill word.
dst	Destination address.
mode	Number of words to transfer

DivSafe()

int DivSafe	(	int	num,
		int	den
	)

Div/0-safe division.

The standard Div hangs if den = 0. This version will return INT_MAX/MIN in that case, depending on the sign of num, or just num / den if den is not 0.

Parameters

num	Numerator.
den	Denominator.