Useful Macros - otStudio useful macro definitions
[Definitions automatically generated by otStudio]


Defines
#define	TRACE(format,) printf( "%s::%s(%d)" format, __FILE__, __FUNCTION__, __LINE__, __VA_ARGS__ )
	Simple trace method.
#define	BIT(x) (1<<(x))
	Bit weight.
#define	SETBIT(x, p) ((x)\|(1<<(p)))
	Set a bit in the word.
#define	CLEARBIT(x, p) ((x)&(~(1<<(p))))
	Clear a bit in the word.
#define	GETBIT(x, p) (((x)>>(p))&1)
	Get a bit value of a word.
#define	TOGGLEBIT(x, p) ((x)^(1<<(p)))
	Toggle a bit in a word.
#define	SSYNC asm("ssync;")
	Cache killer.
#define	NOP asm("nop;")
	1 clock delay
#define	DI asm("cli R5;")
	Disable interrupt.
#define	EI asm("sti R5;")
	Enable interrupt.
#define	LF 10
	Line feed.
#define	CR 13
	Carriage return.
#define	MIN(a, b) (((a) < (b)) ? (a) : (b))
	Minimum value.
#define	MAX(a, b) (((a) < (b)) ? (a) : (b))
	Maximum value.
#define	SWAP(a, b) { U32 t = a; a = b; b = t; }
	Swap 32 bit variables contents.
#define	abs(x) ((x)<0 ? -(x) : (x))
	Absolute value.
#define	constrain(amt, low, high) ((amt) < (low) ? (low) : ((amt) > (high) ? (high) : (amt)))
	Constrains a number to be within a range.
#define	bitRead(value, bit) (((value) >> (bit)) & 0x01)
#define	bitSet(value, bit) ((value) \|= (1UL << (bit)))
#define	bitClear(value, bit) ((value) &= ~(1UL << (bit)))
#define	bitWrite(value, bit, bitvalue) (bitvalue ? bitSet(value, bit) : bitClear(value, bit))
#define	NULL 0
	Null pointer.
#define	EOF -1
	End-of-File, It is a macro definition of type int that expands into a negative integral constant expression (generally, -1).

Define Documentation

#define abs ( x ) ((x)<0 ? -(x) : (x))

#define BIT ( x ) (1<<(x))

#define bitClear ( value,
bit ) ((value) &= ~(1UL << (bit)))

#define bitRead ( value,
bit ) (((value) >> (bit)) & 0x01)

#define bitSet ( value,
bit ) ((value) |= (1UL << (bit)))

#define bitWrite ( value,
bit,
bitvalue ) (bitvalue ? bitSet(value, bit) : bitClear(value, bit))

#define CLEARBIT ( x,
p ) ((x)&(~(1<<(p))))

#define constrain ( amt,
low,
high ) ((amt) < (low) ? (low) : ((amt) > (high) ? (high) : (amt)))

#define CR 13

#define DI asm("cli R5;")

#define EI asm("sti R5;")

#define EOF -1

#define GETBIT ( x,
p ) (((x)>>(p))&1)

#define LF 10

#define MAX ( a,
b ) (((a) < (b)) ? (a) : (b))

#define MIN ( a,
b ) (((a) < (b)) ? (a) : (b))

#define NOP asm("nop;")

#define NULL 0

#define SETBIT ( x,
p ) ((x)|(1<<(p)))

#define SSYNC asm("ssync;")

#define SWAP ( a,
b ) { U32 t = a; a = b; b = t; }

#define TOGGLEBIT ( x,
p ) ((x)^(1<<(p)))

#define TRACE ( format ) printf( "%s::%s(%d)" format, __FILE__, __FUNCTION__, __LINE__, __VA_ARGS__ )

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