Integer Operations

Intrinsics allowing you to perform select, absolute and delay operations on integer scalars. More...

Overview

Intrinsics allowing you to perform select, absolute and delay operations on integer scalars.

Functions
int	scalar_abs (int a)
	Scalar absolute value intrinsic. More...

Scalar select intrinsics
Scalar select These instructions are equivalent to the ternary ?: operator and should normally be inferred by the compiler automatically.
char	select (bool, char, char)
unsigned char	select (bool, unsigned char, unsigned char)
signed short	select (bool, signed short, signed short)
unsigned short	select (bool, unsigned short, unsigned short)
int	select (bool, int, int)
unsigned int	select (bool, unsigned int, unsigned int)
long	select (bool, long, long)
unsigned long	select (bool, unsigned long, unsigned long)
void *	select (bool, void *, void *)

Integer delay line
Returns the integer that is given as input after N cycles.
int	delay1 (int)
int	delay2 (int)
int	delay3 (int)
int	delay4 (int)
int	delay5 (int)
int	delay6 (int)

Pointer delay line
Returns the pointer that is given as input after N cycles.
void *	delay1 (void *)
void *	delay2 (void *)
void *	delay3 (void *)
void *	delay4 (void *)
void *	delay5 (void *)
void *	delay6 (void *)

Leading bit count
unsigned	clb (int n)
	Count number of leading consecutive bits. If a is positive, count leading 0's, otherwise count leading 1's. More...
unsigned	clb (unsigned n)
	Count number of leading consecutive 0's. More...
unsigned	clb (long long a)
	Count number of leading consecutive bits. If a is positive, count leading 0's, otherwise count leading 1's. More...
unsigned	clb (unsigned long long a)
	Count number of leading consecutive 0's. More...

NOP
void	nop (unsigned delay)
	Insert pipeline bubbles in the micro-code. More...
void	nop ()
	Insert 2 pipeline bubbles in the micro-code. More...

Function Documentation

clb() [1/4]

unsigned clb

(

int

n

)

Count number of leading consecutive bits. If a is positive, count leading 0's, otherwise count leading 1's.

clb() [2/4]

unsigned clb

(

long long

a

)

Count number of leading consecutive bits. If a is positive, count leading 0's, otherwise count leading 1's.

clb() [3/4]

unsigned clb

(

unsigned long long

a

)

Count number of leading consecutive 0's.

clb() [4/4]

unsigned clb

(

unsigned

n

)

Count number of leading consecutive 0's.

delay1() [1/2]

int delay1

(

int

)

delay1() [2/2]

void* delay1

(

void *

)

delay2() [1/2]

int delay2

(

int

)

delay2() [2/2]

void* delay2

(

void *

)

delay3() [1/2]

int delay3

(

int

)

delay3() [2/2]

void* delay3

(

void *

)

delay4() [1/2]

int delay4

(

int

)

delay4() [2/2]

void* delay4

(

void *

)

delay5() [1/2]

int delay5

(

int

)

delay5() [2/2]

void* delay5

(

void *

)

delay6() [1/2]

int delay6

(

int

)

delay6() [2/2]

void* delay6

(

void *

)

nop() [1/2]

void nop

(

)

Insert 2 pipeline bubbles in the micro-code.

Note

Subsequent nops will be collapsed into a single nop (only the maximum value will be seen).

nop() [2/2]

void nop

(

unsigned

delay

)

Insert pipeline bubbles in the micro-code.

Parameters

delay

Number of cycles between two instructions.

Note

Delay must be a compile time constant.

Subsequent nops will be collapsed into a single nop (only the maximum value will be seen).

scalar_abs()

int scalar_abs

(

int

a

)

Scalar absolute value intrinsic.

select() [1/9]

char select	(	bool	,
		char	,
		char
	)

select() [2/9]

int select	(	bool	,
		int	,
		int
	)

select() [3/9]

long select	(	bool	,
		long	,
		long
	)

select() [4/9]

signed short select	(	bool	,
		signed short	,
		signed short
	)

select() [5/9]

unsigned char select	(	bool	,
		unsigned char	,
		unsigned char
	)

select() [6/9]

unsigned int select	(	bool	,
		unsigned int	,
		unsigned int
	)

select() [7/9]

unsigned long select	(	bool	,
		unsigned long	,
		unsigned long
	)

select() [8/9]

unsigned short select	(	bool	,
		unsigned short	,
		unsigned short
	)

select() [9/9]

void* select	(	bool	,
		void *	,
		void *
	)