A generalized implementation of generic n-way roundrobin arbiter. More...

#include <Arbiter.h>

Protected Types
enum	_ { UNROLLED_SIZE = 2 * size_ - 1 , log_unrolled_size = nvhls::log2_ceil<UNROLLED_SIZE>::val , log_size = nvhls::log2_ceil<size_>::val }

Protected Member Functions
typedef	NVUINTW (UNROLLED_SIZE) UnrolledMask

Detailed Description

template<unsigned int size_, arbiter_type ArbiterType = Roundrobin>
class Arbiter< size_, ArbiterType >

A generalized implementation of generic n-way roundrobin arbiter.

Template Parameters

size_	Number of elements to be arbitrated.
ArbiterType	Selecting arbitration method. Current class implements Roundrobin, and a dedicated [class] (class_arbiter_3_01size___00_01_static_01_4.html) implements Static. (default: Roundrobin).

Overview

Given a vector indicating which elements are currently valid for selection, and previous selection, a new selection will be made.
Once a selection is made internal state is updated.
Selection is returned in form of a one-hot bitmask.
In case no entry is valid a zero selection mask will be returned.

A Simple Example: #include <Arbiter.h>

...

Arbiter<4> arbiter;

arbiter.reset(); // optional in this case, suitable if arbiter is a class member rather than local variable

while (1) {

...

Arbiter<4>::Mask active = ~0; // active mask is set, in this case all set to active

Arbiter<4>::Mask select = arbiter.pick(active);

...

};

Arbiter
A generalized implementation of generic n-way roundrobin arbiter.
Definition Arbiter.h:61

Definition at line 61 of file Arbiter.h.