ReorderBuf< Data, Depth, InFlight > Class Template Reference

Reorder Buffer that allows out-of-order writes to queue and in-order reads. More...

#include <ReorderBuf.h>

Inheritance diagram for ReorderBuf< Data, Depth, InFlight >:

Public Types
typedef sc_uint< nvhls::index_width< InFlight >::val >	Id

Public Member Functions
bool	canAcceptRequest ()
Id	addRequest ()
bool	topResponseReady ()
void	addResponse (const Id &id, const Data &data)
Data	popResponse ()
void	reset ()
bool	isEmpty ()

Protected Types
typedef FIFO< bool, Depth >	VBits
typedef VBits::FifoIdx	EntryNum
typedef mem_array_sep< EntryNum, InFlight, 1 >	Id2Entry

Protected Member Functions
typedef	NVUINTW (InFlight) IdRepository
bool	get_next_avail_id (Id &id, IdRepository &id_repository)

Protected Attributes
mem_array_sep< Data, Depth, 1 >	storage
VBits	vbits
IdRepository	idrep
Id2Entry	id2entry

Detailed Description

template<typename Data, unsigned int Depth, unsigned int InFlight>
class ReorderBuf< Data, Depth, InFlight >

Reorder Buffer that allows out-of-order writes to queue and in-order reads.

Template Parameters

Data	DataType
Depth	Depth of queue
InFlight	Number of inflight entries

A Simple Example

     #include <ReorderBuf.h>

     ...
void ReorderBufTop( const OpType& op, 
                    const DataType& in_data,
                    const Rob::Id& in_id,
                    Rob::Id& out_id,
                    DataType& out_data,
                    bool& out_resp)
{
    static Rob rob;
    out_id = 0; out_resp = false; out_data =0;
    switch (op)
    {
        case canAccept:     out_resp =  rob.canAcceptRequest();         break;
        case addRequest:    out_id   =  rob.addRequest();               break;
        case top:           out_resp =  rob.topResponseReady();         break;
        case addResponse:               rob.addResponse(in_id, in_data);break;
        case popResponse:   out_data =  rob.popResponse();              break;
        case reset:                     rob.reset();                    break;
        case isEmpty:       out_resp =  rob.isEmpty();                  break;
        default:
            NVHLS_ASSERT_MSG(0,"invalid op"); //never get here
    }
}
     ...

Definition at line 68 of file ReorderBuf.h.

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The documentation for this class was generated from the following file:

• ReorderBuf.h