NIRGAM

00001 
00002 /*
00003  * fifo.h
00004  *
00005  * This program is free software; you can redistribute it and/or
00006  * modify it under the terms of the GNU General Public License,
00007  * version 2, as published by the Free Software Foundation.
00008  *
00009  * This program is distributed in the hope that it will be useful,
00010  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012  * GNU General Public License for more details.
00013  *
00014  * You should have received a copy of the GNU General Public License along
00015  * with this program; if not, write to the Free Software Foundation, Inc.,
00016  * 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
00017  *
00018  * Author: Lavina Jain
00019  *
00020  */
00021 
00026 
00027 #ifndef _FIFO_
00028 #define _FIFO_
00029 #include "flit.h"
00030 #include "../config/extern.h"
00031 
00035 struct fifo {
00036         sc_uint<BUF_BITSIZE> num_bufs;  
00037         flit regs[MAX_NUM_BUFS];        
00038         bool full;                      
00039         bool empty;                     
00040         sc_uint<BUF_BITSIZE> pntr;      
00041         
00043         fifo() {
00044                 full = false;   // initialize full status to false
00045                 empty = true;   // initialize empty status to true
00046                 pntr = 0;       // no registers are occupied
00047                 num_bufs = NUM_BUFS;    // initialize depth of buffer as read from user
00048         };
00049 
00050         // FUNCTIONS /////////////////////////////////////////////////////////////////////////////
00051         void flit_in(const flit& data_flit);    
00052         flit flit_out();                        
00053         void flit_push(flit pack);              
00054         // FUNCTIONS END /////////////////////////////////////////////////////////////////////////////
00055 };
00056 
00057 #endif