112855Sgabeblack@google.com/*****************************************************************************
212855Sgabeblack@google.com
312855Sgabeblack@google.com  Licensed to Accellera Systems Initiative Inc. (Accellera) under one or
412855Sgabeblack@google.com  more contributor license agreements.  See the NOTICE file distributed
512855Sgabeblack@google.com  with this work for additional information regarding copyright ownership.
612855Sgabeblack@google.com  Accellera licenses this file to you under the Apache License, Version 2.0
712855Sgabeblack@google.com  (the "License"); you may not use this file except in compliance with the
812855Sgabeblack@google.com  License.  You may obtain a copy of the License at
912855Sgabeblack@google.com
1012855Sgabeblack@google.com    http://www.apache.org/licenses/LICENSE-2.0
1112855Sgabeblack@google.com
1212855Sgabeblack@google.com  Unless required by applicable law or agreed to in writing, software
1312855Sgabeblack@google.com  distributed under the License is distributed on an "AS IS" BASIS,
1412855Sgabeblack@google.com  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
1512855Sgabeblack@google.com  implied.  See the License for the specific language governing
1612855Sgabeblack@google.com  permissions and limitations under the License.
1712855Sgabeblack@google.com
1812855Sgabeblack@google.com *****************************************************************************/
1912855Sgabeblack@google.com
2012855Sgabeblack@google.com/*****************************************************************************
2112855Sgabeblack@google.com
2212855Sgabeblack@google.com  data_gen.cpp --
2312855Sgabeblack@google.com
2412855Sgabeblack@google.com  Original Author: Martin Janssen, Synopsys, Inc., 2002-02-15
2512855Sgabeblack@google.com
2612855Sgabeblack@google.com *****************************************************************************/
2712855Sgabeblack@google.com
2812855Sgabeblack@google.com/*****************************************************************************
2912855Sgabeblack@google.com
3012855Sgabeblack@google.com  MODIFICATION LOG - modifiers, enter your name, affiliation, date and
3112855Sgabeblack@google.com  changes you are making here.
3212855Sgabeblack@google.com
3312855Sgabeblack@google.com      Name, Affiliation, Date:
3412855Sgabeblack@google.com  Description of Modification:
3512855Sgabeblack@google.com
3612855Sgabeblack@google.com *****************************************************************************/
3712855Sgabeblack@google.com
3812855Sgabeblack@google.com#include "common.h"
3912855Sgabeblack@google.com#include "add_chain.h"
4012855Sgabeblack@google.com
4112855Sgabeblack@google.com/******************************************************************************/
4212855Sgabeblack@google.com/***************************    data_gen Function        **********************/
4312855Sgabeblack@google.com/******************************************************************************/
4412855Sgabeblack@google.com
4512855Sgabeblack@google.comSC_MODULE( DATA_GEN )
4612855Sgabeblack@google.com{
4712855Sgabeblack@google.com    SC_HAS_PROCESS( DATA_GEN );
4812855Sgabeblack@google.com
4912855Sgabeblack@google.com    sc_in_clk clk;
5012855Sgabeblack@google.com
5112855Sgabeblack@google.com  /*** Input and Output Ports ***/
5212855Sgabeblack@google.com  const sc_signal<bool>&       	ready;
5312855Sgabeblack@google.com        signal_bool_vector8&   	data;
5412855Sgabeblack@google.com        sc_signal<int>&		addr;
5512855Sgabeblack@google.com
5612855Sgabeblack@google.com  /*** Constructor ***/
5712855Sgabeblack@google.com  DATA_GEN (   sc_module_name                	NAME,
5812855Sgabeblack@google.com                     sc_clock&            	TICK_N,
5912855Sgabeblack@google.com               const sc_signal<bool>&    	READY,
6012855Sgabeblack@google.com                     signal_bool_vector8& 	DATA,
6112855Sgabeblack@google.com  		     sc_signal<int>&		ADDR   )
6212855Sgabeblack@google.com
6312855Sgabeblack@google.com    :
6412855Sgabeblack@google.com		ready (READY),
6512855Sgabeblack@google.com              	data  (DATA),	// 8 bits
6612855Sgabeblack@google.com		addr  (ADDR)
6712855Sgabeblack@google.com
6812855Sgabeblack@google.com    {
6912855Sgabeblack@google.com	    clk (TICK_N);
7012855Sgabeblack@google.com        SC_CTHREAD( entry, clk.neg() );
7112855Sgabeblack@google.com    }
7212855Sgabeblack@google.com
7312855Sgabeblack@google.com  /*** Call to Process Functionality ***/
7412855Sgabeblack@google.com  void entry();
7512855Sgabeblack@google.com
7612855Sgabeblack@google.com};
7712855Sgabeblack@google.com
7812855Sgabeblack@google.comvoid
7912855Sgabeblack@google.comDATA_GEN::entry()
8012855Sgabeblack@google.com{
8112855Sgabeblack@google.com  while(true) {
8212855Sgabeblack@google.com
8312855Sgabeblack@google.com/**  WAIT FOR POSEDGE OF ready  **/
8412855Sgabeblack@google.com
8512855Sgabeblack@google.com    do { wait(); } while (ready == 1);		// Posedge ready
8612855Sgabeblack@google.com    do { wait(); } while (ready == 0);
8712855Sgabeblack@google.com
8812855Sgabeblack@google.com/**  CHECK TO SEE IF THE END OF MEMORY HAS BEEN REACHED  **/
8912855Sgabeblack@google.com
9012855Sgabeblack@google.com    if(addr.read() > LIMIT) { 		// if(addr > LIMIT)
9112855Sgabeblack@google.com	break;
9212855Sgabeblack@google.com    }
9312855Sgabeblack@google.com
9412855Sgabeblack@google.com/**  WRITE VALUE OF MEMORY AT CURRENT ADDRESS TO data  **/
9512855Sgabeblack@google.com
9612855Sgabeblack@google.com    data.write(mem[addr.read()]);	// data = mem[addr]
9712855Sgabeblack@google.com
9812855Sgabeblack@google.com/**  INCREMENT addr BY 1  **/
9912855Sgabeblack@google.com
10012855Sgabeblack@google.com    addr.write(addr.read() + 1);   	// addr = addr + 1
10112855Sgabeblack@google.com  }
10212855Sgabeblack@google.com
10312855Sgabeblack@google.com}
10412855Sgabeblack@google.com
10512855Sgabeblack@google.comvoid
10612855Sgabeblack@google.comf_DATA_GEN (   const char*          NAME,
10712855Sgabeblack@google.com                     sc_clock&      TICK,
10812855Sgabeblack@google.com               const sc_signal<bool>&     READY,
10912855Sgabeblack@google.com                     signal_bool_vector8& DATA,
11012855Sgabeblack@google.com                     sc_signal<int>&      ADDR   )
11112855Sgabeblack@google.com
11212855Sgabeblack@google.com{
11312855Sgabeblack@google.com        new DATA_GEN(NAME, TICK, READY, DATA, ADDR);
11412855Sgabeblack@google.com}
11512855Sgabeblack@google.com
116