| /***************************************************************************** |
| |
| Licensed to Accellera Systems Initiative Inc. (Accellera) under one or |
| more contributor license agreements. See the NOTICE file distributed |
| with this work for additional information regarding copyright ownership. |
| Accellera licenses this file to you under the Apache License, Version 2.0 |
| (the "License"); you may not use this file except in compliance with the |
| License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or |
| implied. See the License for the specific language governing |
| permissions and limitations under the License. |
| |
| *****************************************************************************/ |
| |
| /***************************************************************************** |
| |
| add_chain.cpp -- |
| |
| Original Author: Martin Janssen, Synopsys, Inc., 2002-02-15 |
| |
| *****************************************************************************/ |
| |
| /***************************************************************************** |
| |
| MODIFICATION LOG - modifiers, enter your name, affiliation, date and |
| changes you are making here. |
| |
| Name, Affiliation, Date: |
| Description of Modification: |
| |
| *****************************************************************************/ |
| |
| #include "common.h" |
| |
| /******************************************************************************/ |
| /*************************** add_chain Class Definition ********************/ |
| /******************************************************************************/ |
| |
| SC_MODULE( add_chain ) |
| { |
| SC_HAS_PROCESS( add_chain ); |
| |
| sc_in_clk clk; |
| |
| const sc_signal<bool>& rst; |
| const signal_bool_vector8& a_in; |
| signal_bool_vector4& sum_out; |
| sc_signal<bool>& ready; |
| |
| add_chain( sc_module_name NAME, |
| sc_clock& TICK_P, |
| |
| const sc_signal<bool>& RST, |
| const signal_bool_vector8& A_IN, |
| signal_bool_vector4& SUM_OUT, |
| sc_signal<bool>& READY |
| ) |
| : |
| rst (RST), |
| a_in (A_IN), |
| sum_out (SUM_OUT), |
| ready (READY) |
| { |
| clk(TICK_P); |
| SC_CTHREAD( entry, clk.pos() ); |
| reset_signal_is(rst,0); |
| } |
| void entry(); |
| }; |
| |
| /******************************************************************************/ |
| /*************************** add_chain Entry Function **********************/ |
| /******************************************************************************/ |
| /** **/ |
| /** This function sums the number of 1's contained in a 8-bit data stream **/ |
| /** **/ |
| /******************************************************************************/ |
| void |
| add_chain::entry() |
| { |
| bool_vector4 sum; |
| bool_vector8 a; |
| |
| /***** Reset Initialization *****/ |
| sum_out.write(0); |
| ready.write(1); |
| wait(); |
| |
| /***** MAIN LOOP *****/ |
| while(true) { |
| a = a_in; |
| |
| /***** Handshake *****/ |
| ready.write(0); |
| wait(); |
| |
| /***** Computation *****/ |
| sum = 0; |
| |
| for (int i=0; i<=7; i=i+1) { |
| sum = sum.to_uint() + a[i].to_bool(); |
| } |
| |
| sum_out.write(sum); |
| |
| /***** Handshake *****/ |
| ready.write(1); |
| wait(); |
| } |
| } |
| |
| void |
| f_add_chain( const char* NAME, |
| sc_clock& TICK, |
| const sc_signal<bool>& RST, |
| const signal_bool_vector8& A_IN, |
| signal_bool_vector4& SUM_OUT, |
| sc_signal<bool>& READY ) |
| |
| { |
| new add_chain(NAME, TICK, RST, A_IN, SUM_OUT, READY); |
| } |
| |