| /***************************************************************************** |
| |
| 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. |
| |
| *****************************************************************************/ |
| |
| /***************************************************************************** |
| |
| pr57.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 "systemc.h" |
| |
| SC_MODULE( pr57 ) |
| { |
| SC_HAS_PROCESS( pr57 ); |
| |
| sc_in_clk clk; |
| |
| const sc_signal<bool>& a; |
| sc_signal<bool>& b; |
| |
| bool c; |
| bool d; |
| |
| pr57( sc_module_name NAME, |
| sc_clock& CLK, |
| const sc_signal<bool>& A, |
| sc_signal<bool>& B ) |
| : |
| a(A), b(B) |
| { |
| clk(CLK); |
| SC_CTHREAD( entry, clk.pos() ); |
| } |
| void entry(); |
| bool pres1(bool x, bool y); |
| bool pres2(bool x); |
| void pres3(bool z); |
| }; |
| |
| bool |
| pr57::pres1(bool x, bool y) |
| { |
| bool u = x | c; |
| bool v = y & d; |
| bool t = d; |
| d = y; |
| c = t; |
| return u ^ v; |
| } |
| |
| bool |
| pr57::pres2(bool x) |
| { |
| bool u = x & c & d; |
| d = x ^ u; |
| return u; |
| } |
| |
| void |
| pr57::pres3(bool z) |
| { |
| c = z; |
| } |
| |
| void |
| pr57::entry() |
| { |
| c = a; |
| d = ! a.read(); |
| b = pres1(1, 0); |
| wait(); |
| c = ! a.read(); |
| d = a; |
| b = pres1(0, 1); |
| wait(); |
| c = a; |
| d = ! a.read(); |
| b = pres2(0); |
| wait(); |
| pres3(!a.read()); |
| d = a; |
| b = pres2(1); |
| wait(); |
| } |
| |
| int |
| sc_main( int, char*[] ) |
| { |
| return 0; |
| } |