aa651c7f83
In the past it happened several times that some changes in gem5 broke the SystemC coupling. Recently Accelera has changed the licence for SystemC from their own licence to Apache2.0, which is compatible with gem5. However, SystemC usually relies on the Boost library, but I was able to exchange the boost calls by c++11 alternatives. The recent SystemC version is placed into /ext and is integrated into gem5's build system. The goal is to integrate some SystemC tests for the CI in some following patches. Change-Id: I4b66ec806b5e3cffc1d7c85d3735ff4fa5b31fd0 Reviewed-on: https://gem5-review.googlesource.com/2240 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
170 lines
4.9 KiB
C++
170 lines
4.9 KiB
C++
/*****************************************************************************
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Licensed to Accellera Systems Initiative Inc. (Accellera) under one or
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more contributor license agreements. See the NOTICE file distributed
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with this work for additional information regarding copyright ownership.
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Accellera licenses this file to you under the Apache License, Version 2.0
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(the "License"); you may not use this file except in compliance with the
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License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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implied. See the License for the specific language governing
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permissions and limitations under the License.
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*****************************************************************************/
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/*****************************************************************************
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sc_wait_cthread.cpp -- Wait() and related functions for SC_CTHREADs.
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Original Author: Stan Y. Liao, Synopsys, Inc.
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Martin Janssen, Synopsys, Inc.
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CHANGE LOG AT THE END OF THE FILE
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*****************************************************************************/
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#include "sysc/kernel/sc_kernel_ids.h"
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#include "sysc/kernel/sc_cthread_process.h"
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#include "sysc/kernel/sc_simcontext_int.h"
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#include "sysc/kernel/sc_wait_cthread.h"
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#include "sysc/communication/sc_port.h"
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#include "sysc/kernel/sc_wait.h"
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namespace sc_core
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{
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// for SC_CTHREADs
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void
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halt( sc_simcontext* simc )
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{
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sc_curr_proc_handle cpi = simc->get_curr_proc_info();
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switch( cpi->kind ) {
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case SC_CTHREAD_PROC_: {
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RCAST<sc_cthread_handle>( cpi->process_handle )->wait_halt();
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break;
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}
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default:
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SC_REPORT_ERROR( SC_ID_HALT_NOT_ALLOWED_, 0 );
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break;
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}
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}
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void
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wait( int n, sc_simcontext* simc )
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{
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sc_curr_proc_handle cpi = simc->get_curr_proc_info();
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if( n <= 0 ) {
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char msg[BUFSIZ];
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std::sprintf( msg, "n = %d", n );
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SC_REPORT_ERROR( SC_ID_WAIT_N_INVALID_, msg );
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}
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switch( cpi->kind ) {
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case SC_THREAD_PROC_:
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case SC_CTHREAD_PROC_:
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RCAST<sc_cthread_handle>( cpi->process_handle )->wait_cycles( n );
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break;
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default:
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SC_REPORT_ERROR( SC_ID_WAIT_NOT_ALLOWED_, "\n "
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"in SC_METHODs use next_trigger() instead" );
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break;
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}
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}
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void
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at_posedge( const sc_signal_in_if<bool>& s, sc_simcontext* simc )
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{
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if( s.read() == true )
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do { wait(simc); } while ( s.read() == true );
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do { wait(simc); } while ( s.read() == false );
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}
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void
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at_posedge( const sc_signal_in_if<sc_dt::sc_logic>& s, sc_simcontext* simc )
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{
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if( s.read() == '1' )
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do { wait(simc); } while ( s.read() == '1' );
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do { wait(simc); } while ( s.read() == '0' );
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}
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void
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at_negedge( const sc_signal_in_if<bool>& s, sc_simcontext* simc )
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{
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if( s.read() == false )
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do { wait(simc); } while ( s.read() == false );
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do { wait(simc); } while ( s.read() == true );
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}
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void
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at_negedge( const sc_signal_in_if<sc_dt::sc_logic>& s, sc_simcontext* simc )
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{
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if( s.read() == '0' )
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do { wait(simc); } while ( s.read() == '0' );
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do { wait(simc); } while ( s.read() == '1' );
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}
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} // namespace sc_core
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/*
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$Log: sc_wait_cthread.cpp,v $
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Revision 1.6 2011/08/26 20:46:11 acg
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Andy Goodrich: moved the modification log to the end of the file to
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eliminate source line number skew when check-ins are done.
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Revision 1.5 2011/02/18 20:27:14 acg
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Andy Goodrich: Updated Copyrights.
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Revision 1.4 2011/02/13 21:47:38 acg
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Andy Goodrich: update copyright notice.
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Revision 1.3 2009/10/14 19:07:42 acg
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Andy Goodrich: added an error message for wait(n) being called from an
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SC_METHOD.
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Revision 1.2 2008/05/22 17:06:27 acg
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Andy Goodrich: updated copyright notice to include 2008.
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Revision 1.1.1.1 2006/12/15 20:20:05 acg
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SystemC 2.3
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Revision 1.3 2006/03/13 20:26:51 acg
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Andy Goodrich: Addition of forward class declarations, e.g.,
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sc_reset, to keep gcc 4.x happy.
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Revision 1.2 2006/01/03 23:18:45 acg
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Changed copyright to include 2006.
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Revision 1.1.1.1 2005/12/19 23:16:44 acg
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First check in of SystemC 2.1 into its own archive.
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Revision 1.10 2005/09/15 23:02:18 acg
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Added std:: prefix to appropriate methods and types to get around
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issues with the Edison Front End.
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Revision 1.9 2005/09/02 19:03:30 acg
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Changes for dynamic processes. Removal of lambda support.
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Revision 1.8 2005/04/04 00:16:08 acg
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Changes for directory name change to sys from systemc.
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Changes for sc_string going to std::string.
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Changes for sc_pvector going to std::vector.
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Changes for reference pools for bit and part selections.
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Changes for const sc_concatref support.
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Revision 1.5 2004/09/27 20:49:10 acg
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Andy Goodrich, Forte Design Systems, Inc.
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- Added a $Log comment so that CVS checkin comments appear in the
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checkout source.
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*/
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// Taf!
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