00001 /***************************************************************************** 00002 00003 The following code is derived, directly or indirectly, from the SystemC 00004 source code Copyright (c) 1996-2006 by all Contributors. 00005 All Rights reserved. 00006 00007 The contents of this file are subject to the restrictions and limitations 00008 set forth in the SystemC Open Source License Version 2.4 (the "License"); 00009 You may not use this file except in compliance with such restrictions and 00010 limitations. You may obtain instructions on how to receive a copy of the 00011 License at http://www.systemc.org/. Software distributed by Contributors 00012 under the License is distributed on an "AS IS" basis, WITHOUT WARRANTY OF 00013 ANY KIND, either express or implied. See the License for the specific 00014 language governing rights and limitations under the License. 00015 00016 *****************************************************************************/ 00017 00018 /***************************************************************************** 00019 00020 sc_signal.cpp -- The sc_signal<T> primitive channel class. 00021 00022 Original Author: Martin Janssen, Synopsys, Inc., 2001-05-21 00023 00024 *****************************************************************************/ 00025 00026 /***************************************************************************** 00027 00028 MODIFICATION LOG - modifiers, enter your name, affiliation, date and 00029 changes you are making here. 00030 00031 Name, Affiliation, Date: 00032 Description of Modification: 00033 00034 *****************************************************************************/ 00035 00036 /* 00037 $Log: sc_signal.cpp,v $ 00038 Revision 1.2 2007/04/02 17:24:30 acg 00039 Andy Goodrich: added check for null writer pointers in sc_signal invalid 00040 writer method. 00041 00042 Revision 1.1.1.1 2006/12/15 20:31:35 acg 00043 SystemC 2.2 00044 00045 Revision 1.7 2006/04/11 23:11:57 acg 00046 Andy Goodrich: Changes for reset support that only includes 00047 sc_cthread_process instances. 00048 00049 Revision 1.6 2006/03/13 20:19:44 acg 00050 Andy Goodrich: changed sc_event instances into pointers to sc_event instances 00051 that are allocated as needed. This saves considerable storage for large 00052 numbers of signals, etc. 00053 00054 Revision 1.5 2006/01/25 00:31:11 acg 00055 Andy Goodrich: Changed over to use a standard message id of 00056 SC_ID_IEEE_1666_DEPRECATION for all deprecation messages. 00057 00058 Revision 1.4 2006/01/24 20:46:32 acg 00059 Andy Goodrich: changes to eliminate use of deprecated features. For instance, 00060 using notify(SC_ZERO_TIME) in place of notify_delayed(). 00061 00062 Revision 1.3 2006/01/18 21:42:26 acg 00063 Andy Goodrich: Changes for check writer support, and tightening up sc_clock 00064 port usage. 00065 00066 Revision 1.2 2006/01/03 23:18:26 acg 00067 Changed copyright to include 2006. 00068 00069 Revision 1.1.1.1 2005/12/19 23:16:43 acg 00070 First check in of SystemC 2.1 into its own archive. 00071 00072 Revision 1.14 2005/09/15 23:01:51 acg 00073 Added std:: prefix to appropriate methods and types to get around 00074 issues with the Edison Front End. 00075 00076 Revision 1.13 2005/05/08 19:04:06 acg 00077 Fix bug in concat_set(int64,off). Other changes from 2.1 examples usage. 00078 00079 Revision 1.12 2005/04/04 00:15:51 acg 00080 Changes for directory name change to sys from systemc. 00081 Changes for sc_string going to std::string. 00082 Changes for sc_pvector going to std::vector. 00083 Changes for reference pools for bit and part selections. 00084 Changes for const sc_concatref support. 00085 00086 Revision 1.10 2005/03/21 22:31:32 acg 00087 Changes to sc_core namespace. 00088 00089 Revision 1.9 2004/09/27 21:02:54 acg 00090 Andy Goodrich - Forte Design Systems, Inc. 00091 - Added a $Log comment so that CVS checkin comments will appear in 00092 checked out source. 00093 00094 */ 00095 00096 00097 #include "sysc/communication/sc_communication_ids.h" 00098 #include "sysc/utils/sc_utils_ids.h" 00099 #include "sysc/communication/sc_signal.h" 00100 #include "sysc/datatypes/int/sc_signed.h" 00101 #include "sysc/datatypes/int/sc_unsigned.h" 00102 #include "sysc/datatypes/bit/sc_lv_base.h" 00103 #include "sysc/kernel/sc_reset.h" 00104 00105 using sc_dt::sc_lv_base; 00106 using sc_dt::sc_signed; 00107 using sc_dt::sc_unsigned; 00108 using sc_dt::int64; 00109 using sc_dt::uint64; 00110 00111 namespace sc_core { 00112 00113 // to avoid code bloat in sc_signal<T> 00114 00115 void 00116 sc_signal_invalid_writer( 00117 sc_object* target, sc_object* first_writer, sc_object* second_writer ) 00118 { 00119 char msg[BUFSIZ]; 00120 const char* target_name = target->name(); 00121 const char* target_kind = target->kind(); 00122 const char* writer1_name = first_writer->name(); 00123 const char* writer1_kind = first_writer->kind(); 00124 const char* writer2_name; 00125 const char* writer2_kind; 00126 if ( second_writer ) 00127 { 00128 writer2_name = second_writer->name(); 00129 writer2_kind = second_writer->kind(); 00130 00131 std::sprintf( msg, "\n signal `%s' (%s)" 00132 "\n first driver `%s' (%s)" 00133 "\n second driver `%s' (%s)", 00134 target_name, target_kind, 00135 writer1_name, writer1_kind, 00136 writer2_name, writer2_kind ); 00137 SC_REPORT_ERROR( SC_ID_MORE_THAN_ONE_SIGNAL_DRIVER_, msg ); 00138 } 00139 } 00140 00141 00142 // ---------------------------------------------------------------------------- 00143 // CLASS : sc_signal<bool> 00144 // 00145 // Specialization of sc_signal<T> for type bool. 00146 // ---------------------------------------------------------------------------- 00147 00148 00149 // reset support: 00150 00151 sc_reset* sc_signal<bool>::is_reset() const 00152 { 00153 sc_reset* result_p; 00154 if ( !m_reset_p ) m_reset_p = new sc_reset( this ); 00155 result_p = m_reset_p; 00156 return result_p; 00157 } 00158 00159 // destructor 00160 00161 sc_signal<bool>::~sc_signal() 00162 { 00163 if ( !m_change_event_p ) delete m_change_event_p; 00164 if ( !m_negedge_event_p ) delete m_negedge_event_p; 00165 if ( !m_posedge_event_p ) delete m_posedge_event_p; 00166 if ( m_reset_p ) delete m_reset_p; 00167 } 00168 00169 00170 // ---------------------------------------------------------------------------- 00171 // CLASS : sc_signal<sc_logic> 00172 // 00173 // Specialization of sc_signal<T> for type sc_logic. 00174 // ---------------------------------------------------------------------------- 00175 00176 00177 void sc_deprecated_get_data_ref() 00178 { 00179 static bool warn_get_data_ref_deprecated=true; 00180 if ( warn_get_data_ref_deprecated ) 00181 { 00182 warn_get_data_ref_deprecated=false; 00183 SC_REPORT_INFO(SC_ID_IEEE_1666_DEPRECATION_, 00184 "get_data_ref() is deprecated, use read() instead" ); 00185 } 00186 } 00187 00188 void sc_deprecated_get_new_value() 00189 { 00190 static bool warn_new_value=true; 00191 if ( warn_new_value ) 00192 { 00193 warn_new_value=false; 00194 SC_REPORT_INFO(SC_ID_IEEE_1666_DEPRECATION_, 00195 "sc_signal<T>::get_new_value() is deprecated"); 00196 } 00197 } 00198 00199 void sc_deprecated_trace() 00200 { 00201 static bool warn_trace_deprecated=true; 00202 if ( warn_trace_deprecated ) 00203 { 00204 warn_trace_deprecated=false; 00205 SC_REPORT_INFO(SC_ID_IEEE_1666_DEPRECATION_, 00206 "sc_signal<T>::trace() is deprecated"); 00207 } 00208 } 00209 00210 } // namespace sc_core 00211 00212 // Taf!
1.5.6