diff options
Diffstat (limited to 'src/systemc/tlm_core/2/quantum')
| -rw-r--r-- | src/systemc/tlm_core/2/quantum/SConscript | 31 | ||||
| -rw-r--r-- | src/systemc/tlm_core/2/quantum/global_quantum.cc | 49 |
2 files changed, 80 insertions, 0 deletions
diff --git a/src/systemc/tlm_core/2/quantum/SConscript b/src/systemc/tlm_core/2/quantum/SConscript new file mode 100644 index 000000000..a1580471f --- /dev/null +++ b/src/systemc/tlm_core/2/quantum/SConscript @@ -0,0 +1,31 @@ +# Copyright 2018 Google, Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer; +# redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution; +# neither the name of the copyright holders nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +# +# Authors: Gabe Black + +Import('*') + +if env['USE_SYSTEMC']: + Source('global_quantum.cc') diff --git a/src/systemc/tlm_core/2/quantum/global_quantum.cc b/src/systemc/tlm_core/2/quantum/global_quantum.cc new file mode 100644 index 000000000..7ba44e3cb --- /dev/null +++ b/src/systemc/tlm_core/2/quantum/global_quantum.cc @@ -0,0 +1,49 @@ +/***************************************************************************** + + 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. + + *****************************************************************************/ + +#include <systemc> +#include <tlm> + +namespace tlm +{ + +tlm_global_quantum::tlm_global_quantum() : + m_global_quantum(sc_core::SC_ZERO_TIME) +{} + +tlm_global_quantum & +tlm_global_quantum::instance() +{ + static tlm_global_quantum instance_; + return instance_; +} + +sc_core::sc_time +tlm_global_quantum::compute_local_quantum() +{ + if (m_global_quantum != sc_core::SC_ZERO_TIME) { + const sc_core::sc_time current = sc_core::sc_time_stamp(); + const sc_core::sc_time g_quant = m_global_quantum; + return g_quant - (current % g_quant); + } else { + return sc_core::SC_ZERO_TIME; + } +} + +} // namespace tlm |