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systemc: Change how the default timescale is set.

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The spec says that the default timescale should be 1 PS, but the
Accellera implementation uses the time resolution.

Change-Id: I7b307a33ef0856e9c19d81e401b15691275d4978
Reviewed-on: https://gem5-review.googlesource.com/c/12975
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>
This commit is contained in:
Gabe Black
2018-09-22 08:09:31 -07:00
parent 9c56d8adfe
commit b58f56bf7f
1 changed files with 10 additions and 2 deletions
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12
src/systemc/utils/tracefile.cc
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@@ -37,6 +37,7 @@
#include "sim/core.hh"
#include "systemc/core/time.hh"
#include "systemc/ext/core/sc_main.hh"
#include "systemc/ext/core/sc_time.hh"
#include "systemc/ext/utils/functions.hh"
namespace sc_gem5
@@ -44,7 +45,7 @@ namespace sc_gem5
TraceFile::TraceFile(const std::string &name) :
_os(simout.create(name, true, true)), timeUnitTicks(0),
timeUnitValue(1.0), timeUnitUnit(::sc_core::SC_PS), _traceDeltas(false)
timeUnitValue(0.0), timeUnitUnit(::sc_core::SC_PS), _traceDeltas(false)
{}
TraceFile::~TraceFile()
@@ -76,7 +77,14 @@ TraceFile::set_time_unit(double d, ::sc_core::sc_time_unit tu)
void
TraceFile::finalizeTime()
{
timeUnitTicks = ::sc_core::sc_time(timeUnitValue, timeUnitUnit).value();
::sc_core::sc_time time;
if (timeUnitValue == 0.0) {
// The time scale was never set. Use the global time resolution.
time = ::sc_core::sc_get_time_resolution();
} else {
time = ::sc_core::sc_time(timeUnitValue, timeUnitUnit);
}
timeUnitTicks = time.value();
}
} // namespace sc_gem5