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Diffstat (limited to 'src/lib/netlist/plib/pchrono.cpp')
-rw-r--r--src/lib/netlist/plib/pchrono.cpp28
1 files changed, 28 insertions, 0 deletions
diff --git a/src/lib/netlist/plib/pchrono.cpp b/src/lib/netlist/plib/pchrono.cpp
index f89df7dba07..354a2589851 100644
--- a/src/lib/netlist/plib/pchrono.cpp
+++ b/src/lib/netlist/plib/pchrono.cpp
@@ -1,14 +1,40 @@
// license:GPL-2.0+
// copyright-holders:Couriersud
+#if 0
+
#include "pchrono.h"
namespace plib {
namespace chrono {
#if defined(__x86_64__) && !defined(_clang__) && !defined(_MSC_VER) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 6))
+template <typename T>
+auto per_sec() -> typename T :: type
+{
+ using ret_type = typename T :: type;
+ static ret_type persec = 0;
+ if (persec == 0)
+ {
+ ret_type x = 0;
+ system_ticks::type t = system_ticks::start();
+ system_ticks::type e;
+ x = - T :: start();
+ do {
+ e = system_ticks::stop();
+ } while (e - t < system_ticks::per_second() / 100 );
+ x += T :: stop();
+ persec = (ret_type)(double)((double) x * (double) system_ticks::per_second() / double (e - t));
+ }
+ return persec;
+}
+
+
fast_ticks::type fast_ticks::per_second()
{
+#if 1
+ return per_sec<fast_ticks>();
+#else
static type persec = 0;
if (persec == 0)
{
@@ -23,6 +49,7 @@ fast_ticks::type fast_ticks::per_second()
persec = (type)(double)((double) x * (double) system_ticks::per_second() / double (e - t));
}
return persec;
+#endif
}
#if PUSE_ACCURATE_STATS && PHAS_RDTSCP
@@ -49,3 +76,4 @@ exact_ticks::type exact_ticks::per_second()
} // namespace chrono
} // namespace plib
+#endif