commit e1e02e91e02da93c7fd95f24a9135f47802e23e8
author Gabe Black <gabeblack@google.com> Wed Aug 15 17:42:52 2018 -0700
committer Gabe Black <gabeblack@google.com> Thu Sep 20 01:48:49 2018 +0000
tree d51d33dc76a24f026a3e3b230534b6f6468e0a26
parent f30f30577409073416981004761a85364be1a986

systemc: Implement a little more of sc_time.

This change implements a pair of constructors, and some conversion
functions.

Change-Id: Ibd0e9ec5bcc24f4a17896313996b3112b5ef1934
Reviewed-on: https://gem5-review.googlesource.com/12208
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>

src/systemc/core/sc_time.cc

diff --git a/src/systemc/core/sc_time.cc b/src/systemc/core/sc_time.cc
index 0a52a6a..bc35f2a 100644
--- a/src/systemc/core/sc_time.cc
+++ b/src/systemc/core/sc_time.cc
@@ -150,14 +150,16 @@
     val = t.val;
 }
 
-sc_time::sc_time(double, bool)
+sc_time::sc_time(double d, bool scale)
 {
-    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    //XXX Assuming the time resolution is 1ps, and the default unit is 1ns.
+    set(this, d, scale ? SC_NS : SC_PS);
 }
 
-sc_time::sc_time(sc_dt::uint64, bool)
+sc_time::sc_time(sc_dt::uint64 v, bool scale)
 {
-    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    //XXX Assuming the time resolution is 1ps, and the default unit is 1ns.
+    set(this, static_cast<double>(v), scale ? SC_NS : SC_PS);
 }
 
 sc_time &
@@ -181,8 +183,10 @@
 double
 sc_time::to_seconds() const
 {
-    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
-    return 0.0;
+    double d = to_double();
+    //XXX Assuming the time resolution is 1ps.
+    double scale = TimeUnitScale[SC_PS] / TimeUnitScale[SC_SEC];
+    return d * scale;
 }
 
 const std::string
@@ -283,10 +287,11 @@
 }
 
 sc_time
-sc_time::from_seconds(double)
+sc_time::from_seconds(double d)
 {
-    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
-    return sc_time();
+    sc_time t;
+    set(&t, d, SC_SEC);
+    return t;
 }
 
 sc_time