systemc: Add the Accellera implementation for the data type classes.

These files have been cleaned up style wise, and some macros have been
resolved like they were for the header files.

Change-Id: I447e5311961036847e7da0c5a86c0da25a633010
Reviewed-on: https://gem5-review.googlesource.com/10844
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>

1 files changed, 163 insertions, 0 deletions

diff --git a/src/systemc/dt/int/sc_signed_bitref.inc b/src/systemc/dt/int/sc_signed_bitref.inc
new file mode 100644
index 000000000..c20301c68
--- /dev/null
+++ b/src/systemc/dt/int/sc_signed_bitref.inc
@@ -0,0 +1,163 @@
+/*****************************************************************************
+
+  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.
+
+ *****************************************************************************/
+
+/*****************************************************************************
+
+  sc_signed_bitref.h -- Proxy class that is declared in sc_signed.h.
+
+  Original Author: Ali Dasdan, Synopsys, Inc.
+
+ *****************************************************************************/
+
+/*****************************************************************************
+
+  MODIFICATION LOG - modifiers, enter your name, affiliation, date and
+  changes you are making here.
+
+      Name, Affiliation, Date:
+  Description of Modification:
+
+ *****************************************************************************/
+
+
+// ----------------------------------------------------------------------------
+//  CLASS : sc_signed_bitref_r
+//
+//  Proxy class for sc_signed bit selection (r-value only).
+// ----------------------------------------------------------------------------
+
+// implicit conversion to uint64
+
+sc_signed_bitref_r::operator uint64 () const
+{
+    return m_obj_p->test(m_index);
+}
+
+bool
+sc_signed_bitref_r::operator ! () const
+{
+    return (!m_obj_p->test(m_index));
+}
+
+bool
+sc_signed_bitref_r::operator ~ () const
+{
+    return (!m_obj_p->test(m_index));
+}
+
+
+// ----------------------------------------------------------------------------
+//  CLASS : sc_signed_bitref
+//
+//  Proxy class for sc_signed bit selection (r-value and l-value).
+// ----------------------------------------------------------------------------
+
+// assignment operators
+
+const sc_signed_bitref &
+sc_signed_bitref::operator = (const sc_signed_bitref_r &b)
+{
+    m_obj_p->set(m_index, (bool)b);
+    return *this;
+}
+
+const sc_signed_bitref &
+sc_signed_bitref::operator = (const sc_signed_bitref &b)
+{
+    m_obj_p->set(m_index, (bool)b);
+    return *this;
+}
+
+const sc_signed_bitref &
+sc_signed_bitref::operator = (bool b)
+{
+    m_obj_p->set(m_index, b);
+    return *this;
+}
+
+
+const sc_signed_bitref &
+sc_signed_bitref::operator &= (bool b)
+{
+    if (!b) {
+        m_obj_p->clear(m_index);
+    }
+    return *this;
+}
+
+const sc_signed_bitref &
+sc_signed_bitref::operator |= (bool b)
+{
+    if (b) {
+        m_obj_p->set(m_index);
+    }
+    return *this;
+}
+
+const sc_signed_bitref &
+sc_signed_bitref::operator ^= (bool b)
+{
+    if (b) {
+        m_obj_p->invert(m_index);
+    }
+    return *this;
+}
+
+// #### OPTIMIZE
+void
+sc_signed_bitref::concat_set(int64 src, int low_i)  
+{    
+    bool value = 1 & ((low_i < 64) ? (src >> low_i) : (src >> 63));
+    m_obj_p->set(low_i, value);
+}
+
+void
+sc_signed_bitref::concat_set(const sc_signed &src, int low_i)
+{
+    if (low_i < src.length())
+        m_obj_p->set(low_i, src.test(low_i));
+    else
+        m_obj_p->set(low_i, src < 0);
+}       
+
+void
+sc_signed_bitref::concat_set(const sc_unsigned &src, int low_i)
+{
+    if (low_i < src.length())
+        m_obj_p->set(low_i, src.test(low_i));
+    else
+        m_obj_p->set(low_i, 0);
+}
+
+void
+sc_signed_bitref::concat_set(uint64 src, int low_i)
+{
+    bool value = 1 & ((low_i < 64) ? (src >> low_i) : 0);
+    m_obj_p->set(low_i, value);
+}
+
+
+// other methods
+void
+sc_signed_bitref::scan(::std::istream &is)
+{
+    bool b;
+    is >> b;
+    *this = b;
+}