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-rw-r--r--src/systemc/tests/systemc/misc/examples/a2901/a2901_alu.cpp88
1 files changed, 88 insertions, 0 deletions
diff --git a/src/systemc/tests/systemc/misc/examples/a2901/a2901_alu.cpp b/src/systemc/tests/systemc/misc/examples/a2901/a2901_alu.cpp
new file mode 100644
index 000000000..b8862c63d
--- /dev/null
+++ b/src/systemc/tests/systemc/misc/examples/a2901/a2901_alu.cpp
@@ -0,0 +1,88 @@
+/*****************************************************************************
+
+ 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.
+
+ *****************************************************************************/
+
+/*****************************************************************************
+
+ a2901_alu.cpp --
+
+ Original Author: Martin Janssen, Synopsys, Inc., 2002-02-15
+
+ *****************************************************************************/
+
+/*****************************************************************************
+
+ MODIFICATION LOG - modifiers, enter your name, affiliation, date and
+ changes you are making here.
+
+ Name, Affiliation, Date:
+ Description of Modification:
+
+ *****************************************************************************/
+
+#include "a2901_alu.h"
+
+void
+a2901_alu::entry()
+{
+ int I53 = I.read().range(5,3);
+
+ R_ext_v = (I53 == 0x1) ? sc_int<5> (0xf & ~(RE.read()))
+ : sc_int<5>( RE.read() );
+ S_ext_v = (I53 == 0x2) ? sc_int<5> (0xf & ~(S.read()) )
+ : sc_int<5>( S.read() );
+ R_ext.write(R_ext_v);
+ S_ext.write(S_ext_v);
+
+ switch (I53) {
+ case 0x0:
+ case 0x1:
+ case 0x2:
+ result = R_ext_v + S_ext_v + C0.read();
+ break;
+ case 0x3:
+ result = R_ext_v | S_ext_v;
+ break;
+ case 0x4:
+ result = R_ext_v & S_ext_v;
+ break;
+ case 0x5:
+ result = ~(R_ext_v) & S_ext_v;
+ break;
+ case 0x6:
+ result = R_ext_v ^ S_ext_v;
+ break;
+ default:
+ result = ~(R_ext_v ^ S_ext_v);
+ }
+
+ F.write(result);
+ OVR.write(!(R_ext_v[3] ^ S_ext_v[3]) & (R_ext_v[3] ^ result[3]));
+ //C4.write(result[4]);
+ C4.write((bool)result[4]);
+ temp_p = R_ext_v | S_ext_v;
+ temp_g = R_ext_v & S_ext_v;
+ Pbar.write((temp_p[0] & temp_p[1] & temp_p[2] & temp_p[3]) ? 0 : 1);
+ Gbar.write((temp_g[3] |
+ (temp_p[3] & temp_g[2]) |
+ (temp_p[3] & temp_p[2] & temp_g[1]) |
+ (temp_p[3] & temp_p[2] & temp_p[1] & temp_g[0])) ? 0 : 1);
+ //F3.write(result[3]);
+ F3.write((bool)result[3]);
+ F30.write((result[3] | result[2] | result[1] | result[0]) ? 0 : 1);
+}