bitwidth.cpp revision 12855:588919e0e4aa 
1/*****************************************************************************
2
3  Licensed to Accellera Systems Initiative Inc. (Accellera) under one or
4  more contributor license agreements.  See the NOTICE file distributed
5  with this work for additional information regarding copyright ownership.
6  Accellera licenses this file to you under the Apache License, Version 2.0
7  (the "License"); you may not use this file except in compliance with the
8  License.  You may obtain a copy of the License at
9
10    http://www.apache.org/licenses/LICENSE-2.0
11
12  Unless required by applicable law or agreed to in writing, software
13  distributed under the License is distributed on an "AS IS" BASIS,
14  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
15  implied.  See the License for the specific language governing
16  permissions and limitations under the License.
17
18 *****************************************************************************/
19
20/*****************************************************************************
21
22  bitwidth.cpp --
23
24  Original Author: Rocco Jonack, Synopsys, Inc., 1999-08-02
25
26 *****************************************************************************/
27
28/*****************************************************************************
29
30  MODIFICATION LOG - modifiers, enter your name, affiliation, date and
31  changes you are making here.
32
33      Name, Affiliation, Date:
34  Description of Modification:
35
36 *****************************************************************************/
37
38#include "bitwidth.h"
39
40void bitwidth::entry(){
41
42  sc_bigint<4>    tmp1;
43  sc_biguint<4>   tmp2;
44  sc_bigint<6>    tmp3;
45  sc_biguint<6>   tmp4;
46  sc_bigint<8>    tmp5;
47  sc_biguint<8>   tmp6;
48
49  // reset_loop
50  if (reset.read() == true) {
51    out_valid.write(false);
52    wait();
53  } else wait();
54
55  //
56  // main loop
57  //
58  //
59  while(1) {
60    while(in_valid.read()==false) wait();
61    wait();
62
63    //reading the inputs
64    tmp1 = in_value1.read();
65    tmp2 = in_value2.read();
66    tmp3 = in_value3.read();
67    tmp4 = in_value4.read();
68    tmp5 = in_value5.read();
69    tmp6 = in_value6.read();
70
71    //execute simple operations
72    // expected bitwidth 4 4 4 signed
73    tmp1 = tmp1 + tmp2;
74    // expected bitwidth 4 6 6 signed
75    tmp3 = tmp1 + tmp3;
76    // expected bitwidth 4 4 6 signed
77    tmp6 = tmp2 + tmp1;
78    // expected bitwidth 8 8 6 signed
79    tmp4 = tmp5 + tmp6;
80    // expected bitwidth 6 8 4 unsigned
81    tmp2 = tmp4 + tmp6;
82    wait();
83
84    // write outputs
85    out_value1.write(tmp1);
86    out_value2.write(tmp2);
87    out_value3.write(tmp3);
88    out_value4.write(tmp4);
89    out_value5.write(tmp5);
90    out_value6.write(tmp6);
91    out_valid.write(true);
92    wait();
93    out_valid.write(false);
94    wait();
95  }
96}
97
98// EOF
99
100