divide.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  divide.cpp --
23
24  Original Author: Rocco Jonack, Synopsys, Inc., 1999-05-13
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
39#include "divide.h"
40
41void divide::entry(){
42
43  int             tmp1;
44  sc_bigint<4>    tmp2;
45  sc_biguint<4>   tmp3;
46  sc_bigint<8>    tmp4;
47  sc_biguint<8>   tmp5;
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
70    //execute operations
71    tmp1 = tmp1/2;
72    tmp2 = tmp2/2;
73    tmp3 = tmp3/2;
74    tmp4 = tmp4/2;
75    tmp5 = tmp5/2;
76    wait();
77
78    // write outputs
79    out_value1.write(tmp1);
80    out_value2.write(tmp2);
81    out_value3.write(tmp3);
82    out_value4.write(tmp4);
83    out_value5.write(tmp5);
84    out_valid.write(true);
85    wait();
86    out_valid.write(false);
87    wait();
88    //execute slf assigning operations
89    tmp1 /= 3;
90    tmp2 /= 3;
91    tmp3 /= 3;
92    tmp4 /= 3;
93    tmp5 /= 3;
94    wait();
95
96    // write outputs
97    out_value1.write(tmp1);
98    out_value3.write(tmp3);
99    out_value4.write(tmp4);
100    out_value5.write(tmp5);
101    out_valid.write(true);
102    wait();
103    out_valid.write(false);
104    wait();
105    //execute self assigning operations
106    if (tmp3!=0)
107       tmp1 = (tmp2/tmp3).to_int();
108    if (tmp4!=0)
109       tmp2 = tmp2/tmp4;
110    if (tmp5!=0)
111       tmp3 = tmp3/tmp5;
112    if (tmp5!=0)
113       tmp4 = tmp4/tmp5;
114    wait();
115
116    // write outputs
117    out_value1.write(tmp1);
118    out_value3.write(tmp3);
119    out_value4.write(tmp4);
120    out_value5.write(tmp5);
121    out_valid.write(true);
122    wait();
123    out_valid.write(false);
124    wait();
125  }
126}
127
128// EOF
129
130