pr-207_rf.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  pr-207_rf.cpp --
23
24  Original Author: Martin Janssen, Synopsys, Inc., 2002-02-15
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 "systemc.h"
39
40struct my_pair {
41    char x;
42    char y;
43};
44
45typedef sc_signal<bool>          sig_bool;
46typedef sc_signal<char>          sig_char;
47typedef sc_signal<unsigned char> sig_uchar;
48
49SC_MODULE( pr207 )
50{
51    SC_HAS_PROCESS( pr207 );
52
53    sc_in_clk clk;
54
55    pr207(sc_module_name NAME,
56          sc_clock& CLK,
57
58          const sig_bool& RESET,
59          const sig_bool& START,
60          const sig_char& C1,
61          const sig_char& C2,
62          const sig_uchar& IDX1,
63          const sig_uchar& IDX2,
64                sig_char& D1,
65                sig_char& D2,
66                sig_bool& READY
67          )
68        :
69          reset(RESET),
70          start(START),
71          c1(C1),
72          c2(C2),
73          idx1(IDX1),
74          idx2(IDX2),
75          d1(D1),
76          d2(D2),
77          ready(READY)
78    {
79        clk(CLK);
80		SC_CTHREAD( entry, clk.pos() );
81        reset_signal_is(reset,true);
82    }
83    void entry();
84
85    const sig_bool& reset;
86    const sig_bool& start;
87    const sig_char& c1;
88    const sig_char& c2;
89    const sig_uchar& idx1;
90    const sig_uchar& idx2;
91          sig_char& d1;
92          sig_char& d2;
93          sig_bool& ready;
94
95};
96
97void
98pr207::entry()
99{
100    my_pair pair_array[10];
101
102    ready = true;
103    d1 = 0;
104    d2 = 0;
105    wait();
106    while (true) {
107        do { wait(); } while (start == 0);
108        ready = false;
109        wait();
110        pair_array[idx1.read()].x = c1;
111        pair_array[idx1.read()].y = c2;
112        wait();
113        pair_array[idx2.read()] = pair_array[idx1.read()];
114        wait();
115        char d1_tmp = pair_array[idx2.read()].y;
116        wait();
117        char d2_tmp = pair_array[idx2.read()].x;
118        wait();
119        d1 = d1_tmp;
120        d2 = d2_tmp;
121        ready = true;
122    }
123}
124
125int sc_main(int argc, char* argv[] )
126{
127  return 0;
128}
129
130