Project

General

Profile

Download (1.9 KB) Statistics
| Branch: | Tag: | Revision:
1

    
2
-- Copyright (C) 1996 Morgan Kaufmann Publishers, Inc
3

    
4
-- This file is part of VESTs (Vhdl tESTs).
5

    
6
-- VESTs is free software; you can redistribute it and/or modify it
7
-- under the terms of the GNU General Public License as published by the
8
-- Free Software Foundation; either version 2 of the License, or (at
9
-- your option) any later version. 
10

    
11
-- VESTs is distributed in the hope that it will be useful, but WITHOUT
12
-- ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13
-- FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14
-- for more details. 
15

    
16
-- You should have received a copy of the GNU General Public License
17
-- along with VESTs; if not, write to the Free Software Foundation,
18
-- Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
19

    
20
-- ---------------------------------------------------------------------
21
--
22
-- $Id: ch_17_fg_17_09.vhd,v 1.2 2001-10-26 16:29:36 paw Exp $
23
-- $Revision: 1.2 $
24
--
25
-- ---------------------------------------------------------------------
26

    
27
entity fg_17_09 is
28
end entity fg_17_09;
29

    
30

    
31

    
32
architecture test of fg_17_09 is
33
begin
34

    
35
  -- code from book
36

    
37
  receiver : process is
38

    
39
                       use work.bounded_buffer_adt.all;
40

    
41
                     variable receive_buffer : bounded_buffer := new_bounded_buffer(2048);
42
                     variable buffer_overrun, buffer_underrun : boolean;
43
                     -- . . .
44

    
45
                     -- not in book
46
                     variable received_byte, check_byte : byte;
47
                     -- end not in book
48

    
49
  begin
50
    -- . . .
51

    
52
    test_full(receive_buffer, buffer_overrun);
53
    if not buffer_overrun then
54
      write(receive_buffer, received_byte);
55
    end if;
56
    -- . . .
57

    
58
    test_empty(receive_buffer, buffer_underrun);
59
    if not buffer_underrun then
60
      read(receive_buffer, check_byte);
61
    end if;
62
    -- . . .
63

    
64
  end process receiver;
65

    
66
  -- end code from book
67

    
68
end architecture test;
69

    
(230-230/267)