types.hh revision 2438 
1/*
2 * Copyright (c) 2003-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/**
30 * @file
31 * Defines host-dependent types:
32 * Counter, Tick, and (indirectly) {int,uint}{8,16,32,64}_t.
33 */
34
35#ifndef __HOST_HH__
36#define __HOST_HH__
37
38#include <inttypes.h>
39
40/** uint64_t constant */
41#define ULL(N)		((uint64_t)N##ULL)
42/** int64_t constant */
43#define LL(N)		(((int64_t)N##LL)
44
45/** Statistics counter type.  Not much excuse for not using a 64-bit
46 * integer here, but if you're desperate and only run short
47 * simulations you could make this 32 bits.
48 */
49typedef int64_t Counter;
50
51/**
52 * Clock cycle count type.
53 * @note using an unsigned breaks the cache.
54 */
55typedef int64_t Tick;
56
57/**
58 * Address type
59 * This will probably be moved somewhere else in the near future.
60 * This should be at least as big as the biggest address width in use
61 * in the system, which will probably be 64 bits.
62 */
63typedef uint64_t Addr;
64
65const Addr MaxAddr = (Addr)-1;
66
67#endif // __HOST_H__
68