arguments.cc revision 2107 
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#include "arch/alpha/arguments.hh"
30#include "arch/alpha/vtophys.hh"
31#include "cpu/exec_context.hh"
32#include "mem/functional/physical.hh"
33
34using namespace AlphaISA;
35
36AlphaArguments::Data::~Data()
37{
38    while (!data.empty()) {
39        delete [] data.front();
40        data.pop_front();
41    }
42}
43
44char *
45AlphaArguments::Data::alloc(size_t size)
46{
47    char *buf = new char[size];
48    data.push_back(buf);
49    return buf;
50}
51
52uint64_t
53AlphaArguments::getArg(bool fp)
54{
55    if (number < 6) {
56        if (fp)
57            return xc->regs.floatRegFile.q[16 + number];
58        else
59            return xc->regs.intRegFile[16 + number];
60    } else {
61        Addr sp = xc->regs.intRegFile[30];
62        Addr paddr = vtophys(xc, sp + (number-6) * sizeof(uint64_t));
63        return xc->physmem->phys_read_qword(paddr);
64    }
65}
66
67