gem5/arch/alpha/arguments.hh
Nathan Binkert 60a7bd950b CopyData and CopyString moved from kernel.cc to vtophys.cc
kernel.cc and kernel.hh moved to kern/tru64

--HG--
extra : convert_revision : 1b9123af03960b602a2d52dfa7b714280f9995aa
2003-10-13 16:09:33 -04:00

144 lines
3.9 KiB
C++

/*
* Copyright (c) 2003 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __ARGUMENTS_HH__
#define __ARGUMENTS_HH__
#include <assert.h>
#include "sim/host.hh"
#include "kern/tru64/kernel.hh"
#include "base/refcnt.hh"
#include "targetarch/vtophys.hh"
class ExecContext;
class AlphaArguments
{
protected:
ExecContext *xc;
int number;
uint64_t getArg(bool fp = false);
protected:
class Data : public RefCounted
{
public:
Data(){}
~Data();
private:
std::list<char *> data;
public:
char *alloc(size_t size);
};
RefCountingPtr<Data> data;
public:
AlphaArguments(ExecContext *ctx, int n = 0)
: xc(ctx), number(n), data(NULL)
{ assert(number >= 0); data = new Data;}
AlphaArguments(const AlphaArguments &args)
: xc(args.xc), number(args.number), data(args.data) {}
~AlphaArguments() {}
ExecContext *getExecContext() const { return xc; }
const AlphaArguments &operator=(const AlphaArguments &args) {
xc = args.xc;
number = args.number;
data = args.data;
return *this;
}
AlphaArguments &operator++() {
++number;
assert(number >= 0);
return *this;
}
AlphaArguments operator++(int) {
AlphaArguments args = *this;
++number;
assert(number >= 0);
return args;
}
AlphaArguments &operator--() {
--number;
assert(number >= 0);
return *this;
}
AlphaArguments operator--(int) {
AlphaArguments args = *this;
--number;
assert(number >= 0);
return args;
}
const AlphaArguments &operator+=(int index) {
number += index;
assert(number >= 0);
return *this;
}
const AlphaArguments &operator-=(int index) {
number -= index;
assert(number >= 0);
return *this;
}
AlphaArguments operator[](int index) {
return AlphaArguments(xc, index);
}
template <class T>
operator T() {
assert(sizeof(T) <= sizeof(uint64_t));
T data = static_cast<T>(getArg());
return data;
}
template <class T>
operator T *() {
T *buf = (T *)data->alloc(sizeof(T));
CopyData(xc, buf, getArg(), sizeof(T));
return buf;
}
operator char *() {
char *buf = data->alloc(2048);
CopyString(xc, buf, getArg(), 2048);
return buf;
}
};
#endif // __ARGUMENTS_HH__