a4b31e8f6b
arch/alpha/isa_traits.hh:
arch/mips/isa_traits.cc:
Turned the integer register file into a class instead of a typedef to an array.
arch/alpha/regfile.hh:
Changed the integer register file into a class instead of a typedef to an array. Also put the parts of the register file, ie the int, float, and misc register files, pc, npc, and nnpc, behind accessor functions. Added a changeContext function, and ContextParam and ContextVal types, so that things like the register window can be changed through call backs.
arch/mips/isa_traits.hh:
Turned the integer register file into a class instead of a typedef to an array. Also moved a "using namespace" into the namespace definition.
arch/sparc/isa_traits.hh:
Turned the integer register file into a class instead of a typedef to an array. Also "fixed" the max number of src and dest regs. They may need to be even larger.
arch/sparc/regfile.hh:
Changed the integer register file into a class instead of a typedef to an array. Also put the parts of the register file, ie the int, float, and misc register files, pc, npc, and nnpc, behind accessor functions. Added a changeContext function, and ContextParam and ContextVal types, so that things like the register window can be changed through call backs. Created setCWP and setAltGlobals functions for the IntRegFile.
cpu/cpu_exec_context.hh:
Used the accessor functions for the register file, and added a changeRegFileContext function to call back into the RegFile. Used the RegFile clear function rather than memsetting it to 0.
cpu/exec_context.hh:
Added the changeRegFileContext function.
cpu/exetrace.cc:
Use the TheISA::NumIntRegs constant, and use readReg now that the integer register file is a class instead of an array.
cpu/exetrace.hh:
Get the address of the regs object, now that it isn't an array.
--HG--
extra : convert_revision : ea2dd81be1c2e66b3c684af319eb58f8a77fd49c
113 lines
3.6 KiB
C++
113 lines
3.6 KiB
C++
/*
|
|
* Copyright (c) 2003-2005 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 __ARCH_ALPHA_ISA_TRAITS_HH__
|
|
#define __ARCH_ALPHA_ISA_TRAITS_HH__
|
|
|
|
namespace LittleEndianGuest {}
|
|
|
|
#include "arch/alpha/types.hh"
|
|
#include "arch/alpha/constants.hh"
|
|
#include "arch/alpha/regfile.hh"
|
|
#include "config/full_system.hh"
|
|
#include "sim/host.hh"
|
|
|
|
class StaticInstPtr;
|
|
|
|
#if !FULL_SYSTEM
|
|
class SyscallReturn {
|
|
public:
|
|
template <class T>
|
|
SyscallReturn(T v, bool s)
|
|
{
|
|
retval = (uint64_t)v;
|
|
success = s;
|
|
}
|
|
|
|
template <class T>
|
|
SyscallReturn(T v)
|
|
{
|
|
success = (v >= 0);
|
|
retval = (uint64_t)v;
|
|
}
|
|
|
|
~SyscallReturn() {}
|
|
|
|
SyscallReturn& operator=(const SyscallReturn& s) {
|
|
retval = s.retval;
|
|
success = s.success;
|
|
return *this;
|
|
}
|
|
|
|
bool successful() { return success; }
|
|
uint64_t value() { return retval; }
|
|
|
|
|
|
private:
|
|
uint64_t retval;
|
|
bool success;
|
|
};
|
|
|
|
#endif
|
|
|
|
#if FULL_SYSTEM
|
|
#include "arch/alpha/isa_fullsys_traits.hh"
|
|
#endif
|
|
|
|
|
|
namespace AlphaISA
|
|
{
|
|
|
|
using namespace LittleEndianGuest;
|
|
|
|
// redirected register map, really only used for the full system case.
|
|
extern const int reg_redir[NumIntRegs];
|
|
|
|
StaticInstPtr decodeInst(ExtMachInst);
|
|
|
|
#if !FULL_SYSTEM
|
|
static inline void setSyscallReturn(SyscallReturn return_value, RegFile *regs)
|
|
{
|
|
// check for error condition. Alpha syscall convention is to
|
|
// indicate success/failure in reg a3 (r19) and put the
|
|
// return value itself in the standard return value reg (v0).
|
|
if (return_value.successful()) {
|
|
// no error
|
|
regs->setIntReg(SyscallSuccessReg, 0);
|
|
regs->setIntReg(ReturnValueReg, return_value.value());
|
|
} else {
|
|
// got an error, return details
|
|
regs->setIntReg(SyscallSuccessReg, (IntReg)-1);
|
|
regs->setIntReg(ReturnValueReg, -return_value.value());
|
|
}
|
|
}
|
|
#endif
|
|
};
|
|
|
|
#endif // __ARCH_ALPHA_ISA_TRAITS_HH__
|