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-/*
- * 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.
- *
- * Authors: Steve Reinhardt
- * Gabe Black
- */
-
-#ifndef __ARCH_ALPHA_MISCREGFILE_HH__
-#define __ARCH_ALPHA_MISCREGFILE_HH__
-
-#include <iosfwd>
-
-#include "arch/alpha/registers.hh"
-#include "arch/alpha/types.hh"
-#include "base/types.hh"
-#include "sim/serialize.hh"
-
-class Checkpoint;
-class ThreadContext;
-class BaseCPU;
-
-namespace AlphaISA {
-
-class MiscRegFile
-{
- public:
- typedef uint64_t InternalProcReg;
-
- protected:
- uint64_t fpcr; // floating point condition codes
- uint64_t uniq; // process-unique register
- bool lock_flag; // lock flag for LL/SC
- Addr lock_addr; // lock address for LL/SC
- int intr_flag;
-
- InternalProcReg ipr[NumInternalProcRegs]; // Internal processor regs
-
- BaseCPU *cpu;
-
- protected:
- InternalProcReg readIpr(int idx, ThreadContext *tc);
- void setIpr(int idx, InternalProcReg val, ThreadContext *tc);
-
- public:
- MiscRegFile()
- {
- initializeIprTable();
- }
-
- MiscRegFile(BaseCPU *cpu);
-
- // These functions should be removed once the simplescalar cpu
- // model has been replaced.
- int getInstAsid();
- int getDataAsid();
-
- MiscReg readRegNoEffect(int misc_reg, ThreadID tid = 0);
- MiscReg readReg(int misc_reg, ThreadContext *tc, ThreadID tid = 0);
-
- void setRegNoEffect(int misc_reg, const MiscReg &val, ThreadID tid = 0);
- void setReg(int misc_reg, const MiscReg &val, ThreadContext *tc,
- ThreadID tid = 0);
-
- void
- clear()
- {
- fpcr = 0;
- uniq = 0;
- lock_flag = 0;
- lock_addr = 0;
- intr_flag = 0;
- }
-
- void serialize(std::ostream &os);
- void unserialize(Checkpoint *cp, const std::string &section);
-
- void reset(std::string core_name, ThreadID num_threads,
- unsigned num_vpes, BaseCPU *_cpu)
- { }
-
-
- void expandForMultithreading(ThreadID num_threads, unsigned num_vpes)
- { }
-
-
-};
-
-void copyIprs(ThreadContext *src, ThreadContext *dest);
-
-} // namespace AlphaISA
-
-#endif // __ARCH_ALPHA_MISCREGFILE_HH__