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Diffstat (limited to 'cpu/o3/alpha_dyn_inst.hh')
| -rw-r--r-- | cpu/o3/alpha_dyn_inst.hh | 268 |
1 files changed, 0 insertions, 268 deletions
diff --git a/cpu/o3/alpha_dyn_inst.hh b/cpu/o3/alpha_dyn_inst.hh deleted file mode 100644 index 1c5b738aa..000000000 --- a/cpu/o3/alpha_dyn_inst.hh +++ /dev/null @@ -1,268 +0,0 @@ -/* - * Copyright (c) 2004-2006 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 __CPU_O3_ALPHA_DYN_INST_HH__ -#define __CPU_O3_ALPHA_DYN_INST_HH__ - -#include "cpu/base_dyn_inst.hh" -#include "cpu/inst_seq.hh" -#include "cpu/o3/alpha_cpu.hh" -#include "cpu/o3/alpha_impl.hh" - -/** - * Mostly implementation & ISA specific AlphaDynInst. As with most - * other classes in the new CPU model, it is templated on the Impl to - * allow for passing in of all types, such as the CPU type and the ISA - * type. The AlphaDynInst serves as the primary interface to the CPU - * for instructions that are executing. - */ -template <class Impl> -class AlphaDynInst : public BaseDynInst<Impl> -{ - public: - /** Typedef for the CPU. */ - typedef typename Impl::FullCPU FullCPU; - - /** Binary machine instruction type. */ - typedef TheISA::MachInst MachInst; - /** Extended machine instruction type. */ - typedef TheISA::ExtMachInst ExtMachInst; - /** Logical register index type. */ - typedef TheISA::RegIndex RegIndex; - /** Integer register index type. */ - typedef TheISA::IntReg IntReg; - /** Misc register index type. */ - typedef TheISA::MiscReg MiscReg; - - enum { - MaxInstSrcRegs = TheISA::MaxInstSrcRegs, //< Max source regs - MaxInstDestRegs = TheISA::MaxInstDestRegs, //< Max dest regs - }; - - public: - /** BaseDynInst constructor given a binary instruction. */ - AlphaDynInst(ExtMachInst inst, Addr PC, Addr Pred_PC, InstSeqNum seq_num, - FullCPU *cpu); - - /** BaseDynInst constructor given a static inst pointer. */ - AlphaDynInst(StaticInstPtr &_staticInst); - - /** Executes the instruction.*/ - Fault execute(); - - /** Initiates the access. Only valid for memory operations. */ - Fault initiateAcc(); - - /** Completes the access. Only valid for memory operations. */ - Fault completeAcc(); - - private: - /** Initializes variables. */ - void initVars(); - - public: - MiscReg readMiscReg(int misc_reg) - { - return this->cpu->readMiscReg(misc_reg, this->threadNumber); - } - - MiscReg readMiscRegWithEffect(int misc_reg, Fault &fault) - { - return this->cpu->readMiscRegWithEffect(misc_reg, fault, - this->threadNumber); - } - - Fault setMiscReg(int misc_reg, const MiscReg &val) - { - this->instResult.integer = val; - return this->cpu->setMiscReg(misc_reg, val, this->threadNumber); - } - - Fault setMiscRegWithEffect(int misc_reg, const MiscReg &val) - { - return this->cpu->setMiscRegWithEffect(misc_reg, val, - this->threadNumber); - } - -#if FULL_SYSTEM - /** Calls hardware return from error interrupt. */ - Fault hwrei(); - /** Reads interrupt flag. */ - int readIntrFlag(); - /** Sets interrupt flag. */ - void setIntrFlag(int val); - /** Checks if system is in PAL mode. */ - bool inPalMode(); - /** Traps to handle specified fault. */ - void trap(Fault fault); - bool simPalCheck(int palFunc); -#else - /** Calls a syscall. */ - void syscall(); -#endif - - private: - /** Physical register index of the destination registers of this - * instruction. - */ - PhysRegIndex _destRegIdx[MaxInstDestRegs]; - - /** Physical register index of the source registers of this - * instruction. - */ - PhysRegIndex _srcRegIdx[MaxInstSrcRegs]; - - /** Physical register index of the previous producers of the - * architected destinations. - */ - PhysRegIndex _prevDestRegIdx[MaxInstDestRegs]; - - public: - - // The register accessor methods provide the index of the - // instruction's operand (e.g., 0 or 1), not the architectural - // register index, to simplify the implementation of register - // renaming. We find the architectural register index by indexing - // into the instruction's own operand index table. Note that a - // raw pointer to the StaticInst is provided instead of a - // ref-counted StaticInstPtr to redice overhead. This is fine as - // long as these methods don't copy the pointer into any long-term - // storage (which is pretty hard to imagine they would have reason - // to do). - - uint64_t readIntReg(const StaticInst *si, int idx) - { - return this->cpu->readIntReg(_srcRegIdx[idx]); - } - - float readFloatRegSingle(const StaticInst *si, int idx) - { - return this->cpu->readFloatRegSingle(_srcRegIdx[idx]); - } - - double readFloatRegDouble(const StaticInst *si, int idx) - { - return this->cpu->readFloatRegDouble(_srcRegIdx[idx]); - } - - uint64_t readFloatRegInt(const StaticInst *si, int idx) - { - return this->cpu->readFloatRegInt(_srcRegIdx[idx]); - } - - /** @todo: Make results into arrays so they can handle multiple dest - * registers. - */ - void setIntReg(const StaticInst *si, int idx, uint64_t val) - { - this->cpu->setIntReg(_destRegIdx[idx], val); - BaseDynInst<Impl>::setIntReg(si, idx, val); - } - - void setFloatRegSingle(const StaticInst *si, int idx, float val) - { - this->cpu->setFloatRegSingle(_destRegIdx[idx], val); - BaseDynInst<Impl>::setFloatRegSingle(si, idx, val); - } - - void setFloatRegDouble(const StaticInst *si, int idx, double val) - { - this->cpu->setFloatRegDouble(_destRegIdx[idx], val); - BaseDynInst<Impl>::setFloatRegDouble(si, idx, val); - } - - void setFloatRegInt(const StaticInst *si, int idx, uint64_t val) - { - this->cpu->setFloatRegInt(_destRegIdx[idx], val); - BaseDynInst<Impl>::setFloatRegInt(si, idx, val); - } - - /** Returns the physical register index of the i'th destination - * register. - */ - PhysRegIndex renamedDestRegIdx(int idx) const - { - return _destRegIdx[idx]; - } - - /** Returns the physical register index of the i'th source register. */ - PhysRegIndex renamedSrcRegIdx(int idx) const - { - return _srcRegIdx[idx]; - } - - /** Returns the physical register index of the previous physical register - * that remapped to the same logical register index. - */ - PhysRegIndex prevDestRegIdx(int idx) const - { - return _prevDestRegIdx[idx]; - } - - /** Renames a destination register to a physical register. Also records - * the previous physical register that the logical register mapped to. - */ - void renameDestReg(int idx, - PhysRegIndex renamed_dest, - PhysRegIndex previous_rename) - { - _destRegIdx[idx] = renamed_dest; - _prevDestRegIdx[idx] = previous_rename; - } - - /** Renames a source logical register to the physical register which - * has/will produce that logical register's result. - * @todo: add in whether or not the source register is ready. - */ - void renameSrcReg(int idx, PhysRegIndex renamed_src) - { - _srcRegIdx[idx] = renamed_src; - } - - public: - /** Calculates EA part of a memory instruction. Currently unused, - * though it may be useful in the future if we want to split - * memory operations into EA calculation and memory access parts. - */ - Fault calcEA() - { - return this->staticInst->eaCompInst()->execute(this, this->traceData); - } - - /** Does the memory access part of a memory instruction. Currently unused, - * though it may be useful in the future if we want to split - * memory operations into EA calculation and memory access parts. - */ - Fault memAccess() - { - return this->staticInst->memAccInst()->execute(this, this->traceData); - } -}; - -#endif // __CPU_O3_ALPHA_DYN_INST_HH__ - |