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/*
* Copyright (c) 2011-2013,2017-2019 ARM Limited
* All rights reserved
*
* The license below extends only to copyright in the software and shall
* not be construed as granting a license to any other intellectual
* property including but not limited to intellectual property relating
* to a hardware implementation of the functionality of the software
* licensed hereunder. You may use the software subject to the license
* terms below provided that you ensure that this notice is replicated
* unmodified and in its entirety in all distributions of the software,
* modified or unmodified, in source code or in binary form.
*
* 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: Gabe Black
*/
#ifndef __ARCH_ARM_MEM64_HH__
#define __ARCH_ARM_MEM64_HH__
#include "arch/arm/insts/misc64.hh"
#include "arch/arm/insts/static_inst.hh"
namespace ArmISA
{
class SysDC64 : public MiscRegOp64
{
protected:
IntRegIndex base;
MiscRegIndex dest;
uint64_t imm;
// This is used for fault handling only
mutable Addr faultAddr;
SysDC64(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
IntRegIndex _base, MiscRegIndex _dest, uint64_t _imm)
: MiscRegOp64(mnem, _machInst, __opClass, false),
base(_base), dest(_dest), imm(_imm), faultAddr(0)
{}
std::string generateDisassembly(
Addr pc, const SymbolTable *symtab) const override;
};
class MightBeMicro64 : public ArmStaticInst
{
protected:
MightBeMicro64(const char *mnem, ExtMachInst _machInst, OpClass __opClass)
: ArmStaticInst(mnem, _machInst, __opClass)
{}
void
advancePC(PCState &pcState) const
{
if (flags[IsLastMicroop]) {
pcState.uEnd();
} else if (flags[IsMicroop]) {
pcState.uAdvance();
} else {
pcState.advance();
}
}
};
class Memory64 : public MightBeMicro64
{
public:
enum AddrMode {
AddrMd_Offset,
AddrMd_PreIndex,
AddrMd_PostIndex
};
protected:
IntRegIndex dest;
IntRegIndex base;
/// True if the base register is SP (used for SP alignment checking).
bool baseIsSP;
static const unsigned numMicroops = 3;
StaticInstPtr *uops;
Memory64(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
IntRegIndex _dest, IntRegIndex _base)
: MightBeMicro64(mnem, _machInst, __opClass),
dest(_dest), base(_base), uops(NULL), memAccessFlags(0)
{
baseIsSP = isSP(_base);
}
virtual
~Memory64()
{
delete [] uops;
}
StaticInstPtr
fetchMicroop(MicroPC microPC) const override
{
assert(uops != NULL && microPC < numMicroops);
return uops[microPC];
}
void startDisassembly(std::ostream &os) const;
unsigned memAccessFlags;
void setExcAcRel(bool exclusive, bool acrel);
};
class MemoryImm64 : public Memory64
{
protected:
int64_t imm;
MemoryImm64(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
IntRegIndex _dest, IntRegIndex _base, int64_t _imm)
: Memory64(mnem, _machInst, __opClass, _dest, _base), imm(_imm)
{}
std::string generateDisassembly(
Addr pc, const SymbolTable *symtab) const override;
};
class MemoryDImm64 : public MemoryImm64
{
protected:
IntRegIndex dest2;
MemoryDImm64(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
IntRegIndex _dest, IntRegIndex _dest2, IntRegIndex _base,
int64_t _imm)
: MemoryImm64(mnem, _machInst, __opClass, _dest, _base, _imm),
dest2(_dest2)
{}
std::string generateDisassembly(
Addr pc, const SymbolTable *symtab) const override;
};
class MemoryDImmEx64 : public MemoryDImm64
{
protected:
IntRegIndex result;
MemoryDImmEx64(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
IntRegIndex _result, IntRegIndex _dest, IntRegIndex _dest2,
IntRegIndex _base, int32_t _imm)
: MemoryDImm64(mnem, _machInst, __opClass, _dest, _dest2,
_base, _imm), result(_result)
{}
std::string generateDisassembly(
Addr pc, const SymbolTable *symtab) const override;
};
class MemoryPreIndex64 : public MemoryImm64
{
protected:
MemoryPreIndex64(const char *mnem, ExtMachInst _machInst,
OpClass __opClass, IntRegIndex _dest, IntRegIndex _base,
int64_t _imm)
: MemoryImm64(mnem, _machInst, __opClass, _dest, _base, _imm)
{}
std::string generateDisassembly(
Addr pc, const SymbolTable *symtab) const override;
};
class MemoryPostIndex64 : public MemoryImm64
{
protected:
MemoryPostIndex64(const char *mnem, ExtMachInst _machInst,
OpClass __opClass, IntRegIndex _dest, IntRegIndex _base,
int64_t _imm)
: MemoryImm64(mnem, _machInst, __opClass, _dest, _base, _imm)
{}
std::string generateDisassembly(
Addr pc, const SymbolTable *symtab) const override;
};
class MemoryReg64 : public Memory64
{
protected:
IntRegIndex offset;
ArmExtendType type;
uint64_t shiftAmt;
MemoryReg64(const char *mnem, ExtMachInst _machInst,
OpClass __opClass, IntRegIndex _dest, IntRegIndex _base,
IntRegIndex _offset, ArmExtendType _type,
uint64_t _shiftAmt)
: Memory64(mnem, _machInst, __opClass, _dest, _base),
offset(_offset), type(_type), shiftAmt(_shiftAmt)
{}
std::string generateDisassembly(
Addr pc, const SymbolTable *symtab) const override;
};
class MemoryRaw64 : public Memory64
{
protected:
MemoryRaw64(const char *mnem, ExtMachInst _machInst,
OpClass __opClass, IntRegIndex _dest, IntRegIndex _base)
: Memory64(mnem, _machInst, __opClass, _dest, _base)
{}
std::string generateDisassembly(
Addr pc, const SymbolTable *symtab) const override;
};
class MemoryEx64 : public Memory64
{
protected:
IntRegIndex result;
MemoryEx64(const char *mnem, ExtMachInst _machInst,
OpClass __opClass, IntRegIndex _dest, IntRegIndex _base,
IntRegIndex _result)
: Memory64(mnem, _machInst, __opClass, _dest, _base), result(_result)
{}
std::string generateDisassembly(
Addr pc, const SymbolTable *symtab) const override;
};
class MemoryLiteral64 : public Memory64
{
protected:
int64_t imm;
MemoryLiteral64(const char *mnem, ExtMachInst _machInst,
OpClass __opClass, IntRegIndex _dest, int64_t _imm)
: Memory64(mnem, _machInst, __opClass, _dest, INTREG_ZERO), imm(_imm)
{}
std::string generateDisassembly(
Addr pc, const SymbolTable *symtab) const override;
};
}
#endif //__ARCH_ARM_INSTS_MEM_HH__
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