gem5  v20.1.0.0
Protected Member Functions | Protected Attributes | List of all members
X86ISA::RegOpBase Class Reference

Base classes for RegOps which provides a generateDisassembly method. More...

#include <microregop.hh>

Inheritance diagram for X86ISA::RegOpBase:
X86ISA::X86MicroopBase X86ISA::X86StaticInst StaticInst RefCounted X86ISA::RegOp X86ISA::RegOpImm

Protected Member Functions

 RegOpBase (ExtMachInst _machInst, const char *mnem, const char *_instMnem, uint64_t setFlags, InstRegIndex _src1, InstRegIndex _dest, uint8_t _dataSize, uint16_t _ext, OpClass __opClass)
uint64_t genFlags (uint64_t oldFlags, uint64_t flagMask, uint64_t _dest, uint64_t _src1, uint64_t _src2, bool subtract=false) const
- Protected Member Functions inherited from X86ISA::X86MicroopBase
 X86MicroopBase (ExtMachInst _machInst, const char *mnem, const char *_instMnem, uint64_t setFlags, OpClass __opClass)
std::string generateDisassembly (Addr pc, const Loader::SymbolTable *symtab) const override
 Internal function to generate disassembly string. More...
bool checkCondition (uint64_t flags, int condition) const
void advancePC (PCState &pcState) const override
- Protected Member Functions inherited from X86ISA::X86StaticInst
 X86StaticInst (const char *mnem, ExtMachInst _machInst, OpClass __opClass)
std::string generateDisassembly (Addr pc, const Loader::SymbolTable *symtab) const override
 Internal function to generate disassembly string. More...
void printMnemonic (std::ostream &os, const char *mnemonic) const
void printMnemonic (std::ostream &os, const char *instMnemonic, const char *mnemonic) const
void printSegment (std::ostream &os, int segment) const
void printReg (std::ostream &os, RegId reg, int size) const
void printSrcReg (std::ostream &os, int reg, int size) const
void printDestReg (std::ostream &os, int reg, int size) const
void printMem (std::ostream &os, uint8_t segment, uint8_t scale, RegIndex index, RegIndex base, uint64_t disp, uint8_t addressSize, bool rip) const
uint64_t merge (uint64_t into, uint64_t val, int size) const
uint64_t pick (uint64_t from, int idx, int size) const
int64_t signedPick (uint64_t from, int idx, int size) const
void advancePC (PCState &pcState) const override
- Protected Member Functions inherited from StaticInst
 StaticInst (const char *_mnemonic, ExtMachInst _machInst, OpClass __opClass)
 Constructor. More...
template<typename T >
size_t simpleAsBytes (void *buf, size_t max_size, const T &t)

Protected Attributes

const RegIndex src1
const RegIndex dest
const uint8_t dataSize
const uint16_t ext
RegIndex foldOBit
- Protected Attributes inherited from X86ISA::X86MicroopBase
const char * instMnem
uint8_t opSize
uint8_t addrSize
- Protected Attributes inherited from StaticInst
std::bitset< Num_Flags > flags
 Flag values for this instruction. More...
OpClass _opClass
 See opClass(). More...
int8_t _numSrcRegs
 See numSrcRegs(). More...
int8_t _numDestRegs
 See numDestRegs(). More...
int8_t _numFPDestRegs
 The following are used to track physical register usage for machines with separate int & FP reg files. More...
int8_t _numIntDestRegs
int8_t _numCCDestRegs
int8_t _numVecDestRegs
 To use in architectures with vector register file. More...
int8_t _numVecElemDestRegs
int8_t _numVecPredDestRegs
RegId _destRegIdx [MaxInstDestRegs]
 See destRegIdx(). More...
RegId _srcRegIdx [MaxInstSrcRegs]
 See srcRegIdx(). More...
const char * mnemonic
 Base mnemonic (e.g., "add"). More...
std::string * cachedDisassembly
 String representation of disassembly (lazily evaluated via disassemble()). More...

Additional Inherited Members

- Public Types inherited from StaticInst
enum  { MaxInstSrcRegs = TheISA::MaxInstSrcRegs, MaxInstDestRegs = TheISA::MaxInstDestRegs }
typedef TheISA::ExtMachInst ExtMachInst
 Binary extended machine instruction type. More...
- Public Member Functions inherited from StaticInst
int8_t numSrcRegs () const
 Number of source registers. More...
int8_t numDestRegs () const
 Number of destination registers. More...
int8_t numFPDestRegs () const
 Number of floating-point destination regs. More...
int8_t numIntDestRegs () const
 Number of integer destination regs. More...
int8_t numVecDestRegs () const
 Number of vector destination regs. More...
int8_t numVecElemDestRegs () const
 Number of vector element destination regs. More...
int8_t numVecPredDestRegs () const
 Number of predicate destination regs. More...
int8_t numCCDestRegs () const
 Number of coprocesor destination regs. More...
bool isNop () const
bool isMemRef () const
bool isLoad () const
bool isStore () const
bool isAtomic () const
bool isStoreConditional () const
bool isInstPrefetch () const
bool isDataPrefetch () const
bool isPrefetch () const
bool isInteger () const
bool isFloating () const
bool isVector () const
bool isCC () const
bool isControl () const
bool isCall () const
bool isReturn () const
bool isDirectCtrl () const
bool isIndirectCtrl () const
bool isCondCtrl () const
bool isUncondCtrl () const
bool isCondDelaySlot () const
bool isThreadSync () const
bool isSerializing () const
bool isSerializeBefore () const
bool isSerializeAfter () const
bool isSquashAfter () const
bool isMemBarrier () const
bool isWriteBarrier () const
bool isNonSpeculative () const
bool isQuiesce () const
bool isIprAccess () const
bool isUnverifiable () const
bool isSyscall () const
bool isMacroop () const
bool isMicroop () const
bool isDelayedCommit () const
bool isLastMicroop () const
bool isFirstMicroop () const
bool isMicroBranch () const
bool isHtmStart () const
bool isHtmStop () const
bool isHtmCancel () const
bool isHtmCmd () const
void setFirstMicroop ()
void setLastMicroop ()
void setDelayedCommit ()
void setFlag (Flags f)
OpClass opClass () const
 Operation class. Used to select appropriate function unit in issue. More...
const RegIddestRegIdx (int i) const
 Return logical index (architectural reg num) of i'th destination reg. More...
const RegIdsrcRegIdx (int i) const
 Return logical index (architectural reg num) of i'th source reg. More...
virtual ~StaticInst ()
virtual Fault execute (ExecContext *xc, Trace::InstRecord *traceData) const =0
virtual Fault initiateAcc (ExecContext *xc, Trace::InstRecord *traceData) const
virtual Fault completeAcc (Packet *pkt, ExecContext *xc, Trace::InstRecord *traceData) const
virtual void advancePC (TheISA::PCState &pcState) const =0
virtual StaticInstPtr fetchMicroop (MicroPC upc) const
 Return the microop that goes with a particular micropc. More...
virtual TheISA::PCState branchTarget (const TheISA::PCState &pc) const
 Return the target address for a PC-relative branch. More...
virtual TheISA::PCState branchTarget (ThreadContext *tc) const
 Return the target address for an indirect branch (jump). More...
bool hasBranchTarget (const TheISA::PCState &pc, ThreadContext *tc, TheISA::PCState &tgt) const
 Return true if the instruction is a control transfer, and if so, return the target address as well. More...
virtual const std::string & disassemble (Addr pc, const Loader::SymbolTable *symtab=nullptr) const
 Return string representation of disassembled instruction. More...
void printFlags (std::ostream &outs, const std::string &separator) const
 Print a separator separated list of this instruction's set flag names on the given stream. More...
std::string getName ()
 Return name of machine instruction. More...
virtual size_t asBytes (void *buf, size_t max_size)
 Instruction classes can override this function to return a a representation of themselves as a blob of bytes, generally assumed to be that instructions ExtMachInst. More...
- Public Member Functions inherited from RefCounted
 RefCounted ()
 We initialize the reference count to zero and the first object to take ownership of it must increment it to one. More...
virtual ~RefCounted ()
 We make the destructor virtual because we're likely to have virtual functions on reference counted objects. More...
void incref () const
 Increment the reference count. More...
void decref () const
 Decrement the reference count and destroy the object if all references are gone. More...
- Public Attributes inherited from StaticInst
const ExtMachInst machInst
 The binary machine instruction. More...
- Static Public Attributes inherited from StaticInst
static StaticInstPtr nullStaticInstPtr
 Pointer to a statically allocated "null" instruction object. More...
static StaticInstPtr nopStaticInstPtr = new NopStaticInst
 Pointer to a statically allocated generic "nop" instruction object. More...

Detailed Description

Base classes for RegOps which provides a generateDisassembly method.

Definition at line 48 of file microregop.hh.

Constructor & Destructor Documentation

◆ RegOpBase()

X86ISA::RegOpBase::RegOpBase ( ExtMachInst  _machInst,
const char *  mnem,
const char *  _instMnem,
uint64_t  setFlags,
InstRegIndex  _src1,
InstRegIndex  _dest,
uint8_t  _dataSize,
uint16_t  _ext,
OpClass  __opClass 

Definition at line 58 of file microregop.hh.

References dataSize, and foldOBit.

Member Function Documentation

◆ genFlags()

uint64_t X86ISA::RegOpBase::genFlags ( uint64_t  oldFlags,
uint64_t  flagMask,
uint64_t  _dest,
uint64_t  _src1,
uint64_t  _src2,
bool  subtract = false 
) const

Member Data Documentation

◆ dataSize

const uint8_t X86ISA::RegOpBase::dataSize

◆ dest

const RegIndex X86ISA::RegOpBase::dest

Definition at line 52 of file microregop.hh.

◆ ext

const uint16_t X86ISA::RegOpBase::ext

Definition at line 54 of file microregop.hh.

◆ foldOBit

RegIndex X86ISA::RegOpBase::foldOBit

Definition at line 55 of file microregop.hh.

Referenced by RegOpBase().

◆ src1

const RegIndex X86ISA::RegOpBase::src1

Definition at line 51 of file microregop.hh.

The documentation for this class was generated from the following files:

Generated on Wed Sep 30 2020 14:03:15 for gem5 by doxygen 1.8.17