gem5 v24.0.0.0
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gem5::SparcISA::Trap Class Reference

Base class for trap instructions, or instructions that always fault. More...

#include <trap.hh>

Inheritance diagram for gem5::SparcISA::Trap:
gem5::SparcISA::SparcStaticInst gem5::StaticInst gem5::RefCounted

Protected Member Functions

 Trap (const char *mnem, ExtMachInst _machInst, OpClass __opClass)
std::string generateDisassembly (Addr pc, const loader::SymbolTable *symtab) const override
 Internal function to generate disassembly string.
- Protected Member Functions inherited from gem5::SparcISA::SparcStaticInst
 SparcStaticInst (const char *_mnemonic, ExtMachInst _machInst, OpClass __opClass)
void printSrcReg (std::ostream &os, int reg) const
void printDestReg (std::ostream &os, int reg) const
void printRegArray (std::ostream &os, const RegId *indexArray, int num) const
void advancePC (PCStateBase &pcState) const override
void advancePC (ThreadContext *tc) const override
size_t asBytes (void *buf, size_t size) override
 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.
std::unique_ptr< PCStateBasebuildRetPC (const PCStateBase &cur_pc, const PCStateBase &call_pc) const override
- Protected Member Functions inherited from gem5::StaticInst
void setRegIdxArrays (RegIdArrayPtr src, RegIdArrayPtr dest)
 Set the pointers which point to the arrays of source and destination register indices.
 StaticInst (const char *_mnemonic, OpClass op_class)
template<typename T >
size_t simpleAsBytes (void *buf, size_t max_size, const T &t)

Protected Attributes

int trapNum
- Protected Attributes inherited from gem5::SparcISA::SparcStaticInst
ExtMachInst machInst
- Protected Attributes inherited from gem5::StaticInst
std::bitset< Num_Flags > flags
 Flag values for this instruction.
OpClass _opClass
 See opClass().
uint8_t _numSrcRegs = 0
 See numSrcRegs().
uint8_t _numDestRegs = 0
 See numDestRegs().
std::array< uint8_t, MiscRegClass+1 > _numTypedDestRegs = {}
size_t _size = 0
 Instruction size in bytes.
const char * mnemonic
 Base mnemonic (e.g., "add").
std::unique_ptr< std::string > cachedDisassembly
 String representation of disassembly (lazily evaluated via disassemble()).

Additional Inherited Members

- Public Types inherited from gem5::StaticInst
using RegIdArrayPtr = RegId (StaticInst:: *)[]
- Public Member Functions inherited from gem5::StaticInst
uint8_t numSrcRegs () const
 Number of source registers.
uint8_t numDestRegs () const
 Number of destination registers.
uint8_t numDestRegs (RegClassType type) const
 Number of destination registers of a particular type.
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 isMatrix () const
bool isControl () const
bool isCall () const
bool isReturn () const
bool isDirectCtrl () const
bool isIndirectCtrl () const
bool isCondCtrl () const
bool isUncondCtrl () const
bool isSerializing () const
bool isSerializeBefore () const
bool isSerializeAfter () const
bool isSquashAfter () const
bool isFullMemBarrier () const
bool isReadBarrier () const
bool isWriteBarrier () const
bool isNonSpeculative () const
bool isQuiesce () const
bool isUnverifiable () const
bool isPseudo () const
bool isSyscall () const
bool isMacroop () const
bool isMicroop () const
bool isDelayedCommit () const
bool isLastMicroop () const
bool isFirstMicroop () const
bool isHtmStart () const
bool isHtmStop () const
bool isHtmCancel () const
bool isInvalid () 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.
const RegIddestRegIdx (int i) const
 Return logical index (architectural reg num) of i'th destination reg.
void setDestRegIdx (int i, const RegId &val)
const RegIdsrcRegIdx (int i) const
 Return logical index (architectural reg num) of i'th source reg.
void setSrcRegIdx (int i, const RegId &val)
virtual uint64_t getEMI () const
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 *trace_data) const
size_t size () const
virtual void size (size_t newSize)
virtual StaticInstPtr fetchMicroop (MicroPC upc) const
 Return the microop that goes with a particular micropc.
virtual std::unique_ptr< PCStateBasebranchTarget (const PCStateBase &pc) const
 Return the target address for a PC-relative branch.
virtual std::unique_ptr< PCStateBasebranchTarget (ThreadContext *tc) const
 Return the target address for an indirect branch (jump).
virtual const std::string & disassemble (Addr pc, const loader::SymbolTable *symtab=nullptr) const
 Return string representation of disassembled instruction.
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.
std::string getName ()
 Return name of machine instruction.
- Public Member Functions inherited from gem5::RefCounted
 RefCounted ()
 We initialize the reference count to zero and the first object to take ownership of it must increment it to one.
virtual ~RefCounted ()
 We make the destructor virtual because we're likely to have virtual functions on reference counted objects.
void incref () const
 Increment the reference count.
void decref () const
 Decrement the reference count and destroy the object if all references are gone.
- Static Public Attributes inherited from gem5::StaticInst
static StaticInstPtr nullStaticInstPtr
 Pointer to a statically allocated "null" instruction object.
- Static Protected Member Functions inherited from gem5::SparcISA::SparcStaticInst
static void printMnemonic (std::ostream &os, const char *mnemonic)
static void printReg (std::ostream &os, RegId reg)
static bool passesFpCondition (uint32_t fcc, uint32_t condition)
static bool passesCondition (uint32_t codes, uint32_t condition)

Detailed Description

Base class for trap instructions, or instructions that always fault.

Definition at line 49 of file trap.hh.

Constructor & Destructor Documentation

◆ Trap()

gem5::SparcISA::Trap::Trap ( const char * mnem,
ExtMachInst _machInst,
OpClass __opClass )

Definition at line 54 of file trap.hh.

Member Function Documentation

◆ generateDisassembly()

std::string gem5::SparcISA::Trap::generateDisassembly ( Addr pc,
const loader::SymbolTable * symtab ) const

Member Data Documentation

◆ trapNum

int gem5::SparcISA::Trap::trapNum

Definition at line 62 of file trap.hh.

Referenced by generateDisassembly().

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

Generated on Tue Jun 18 2024 16:24:23 for gem5 by doxygen 1.11.0