gem5  v21.1.0.2
Public Member Functions | Private Attributes | List of all members
gem5::SparcISA::WarnUnimplemented Class Reference

Base class for unimplemented instructions that cause a warning to be printed (but do not terminate simulation). More...

#include <unimp.hh>

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

Public Member Functions

 WarnUnimplemented (const char *_mnemonic, ExtMachInst _machInst)
 Constructor. More...
 
Fault execute (ExecContext *xc, Trace::InstRecord *traceData) const override
 
std::string generateDisassembly (Addr pc, const loader::SymbolTable *symtab) const override
 Internal function to generate disassembly string. More...
 
- Public Member Functions inherited from gem5::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 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 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 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...
 
void setDestRegIdx (int i, const RegId &val)
 
const RegIdsrcRegIdx (int i) const
 Return logical index (architectural reg num) of i'th source reg. More...
 
void setSrcRegIdx (int i, const RegId &val)
 
virtual uint64_t getEMI () const
 
virtual ~StaticInst ()
 
virtual Fault initiateAcc (ExecContext *xc, Trace::InstRecord *traceData) const
 
virtual Fault completeAcc (Packet *pkt, ExecContext *xc, Trace::InstRecord *trace_data) const
 
virtual void advancePC (TheISA::PCState &pc_state) const =0
 
virtual TheISA::PCState buildRetPC (const TheISA::PCState &cur_pc, const TheISA::PCState &call_pc) const
 
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...
 
- 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. 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...
 

Private Attributes

bool warned
 Have we warned on this instruction yet? More...
 

Additional Inherited Members

- Public Types inherited from gem5::StaticInst
using RegIdArrayPtr = RegId(StaticInst::*)[]
 
- Static Public Attributes inherited from gem5::StaticInst
static StaticInstPtr nullStaticInstPtr
 Pointer to a statically allocated "null" instruction object. More...
 
- 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 (PCState &pcState) 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. More...
 
PCState buildRetPC (const PCState &curPC, const PCState &callPC) 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. More...
 
 StaticInst (const char *_mnemonic, OpClass op_class)
 Constructor. More...
 
template<typename T >
size_t simpleAsBytes (void *buf, size_t max_size, const T &t)
 
- 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)
 
- 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. More...
 
OpClass _opClass
 See opClass(). More...
 
int8_t _numSrcRegs = 0
 See numSrcRegs(). More...
 
int8_t _numDestRegs = 0
 See numDestRegs(). More...
 
int8_t _numFPDestRegs = 0
 The following are used to track physical register usage for machines with separate int & FP reg files. More...
 
int8_t _numIntDestRegs = 0
 
int8_t _numCCDestRegs = 0
 
int8_t _numVecDestRegs = 0
 To use in architectures with vector register file. More...
 
int8_t _numVecElemDestRegs = 0
 
int8_t _numVecPredDestRegs = 0
 
const char * mnemonic
 Base mnemonic (e.g., "add"). More...
 
std::unique_ptr< std::string > cachedDisassembly
 String representation of disassembly (lazily evaluated via disassemble()). More...
 

Detailed Description

Base class for unimplemented instructions that cause a warning to be printed (but do not terminate simulation).

This implementation is a little screwy in that it will print a warning for each instance of a particular unimplemented machine instruction, not just for each unimplemented opcode. Should probably make the 'warned' flag a static member of the derived class.

Definition at line 89 of file unimp.hh.

Constructor & Destructor Documentation

◆ WarnUnimplemented()

gem5::WarnUnimplemented::WarnUnimplemented ( const char *  _mnemonic,
ExtMachInst  _machInst 
)
inline

Constructor.

Definition at line 97 of file unimp.hh.

Member Function Documentation

◆ execute()

Fault gem5::SparcISA::WarnUnimplemented::execute ( ExecContext xc,
Trace::InstRecord traceData 
) const
inlineoverridevirtual

Implements gem5::StaticInst.

Definition at line 102 of file unimp.hh.

References gem5::StaticInst::mnemonic, gem5::NoFault, and warned.

◆ generateDisassembly()

std::string gem5::SparcISA::WarnUnimplemented::generateDisassembly ( Addr  pc,
const loader::SymbolTable symtab 
) const
inlineoverridevirtual

Internal function to generate disassembly string.

Reimplemented from gem5::SparcISA::SparcStaticInst.

Definition at line 113 of file unimp.hh.

References gem5::csprintf(), and gem5::StaticInst::mnemonic.

Member Data Documentation

◆ warned

bool gem5::SparcISA::WarnUnimplemented::warned
mutableprivate

Have we warned on this instruction yet?

Definition at line 93 of file unimp.hh.

Referenced by execute().


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

Generated on Tue Sep 21 2021 12:32:25 for gem5 by doxygen 1.8.17