gem5
v20.1.0.0
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Base class for compressed operations that work only on registers. More...
#include <compressed.hh>
Protected Member Functions | |
std::string | generateDisassembly (Addr pc, const Loader::SymbolTable *symtab) const override |
Internal function to generate disassembly string. More... | |
Protected Member Functions inherited from RiscvISA::RiscvStaticInst | |
StaticInst (const char *_mnemonic, ExtMachInst _machInst, OpClass __opClass) | |
Constructor. More... | |
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) |
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 RiscvISA::RiscvStaticInst | |
void | advancePC (PCState &pc) 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... | |
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 RegId & | destRegIdx (int i) const |
Return logical index (architectural reg num) of i'th destination reg. More... | |
const RegId & | srcRegIdx (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... | |
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... | |
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... | |
Base class for compressed operations that work only on registers.
Definition at line 44 of file compressed.hh.
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overrideprotectedvirtual |
Internal function to generate disassembly string.
Implements StaticInst.
Definition at line 42 of file compressed.cc.
References StaticInst::_destRegIdx, StaticInst::_srcRegIdx, StaticInst::mnemonic, RiscvISA::registerName(), and RiscvISA::ss.