gem5 v24.0.0.0
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Base class for system operations. More...
#include <standard.hh>
Protected Member Functions | |
std::string | generateDisassembly (Addr pc, const loader::SymbolTable *symtab) const override |
Internal function to generate disassembly string. | |
Fault | executeEBreakOrSemihosting (ExecContext *xc) const |
RiscvStaticInst (const char *_mnemonic, ExtMachInst _machInst, OpClass __opClass) | |
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RiscvStaticInst (const char *_mnemonic, ExtMachInst _machInst, OpClass __opClass) | |
template<typename T > | |
T | rvSelect (T v32, T v64) const |
template<typename T32 , typename T64 > | |
T64 | rvExt (T64 x) const |
uint64_t | rvZext (uint64_t x) const |
int64_t | rvSext (int64_t x) const |
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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) | |
Constructor. | |
template<typename T > | |
size_t | simpleAsBytes (void *buf, size_t max_size, const T &t) |
Additional Inherited Members | |
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using | RegIdArrayPtr = RegId (StaticInst:: *)[] |
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void | advancePC (PCStateBase &pc) const override |
void | advancePC (ThreadContext *tc) const override |
std::unique_ptr< PCStateBase > | buildRetPC (const PCStateBase &cur_pc, const PCStateBase &call_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. | |
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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 RegId & | destRegIdx (int i) const |
Return logical index (architectural reg num) of i'th destination reg. | |
void | setDestRegIdx (int i, const RegId &val) |
const RegId & | srcRegIdx (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< PCStateBase > | branchTarget (const PCStateBase &pc) const |
Return the target address for a PC-relative branch. | |
virtual std::unique_ptr< PCStateBase > | branchTarget (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. | |
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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. | |
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ExtMachInst | machInst |
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static StaticInstPtr | nullStaticInstPtr |
Pointer to a statically allocated "null" instruction object. | |
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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()). | |
Base class for system operations.
Definition at line 76 of file standard.hh.
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protected |
Definition at line 93 of file standard.cc.
References gem5::Workload::getSemihosting(), gem5::ThreadContext::getSystemPtr(), gem5::NoFault, gem5::ExecContext::pcState(), gem5::ExecContext::tcBase(), and gem5::System::workload.
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overrideprotectedvirtual |
Internal function to generate disassembly string.
Implements gem5::StaticInst.
Definition at line 80 of file standard.cc.
References gem5::StaticInst::mnemonic, gem5::RiscvISA::registerName(), gem5::StaticInst::srcRegIdx(), and gem5::RiscvISA::ss.
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inlineprotected |
Definition at line 55 of file static_inst.hh.