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/*
* Copyright (c) 2006-2007 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authors: Gabe Black
*/
#ifndef __ARCH_SPARC_INSTS_MICRO_HH__
#define __ARCH_SPARC_INSTS_MICRO_HH__
#include "arch/sparc/insts/static_inst.hh"
namespace SparcISA
{
class SparcMacroInst : public SparcStaticInst
{
protected:
const uint32_t numMicroops;
// Constructor.
SparcMacroInst(const char *mnem, ExtMachInst _machInst,
OpClass __opClass, uint32_t _numMicroops) :
SparcStaticInst(mnem, _machInst, __opClass),
numMicroops(_numMicroops)
{
assert(numMicroops);
microops = new StaticInstPtr[numMicroops];
flags[IsMacroop] = true;
}
~SparcMacroInst()
{
delete [] microops;
}
std::string generateDisassembly(
Addr pc, const SymbolTable *symtab) const override;
StaticInstPtr *microops;
StaticInstPtr
fetchMicroop(MicroPC upc) const override
{
assert(upc < numMicroops);
return microops[upc];
}
Fault
execute(ExecContext *, Trace::InstRecord *) const override
{
panic("Tried to execute a macroop directly!\n");
}
Fault
initiateAcc(ExecContext *, Trace::InstRecord *) const override
{
panic("Tried to execute a macroop directly!\n");
}
Fault
completeAcc(PacketPtr, ExecContext *, Trace::InstRecord *) const override
{
panic("Tried to execute a macroop directly!\n");
}
};
class SparcMicroInst : public SparcStaticInst
{
protected:
// Constructor.
SparcMicroInst(const char *mnem, ExtMachInst _machInst,
OpClass __opClass) :
SparcStaticInst(mnem, _machInst, __opClass)
{
flags[IsMicroop] = true;
}
void
advancePC(SparcISA::PCState &pcState) const override
{
if (flags[IsLastMicroop])
pcState.uEnd();
else
pcState.uAdvance();
}
};
class SparcDelayedMicroInst : public SparcMicroInst
{
protected:
// Constructor.
SparcDelayedMicroInst(const char *mnem, ExtMachInst _machInst,
OpClass __opClass) :
SparcMicroInst(mnem, _machInst, __opClass)
{
flags[IsDelayedCommit] = true;
}
};
}
#endif // __ARCH_SPARC_INSTS_MICRO_HH__
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