sanchayanmaity/gem5
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

ARM: Add new base classes for data processing instructions.

Browse source
This commit is contained in:
Gabe Black 2010-06-02 12:58:02 -05:00
parent 1e7b317a98
commit c02f9cdddf
2 changed files with 53 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

47
src/arch/arm/insts/pred_inst.hh
View file

@ -155,6 +155,53 @@ class PredIntOp : public PredOp
std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const;
};
class DataImmOp : public PredOp
{
protected:
IntRegIndex dest, op1;
uint32_t imm;
// Whether the carry flag should be modified if that's an option for
// this instruction.
bool rotC;
DataImmOp(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
IntRegIndex _dest, IntRegIndex _op1, uint32_t _imm, bool _rotC) :
PredOp(mnem, _machInst, __opClass),
dest(_dest), op1(_op1), imm(_imm), rotC(_rotC)
{}
};
class DataRegOp : public PredOp
{
protected:
IntRegIndex dest, op1, op2;
int32_t shiftAmt;
ArmShiftType shiftType;
DataRegOp(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
IntRegIndex _dest, IntRegIndex _op1, IntRegIndex _op2,
int32_t _shiftAmt, ArmShiftType _shiftType) :
PredOp(mnem, _machInst, __opClass),
dest(_dest), op1(_op1), op2(_op2),
shiftAmt(_shiftAmt), shiftType(_shiftType)
{}
};
class DataRegRegOp : public PredOp
{
protected:
IntRegIndex dest, op1, op2, shift;
ArmShiftType shiftType;
DataRegRegOp(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
IntRegIndex _dest, IntRegIndex _op1, IntRegIndex _op2,
IntRegIndex _shift, ArmShiftType _shiftType) :
PredOp(mnem, _machInst, __opClass),
dest(_dest), op1(_op1), op2(_op2), shift(_shift),
shiftType(_shiftType)
{}
};
/**
* Base class for predicated macro-operations.
*/

6
src/arch/arm/isa/operands.isa
View file

@ -76,6 +76,12 @@ def operands {{
maybePCRead, maybePCWrite),
'Index': ('IntReg', 'uw', 'index', 'IsInteger', 2,
maybePCRead, maybePCWrite),
'Op1': ('IntReg', 'uw', 'op1', 'IsInteger', 3,
maybePCRead, maybePCWrite),
'Op2': ('IntReg', 'uw', 'op2', 'IsInteger', 4,
maybePCRead, maybePCWrite),
'Shift': ('IntReg', 'uw', 'shift', 'IsInteger', 5,
maybePCRead, maybePCWrite),
#General Purpose Integer Reg Operands
'Rd': ('IntReg', 'uw', 'RD', 'IsInteger', 1, maybePCRead, maybePCWrite),
'Rm': ('IntReg', 'uw', 'RM', 'IsInteger', 2, maybePCRead, maybePCWrite),