Hi all,
I am attempting to generate all the stats necessary in the
SimpleTimingCPU model for our new power model. The last thing I need to
know is the number of register accesses. However, src/base/cpu.hh, there
are many functions that access the registers. Which functions do I have
to add an increment to the new register_access statistic? This for
integer I see:
uint64_t readIntRegOperand(const StaticInst *si, int idx)
void setIntRegOperand(const StaticInst *si, int idx, uint64_t val)
For float there is:
FloatReg readFloatRegOperand(const StaticInst *si, int idx, int width)
FloatReg readFloatRegOperand(const StaticInst *si, int idx)
FloatRegBits readFloatRegOperandBits(const StaticInst *si, int idx, int
width)
FloatRegBits readFloatRegOperandBits(const StaticInst *si, int idx)
void setFloatRegOperand(const StaticInst *si, int idx, FloatReg val,
int width)
void setFloatRegOperand(const StaticInst *si, int idx, FloatReg val)
void setFloatRegOperandBits(const StaticInst *si, int idx,
FloatRegBits val, int width)
void setFloatRegOperandBits(const StaticInst *si, int idx,
FloatRegBits val)
But then to add a bit more confusion, there is:
MiscReg readMiscRegNoEffect(int misc_reg)
MiscReg readMiscReg(int misc_reg)
void setMiscRegNoEffect(int misc_reg, const MiscReg &val)
void setMiscReg(int misc_reg, const MiscReg &val)
MiscReg readMiscRegOperandNoEffect(const StaticInst *si, int idx)
MiscReg readMiscRegOperand(const StaticInst *si, int idx)
void setMiscRegOperandNoEffect(const StaticInst *si, int idx, const
MiscReg &val)
void setMiscRegOperand(const StaticInst *si, int idx, const MiscReg &val)
So to which functions to I need to add the register_access statistic
increment in order to catch all register accesses? What are the miscReg
variants for? What is the difference between Effect and NoEffect?
Best,
-Rick
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