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Some changes for misc regs which were changed into unofficial integer registers, and moved the flattenIndex function into the register file.

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--HG--
extra : convert_revision : 6b797c793a6c12c61a23f0f78a1ea1c88609553e
This commit is contained in:
Gabe Black 2006-12-06 05:46:44 -05:00
parent 5ad1731a12
commit bf5f6c6430
2 changed files with 75 additions and 7 deletions
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80
src/arch/sparc/regfile.cc
View file

@ -151,6 +151,72 @@ void RegFile::setIntReg(int intReg, const IntReg &val)
intRegFile.setReg(intReg, val);
}
int SparcISA::flattenIntIndex(ThreadContext * tc, int reg)
{
int gl = tc->readMiscReg(MISCREG_GL);
int cwp = tc->readMiscReg(MISCREG_CWP);
//DPRINTF(Sparc, "Global Level = %d, Current Window Pointer = %d\n", gl, cwp);
int newReg;
if(reg < 8)
{
//Global register
//Put it in the appropriate set of globals
newReg = reg + gl * 8;
}
else if(reg < NumIntArchRegs)
{
//Regular windowed register
//Put it in the window pointed to by cwp
newReg = MaxGL * 8 +
((reg - 8 - cwp * 16 + NWindows * 16) % (NWindows * 16));
}
else if(reg < NumIntArchRegs + NumMicroIntRegs)
{
//Microcode register
//Displace from the end of the regular registers
newReg = reg - NumIntArchRegs + MaxGL * 8 + NWindows * 16;
}
else if(reg < 2 * NumIntArchRegs + NumMicroIntRegs)
{
reg -= (NumIntArchRegs + NumMicroIntRegs);
if(reg < 8)
{
//Global register from the next window
//Put it in the appropriate set of globals
newReg = reg + gl * 8;
}
else
{
//Windowed register from the previous window
//Put it in the window before the one pointed to by cwp
newReg = MaxGL * 8 +
((reg - 8 - (cwp - 1) * 16 + NWindows * 16) % (NWindows * 16));
}
}
else if(reg < 3 * NumIntArchRegs + NumMicroIntRegs)
{
reg -= (2 * NumIntArchRegs + NumMicroIntRegs);
if(reg < 8)
{
//Global register from the previous window
//Put it in the appropriate set of globals
newReg = reg + gl * 8;
}
else
{
//Windowed register from the next window
//Put it in the window after the one pointed to by cwp
newReg = MaxGL * 8 +
((reg - 8 - (cwp + 1) * 16 + NWindows * 16) % (NWindows * 16));
}
}
else
panic("Tried to flatten invalid register index %d!\n", reg);
DPRINTF(Sparc, "Flattened register %d to %d.\n", reg, newReg);
return newReg;
//return intRegFile.flattenIndex(reg);
}
void RegFile::serialize(std::ostream &os)
{
intRegFile.serialize(os);
@ -220,8 +286,8 @@ void SparcISA::copyMiscRegs(ThreadContext *src, ThreadContext *dest)
// ASRs
dest->setMiscReg(MISCREG_Y, src->readMiscReg(MISCREG_Y));
dest->setMiscReg(MISCREG_CCR, src->readMiscReg(MISCREG_CCR));
// dest->setMiscReg(MISCREG_Y, src->readMiscReg(MISCREG_Y));
// dest->setMiscReg(MISCREG_CCR, src->readMiscReg(MISCREG_CCR));
dest->setMiscReg(MISCREG_ASI, src->readMiscReg(MISCREG_ASI));
dest->setMiscReg(MISCREG_TICK, src->readMiscReg(MISCREG_TICK));
dest->setMiscReg(MISCREG_FPRS, src->readMiscReg(MISCREG_FPRS));
@ -236,11 +302,11 @@ void SparcISA::copyMiscRegs(ThreadContext *src, ThreadContext *dest)
dest->setMiscReg(MISCREG_PSTATE, src->readMiscReg(MISCREG_PSTATE));
dest->setMiscReg(MISCREG_PIL, src->readMiscReg(MISCREG_PIL));
dest->setMiscReg(MISCREG_CWP, src->readMiscReg(MISCREG_CWP));
dest->setMiscReg(MISCREG_CANSAVE, src->readMiscReg(MISCREG_CANSAVE));
dest->setMiscReg(MISCREG_CANRESTORE, src->readMiscReg(MISCREG_CANRESTORE));
dest->setMiscReg(MISCREG_OTHERWIN, src->readMiscReg(MISCREG_OTHERWIN));
dest->setMiscReg(MISCREG_CLEANWIN, src->readMiscReg(MISCREG_CLEANWIN));
dest->setMiscReg(MISCREG_WSTATE, src->readMiscReg(MISCREG_WSTATE));
// dest->setMiscReg(MISCREG_CANSAVE, src->readMiscReg(MISCREG_CANSAVE));
// dest->setMiscReg(MISCREG_CANRESTORE, src->readMiscReg(MISCREG_CANRESTORE));
// dest->setMiscReg(MISCREG_OTHERWIN, src->readMiscReg(MISCREG_OTHERWIN));
// dest->setMiscReg(MISCREG_CLEANWIN, src->readMiscReg(MISCREG_CLEANWIN));
// dest->setMiscReg(MISCREG_WSTATE, src->readMiscReg(MISCREG_WSTATE));
dest->setMiscReg(MISCREG_GL, src->readMiscReg(MISCREG_GL));
// Hyperprivilged registers

2
src/arch/sparc/regfile.hh
View file

@ -120,6 +120,8 @@ namespace SparcISA
void changeContext(RegContextParam param, RegContextVal val);
};
int flattenIntIndex(ThreadContext * tc, int reg);
void copyRegs(ThreadContext *src, ThreadContext *dest);
void copyMiscRegs(ThreadContext *src, ThreadContext *dest);