#include "arch/sparc/intregfile.hh"
#include "base/trace.hh"
+#include "base/misc.hh"
#include "sim/serialize.hh"
#include <string.h>
class Checkpoint;
-string SparcISA::getIntRegName(RegIndex index)
-{
- static std::string intRegName[NumIntRegs] =
- {"g0", "g1", "g2", "g3", "g4", "g5", "g6", "g7",
- "o0", "o1", "o2", "o3", "o4", "o5", "o6", "o7",
- "l0", "l1", "l2", "l3", "l4", "l5", "l6", "l7",
- "i0", "i1", "i2", "i3", "i4", "i5", "i6", "i7"};
- return intRegName[index];
-}
-
-int IntRegFile::flattenIndex(int reg)
-{
- int flatIndex = offset[reg >> FrameOffsetBits]
- | (reg & FrameOffsetMask);
- DPRINTF(Sparc, "Flattened index %d into %d.\n", reg, flatIndex);
- return flatIndex;
-}
-
void IntRegFile::clear()
{
- int x;
- for (x = 0; x < MaxGL; x++)
- memset(regGlobals[x], 0, sizeof(IntReg) * RegsPerFrame);
- for(int x = 0; x < 2 * NWindows; x++)
- memset(regSegments[x], 0, sizeof(IntReg) * RegsPerFrame);
+ memset(regs, 0, sizeof(IntReg) * NumIntRegs);
}
IntRegFile::IntRegFile()
{
- offset[Globals] = 0;
- regView[Globals] = regGlobals[0];
- setCWP(0);
clear();
}
IntReg IntRegFile::readReg(int intReg)
{
- IntReg val;
- if(intReg < NumRegularIntRegs)
- val = regView[intReg >> FrameOffsetBits][intReg & FrameOffsetMask];
- else if((intReg -= NumRegularIntRegs) < NumMicroIntRegs)
- val = microRegs[intReg];
- else
- panic("Tried to read non-existant integer register\n");
-
- DPRINTF(Sparc, "Read register %d = 0x%x\n", intReg, val);
- return val;
+ DPRINTF(IntRegs, "Read register %d = 0x%x\n", intReg, regs[intReg]);
+ return regs[intReg];
}
-Fault IntRegFile::setReg(int intReg, const IntReg &val)
+void IntRegFile::setReg(int intReg, const IntReg &val)
{
if(intReg)
{
- DPRINTF(Sparc, "Wrote register %d = 0x%x\n", intReg, val);
- if(intReg < NumRegularIntRegs)
- regView[intReg >> FrameOffsetBits][intReg & FrameOffsetMask] = val;
- else if((intReg -= NumRegularIntRegs) < NumMicroIntRegs)
- microRegs[intReg] = val;
- else
- panic("Tried to set non-existant integer register\n");
+ DPRINTF(IntRegs, "Wrote register %d = 0x%x\n", intReg, val);
+ regs[intReg] = val;
}
- return NoFault;
-}
-
-//This doesn't effect the actual CWP register.
-//It's purpose is to adjust the view of the register file
-//to what it would be if CWP = cwp.
-void IntRegFile::setCWP(int cwp)
-{
- int index = ((NWindows - cwp) % NWindows) * 2;
- offset[Outputs] = FrameOffset + (index * RegsPerFrame);
- offset[Locals] = FrameOffset + ((index+1) * RegsPerFrame);
- offset[Inputs] = FrameOffset +
- (((index+2) % (NWindows * 2)) * RegsPerFrame);
- regView[Outputs] = regSegments[index];
- regView[Locals] = regSegments[index+1];
- regView[Inputs] = regSegments[(index+2) % (NWindows * 2)];
-
- DPRINTF(Sparc, "Changed the CWP value to %d\n", cwp);
-}
-
-void IntRegFile::setGlobals(int gl)
-{
- DPRINTF(Sparc, "Now using %d globals", gl);
-
- regView[Globals] = regGlobals[gl];
- offset[Globals] = RegGlobalOffset + gl * RegsPerFrame;
+ return;
}
void IntRegFile::serialize(std::ostream &os)
{
- unsigned int x;
- for(x = 0; x < MaxGL; x++)
- SERIALIZE_ARRAY(regGlobals[x], RegsPerFrame);
- for(x = 0; x < 2 * NWindows; x++)
- SERIALIZE_ARRAY(regSegments[x], RegsPerFrame);
+ SERIALIZE_ARRAY(regs, NumIntRegs);
SERIALIZE_ARRAY(microRegs, NumMicroIntRegs);
}
void IntRegFile::unserialize(Checkpoint *cp, const std::string §ion)
{
- unsigned int x;
- for(x = 0; x < MaxGL; x++)
- UNSERIALIZE_ARRAY(regGlobals[x], RegsPerFrame);
- for(unsigned int x = 0; x < 2 * NWindows; x++)
- UNSERIALIZE_ARRAY(regSegments[x], RegsPerFrame);
+ UNSERIALIZE_ARRAY(regs, NumIntRegs);
UNSERIALIZE_ARRAY(microRegs, NumMicroIntRegs);
}