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

Fixed the number of integer registers. There are MaxGL+1 sets of globals, not just MaxGL.

Browse source 
--HG--
extra : convert_revision : 6fd090f112611db1e72a1f129dff03687d52930a
This commit is contained in:
Gabe Black 2007-01-26 16:38:29 -05:00
parent 5407a6bc32
commit 47b2aa6346
2 changed files with 7 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

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

@ -48,7 +48,7 @@ namespace SparcISA
std::string getIntRegName(RegIndex);
const int NumIntArchRegs = 32;
const int NumIntRegs = MaxGL * 8 + NWindows * 16 + NumMicroIntRegs;
const int NumIntRegs = (MaxGL + 1) * 8 + NWindows * 16 + NumMicroIntRegs;
class IntRegFile
{

10
src/arch/sparc/regfile.cc
View file

@ -157,6 +157,8 @@ int SparcISA::flattenIntIndex(ThreadContext * tc, int reg)
int cwp = tc->readMiscReg(MISCREG_CWP);
//DPRINTF(Sparc, "Global Level = %d, Current Window Pointer = %d\n", gl, cwp);
int newReg;
//The total number of global registers
int numGlobals = (MaxGL + 1) * 8;
if(reg < 8)
{
//Global register
@ -167,14 +169,14 @@ int SparcISA::flattenIntIndex(ThreadContext * tc, int reg)
{
//Regular windowed register
//Put it in the window pointed to by cwp
newReg = MaxGL * 8 +
newReg = numGlobals +
((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;
newReg = reg - NumIntArchRegs + numGlobals + NWindows * 16;
}
else if(reg < 2 * NumIntArchRegs + NumMicroIntRegs)
{
@ -189,7 +191,7 @@ int SparcISA::flattenIntIndex(ThreadContext * tc, int reg)
{
//Windowed register from the previous window
//Put it in the window before the one pointed to by cwp
newReg = MaxGL * 8 +
newReg = numGlobals +
((reg - 8 - (cwp - 1) * 16 + NWindows * 16) % (NWindows * 16));
}
}
@ -206,7 +208,7 @@ int SparcISA::flattenIntIndex(ThreadContext * tc, int reg)
{
//Windowed register from the next window
//Put it in the window after the one pointed to by cwp
newReg = MaxGL * 8 +
newReg = numGlobals +
((reg - 8 - (cwp + 1) * 16 + NWindows * 16) % (NWindows * 16));
}
}