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alpha: Make the TLB cache to actually work.

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Improve MRU checking for StaticInst, Bus, TLB

--HG--
extra : convert_revision : 9116b5655cd2986aeb4205438aad4a0f5a440006
This commit is contained in:
Vincentius Robby
2007-08-08 14:18:09 -04:00
parent ef32494e72
commit 13d10e844c
3 changed files with 51 additions and 37 deletions
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23
src/cpu/static_inst.hh
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@@ -597,20 +597,19 @@ StaticInst::decode(StaticInst::ExtMachInst mach_inst, Addr addr)
Addr page_addr = addr & ~(TheISA::PageBytes - 1);
// checks recently decoded addresses
if (recentDecodes[0].decodePage &&
page_addr == recentDecodes[0].page_addr) {
if (recentDecodes[0].decodePage->decoded(mach_inst, addr))
return recentDecodes[0].decodePage->getInst(addr);
if (recentDecodes[0].decodePage) {
if (page_addr == recentDecodes[0].page_addr) {
if (recentDecodes[0].decodePage->decoded(mach_inst, addr))
return recentDecodes[0].decodePage->getInst(addr);
return searchCache(mach_inst, addr, recentDecodes[0].decodePage);
}
return searchCache(mach_inst, addr, recentDecodes[0].decodePage);
} else if (recentDecodes[1].decodePage &&
page_addr == recentDecodes[1].page_addr) {
if (recentDecodes[1].decodePage->decoded(mach_inst, addr))
return recentDecodes[1].decodePage->getInst(addr);
if (recentDecodes[1].decodePage &&
page_addr == recentDecodes[1].page_addr) {
if (recentDecodes[1].decodePage->decoded(mach_inst, addr))
return recentDecodes[1].decodePage->getInst(addr);
return searchCache(mach_inst, addr, recentDecodes[1].decodePage);
return searchCache(mach_inst, addr, recentDecodes[1].decodePage);
}
}
// searches the page containing the address to decode