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Memory related code optimization

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This commit is contained in:
Alex
2022-12-05 00:48:41 +02:00
parent f34278891b
commit 2d1c42fbcd
9 changed files with 123 additions and 57 deletions
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32
Core/Memory/PageMapIndexer.cpp
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@ -2,21 +2,27 @@
namespace Memory
{
Virtual::PageMapIndexer::PageMapIndexer(uint64_t VirtualAddress)
{
Virtual::PageMapIndexer::PageMapIndexer(uint64_t VirtualAddress)
{
#if defined(__amd64__)
this->PDPIndex = (VirtualAddress & ((uint64_t)0x1FF << 39)) >> 39;
this->PDIndex = (VirtualAddress & ((uint64_t)0x1FF << 30)) >> 30;
this->PTIndex = (VirtualAddress & ((uint64_t)0x1FF << 21)) >> 21;
this->PIndex = (VirtualAddress & ((uint64_t)0x1FF << 12)) >> 12;
uint64_t Address = VirtualAddress;
Address >>= 12;
this->PIndex = Address & 0x1FF;
Address >>= 9;
this->PTIndex = Address & 0x1FF;
Address >>= 9;
this->PDIndex = Address & 0x1FF;
Address >>= 9;
this->PDPIndex = Address & 0x1FF;
#elif defined(__i386__)
this->PDIndex = (VirtualAddress & ((uint64_t)0x3FF << 22)) >> 22;
this->PTIndex = (VirtualAddress & ((uint64_t)0x3FF << 12)) >> 12;
this->PIndex = (VirtualAddress & ((uint64_t)0xFFF)) >> 0;
uint64_t Address = VirtualAddress;
Address >>= 12;
this->PIndex = Address & 0x3FF;
Address >>= 10;
this->PTIndex = Address & 0x3FF;
Address >>= 10;
this->PDIndex = Address & 0x3FF;
#elif defined(__aarch64__)
this->PDIndex = (VirtualAddress & ((uint64_t)0x1FF << 30)) >> 30;
this->PTIndex = (VirtualAddress & ((uint64_t)0x1FF << 21)) >> 21;
this->PIndex = (VirtualAddress & ((uint64_t)0x1FF << 12)) >> 12;
#endif
}
}
}