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Updated memory mapping functions

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This commit is contained in:
Alex
2022-11-05 04:40:15 +02:00
parent 6ae0e9db26
commit 52ef1e3b3b
4 changed files with 91 additions and 73 deletions
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42
Core/Memory/PageDirectoryEntry.cpp Normal file
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@ -0,0 +1,42 @@
#include <memory.hpp>
namespace Memory
{
void PageDirectoryEntry::AddFlag(uint64_t Flag) { this->Value.raw |= Flag; }
void PageDirectoryEntry::RemoveFlags(uint64_t Flag) { this->Value.raw &= ~Flag; }
void PageDirectoryEntry::ClearFlags() { this->Value.raw = 0; }
void PageDirectoryEntry::SetFlag(uint64_t Flag, bool Enabled)
{
this->Value.raw &= ~Flag;
if (Enabled)
this->Value.raw |= Flag;
}
bool PageDirectoryEntry::GetFlag(uint64_t Flag) { return (this->Value.raw & Flag) > 0 ? true : false; }
uint64_t PageDirectoryEntry::GetFlag() { return this->Value.raw; }
void PageDirectoryEntry::SetAddress(uint64_t Address)
{
#if defined(__amd64__)
Address &= 0x000000FFFFFFFFFF;
this->Value.raw &= 0xFFF0000000000FFF;
this->Value.raw |= (Address << 12);
#elif defined(__i386__)
Address &= 0x000FFFFF;
this->Value.raw &= 0xFFC00003;
this->Value.raw |= (Address << 12);
#elif defined(__aarch64__)
Address &= 0x000000FFFFFFFFFF;
this->Value.raw &= 0xFFF0000000000FFF;
this->Value.raw |= (Address << 12);
#endif
}
uint64_t PageDirectoryEntry::GetAddress()
{
#if defined(__amd64__)
return (this->Value.raw & 0x000FFFFFFFFFF000) >> 12;
#elif defined(__i386__)
return (this->Value.raw & 0x003FFFFF000) >> 12;
#elif defined(__aarch64__)
return (this->Value.raw & 0x000FFFFFFFFFF000) >> 12;
#endif
}
}