mirror of
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57 lines
1.4 KiB
C++
57 lines
1.4 KiB
C++
/*
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This file is part of Fennix Kernel.
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Fennix Kernel is free software: you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation, either version 3 of
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the License, or (at your option) any later version.
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Fennix Kernel is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <memory.hpp>
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namespace Memory
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{
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Virtual::PageMapIndexer::PageMapIndexer(uintptr_t VirtualAddress)
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{
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uintptr_t Address = VirtualAddress;
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#if defined(__amd64__)
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Address >>= 12;
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this->PTEIndex = Address & 0x1FF;
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Address >>= 9;
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this->PDEIndex = Address & 0x1FF;
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Address >>= 9;
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this->PDPTEIndex = Address & 0x1FF;
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Address >>= 9;
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this->PMLIndex = Address & 0x1FF;
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#elif defined(__i386__)
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Address >>= 12;
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this->PTEIndex = Address & 0x3FF;
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Address >>= 10;
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this->PDEIndex = Address & 0x3FF;
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#else
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#warning "not implemented"
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UNUSED(Address);
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#endif
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if (VirtualAddress > PAGE_SIZE)
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{
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assert(
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this->PTEIndex != 0 ||
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this->PDEIndex != 0
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#if defined(__amd64__)
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|| this->PDPTEIndex != 0 ||
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this->PMLIndex != 0
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#endif
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);
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}
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}
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}
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