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1682f0b760
SPDX License Identifiers are a more compact / standardized way of representing file license information. See: https://spdx.dev/resources/use/#identifiers This was done with the `ambr` search and replace tool. ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
50 lines
1.9 KiB
C++
50 lines
1.9 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Format.h>
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#include <AK/Types.h>
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class PhysicalAddress {
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public:
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PhysicalAddress() = default;
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explicit PhysicalAddress(FlatPtr address)
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: m_address(address)
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{
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}
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[[nodiscard]] PhysicalAddress offset(FlatPtr o) const { return PhysicalAddress(m_address + o); }
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[[nodiscard]] FlatPtr get() const { return m_address; }
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void set(FlatPtr address) { m_address = address; }
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void mask(FlatPtr m) { m_address &= m; }
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[[nodiscard]] bool is_null() const { return m_address == 0; }
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[[nodiscard]] u8* as_ptr() { return reinterpret_cast<u8*>(m_address); }
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[[nodiscard]] const u8* as_ptr() const { return reinterpret_cast<const u8*>(m_address); }
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[[nodiscard]] PhysicalAddress page_base() const { return PhysicalAddress(m_address & 0xfffff000); }
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[[nodiscard]] FlatPtr offset_in_page() const { return PhysicalAddress(m_address & 0xfff).get(); }
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bool operator==(const PhysicalAddress& other) const { return m_address == other.m_address; }
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bool operator!=(const PhysicalAddress& other) const { return m_address != other.m_address; }
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bool operator>(const PhysicalAddress& other) const { return m_address > other.m_address; }
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bool operator>=(const PhysicalAddress& other) const { return m_address >= other.m_address; }
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bool operator<(const PhysicalAddress& other) const { return m_address < other.m_address; }
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bool operator<=(const PhysicalAddress& other) const { return m_address <= other.m_address; }
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private:
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FlatPtr m_address { 0 };
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};
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template<>
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struct AK::Formatter<PhysicalAddress> : AK::Formatter<FormatString> {
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void format(FormatBuilder& builder, PhysicalAddress value)
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{
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return AK::Formatter<FormatString>::format(builder, "P{}", value.as_ptr());
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}
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};
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