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Architecture
Core
Crash
Driver
Memory
Video
CPU.cpp
Debugger.cpp
Disk.cpp
InterruptsManager.cpp
Lock.cpp
PeripheralComponentInterconnect.cpp
Power.cpp
README.md
Random.cpp
StackGuard.cpp
Symbols.cpp
SystemManagementBIOS.cpp
Time.cpp
Timer.cpp
UndefinedBehaviorSanitization.c
UniversalAsynchronousReceiverTransmitter.cpp
crashhandler.hpp
smbios.hpp
ubsan.h
Execute
FileSystem
Files
GUI
Library
Network
Profiling
Recovery
SystemCalls
Tasking
Tests
include
include_std
.gitignore
DAPI.hpp
Doxyfile
Fex.hpp
Kernel.cpp
KernelConfig.cpp
KernelThread.cpp
LICENSE
Makefile
README.md
dump.sh
ipc.h
kernel.h
syscalls.h
106 lines
3.0 KiB
C++
106 lines
3.0 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 <time.hpp>
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#include <debug.h>
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#include <io.h>
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namespace Time
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{
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Clock ReadClock()
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{
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Clock tm;
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#if defined(a86)
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uint32_t t = 0;
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outb(0x70, 0x00);
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t = inb(0x71);
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tm.Second = ((t & 0x0F) + ((t >> 4) * 10));
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outb(0x70, 0x02);
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t = inb(0x71);
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tm.Minute = ((t & 0x0F) + ((t >> 4) * 10));
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outb(0x70, 0x04);
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t = inb(0x71);
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tm.Hour = ((t & 0x0F) + ((t >> 4) * 10));
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outb(0x70, 0x07);
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t = inb(0x71);
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tm.Day = ((t & 0x0F) + ((t >> 4) * 10));
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outb(0x70, 0x08);
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t = inb(0x71);
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tm.Month = ((t & 0x0F) + ((t >> 4) * 10));
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outb(0x70, 0x09);
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t = inb(0x71);
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tm.Year = ((t & 0x0F) + ((t >> 4) * 10));
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tm.Counter = 0;
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#elif defined(aa64)
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tm.Year = 0;
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tm.Month = 0;
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tm.Day = 0;
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tm.Hour = 0;
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tm.Minute = 0;
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tm.Second = 0;
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tm.Counter = 0;
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#endif
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return tm;
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}
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Clock ConvertFromUnix(int Timestamp)
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{
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Clock result;
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uint64_t Seconds = Timestamp;
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uint64_t Minutes = Seconds / 60;
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uint64_t Hours = Minutes / 60;
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uint64_t Days = Hours / 24;
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result.Year = 1970;
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while (Days >= 365)
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{
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if (result.Year % 4 == 0 && (result.Year % 100 != 0 || result.Year % 400 == 0))
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{
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if (Days >= 366)
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{
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Days -= 366;
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result.Year++;
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}
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else
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break;
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}
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else
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{
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Days -= 365;
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result.Year++;
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}
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}
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int DaysInMonth[] = {31, result.Year % 4 == 0 ? 29 : 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
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for (result.Month = 0; result.Month < 12; result.Month++)
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{
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if (Days < static_cast<uint64_t>(DaysInMonth[result.Month]))
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break;
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Days -= DaysInMonth[result.Month];
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}
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result.Month++;
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result.Day = static_cast<int>(Days) + 1;
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result.Hour = static_cast<int>(Hours % 24);
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result.Minute = static_cast<int>(Minutes % 60);
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result.Second = static_cast<int>(Seconds % 60);
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result.Counter = static_cast<uint64_t>(Timestamp);
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return result;
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}
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}
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