add: new driver device kit API. (DDK)

refactor: rename SCIKit -> user (then libuser.dylib)
boot/modules/netboot: fixed compilation for amd64.

Signed-off-by: Amlal El Mahrouss <amlal@nekernel.org>

9 files changed, 640 insertions, 0 deletions

diff --git a/dev/user/LPC.h b/dev/user/LPC.h
new file mode 100644
index 00000000..87e5e500
--- /dev/null
+++ b/dev/user/LPC.h
@@ -0,0 +1,56 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024-2025, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#pragma once
+
+#include <user/Macros.h>
+
+/// @file LPC.h
+/// @brief Local Procedure Code type and values.
+
+#define err_local_ok()	 (kLastError == kErrorSuccess)
+#define err_local_fail() (kLastError != kErrorSuccess)
+#define err_local_get()	 (kLastError)
+
+typedef SInt32 ErrObject;
+
+inline constexpr ErrObject kErrorSuccess			= 0;
+inline constexpr ErrObject kErrorExecutable			= 33;
+inline constexpr ErrObject kErrorExecutableLib		= 34;
+inline constexpr ErrObject kErrorFileNotFound		= 35;
+inline constexpr ErrObject kErrorDirectoryNotFound	= 36;
+inline constexpr ErrObject kErrorDiskReadOnly		= 37;
+inline constexpr ErrObject kErrorDiskIsFull			= 38;
+inline constexpr ErrObject kErrorProcessFault		= 39;
+inline constexpr ErrObject kErrorSocketHangUp		= 40;
+inline constexpr ErrObject kErrorThreadLocalStorage = 41;
+inline constexpr ErrObject kErrorMath				= 42;
+inline constexpr ErrObject kErrorNoNetwork			= 43;
+inline constexpr ErrObject kErrorHeapOutOfMemory	= 44;
+inline constexpr ErrObject kErrorNoSuchDisk			= 45;
+inline constexpr ErrObject kErrorFileExists			= 46;
+inline constexpr ErrObject kErrorFormatFailed		= 47;
+inline constexpr ErrObject kErrorNetworkTimeout		= 48;
+inline constexpr ErrObject kErrorInternal			= 49;
+inline constexpr ErrObject kErrorForkAlreadyExists	= 50;
+inline constexpr ErrObject kErrorOutOfTeamSlot		= 51;
+inline constexpr ErrObject kErrorHeapNotPresent		= 52;
+inline constexpr ErrObject kErrorNoEntrypoint		= 53;
+inline constexpr ErrObject kErrorDiskIsCorrupted	= 54;
+inline constexpr ErrObject kErrorDisk				= 55;
+inline constexpr ErrObject kErrorInvalidData		= 56;
+inline constexpr ErrObject kErrorAsync				= 57;
+inline constexpr ErrObject kErrorNonBlocking		= 58;
+inline constexpr ErrObject kErrorIPC				= 59;
+inline constexpr ErrObject kErrorSign				= 60;
+inline constexpr ErrObject kErrorInvalidCreds		= 61;
+inline constexpr ErrObject kErrorCDTrayBroken		= 62;
+inline constexpr ErrObject kErrorUnrecoverableDisk	= 63;
+inline constexpr ErrObject kErrorFileLocked			= 64;
+inline constexpr ErrObject kErrorUnimplemented		= -1;
+
+/// @brief The last error reported by the system to the process.
+IMPORT_C ErrObject kLastError;
diff --git a/dev/user/Macros.h b/dev/user/Macros.h
new file mode 100644
index 00000000..e2759258
--- /dev/null
+++ b/dev/user/Macros.h
@@ -0,0 +1,93 @@
+/* -------------------------------------------
+
+Copyright (C) 2024-2025, Amlal EL Mahrouss, all rights reserved.
+
+File: Macros.h
+Purpose: libsci Macros header.
+
+------------------------------------------- */
+
+#pragma once
+
+/***********************************************************************************/
+/// @file user/Macros.h
+/// @brief Macros and Core types of the SCI (System Call Interface).
+/***********************************************************************************/
+
+#include <HintKit/CompilerHint.h>
+
+#define ATTRIBUTE(X) __attribute__((X))
+
+#define IMPORT_CXX extern "C++"
+#define IMPORT_C   extern "C"
+
+#define DEPRECATED ATTRIBUTE(deprecated)
+
+#define EXIT_SUCCESS (0)
+#define EXIT_FAILURE (1)
+
+#define FILE_MAX_LEN (256)
+
+#ifndef BOOL
+#define BOOL bool
+#endif
+
+typedef bool Bool;
+typedef bool Boolean;
+typedef void Void;
+
+#ifndef __cplusplus
+#define true (1)
+#define false (0)
+#endif
+
+#define YES true
+#define NO	false
+
+typedef __UINT64_TYPE__ UInt64;
+typedef __UINT32_TYPE__ UInt32;
+typedef __UINT16_TYPE__ UInt16;
+typedef __UINT8_TYPE__	UInt8;
+
+typedef __SIZE_TYPE__ SizeT;
+
+typedef __INT64_TYPE__ SInt64;
+typedef __INT32_TYPE__ SInt32;
+typedef __INT16_TYPE__ SInt16;
+typedef __INT8_TYPE__  SInt8;
+
+typedef void*			 VoidPtr;
+typedef __UINTPTR_TYPE__ UIntPtr;
+typedef char			 Char;
+
+#ifdef __cplusplus
+typedef decltype(nullptr) nullPtr;
+typedef nullPtr			  NullPtr;
+
+#define SCI_COPY_DELETE(KLASS)               \
+	KLASS& operator=(const KLASS&) = delete; \
+	KLASS(const KLASS&)			   = delete;
+
+#define SCI_COPY_DEFAULT(KLASS)               \
+	KLASS& operator=(const KLASS&) = default; \
+	KLASS(const KLASS&)			   = default;
+
+#define SCI_MOVE_DELETE(KLASS)          \
+	KLASS& operator=(KLASS&&) = delete; \
+	KLASS(KLASS&&)			  = delete;
+
+#define SCI_MOVE_DEFAULT(KLASS)          \
+	KLASS& operator=(KLASS&&) = default; \
+	KLASS(KLASS&&)			  = default;
+
+#endif
+
+IMPORT_C void _rtl_assert(Bool expr, const Char* origin);
+
+#define MUST_PASS(X) _rtl_assert(X, __FILE__)
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(X)              \
+	(((sizeof(X) / sizeof(*(X))) / \
+	  (static_cast<SizeT>(!(sizeof(X) % sizeof(*(X)))))))
+#endif
\ No newline at end of file
diff --git a/dev/user/SystemCalls.h b/dev/user/SystemCalls.h
new file mode 100644
index 00000000..6a0c2845
--- /dev/null
+++ b/dev/user/SystemCalls.h
@@ -0,0 +1,341 @@
+/* -------------------------------------------

+

+Copyright (C) 2024-2025, Amlal EL Mahrouss, all rights reserved.

+

+File: SystemCalls.h

+Purpose: System Call Interface.

+

+------------------------------------------- */

+

+#ifndef SCI_SCI_H

+#define SCI_SCI_H

+

+#include <user/Macros.h>

+

+// ------------------------------------------------------------------------------------------ //

+/// @brief Types API.

+// ------------------------------------------------------------------------------------------ //

+

+typedef VoidPtr SCIObject;

+

+typedef SCIObject IOObject;

+typedef IOObject  FSObject;

+typedef SCIObject DLLObject;

+typedef SCIObject ThreadObject;

+typedef SCIObject SocketObject;

+

+// ------------------------------------------------------------------------------------------ //

+/// @brief Dynamic Loader API.

+// ------------------------------------------------------------------------------------------ //

+

+/// @brief Get function which is part of the DLL.

+/// @param symbol the symbol to look for

+/// @param dll_handle the DLL handle.

+/// @return the proc pointer.

+IMPORT_C SCIObject LdrGetDLLSymbolFromHandle(_Input const Char* symbol, _Input SCIObject dll_handle);

+

+/// @brief Open DLL handle.

+/// @param path

+/// @param drv

+/// @return

+IMPORT_C SCIObject LdrOpenDLLHandle(_Input const Char* path, _Input const Char* drive_letter);

+

+/// @brief Close DLL handle

+/// @param dll_handle

+/// @return

+IMPORT_C Void LdrCloseDLLHandle(_Input SCIObject* dll_handle);

+

+// ------------------------------------------------------------------------------------------ //

+// File API.

+// ------------------------------------------------------------------------------------------ //

+

+/// @brief Opens a file from a drive.

+/// @param fs_path the filesystem path.

+/// @param drive_letter drive name, use NULL to use default drive location.

+/// @return the file descriptor of the file.

+IMPORT_C SCIObject IoOpenFile(const Char* fs_path, const Char* drive_letter);

+

+/// @brief Closes a file and flushes its content.

+/// @param file_desc the file descriptor.

+/// @return Function doesn't return a type.

+IMPORT_C Void IoCloseFile(_Input SCIObject file_desc);

+

+/// @brief Write data to a file.

+/// @param file_desc the file descriptor.

+/// @param out_data the data to write.

+/// @param sz_data the size of the data to write.

+/// @return the number of bytes written.

+IMPORT_C UInt32 IoWriteFile(_Input SCIObject file_desc, _Output VoidPtr out_data, SizeT sz_data);

+

+/// @brief Read data from a file.

+/// @param file_desc the file descriptor.

+/// @param out_data the data to read.

+/// @param sz_data the size of the data to read.

+IMPORT_C UInt32 IoReadFile(_Input SCIObject file_desc, _Output VoidPtr* out_data, SizeT sz_data);

+

+/// @brief Rewind the file pointer to the beginning of the file.

+/// @param file_desc the file descriptor.

+/// @return the number of bytes read.

+IMPORT_C UInt64 IoRewindFile(_Input SCIObject file_desc);

+

+/// @brief Tell the current position of the file pointer.

+/// @param file_desc the file descriptor.

+/// @return the current position of the file pointer.

+IMPORT_C UInt64 IoTellFile(_Input SCIObject file_desc);

+

+/// @brief Seek file offset from file descriptor.

+IMPORT_C UInt64 IoSeekFile(_Input SCIObject file_desc, UInt64 file_offset);

+

+// ------------------------------------------------------------------------

+// Process API.

+// ------------------------------------------------------------------------

+

+/// @brief Spawns a Thread Information Block and Global Information Block inside the current process.

+/// @param process_id Target Process ID, must be valid.

+/// @return > 0 error ocurred or already present, = 0 success.

+IMPORT_C UInt32 RtlSpawnIB(UIntPtr process_id);

+

+/// @brief Spawns a process with a unique pid (stored as UIntPtr).

+/// @param process_path process filesystem path.

+/// @return > 0 process was created.

+IMPORT_C UIntPtr RtlSpawnProcess(const Char* process_path, SizeT argc, Char** argv, Char** envp, SizeT envp_len);

+

+/// @brief Exits a process with an exit_code.

+/// @return if it has succeeded true, otherwise false.

+IMPORT_C Bool RtlExitProcess(UIntPtr handle, UIntPtr exit_code);

+

+/// @brief Get current PID of process.

+/// @return Current process ID.

+IMPORT_C UIntPtr RtlCurrentPID(Void);

+

+// ------------------------------------------------------------------------

+// Memory Manager API.

+// ------------------------------------------------------------------------

+

+/// @brief Creates a new heap from the process's address space.

+/// @param len the length of it.

+/// @param flags the flags of it.

+/// @return heap pointer.

+IMPORT_C VoidPtr MmCreateHeap(_Input SizeT len, _Input UInt32 flags);

+

+/// @brief Destroys the pointer

+/// @param heap the heap itself.

+/// @return void.

+IMPORT_C Void MmDestroyHeap(_Input VoidPtr heap);

+

+/// @brief Change protection flags of a memory region.

+IMPORT_C Void MmSetHeapFlags(_Input VoidPtr heap, _Input UInt32 flags);

+

+/// @brief Change protection flags of a memory region.

+IMPORT_C UInt32 MmGetHeapFlags(_Input VoidPtr heap);

+

+/// @brief Fill memory region with CRC32.

+IMPORT_C UInt32 MmFillCRC32Heap(_Input VoidPtr heap);

+

+/// @brief Copy memory region.

+IMPORT_C VoidPtr MmCopyMemory(_Input VoidPtr dest, _Input VoidPtr src, _Input SizeT len);

+

+/// @brief Compare memory regions.

+IMPORT_C SInt64 MmCmpMemory(_Input VoidPtr dest, _Input VoidPtr src, _Input SizeT len);

+

+/// @brief Fill memory region.

+IMPORT_C VoidPtr MmFillMemory(_Input VoidPtr dest, _Input SizeT len, _Input UInt8 value);

+

+/// @brief Compare string regions.

+IMPORT_C SInt64 MmStrCmp(_Input const Char* dest, _Input const Char* src);

+

+/// @brief Get length of string.

+IMPORT_C SInt64 MmStrLen(const Char* str);

+

+// ------------------------------------------------------------------------

+// @brief Error API.

+// ------------------------------------------------------------------------

+

+IMPORT_C SInt32 ErrGetLastError(Void);

+

+// ------------------------------------------------------------------------

+// @brief Threading API.

+// ------------------------------------------------------------------------

+

+/// @brief Exit the current thread.

+/// @param exit_code the exit code.

+IMPORT_C Void ThrExitCurrentThread(_Input SInt32 exit_code);

+

+/// @brief Exit the main thread.

+/// @param exit_code the exit code.

+IMPORT_C Void ThrExitMainThread(_Input SInt32 exit_code);

+

+/// @brief Exit a thread.

+/// @param thread the thread to exit.

+/// @param exit_code the exit code.

+IMPORT_C Void ThrExitThread(_Input ThreadObject thread, _Input SInt32 exit_code);

+

+/// @brief Thread procedure function type.

+typedef Void (*thread_proc_kind)(int argc, char** argv);

+

+/// @brief Creates a thread.

+/// @param procedure the thread procedure.

+/// @param argument_count number of arguments inside that thread.

+/// @param flags Thread flags.

+/// @return the thread object.

+IMPORT_C ThreadObject ThrCreateThread(thread_proc_kind procedure, SInt32 argument_count, SInt32 flags);

+

+/// @brief Yields the current thread.

+/// @param thread the thread to yield.

+IMPORT_C Void ThrYieldThread(ThreadObject thrd);

+

+/// @brief Joins a thread.

+/// @param thread the thread to join.

+IMPORT_C Void ThrJoinThread(ThreadObject thrd);

+

+/// @brief Detach a thread.

+/// @param thread the thread to detach.

+IMPORT_C Void ThrDetachThread(ThreadObject thrd);

+

+// ------------------------------------------------------------------------

+// @brief Drive Management API.

+// ------------------------------------------------------------------------

+

+// ------------------------------------------------------------------------------------------ //

+/// @brief Get the default drive letter.

+/// @param void.

+/// @return the drive letter.

+// ------------------------------------------------------------------------------------------ //

+IMPORT_C Char* DrvGetDefaultDriveLetter(Void);

+

+// ------------------------------------------------------------------------------------------ //

+/// @brief Get the drive letter from a path.

+/// @param path the path.

+/// @return the drive letter.

+// ------------------------------------------------------------------------------------------ //

+IMPORT_C Char* DrvGetDriveLetterFromPath(_Input const Char* path);

+

+// ------------------------------------------------------------------------------------------ //

+/// @brief Get a mounted drive from a letter.

+/// @param letter the letter (A..Z).

+/// @return the drive object.

+// ------------------------------------------------------------------------------------------ //

+IMPORT_C SCIObject DrvGetMountedDrive(_Input const Char letter);

+

+// ------------------------------------------------------------------------------------------ //

+/// @brief Mount a drive.

+/// @param path the path to mount.

+/// @param letter the letter to mount.

+// ------------------------------------------------------------------------------------------ //

+IMPORT_C Void DrvMountDrive(_Input const Char* path, _Input const Char* letter);

+

+// ------------------------------------------------------------------------------------------ //

+/// @brief Unmount a drive.

+/// @param letter the letter to unmount.

+// ------------------------------------------------------------------------------------------ //

+IMPORT_C Void DrvUnmountDrive(_Input const Char letter);

+

+// ------------------------------------------------------------------------

+// Event handling API, use to listen to OS specific events.

+// ------------------------------------------------------------------------

+

+// ------------------------------------------------------------------------------------------ //

+/// @brief Add an event listener.

+/// @param event_name the event name.

+/// @param listener the listener to add.

+/// @return the event listener.

+// ------------------------------------------------------------------------------------------ //

+

+IMPORT_C Void EvtAddListener(_Input const Char* event_name, _Input SCIObject listener);

+

+// ------------------------------------------------------------------------------------------ //

+/// @brief Remove an event listener.

+/// @param event_name the event name.

+/// @param listener the listener to remove.

+/// @return the event listener.

+// ------------------------------------------------------------------------------------------ //

+

+IMPORT_C Void EvtRemoveListener(_Input const Char* event_name, _Input SCIObject listener);

+

+// ------------------------------------------------------------------------------------------ //

+/// @brief Dispatch an event.

+/// @param event_name the event name.

+/// @param event_data the event data.

+/// @return the event data.

+// ------------------------------------------------------------------------------------------ //

+

+IMPORT_C VoidPtr EvtDispatchEvent(_Input const Char* event_name, _Input VoidPtr event_data);

+

+// ------------------------------------------------------------------------------------------ //

+// Power API.

+// ------------------------------------------------------------------------------------------ //

+

+enum

+{

+	kPowerCodeShutdown,

+	kPowerCodeReboot,

+	kPowerCodeSleep,

+	kPowerCodeWake,

+	kPowerCodeCount,

+};

+

+IMPORT_C SInt32 PwrReadCode(_Output SInt32& code);

+

+IMPORT_C SInt32 PwrSendCode(_Output SInt32& code);

+

+// ------------------------------------------------------------------------------------------ //

+// CD-ROM API.

+// ------------------------------------------------------------------------------------------ //

+

+IMPORT_C SInt32 CdEjectDrive(_Input const Char drv_letter);

+

+IMPORT_C SInt32 CdOpenTray(Void);

+

+IMPORT_C SInt32 CdCloseTray(Void);

+

+// ------------------------------------------------------------------------------------------ //

+// Printer API.

+// ------------------------------------------------------------------------------------------ //

+

+IMPORT_C SInt32 PrintOut(IOObject file /* nullptr to direct to stdout */, const Char* fmt, ...);

+

+IMPORT_C SInt32 PrintIn(IOObject file /* nullptr to direct to stdout */, const Char* fmt, ...);

+

+IMPORT_C IOObject PrintCreate(Void);

+

+IMPORT_C SInt32 PrintRelease(IOObject);

+

+IMPORT_C IOObject PrintGet(const Char* path);

+

+// ------------------------------------------------------------------------------------------ //

+// @brief Scheduler/Debug API.

+// ------------------------------------------------------------------------------------------ //

+

+typedef SInt32 AffinityKind;

+typedef UInt64 PID;

+

+IMPORT_C SInt32 SchedAffinity(PID, SInt32 req, AffinityKind* local);

+

+IMPORT_C SInt32 SchedTrace(PID, SInt32 req, VoidPtr address, VoidPtr data);

+

+IMPORT_C SInt32 SchedKill(PID, SInt32 req);

+

+IMPORT_C SInt32 SchedBreakPoint(Void);

+

+// ------------------------------------------------------------------------------------------ //

+// @brief Filesystem API.

+// ------------------------------------------------------------------------------------------ //

+

+IMPORT_C BOOL FsCopy(const char* path, const char* dst);

+IMPORT_C BOOL FsMove(const char* path, const char* dst);

+

+IMPORT_C BOOL FsExists(const char* path);

+

+IMPORT_C BOOL FsCreateDir(const char* path);

+IMPORT_C BOOL FsCreateFile(const char* path);

+IMPORT_C BOOL FsCreateAlias(const char* path, const char* from);

+

+// ------------------------------------------------------------------------------------------ //

+// @brief Format API.

+// ------------------------------------------------------------------------------------------ //

+

+IMPORT_C Char* StrFmt(const Char* fmt, ...);

+

+IMPORT_C UInt64 MathToNumber(const Char* in, const Char** endp, const SInt16 base);

+

+#endif // ifndef SCI_SCI_H

diff --git a/dev/user/docs/SPECIFICATION_SYSCALLS.md b/dev/user/docs/SPECIFICATION_SYSCALLS.md
new file mode 100644
index 00000000..b01018c7
--- /dev/null
+++ b/dev/user/docs/SPECIFICATION_SYSCALLS.md
@@ -0,0 +1,9 @@
+===================================
+
+# 0: General Information
+
+===================================
+
+- Programming Language: C/C++
+- Build System: Make/BTB
+- Purpose: System Call Interface
diff --git a/dev/user/libsci.json b/dev/user/libsci.json
new file mode 100644
index 00000000..ed9a8739
--- /dev/null
+++ b/dev/user/libsci.json
@@ -0,0 +1,20 @@
+{
+  "compiler_path": "x86_64-w64-mingw32-g++",
+  "compiler_std": "c++20",
+  "headers_path": ["../", "./"],
+  "sources_path": ["src/*.cc", "src/*.o"],
+  "output_name": "libuser.dylib",
+  "compiler_flags": [
+    "-fPIC",
+    "-ffreestanding",
+    "-shared",
+    "-fno-rtti",
+    "-fno-exceptions",
+    "-Wl,--subsystem=17"
+  ],
+  "cpp_macros": [
+    "kSCIVersion=0x0100",
+    "kSCIVersionHighest=0x0100",
+    "kSCIVersionLowest=0x0100"
+  ]
+}
diff --git a/dev/user/src/GNUmakefile b/dev/user/src/GNUmakefile
new file mode 100644
index 00000000..471e22d1
--- /dev/null
+++ b/dev/user/src/GNUmakefile
@@ -0,0 +1,16 @@
+##################################################
+# (c) Amlal EL Mahrouss, all rights reserved.
+# This is the bootloader makefile.
+##################################################
+
+ASM=nasm
+FLAGS=-f win64
+
+.PHONY: error
+error:
+	@echo "==> Invalid rule."
+	@echo "==> Use sci_asm_io_<arch> instead."
+
+.PHONY: sci_asm_io_x64
+sci_asm_io_x64:
+	$(ASM) $(FLAGS) SystemCall+IO.asm -o SystemCall+IO.o
diff --git a/dev/user/src/LPC.cc b/dev/user/src/LPC.cc
new file mode 100644
index 00000000..f3f320b7
--- /dev/null
+++ b/dev/user/src/LPC.cc
@@ -0,0 +1,10 @@
+/* -------------------------------------------
+
+Copyright (C) 2024-2025, Amlal EL Mahrouss, all rights reserved.
+
+File: LPC.cc
+Purpose: Local Procedure Codes.
+
+------------------------------------------- */
+
+#include <user/LPC.h>
diff --git a/dev/user/src/SystemCall+IO.asm b/dev/user/src/SystemCall+IO.asm
new file mode 100644
index 00000000..769ae513
--- /dev/null
+++ b/dev/user/src/SystemCall+IO.asm
@@ -0,0 +1,50 @@
+;; /*
+;; *	========================================================
+;; *
+;; *	libsci
+;; * 	Copyright (C) 2024-2025, Amlal EL Mahrouss, all rights reserved.
+;; *
+;; * 	========================================================
+;; */
+
+[bits 64]
+
+section .text
+
+global sci_syscall_arg_1
+global sci_syscall_arg_2
+global sci_syscall_arg_3
+global sci_syscall_arg_4
+
+sci_syscall_arg_1:
+    mov r8, rcx
+    syscall
+    ret
+
+sci_syscall_arg_2:
+    mov r8, rcx
+    mov r9, rdx
+    syscall
+    ret
+
+sci_syscall_arg_3:
+    mov rbx, r8
+
+    mov r8, rcx
+    mov r9, rdx
+    mov r10, rbx
+
+    syscall
+    ret
+
+sci_syscall_arg_4:
+    mov rbx, r8
+    mov rax, r9
+
+    mov r8, rcx
+    mov r9, rdx
+    mov r10, rbx
+    mov r11, rax
+
+    syscall
+    ret
diff --git a/dev/user/src/SystemCalls.cc b/dev/user/src/SystemCalls.cc
new file mode 100644
index 00000000..eadb07ce
--- /dev/null
+++ b/dev/user/src/SystemCalls.cc
@@ -0,0 +1,45 @@
+/* -------------------------------------------

+

+	Copyright (C) 2024-2025, Amlal EL Mahrouss, all rights reserved.

+

+------------------------------------------- */

+

+#include <user/SystemCalls.h>

+

+/// @file libsci.cc

+/// @brief Source file for the memory functions of the libsci.

+

+/// @brief Copy memory region.

+IMPORT_C VoidPtr MmCopyMemory(_Input VoidPtr dest, _Input VoidPtr src, _Input SizeT len)

+{

+	if (!len ||

+		!dest ||

+		!src)

+	{

+		return nullptr;

+	}

+

+	for (SizeT i = 0; i < len; i++)

+	{

+		((Char*)dest)[i] = ((Char*)src)[i];

+	}

+

+	return dest;

+}

+

+/// @brief Fill memory region with **value**.

+IMPORT_C VoidPtr MmFillMemory(_Input VoidPtr dest, _Input SizeT len, _Input UInt8 value)

+{

+	if (!len ||

+		!dest)

+	{

+		return nullptr;

+	}

+

+	for (SizeT i = 0; i < len; i++)

+	{

+		((Char*)dest)[i] = value;

+	}

+

+	return dest;

+}