MHR-3: See main changes below.

Kernel: Improve Disk interfaces regarding the struct they're using (all of them are using MountpountInterface now)

SystemLib: Start adding PowerPC code to the SystemLib to be cross compiled
as a PEF FAT binary.

Kernel: Adding new builtins to support a wide range of hardware.

Signed-off-by: Amlal El Mahrouss <amlal@el-mahrouss-logic.com>

30 files changed, 301 insertions, 121 deletions

diff --git a/Private/Builtins/APM/.gitkeep b/Private/Builtins/APM/.gitkeep
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/Private/Builtins/APM/.gitkeep
diff --git a/Private/Builtins/ATA/Defines.hxx b/Private/Builtins/ATA/Defines.hxx
index 0a07bc68..a8cabe77 100644
--- a/Private/Builtins/ATA/Defines.hxx
+++ b/Private/Builtins/ATA/Defines.hxx
@@ -16,7 +16,7 @@
 #include <CompilerKit/CompilerKit.hxx>
 #include <NewKit/Defines.hpp>
 
-// Status register
+///! Status register
 #define ATA_SR_BSY 0x80
 #define ATA_SR_DRDY 0x40
 #define ATA_SR_DF 0x20
@@ -26,7 +26,7 @@
 #define ATA_SR_IDX 0x02
 #define ATA_SR_ERR 0x01
 
-// Error register
+///! Error register
 #define ATA_ER_BBK 0x80
 #define ATA_ER_UNC 0x40
 #define ATA_ER_MC 0x20
@@ -50,6 +50,7 @@
 #define ATA_CMD_IDENTIFY_PACKET 0xA1
 #define ATA_CMD_IDENTIFY 0xEC
 
+///! ident offsets, use with data that we got from ATA_CMD_IDENTIFY.
 #define ATA_IDENT_DEVICE_TYPE 0
 #define ATA_IDENT_CYLINDERS 2
 #define ATA_IDENT_HEADS 6
@@ -65,7 +66,7 @@
 #define ATA_MASTER 0x00
 #define ATA_SLAVE 0x01
 
-// Register
+///! Register
 #define ATA_REG_DATA 0x00
 #define ATA_REG_ERROR 0x01
 #define ATA_REG_FEATURES 0x01
@@ -91,28 +92,30 @@
 #define ATA_PRIMARY_DCR_AS 0x3F6
 #define ATA_SECONDARY_DCR_AS 0x376
 
-// Irq
+///! Irq
 #define ATA_PRIMARY_IRQ 14
 #define ATA_SECONDARY_IRQ 15
 
-// Channels
+///! Channels
 #define ATA_PRIMARY 0x00
 #define ATA_SECONDARY 0x01
 
 #define ATA_CYL_LOW 4
 #define ATA_CYL_HIGH 5
 
-// IO Direction
+///! IO Direction
 #define ATA_READ 0x00
 #define ATA_WRITE 0x013
 
 #define ATA_PRIMARY_SEL 0xA0
 #define ATA_SECONDARY_SEL 0xB0
 
-// ATA Helpers
+///! ATA address register.
 #define ATA_ADDRESS1(x) (x + 3)
 #define ATA_ADDRESS2(x) (x + 4)
 #define ATA_ADDRESS3(x) (x + 5)
+
+///! ATA command register.
 #define ATA_COMMAND(x)  (x + 7)
 
 #define kATASectorSize 512
diff --git a/Private/Builtins/MBCI/Defines.hxx b/Private/Builtins/MBCI/Defines.hxx
new file mode 100644
index 00000000..b347485c
--- /dev/null
+++ b/Private/Builtins/MBCI/Defines.hxx
@@ -0,0 +1,13 @@
+/* -------------------------------------------
+
+    Copyright Mahrouss Logic
+
+------------------------------------------- */
+
+#pragma once
+
+#include <NewKit/Defines.hpp>
+
+struct MBCIHostInterface;
+struct MBCIDeviceInterface;
+struct MBCIPacketInterface;
diff --git a/Private/Builtins/OHCI/.gitkeep b/Private/Builtins/OHCI/.gitkeep
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/Private/Builtins/OHCI/.gitkeep
diff --git a/Private/Builtins/README.TXT b/Private/Builtins/README.TXT
index 4cb791f7..b090b2e5 100644
--- a/Private/Builtins/README.TXT
+++ b/Private/Builtins/README.TXT
@@ -8,9 +8,12 @@ What are these?
 
 These are NewOS builtins device drivers.
 
-===========
-Maintainers
-===========
+===================
+Maintainers/Authors
+===================
 
-ACPIFactoryInterface: Amlal EL Mahrouss
-AHCI: Amlal EL Mahrouss
\ No newline at end of file
+ACPIFactoryInterface: Amlal EL Mahrouss.
+AHCI: Amlal EL Mahrouss.
+Toolbox: Amlal EL Mahrouss.
+PS2: Amlal EL Mahrouss
+ATA: Amlal EL Mahrouss
\ No newline at end of file
diff --git a/Private/Builtins/SAS/.gitkeep b/Private/Builtins/SAS/.gitkeep
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/Private/Builtins/SAS/.gitkeep
diff --git a/Private/Builtins/SAS/SCSI.hxx b/Private/Builtins/SAS/SCSI.hxx
new file mode 100644
index 00000000..d7fb18d4
--- /dev/null
+++ b/Private/Builtins/SAS/SCSI.hxx
@@ -0,0 +1,14 @@
+/* -------------------------------------------
+
+    Copyright Mahrouss Logic
+
+------------------------------------------- */
+
+#pragma once
+
+#include <NewKit/Defines.hpp>
+
+/// @file SCSI.hxx
+/// @brief Serial SCSI driver.
+
+typedef NewOS::UInt16 scsi_packet_type[12];
diff --git a/Private/KernelKit/DeviceManager.hpp b/Private/KernelKit/DeviceManager.hpp
index 10d23604..0935c5b3 100644
--- a/Private/KernelKit/DeviceManager.hpp
+++ b/Private/KernelKit/DeviceManager.hpp
@@ -21,8 +21,10 @@
 #include <NewKit/ErrorOr.hpp>
 #include <NewKit/Ref.hpp>
 
+#define kDriveManagerCount 4U
+
 // Last Rev
-// Sat Feb 24 CET 2024
+// Wed, Apr  3, 2024  9:09:41 AM
 
 namespace NewOS {
 template <typename T>
@@ -41,12 +43,12 @@ class DeviceInterface {
   DeviceInterface(const DeviceInterface<T> &) = default;
 
  public:
-  DeviceInterface<T> &operator<<(T Data) {
+  virtual DeviceInterface<T> &operator<<(T Data) {
     m_Out(Data);
     return *this;
   }
 
-  DeviceInterface<T> &operator>>(T Data) {
+  virtual DeviceInterface<T> &operator>>(T Data) {
     m_In(Data);
     return *this;
   }
diff --git a/Private/KernelKit/DriveManager.hxx b/Private/KernelKit/DriveManager.hxx
index d82c302b..d3d14f9a 100644
--- a/Private/KernelKit/DriveManager.hxx
+++ b/Private/KernelKit/DriveManager.hxx
@@ -54,11 +54,11 @@ struct DriveTrait final {
   Void (*fInput)(DrivePacket* packetPtr);
   Void (*fOutput)(DrivePacket* packetPtr);
   Void (*fVerify)(DrivePacket* packetPtr);
+  const Char* (*fDriveKind)(Void);
 };
 
-//! drive as a device.
-typedef DeviceInterface<DriveTrait> DriveDevice;
-typedef DriveDevice* DriveDevicePtr;
+///! drive as a device.
+typedef DriveTrait* DriveTraitPtr;
 
 /**
  * @brief Mounted drives interface.
@@ -73,12 +73,12 @@ class MountpointInterface final {
   HCORE_COPY_DEFAULT(MountpointInterface);
 
  public:
-  DriveDevicePtr A() { return mA; }
-  DriveDevicePtr B() { return mB; }
-  DriveDevicePtr C() { return mC; }
-  DriveDevicePtr D() { return mD; }
+  DriveTraitPtr A() { return mA; }
+  DriveTraitPtr B() { return mB; }
+  DriveTraitPtr C() { return mC; }
+  DriveTraitPtr D() { return mD; }
 
-  DriveDevicePtr* GetAddressOf(Int32 index) {
+  DriveTraitPtr* GetAddressOf(Int32 index) {
     DbgLastError() = kErrorSuccess;
 
     switch (index) {
@@ -102,22 +102,26 @@ class MountpointInterface final {
   }
 
  private:
-  DriveDevicePtr mA, mB, mC, mD = nullptr;
+  DriveTraitPtr mA, mB, mC, mD = nullptr;
 };
 
-
 /// @brief Unimplemented drive.
 /// @param pckt 
 /// @return 
 Void ke_drv_unimplemented(DriveTrait::DrivePacket* pckt);
 
+/// @brief Gets the drive kind (ATA, SCSI, AHCI...)
+/// @param  
+/// @return 
+const Char* ke_drive_kind(Void);
+
 /// @brief Makes a new drive.
 /// @return the new drive.
-DriveTrait construct_drive() noexcept;
+DriveTrait construct_drive(void) noexcept;
 
 /// @brief Fetches the main drive.
 /// @return the new drive.
-DriveTrait main_drive() noexcept;
+DriveTrait main_drive(void) noexcept;
 }  // namespace NewOS
 
 #endif /* ifndef __DRIVE_MANAGER__ */
diff --git a/Private/KernelRsrc.rc b/Private/KernelRsrc.rc
index 3f5fffd3..0470d572 100644
--- a/Private/KernelRsrc.rc
+++ b/Private/KernelRsrc.rc
@@ -8,11 +8,11 @@ BEGIN
   BEGIN
     BLOCK "080904E4"
     BEGIN
-      VALUE "CompanyName", "Mahrouss Logic"
-      VALUE "FileDescription", "NewOS Microkernel for AMD64"
+      VALUE "CompanyName", "MahroussLogic"
+      VALUE "FileDescription", "NewOS microkernel."
       VALUE "FileVersion", "1.0"
       VALUE "InternalName", "NewKernel"
-      VALUE "LegalCopyright", "Mahrouss Logic"
+      VALUE "LegalCopyright", "MahroussLogic"
       VALUE "OriginalFilename", "NewKernel.exe"
       VALUE "ProductName", "NewKernel"
       VALUE "ProductVersion", "1.0"
diff --git a/Private/Source/DriveManager.cxx b/Private/Source/DriveManager.cxx
index 41a623c9..f79fcdf5 100644
--- a/Private/Source/DriveManager.cxx
+++ b/Private/Source/DriveManager.cxx
@@ -53,6 +53,21 @@ Void ke_drv_check_disk(DriveTrait::DrivePacket* pckt) {
     pckt->fPacketGood = false;
 }
 
+/// @brief Gets the drive kind (ATA, SCSI, AHCI...)
+/// @param  
+/// @return 
+#ifdef __ATA_PIO__ 
+const Char* ke_drive_kind(Void) { return "ATA-PIO"; }
+#endif
+
+#ifdef __ATA_DMA__ 
+const Char* ke_drive_kind(Void) { return "ATA-DMA"; }
+#endif
+
+#ifdef __AHCI__ 
+const Char* ke_drive_kind(Void) { return "AHCO"; }
+#endif
+
 /// @brief Unimplemented drive.
 /// @param pckt 
 /// @return 
diff --git a/Private/Source/NewFS+IO.cxx b/Private/Source/NewFS+IO.cxx
index 8264f7fa..63db9b1a 100644
--- a/Private/Source/NewFS+IO.cxx
+++ b/Private/Source/NewFS+IO.cxx
@@ -24,8 +24,8 @@
 
 /// Useful macros.
 
-#define NEWFS_WRITE(DRV, TRAITS, MP) (*MP->DRV()) << TRAITS
-#define NEWFS_READ(DRV, TRAITS, MP) (*MP->DRV()) >> TRAITS
+#define NEWFS_WRITE(DRV, TRAITS, MP) (*MP->DRV()).fOutput(&TRAITS)
+#define NEWFS_READ(DRV, TRAITS, MP) (*MP->DRV()).fInput(&TRAITS)
 
 using namespace NewOS;
 
@@ -41,19 +41,19 @@ Int32 fs_newfs_read_raw(MountpointInterface* Mnt, DriveTrait& DrvTrait, Int32 Dr
   
   switch (DrvIndex) {
     case kHCFSSubDriveA: {
-      NEWFS_READ(A, DrvTrait, Mnt);
+      NEWFS_READ(A, DrvTrait.fPacket, Mnt);
       break;
     }
     case kHCFSSubDriveB: {
-      NEWFS_READ(B, DrvTrait, Mnt);
+      NEWFS_READ(B, DrvTrait.fPacket, Mnt);
       break;
     }
     case kHCFSSubDriveC: {
-      NEWFS_READ(C, DrvTrait, Mnt);
+      NEWFS_READ(C, DrvTrait.fPacket, Mnt);
       break;
     }
     case kHCFSSubDriveD: {
-      NEWFS_READ(D, DrvTrait, Mnt);
+      NEWFS_READ(D, DrvTrait.fPacket, Mnt);
       break;
     }
   }
@@ -73,19 +73,19 @@ Int32 fs_newfs_write_raw(MountpointInterface* Mnt, DriveTrait& DrvTrait, Int32 D
 
   switch (DrvIndex) {
     case kHCFSSubDriveA: {
-      NEWFS_WRITE(A, DrvTrait, Mnt);
+      NEWFS_WRITE(A, DrvTrait.fPacket, Mnt);
       break;
     }
     case kHCFSSubDriveB: {
-      NEWFS_WRITE(B, DrvTrait, Mnt);
+      NEWFS_WRITE(B, DrvTrait.fPacket, Mnt);
       break;
     }
     case kHCFSSubDriveC: {
-      NEWFS_WRITE(C, DrvTrait, Mnt);
+      NEWFS_WRITE(C, DrvTrait.fPacket, Mnt);
       break;
     }
     case kHCFSSubDriveD: {
-      NEWFS_WRITE(D, DrvTrait, Mnt);
+      NEWFS_WRITE(D, DrvTrait.fPacket, Mnt);
       break;
     }
   }
diff --git a/Private/Source/Storage/AHCIDeviceInterface.cxx b/Private/Source/Storage/AHCIDeviceInterface.cxx
index c6a4a4be..c7a99cb0 100644
--- a/Private/Source/Storage/AHCIDeviceInterface.cxx
+++ b/Private/Source/Storage/AHCIDeviceInterface.cxx
@@ -12,8 +12,8 @@ using namespace NewOS;
 /// @param Out Disk output
 /// @param In  Disk input
 /// @param Cleanup Disk cleanup.
-AHCIDeviceInterface::AHCIDeviceInterface(void (*Out)(AHCIPacket outpacket),
-                      void (*In)(AHCIPacket inpacket), void (*Cleanup)(void))
+AHCIDeviceInterface::AHCIDeviceInterface(void (*Out)(MountpointInterface* outpacket),
+                      void (*In)(MountpointInterface* inpacket), void (*Cleanup)(void))
       : DeviceInterface(Out, In), fCleanup(Cleanup) {}
 
 /// @brief Class desctructor
diff --git a/Private/Source/Storage/ATADeviceInterface.cxx b/Private/Source/Storage/ATADeviceInterface.cxx
new file mode 100644
index 00000000..89f11f5d
--- /dev/null
+++ b/Private/Source/Storage/ATADeviceInterface.cxx
@@ -0,0 +1,68 @@
+/* -------------------------------------------
+
+    Copyright Mahrouss Logic
+
+------------------------------------------- */
+
+#include <StorageKit/ATA.hpp>
+
+using namespace NewOS;
+
+/// @brief Class constructor
+/// @param Out Disk output
+/// @param In  Disk input
+/// @param Cleanup Disk cleanup.
+ATADeviceInterface::ATADeviceInterface(
+    void (*Out)(MountpointInterface* outpacket),
+    void (*In)(MountpointInterface* inpacket), void (*Cleanup)(void))
+    : DeviceInterface(Out, In), fCleanup(Cleanup) {}
+
+/// @brief Class desctructor
+ATADeviceInterface::~ATADeviceInterface() {
+  MUST_PASS(fCleanup);
+  if (fCleanup) fCleanup();
+}
+
+/// @brief Returns the name of the device interface.
+/// @return it's name as a string.
+const char* ATADeviceInterface::Name() const { return "ATADeviceInterface"; }
+
+/// @brief Output operator.
+/// @param Data 
+/// @return 
+ATADeviceInterface& ATADeviceInterface::operator<<(MountpointInterface* Data) {
+  if (!Data) return *this;
+
+  for (SizeT driveCount = 0; driveCount < kDriveManagerCount; ++driveCount) {
+    auto interface = Data->GetAddressOf(driveCount);
+    if ((*interface) && rt_string_cmp((*interface)->fDriveKind(), "ATA-", 5) == 0) {
+      continue;
+    } else if ((*interface) &&
+               rt_string_cmp((*interface)->fDriveKind(), "ATA-", 5) != 0) {
+      return *this;
+    }
+  }
+
+  return (ATADeviceInterface&)DeviceInterface<MountpointInterface*>::operator<<(
+      Data);
+}
+
+/// @brief Input operator.
+/// @param Data 
+/// @return 
+ATADeviceInterface& ATADeviceInterface::operator>>(MountpointInterface* Data) {
+  if (!Data) return *this;
+
+  for (SizeT driveCount = 0; driveCount < kDriveManagerCount; ++driveCount) {
+    auto interface = Data->GetAddressOf(driveCount);
+    if ((*interface) && rt_string_cmp((*interface)->fDriveKind(), "ATA-", 5) == 0) {
+      continue;
+    } else if ((*interface) &&
+               rt_string_cmp((*interface)->fDriveKind(), "ATA-", 5) != 0) {
+      return *this;
+    }
+  }
+
+  return (ATADeviceInterface&)DeviceInterface<MountpointInterface*>::operator>>(
+      Data);
+}
\ No newline at end of file
diff --git a/Private/Source/Storage/StorageBase.cxx b/Private/Source/Storage/SCSIDeviceInterface.cxx
index bba4be1f..7625a279 100644
--- a/Private/Source/Storage/StorageBase.cxx
+++ b/Private/Source/Storage/SCSIDeviceInterface.cxx
@@ -4,8 +4,8 @@
 
 ------------------------------------------- */
 
-#include <StorageKit/Storage.hpp>
+#include <StorageKit/SCSI.hxx>
 
 ///! @brief ATAPI SCSI packet.
-const SKScsiPacket kCDRomPacketTemplate = {0x43, 0,  1,    0, 0, 0,
+const scsi_packet_type kCDRomPacketTemplate = {0x43, 0,  1,    0, 0, 0,
                                            0,    12, 0x40, 0, 0};
diff --git a/Private/StorageKit/AHCI.hpp b/Private/StorageKit/AHCI.hpp
index 6f5b5a90..08548a1c 100644
--- a/Private/StorageKit/AHCI.hpp
+++ b/Private/StorageKit/AHCI.hpp
@@ -7,15 +7,14 @@
 #pragma once
 
 #include <KernelKit/DeviceManager.hpp>
+#include <KernelKit/DriveManager.hxx>
 #include <NewKit/OwnPtr.hpp>
 
 namespace NewOS {
-class AHCIPacket;
-
-class AHCIDeviceInterface : public DeviceInterface<AHCIPacket> {
+class AHCIDeviceInterface : public DeviceInterface<MountpointInterface*> {
  public:
-  explicit AHCIDeviceInterface(void (*Out)(AHCIPacket outpacket),
-                               void (*In)(AHCIPacket inpacket),
+  explicit AHCIDeviceInterface(void (*Out)(MountpointInterface* outpacket),
+                               void (*In)(MountpointInterface* inpacket),
                                void (*Cleanup)(void));
 
   virtual ~AHCIDeviceInterface();
@@ -27,17 +26,6 @@ class AHCIDeviceInterface : public DeviceInterface<AHCIPacket> {
   const char *Name() const override;
 
  private:
-  void (*fOut)(AHCIPacket);
-  void (*fIn)(AHCIPacket);
   void (*fCleanup)(void);
 };
-
-class AHCIPacket final {
-  UIntPtr DataPtr;
-  SizeT DataSz;
-  UInt8 PortId;
-  UInt8 PortRdy;
-  Lba BeginLba;
-  Lba SectorCnt;
-};
 }  // namespace NewOS
\ No newline at end of file
diff --git a/Private/StorageKit/ATA.hpp b/Private/StorageKit/ATA.hpp
index 5ad5a2d4..da3c8d23 100644
--- a/Private/StorageKit/ATA.hpp
+++ b/Private/StorageKit/ATA.hpp
@@ -7,19 +7,24 @@
 #pragma once
 
 #include <KernelKit/DeviceManager.hpp>
+#include <KernelKit/DriveManager.hxx>
 #include <NewKit/OwnPtr.hpp>
+#include <NewKit/Utils.hpp>
 
 namespace NewOS {
-class ATAPacket;
-
-class ATADeviceInterface : public DeviceInterface<ATAPacket> {
+/// @brief ATA device interface type.
+class ATADeviceInterface : public DeviceInterface<MountpointInterface*> {
  public:
-  explicit ATADeviceInterface(void (*Out)(ATAPacket outpacket),
-                              void (*In)(ATAPacket inpacket),
+  explicit ATADeviceInterface(void (*Out)(MountpointInterface* outpacket),
+                              void (*In)(MountpointInterface* inpacket),
                               void (*Cleanup)(void));
 
   virtual ~ATADeviceInterface();
 
+public:
+  ATADeviceInterface &operator<<(MountpointInterface* Data) override;
+  ATADeviceInterface &operator>>(MountpointInterface* Data) override;
+
  public:
   ATADeviceInterface &operator=(const ATADeviceInterface &) = default;
   ATADeviceInterface(const ATADeviceInterface &) = default;
@@ -27,17 +32,6 @@ class ATADeviceInterface : public DeviceInterface<ATAPacket> {
   const char *Name() const override;
 
  private:
-  void (*fOut)(ATAPacket);
-  void (*fIn)(ATAPacket);
   void (*fCleanup)(void);
 };
-
-class ATAPacket final {
-  UIntPtr DataPtr;
-  SizeT DataSz;
-  UInt8 PortId;
-  UInt8 PortRdy;
-  Lba BeginLba;
-  Lba SectorCnt;
-};
 }  // namespace NewOS
\ No newline at end of file
diff --git a/Private/StorageKit/NVME.hpp b/Private/StorageKit/NVME.hpp
index d2ed585f..dc7b37d8 100644
--- a/Private/StorageKit/NVME.hpp
+++ b/Private/StorageKit/NVME.hpp
@@ -7,15 +7,14 @@
 #pragma once
 
 #include <KernelKit/DeviceManager.hpp>
+#include <KernelKit/DriveManager.hxx>
 #include <NewKit/OwnPtr.hpp>
 
 namespace NewOS {
-class NVMEPacket;
-
-class NVMEDeviceInterface : public DeviceInterface<NVMEPacket> {
+class NVMEDeviceInterface : public DeviceInterface<MountpointInterface*> {
  public:
-  explicit NVMEDeviceInterface(void (*Out)(NVMEPacket outpacket),
-                      void (*In)(NVMEPacket inpacket), void (*Cleanup)(void))
+  explicit NVMEDeviceInterface(void (*Out)(MountpointInterface* outpacket),
+                      void (*In)(MountpointInterface* inpacket), void (*Cleanup)(void))
       : DeviceInterface(Out, In), fCleanup(Cleanup) {}
 
   virtual ~NVMEDeviceInterface() {
@@ -29,17 +28,9 @@ class NVMEDeviceInterface : public DeviceInterface<NVMEPacket> {
   const char *Name() const override;
 
  public:
-  OwnPtr<NVMEPacket> operator()(UInt32 dmaLow, UInt32 dmaHigh, SizeT sz);
+  OwnPtr<MountpointInterface*> operator()(UInt32 dmaLow, UInt32 dmaHigh, SizeT sz);
 
  private:
   void (*fCleanup)(void);
 };
-
-class NVMEPacket final {
-  UIntPtr DataPtr;
-  SizeT   DataSz;
-  UInt8   Namespace;
-  Lba     Begin;
-  Lba     End;
-};
 }  // namespace NewOS
diff --git a/Private/StorageKit/SCSI.hxx b/Private/StorageKit/SCSI.hxx
new file mode 100644
index 00000000..eb207c9d
--- /dev/null
+++ b/Private/StorageKit/SCSI.hxx
@@ -0,0 +1,11 @@
+/* -------------------------------------------
+
+    Copyright Mahrouss Logic
+
+------------------------------------------- */
+
+#pragma once
+
+#include <Builtins/SAS/SCSI.hxx>
+
+extern const scsi_packet_type kCDRomPacketTemplate;
diff --git a/Private/StorageKit/Storage.hpp b/Private/StorageKit/Storage.hpp
index 8e7614e6..530e63bd 100644
--- a/Private/StorageKit/Storage.hpp
+++ b/Private/StorageKit/Storage.hpp
@@ -9,14 +9,8 @@
 #include <NewKit/Defines.hpp>
 #include <StorageKit/NVME.hpp>
 #include <StorageKit/AHCI.hpp>
+#include <StorageKit/SCSI.hxx>
 
-typedef NewOS::UInt16 SKScsiPacket[12];
-
-extern const SKScsiPacket kCDRomPacketTemplate;
-
-#define f_kDriveSectorSizeHDD (512)
-#define f_kDriveSectorSizeSSD (4096)
-#define f_kDriveSectorSizeCDROM (2048)
-
-#define f_kDriveSize(LAST_LBA) ((LAST_LBA + 1) * f_kDriveSectorSize)
-
+#define kDriveSectorSizeHDD (512)
+#define kDriveSectorSizeSSD (4096)
+#define kDriveSectorSizeCDROM (2048)
diff --git a/Public/Developer/HTMLLib/Headers/HTML.h b/Public/Developer/HTMLLib/Headers/HTML.h
index 6618f99f..5da334ed 100644
--- a/Public/Developer/HTMLLib/Headers/HTML.h
+++ b/Public/Developer/HTMLLib/Headers/HTML.h
@@ -46,5 +46,5 @@ typedef struct _HtmlDOMElement {
     struct _HtmlDOMElement* fParentElement;
 } HtmlDOMElement, *HtmlDOMElementRef;
 
-
+/// @brief Root element of the DOM.
 #define kHtmlRootElement "document"
diff --git a/Public/Developer/SystemLib/AMD64/CoreAssembly.s b/Public/Developer/SystemLib/AMD64/CoreAssembly.s
index 58bb1260..1d361621 100644
--- a/Public/Developer/SystemLib/AMD64/CoreAssembly.s
+++ b/Public/Developer/SystemLib/AMD64/CoreAssembly.s
@@ -4,19 +4,19 @@
 
 .section .text
 
-.globl RtGetAppObject
-.globl __assert_chk_fail
+.globl RtGetApp
+.globl RtAssertTriggerInterrupt
 
-/* @brief Process object getter */
+/* @brief Application getter */
 /* @throws: ApptError: appartement error. */
-RtGetAppObject:
+RtGetApp:
     mov $0x10, %rcx /* sysGetProcessObject */
     int $0x21
 
     /* rax gets saved and returned. */
     ret
 
-__assert_chk_fail:
+RtAssertTriggerInterrupt:
     mov $0x11, %rcx /* sysTerminateCurrentProcess */
     int $0x21
 
diff --git a/Public/Developer/SystemLib/Headers/Defines.h b/Public/Developer/SystemLib/Headers/Defines.h
index 6ab27497..d3b6b793 100644
--- a/Public/Developer/SystemLib/Headers/Defines.h
+++ b/Public/Developer/SystemLib/Headers/Defines.h
@@ -11,7 +11,7 @@
 #endif
 
 #ifdef _DEBUG
-#define CA_MUST_PASS(e) { if (!e) { DlgMsgBox("Sorry, an assertion failed.\nFile: %s\nLine: %i", __FILE__, __LINE__) __assert_chk_fail() } }
+#define CA_MUST_PASS(e) { if (!e) { DlgMsgBox("Sorry, an assertion failed.\nFile: %s\nLine: %i", __FILE__, __LINE__) RtAssertTriggerInterrupt() } }
 #else
 #define CA_MUST_PASS(e) CA_UNREFERENCED_PARAMETER(e)
 #endif
@@ -29,7 +29,7 @@
 struct Application;
 struct GUID;
 
-CA_EXTERN_C void __assert_chk_fail(void);
+CA_EXTERN_C void RtAssertTriggerInterrupt(void);
 
 #define CA_STDCALL __attribute__((stdcall))
 #define CA_CDECL __attribute__((cdecl))
@@ -115,6 +115,10 @@ enum RtProcessCall {
     /// @brief Open a specific handle (can be used as sel to call methods related to it.)
     kCallOpenFile,
     kCallCloseFile,
+    kCallOpenDir,
+    kCallCloseDir,
+    kCallOpenDevice,
+    kCallCloseDevice,
     kCallCreateWindow,
     kCallCloseWindow,
     kCallCreateMenu,
@@ -180,9 +184,20 @@ using StrType = CharacterTypeUTF8[N];
 
 #endif // ifdef C++
 
-CA_EXTERN_C ApplicationRef     RtGetAppObject(VoidType);
+/// @brief Get app singleton.
+/// @param  
+/// @return 
+CA_EXTERN_C ApplicationRef     RtGetApp(VoidType);
+
+/// @brief Get argument count
+/// @param  
+/// @return 
 CA_EXTERN_C SizeType           RtGetAppArgumentsCount(VoidType);
-CA_EXTERN_C CharacterTypeUTF8* RtGetAppArgumentsPtr(VoidType);
+
+/// @brief Get argument pointer.
+/// @param  
+/// @return 
+CA_EXTERN_C CharacterTypeUTF8** RtGetAppArgumentsPtr(VoidType);
 
 CA_EXTERN_C ApplicationRef kSharedApplication;
 
diff --git a/Public/Developer/SystemLib/Headers/File.h b/Public/Developer/SystemLib/Headers/File.h
index 6333bf6a..5e58d104 100644
--- a/Public/Developer/SystemLib/Headers/File.h
+++ b/Public/Developer/SystemLib/Headers/File.h
@@ -23,8 +23,6 @@ CA_EXTERN_C FSRef FsOpenFile(const CharacterTypeUTF8* path, const CharacterTypeU
 /// @return 
 CA_EXTERN_C VoidType FsCloseFile(FSRef refFs);
 
-typedef QWordType FSForkRef;
-
 /// @brief A fork information header.
 typedef struct _Fork {
     PtrVoidType forkData;
@@ -34,6 +32,8 @@ typedef struct _Fork {
     CharacterTypeUTF8 forkName[256];
 } ForkType;
 
+typedef ForkType* FSForkRef;
+
 /// @brief Gets the fork inside a file.
 /// @param refFs the filesystem ref
 /// @param forkName the fork's name
diff --git a/Public/Developer/SystemLib/Makefile b/Public/Developer/SystemLib/Makefile
index f7a30572..a753ccc8 100644
--- a/Public/Developer/SystemLib/Makefile
+++ b/Public/Developer/SystemLib/Makefile
@@ -5,7 +5,6 @@
 
 CC=x86_64-w64-mingw32-gcc
 AR=x86_64-w64-mingw32-ar
-ARFLAGS=-rcs
 CCINC=-I./
 CCFLAGS=-D__SINGLE_PRECISION__ -nostdlib -std=c17 -ffreestanding -Xlinker --subsystem=17 -shared
 OUTPUT=SystemLib.lib
diff --git a/Public/Developer/SystemLib/PowerPC/CoreAssembly.s b/Public/Developer/SystemLib/PowerPC/CoreAssembly.s
new file mode 100644
index 00000000..7fef98e3
--- /dev/null
+++ b/Public/Developer/SystemLib/PowerPC/CoreAssembly.s
@@ -0,0 +1,26 @@
+/** ===========================================
+ (C) Mahrouss Logic
+ Purpose: PowerPC low-level routines.
+    ===========================================*/
+
+.section .text
+
+.globl RtGetApp
+.globl RtAssertTriggerInterrupt
+.balign 4
+
+/* @brief Application getter */
+/* @throws: ApptError: appartement error. */
+RtGetApp:
+    stw 0x10, 0(3) /* sysGetProcessObject */
+    sc
+
+    blr
+
+RtAssertTriggerInterrupt:
+    stw 0x11, 0(3) /* sysTerminateCurrentProcess */
+    stw 0x3, 0(4)
+    sc
+
+    blr
+
diff --git a/Public/Developer/SystemLib/Sources/Application.c b/Public/Developer/SystemLib/Sources/Application.c
index d7a83d3e..f1391975 100644
--- a/Public/Developer/SystemLib/Sources/Application.c
+++ b/Public/Developer/SystemLib/Sources/Application.c
@@ -6,7 +6,7 @@
 
 #include <Headers/Defines.h>
 
-/// @brief Main Application object, retrieved from the RtGetAppObject symbol.
+/// @brief Main Application object, retrieved from the RtGetApp symbol.
 ApplicationRef kSharedApplication = NullPtr;
 
 /// @brief Gets the app arguments count.
@@ -19,7 +19,7 @@ CA_EXTERN_C SizeType RtGetAppArgumentsCount(VoidType) {
 /// @brief Gets the app arguments pointer.
 /// @param void no arguments.
 /// @return
-CA_EXTERN_C CharacterTypeUTF8* RtGetAppArgumentsPtr(VoidType) {
-  return (CharacterTypeUTF8*)kSharedApplication->Invoke(kSharedApplication,
+CA_EXTERN_C CharacterTypeUTF8** RtGetAppArgumentsPtr(VoidType) {
+  return (CharacterTypeUTF8**)kSharedApplication->Invoke(kSharedApplication,
                                                         kCallGetArgsPtr);
 }
\ No newline at end of file
diff --git a/Public/Developer/SystemLib/Sources/ApplicationStart.c b/Public/Developer/SystemLib/Sources/ApplicationStart.c
index 5b91ba18..0960388e 100644
--- a/Public/Developer/SystemLib/Sources/ApplicationStart.c
+++ b/Public/Developer/SystemLib/Sources/ApplicationStart.c
@@ -9,6 +9,6 @@
 /// @brief Inits the system library.
 /// @return if it was succesful or not.
 CA_EXTERN_C VoidType __start(VoidType) {
-  kSharedApplication = RtGetAppObject();
+  kSharedApplication = RtGetApp();
   CA_MUST_PASS(kSharedApplication);
 }
diff --git a/Public/Developer/SystemLib/Sources/File.c b/Public/Developer/SystemLib/Sources/File.c
new file mode 100644
index 00000000..1432e7e0
--- /dev/null
+++ b/Public/Developer/SystemLib/Sources/File.c
@@ -0,0 +1,38 @@
+/* -------------------------------------------
+
+    Copyright Mahrouss Logic
+
+------------------------------------------- */
+
+#include <Headers/Defines.h>
+#include <Headers/File.h>
+
+enum FileOp {
+    kFlushFile,
+    kReadFork,
+    kWriteFork,
+    kOpenFork,
+    kCloseFork,
+};
+
+/// @brief Opens a new file.
+/// @param path where to find it.
+/// @param r the restrict (rw, rwe, r+, w+, r, w)
+/// @return 
+CA_EXTERN_C FSRef FsOpenFile(const CharacterTypeUTF8* path, const CharacterTypeUTF8* r) {
+    CA_MUST_PASS(kSharedApplication);
+    CA_MUST_PASS(path);
+    CA_MUST_PASS(r);
+
+    return kSharedApplication->Invoke(kSharedApplication, kCallOpenFile, path, r);
+}
+
+/// @brief Closes the file and flushes it to the said file.
+/// @param refFs the filesystem reference.
+/// @return 
+CA_EXTERN_C VoidType FsCloseFile(FSRef refFs) {
+    CA_MUST_PASS(kSharedApplication);
+
+    kSharedApplication->Invoke(kSharedApplication, refFs, kFlushFile);
+    kSharedApplication->Invoke(kSharedApplication, kCallCloseFile, refFs);
+}
\ No newline at end of file
diff --git a/Public/Developer/SystemLib/Sources/Heap.c b/Public/Developer/SystemLib/Sources/Heap.c
index c866ef5d..041c5764 100644
--- a/Public/Developer/SystemLib/Sources/Heap.c
+++ b/Public/Developer/SystemLib/Sources/Heap.c
@@ -4,25 +4,27 @@
 
 ------------------------------------------- */
 
+#include <Headers/Defines.h>
 #include <Headers/Heap.h>
 
 /// @brief Allocate from the user's heap.
 /// @param sz size of object.
 /// @param flags flags.
 /// @return
-CA_EXTERN_C PtrVoidType RtTlsAllocate(QWordType sz,
-                                            DWordType flags) {
+CA_EXTERN_C PtrVoidType RtTlsAllocate(QWordType sz, DWordType flags) {
   CA_MUST_PASS(sz);
   CA_MUST_PASS(flags);
 
-  return (PtrVoidType)kSharedApplication->Invoke(kSharedApplication, kCallAllocPtr, sz, flags);
+  return (PtrVoidType)kSharedApplication->Invoke(kSharedApplication,
+                                                 kCallAllocPtr, sz, flags);
 }
 
 /// @brief Free pointer from the user's heap.
 /// @param ptr the pointer to free.
 CA_EXTERN_C VoidType RtTlsFree(PtrVoidType ptr) {
   CA_MUST_PASS(ptr);
-  CA_UNREFERENCED_PARAMETER(kSharedApplication->Invoke(kSharedApplication, kCallFreePtr, ptr));
+  CA_UNREFERENCED_PARAMETER(
+      kSharedApplication->Invoke(kSharedApplication, kCallFreePtr, ptr));
 }
 
 /// @brief Get pointer size.