HAL/PPC: Adding support for PowerPC, implemented rt_do_context_switch.

Refactor: Everything which starts with HCORE_ is NEWOS_ now.

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

7 files changed, 56 insertions, 47 deletions

diff --git a/Private/HALKit/PowerPC/APM/.gitkeep b/Private/HALKit/PowerPC/APM/.gitkeep
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/Private/HALKit/PowerPC/APM/.gitkeep
diff --git a/Private/HALKit/PowerPC/HalCoreContextSwitchPowerPC.s b/Private/HALKit/PowerPC/HalCoreContextSwitchPowerPC.s
index a6c2a90f..9cbcb4f8 100644
--- a/Private/HALKit/PowerPC/HalCoreContextSwitchPowerPC.s
+++ b/Private/HALKit/PowerPC/HalCoreContextSwitchPowerPC.s
@@ -12,6 +12,17 @@
 /* r3 = assigner stack, r4 = assignee stack */
 rt_do_context_switch:
 
-    lwz %r4, 0(%r3)
+    lwz 0(%r4), 0(%r3)
+    lwz 4(%r4), 4(%r3)
+    lwz 8(%r4), 8(%r3)
+    lwz 12(%r4), 12(%r3)
+    lwz 14(%r4), 14(%r3)
+    lwz 18(%r4), 18(%r3)
+    lwz 22(%r4), 22(%r3)
+    lwz 24(%r4), 24(%r3)
+    lwz 28(%r4), 28(%r3)
+    lwz 32(%r4), 32(%r3)
+    lwz 34(%r4), 34(%r3)
+    lwz 38(%r4), 38(%r3)
 
-    blr
+    bl
diff --git a/Private/HALKit/PowerPC/HalCoreSyscallHandlerPowerPC.cpp b/Private/HALKit/PowerPC/HalCoreSyscallHandlerPowerPC.cpp
deleted file mode 100644
index 322cb604..00000000
--- a/Private/HALKit/PowerPC/HalCoreSyscallHandlerPowerPC.cpp
+++ /dev/null
@@ -1,18 +0,0 @@
-/* -------------------------------------------
-
-    Copyright Mahrouss Logic
-
-------------------------------------------- */
-
-#include <ArchKit/ArchKit.hpp>
-#include <NewKit/Array.hpp>
-
-NewOS::Array<void (*)(NewOS::Int32 id, NewOS::HAL::StackFrame *),
-             kKernelMaxSystemCalls>
-    kSyscalls;
-
-extern "C" void rt_syscall_handle(NewOS::HAL::StackFrame *stack) {
-  for (NewOS::SizeT index = 0UL; index < kKernelMaxSystemCalls; ++index) {
-    (kSyscalls[index].Leak().Leak())(stack->ID, stack);
-  }
-}
diff --git a/Private/HALKit/PowerPC/HalHardware.cxx b/Private/HALKit/PowerPC/HalHardware.cxx
index 96f0a433..5d09805d 100644
--- a/Private/HALKit/PowerPC/HalHardware.cxx
+++ b/Private/HALKit/PowerPC/HalHardware.cxx
@@ -11,24 +11,4 @@ namespace NewOS {
 namespace HAL {
 UIntPtr hal_alloc_page(bool rw, bool user) { return 0; }
 }  // namespace HAL
-
-/// @brief wakes up thread.
-/// wakes up thread from hang.
-void rt_wakeup_thread(HAL::StackFrame* stack) {}
-
-/// @brief makes thread sleep.
-/// hooks and hangs thread to prevent code from executing.
-void rt_hang_thread(HAL::StackFrame* stack) {}
-
-void ke_com_print(const Char* bytes) {
-  if (!bytes) return;
-
-  SizeT index = 0;
-  SizeT len = rt_string_len(bytes, 256);
-
-  while (index < len) {
-    // TODO
-    ++index;
-  }
-}
 }  // namespace NewOS
diff --git a/Private/HALKit/PowerPC/HalSMPManager.cxx b/Private/HALKit/PowerPC/HalSMPManager.cxx
new file mode 100644
index 00000000..26ebc399
--- /dev/null
+++ b/Private/HALKit/PowerPC/HalSMPManager.cxx
@@ -0,0 +1,18 @@
+/* -------------------------------------------
+
+    Copyright Mahrouss Logic
+
+------------------------------------------- */
+
+#include <HALKit/PowerPC/Processor.hpp>
+#include <KernelKit/DebugOutput.hpp>
+
+using namespace NewOS;
+
+/// @brief wakes up thread.
+/// wakes up thread from hang.
+void rt_wakeup_thread(HAL::StackFramePtr stack) {}
+
+/// @brief makes thread sleep.
+/// hooks and hangs thread to prevent code from executing.
+void rt_hang_thread(HAL::StackFramePtr stack) {}
\ No newline at end of file
diff --git a/Private/HALKit/PowerPC/HalSerialPort.cxx b/Private/HALKit/PowerPC/HalSerialPort.cxx
new file mode 100644
index 00000000..36878b61
--- /dev/null
+++ b/Private/HALKit/PowerPC/HalSerialPort.cxx
@@ -0,0 +1,24 @@
+/* -------------------------------------------
+
+    Copyright Mahrouss Logic
+
+------------------------------------------- */
+
+#include <HALKit/PowerPC/Processor.hpp>
+#include <KernelKit/DebugOutput.hpp>
+
+using namespace NewOS;
+
+/// @brief Writes to COM1.
+/// @param bytes 
+void ke_io_write(const Char* bytes) {
+  if (!bytes) return;
+
+  SizeT index = 0;
+  SizeT len = rt_string_len(bytes, 256);
+
+  while (index < len) {
+    // TODO
+    ++index;
+  }
+}
\ No newline at end of file
diff --git a/Private/HALKit/PowerPC/Processor.hpp b/Private/HALKit/PowerPC/Processor.hpp
index 36731d57..19f8e799 100644
--- a/Private/HALKit/PowerPC/Processor.hpp
+++ b/Private/HALKit/PowerPC/Processor.hpp
@@ -17,8 +17,6 @@ namespace NewOS::HAL {
 typedef UIntPtr Reg;
 
 struct __PPC_ALIGN StackFrame {
-  Reg IntNum;
-  Reg Exception;
   Reg R0;
   Reg R1;
   Reg R2;
@@ -28,12 +26,8 @@ struct __PPC_ALIGN StackFrame {
   Reg R6;
   Reg R7;
   Reg R8;
-  Reg ProgramCounter;
-  Reg StackPointer;
-  /// @brief Process Context
   Reg PC;
-  /// @brief General Context 
-  Reg GC;
+  Reg SP;
 };
 
 typedef StackFrame* StackFramePtr;