4 files changed, 143 insertions, 0 deletions
diff --git a/SDK/Developer/CoreSystem/Sources/App.c b/SDK/Developer/CoreSystem/Sources/App.c
new file mode 100644
index 00000000..7778c064
--- /dev/null
+++ b/SDK/Developer/CoreSystem/Sources/App.c
@@ -0,0 +1,31 @@
+/* -------------------------------------------
+
+    Copyright Mahrouss Logic
+
+------------------------------------------- */
+
+#include <Headers/Defines.h>
+
+/// @brief Main Application object, retrieved from the RtGetAppPointer symbol.
+ApplicationInterfaceRef kSharedApplication = NullPtr;
+
+/// @brief Gets the app arguments count.
+/// @param void no arguments.
+/// @return The number of arguments given to the application.
+CA_EXTERN_C SizeType RtGetAppArgumentsCount(VoidType)
+{
+	CA_MUST_PASS(kSharedApplication);
+
+	return kSharedApplication->Invoke(kSharedApplication, kCallGetArgsCount);
+}
+
+/// @brief Gets the app arguments pointer.
+/// @param void no arguments.
+/// @return
+CA_EXTERN_C CharacterTypeUTF8** RtGetAppArgumentsPtr(VoidType)
+{
+	CA_MUST_PASS(kSharedApplication);
+
+	return (CharacterTypeUTF8**)kSharedApplication->Invoke(kSharedApplication,
+														   kCallGetArgsPtr);
+}
diff --git a/SDK/Developer/CoreSystem/Sources/File.c b/SDK/Developer/CoreSystem/Sources/File.c
new file mode 100644
index 00000000..40cbd515
--- /dev/null
+++ b/SDK/Developer/CoreSystem/Sources/File.c
@@ -0,0 +1,43 @@
+/* -------------------------------------------
+
+    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 rest the restrict (rw, rwe, r+, w+, r, w)
+/// @return FSRef the file.
+CA_EXTERN_C FSRef FsOpenFile(const CharacterTypeUTF8* path,
+							 const CharacterTypeUTF8* rest)
+{
+	CA_MUST_PASS(kSharedApplication);
+	CA_MUST_PASS(path && FsIsValidPath(path) == Yes);
+	CA_MUST_PASS(rest);
+
+	return kSharedApplication->Invoke(kSharedApplication, kCallOpenFile, path,
+									  rest);
+}
+
+/// @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);
+}
diff --git a/SDK/Developer/CoreSystem/Sources/Heap.c b/SDK/Developer/CoreSystem/Sources/Heap.c
new file mode 100644
index 00000000..6c5e381e
--- /dev/null
+++ b/SDK/Developer/CoreSystem/Sources/Heap.c
@@ -0,0 +1,55 @@
+/* -------------------------------------------
+
+    Copyright Mahrouss Logic
+
+------------------------------------------- */
+
+#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_MUST_PASS(kSharedApplication);
+	CA_MUST_PASS(sz);
+	CA_MUST_PASS(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(kSharedApplication);
+	CA_MUST_PASS(ptr);
+
+	CA_UNREFERENCED_PARAMETER(
+		kSharedApplication->Invoke(kSharedApplication, kCallFreePtr, ptr));
+}
+
+/// @brief Get pointer size.
+/// @param ptr the pointer to find.
+/// @return the size.
+CA_EXTERN_C QWordType RtTlsGetSize(PtrVoidType ptr)
+{
+	CA_MUST_PASS(kSharedApplication);
+
+	CA_MUST_PASS(ptr);
+	return kSharedApplication->Invoke(kSharedApplication, kCallSizePtr, ptr);
+}
+
+/// @brief Check if the pointer exists.
+/// @param ptr the pointer to check.
+/// @return if it exists
+CA_EXTERN_C BooleanType RtTlsPtrExists(PtrVoidType ptr)
+{
+	CA_MUST_PASS(kSharedApplication);
+
+	CA_MUST_PASS(ptr);
+	return kSharedApplication->Invoke(kSharedApplication, kCallCheckPtr, ptr);
+}
diff --git a/SDK/Developer/CoreSystem/Sources/Math.c b/SDK/Developer/CoreSystem/Sources/Math.c
new file mode 100644
index 00000000..6797166a
--- /dev/null
+++ b/SDK/Developer/CoreSystem/Sources/Math.c
@@ -0,0 +1,14 @@
+/* -------------------------------------------
+
+    Copyright Mahrouss Logic
+
+------------------------------------------- */
+
+#include <Headers/Math.h>
+
+/// @brief Number generator helper.
+/// @return Random generated number.
+CA_EXTERN_C SizeType MathRand(VoidType)
+{
+	return kSharedApplication->Invoke(kSharedApplication, kCallRandomNumberGenerator);
+}
+\ No newline at end of file