1 files changed, 67 insertions, 0 deletions
diff --git a/src/Dolphin/os/__ppc_eabi_init.cpp b/src/Dolphin/os/__ppc_eabi_init.cpp
new file mode 100644
index 0000000..a0e7574
--- /dev/null
+++ b/src/Dolphin/os/__ppc_eabi_init.cpp
@@ -0,0 +1,67 @@
+// This file was taken from the Metroid Prime decompilation project.
+// https://github.com/PrimeDecomp/prime/blob/main/src/Dolphin/os/__ppc_eabi_init.cpp
+#include "dolphin/__ppc_eabi_init.h"
+#include "dolphin/PPCArch.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+void __OSPSInit();
+void __OSCacheInit();
+
+asm void __init_hardware(void) {
+	nofralloc
+	mfmsr r0
+	ori r0, r0, 0x2000
+	mtmsr r0
+
+	mflr r31
+	bl __OSPSInit
+	bl __OSCacheInit
+	mtlr r31
+	blr
+}
+
+asm void __flush_cache(register void* address, register unsigned int size) {
+	// clang-format off
+	nofralloc
+	lis r5,  ~0
+	ori r5, r5, ~14
+	and r5, r5, r3
+	subf r3, r5, r3
+	add r4, r4, r3
+
+loop:
+	dcbst r0, r5
+	sync
+	icbi r0, r5
+	addic r5, r5, 8
+	subic. r4, r4, 8
+	bge loop
+	isync
+	blr
+	// clang-format on
+}
+
+void __init_user() { __init_cpp(); }
+
+typedef void (*voidfunctionptr)(void); // pointer to function returning void
+__declspec(section ".init") extern voidfunctionptr _ctors[];
+__declspec(section ".init") extern voidfunctionptr _dtors[];
+
+void __init_cpp(void) {
+	voidfunctionptr* constructor;
+
+	/*
+	 *	call static initializers
+	 */
+	for (constructor = _ctors; *constructor; constructor++) {
+		(*constructor)();
+	}
+}
+
+void _ExitProcess(void) { PPCHalt(); }
+
+#ifdef __cplusplus
+}
+#endif