diff --git a/Utilities/BEType.h b/Utilities/BEType.h
index f46daeceb7..a261146e8c 100644
--- a/Utilities/BEType.h
+++ b/Utilities/BEType.h
@@ -1,5 +1,7 @@
 #pragma once
 
+#include <emmintrin.h>
+
 union u128
 {
 	struct
@@ -18,6 +20,7 @@ union u128
 	s8  _s8[16];
 	float _f[4];
 	double _d[2];
+	__m128 xmm;
 
 	class bit_array_128
 	{
diff --git a/rpcs3/Emu/SysCalls/Modules/sysPrxForUser.cpp b/rpcs3/Emu/SysCalls/Modules/sysPrxForUser.cpp
index 8d60f9f996..2a9835a27c 100644
--- a/rpcs3/Emu/SysCalls/Modules/sysPrxForUser.cpp
+++ b/rpcs3/Emu/SysCalls/Modules/sysPrxForUser.cpp
@@ -52,11 +52,9 @@ u32 _sys_heap_memalign(u32 heap_id, u32 align, u32 size)
 	return (u32)Memory.Alloc(size, align);
 }
 
-u128 sys_initialize_tls(u128 arg)
+void sys_initialize_tls()
 {
 	sysPrxForUser->Log("sys_initialize_tls()");
-
-	return arg;
 }
 
 s64 _sys_process_atexitspawn()
@@ -76,7 +74,7 @@ int sys_process_is_stack(u32 p)
 	sysPrxForUser->Log("sys_process_is_stack(p=0x%x)", p);
 
 	// prx: compare high 4 bits with "0xD"
-	return (int)(bool)(p >= Memory.StackMem.GetStartAddr() && p <= Memory.StackMem.GetEndAddr());
+	return (p >= Memory.StackMem.GetStartAddr() && p <= Memory.StackMem.GetEndAddr()) ? 1 : 0;
 }
 
 s64 sys_prx_exitspawn_with_level()