diff --git a/Core/HLE/sceAtrac.cpp b/Core/HLE/sceAtrac.cpp
index 530bc4f66a..ad7d52f2fd 100644
--- a/Core/HLE/sceAtrac.cpp
+++ b/Core/HLE/sceAtrac.cpp
@@ -534,6 +534,18 @@ int _sceAtracGetContextAddress(int atracID)
 	return 0;
 }
 
+int sceAtracLowLevelInitDecoder(int atracID, u32 paramsAddr)
+{
+	ERROR_LOG_LIMITED(HLE, "UNIMPL sceAtracLowLevelInitDecoder(%i, %08x)", atracID, paramsAddr);
+	return 0;
+}
+
+int sceAtracLowLevelDecode(int atracID, u32 sourceAddr, u32 sourceBytesConsumedAddr, u32 samplesAddr, u32 sampleBytesAddr)
+{
+	ERROR_LOG_LIMITED(HLE, "UNIMPL sceAtracLowLevelDecode(%i, %i, %08x, %08x, %08x, %08x)", atracID, sourceAddr, sourceBytesConsumedAddr, samplesAddr, sampleBytesAddr);
+	return 0;
+}
+
 const HLEFunction sceAtrac3plus[] =
 {
 	{0x7db31251,WrapU_IU<sceAtracAddStreamData>,"sceAtracAddStreamData"},
@@ -572,6 +584,8 @@ const HLEFunction sceAtrac3plus[] =
 	{0x5622B7C1,WrapI_UIIU<sceAtracSetAA3DataAndGetID>,"sceAtracSetAA3DataAndGetID"},
 	{0x5DD66588,0,"sceAtracSetAA3HalfwayBufferAndGetID"},
 	{0x231FC6B7,WrapI_I<_sceAtracGetContextAddress>,"_sceAtracGetContextAddress"},
+	{0x1575D64B,WrapI_IU<sceAtracLowLevelInitDecoder>,"sceAtracLowLevelInitDecoder"},
+	{0x0C116E1B,WrapI_IUUUU<sceAtracLowLevelDecode>,"sceAtracLowLevelDecode"},
 };
 
 
diff --git a/Core/HLE/sceKernel.cpp b/Core/HLE/sceKernel.cpp
index c122f56524..e74464b129 100644
--- a/Core/HLE/sceKernel.cpp
+++ b/Core/HLE/sceKernel.cpp
@@ -601,6 +601,7 @@ const HLEFunction ThreadManForUser[] =
 
 	{0x94416130,WrapU_UUUU<sceKernelGetThreadmanIdList>,"sceKernelGetThreadmanIdList"},
 	{0x57CF62DD,WrapU_U<sceKernelGetThreadmanIdType>,"sceKernelGetThreadmanIdType"},
+	{0xBC80EC7C,WrapU_UUUU<sceKernelExtendThreadStack>, "sceKernelExtendThreadStack"},
 
 	{0x82BC5777,WrapU64_V<sceKernelGetSystemTimeWide>,"sceKernelGetSystemTimeWide"},
 	{0xdb738f35,WrapI_U<sceKernelGetSystemTime>,"sceKernelGetSystemTime"},
diff --git a/Core/HLE/sceKernelModule.cpp b/Core/HLE/sceKernelModule.cpp
index 9e5386f451..4290b1e554 100644
--- a/Core/HLE/sceKernelModule.cpp
+++ b/Core/HLE/sceKernelModule.cpp
@@ -881,6 +881,12 @@ u32 sceKernelUnloadModule(u32 moduleId)
 	return 0;
 }
 
+u32 sceKernelStopUnloadSelfModuleWithStatus(u32 moduleId, u32 argSize, u32 argp, u32 statusAddr, u32 optionAddr)
+{
+	ERROR_LOG(HLE,"UNIMPL sceKernelStopUnloadSelfModuleWithStatus(%08x, %08x, %08x, %08x, %08x,)", moduleId, argSize, argp, statusAddr, optionAddr);
+	return 0;
+}
+
 u32 sceKernelGetModuleIdByAddress(u32 moduleAddr)
 {
 	ERROR_LOG(HLE,"HACKIMPL sceKernelGetModuleIdByAddress(%08x)", PARAM(0));
@@ -1002,7 +1008,7 @@ const HLEFunction ModuleMgrForUser[] =
 	{0x748CBED9,WrapU_UU<sceKernelQueryModuleInfo>,"sceKernelQueryModuleInfo"},
 	{0xd8b73127,&WrapU_U<sceKernelGetModuleIdByAddress>, "sceKernelGetModuleIdByAddress"},
 	{0xf0a26395,WrapU_V<sceKernelGetModuleId>, "sceKernelGetModuleId"},
-	{0x8f2df740,0,"sceKernelStopUnloadSelfModuleWithStatus"},
+	{0x8f2df740,WrapU_UUUUU<sceKernelStopUnloadSelfModuleWithStatus>,"sceKernelStopUnloadSelfModuleWithStatus"},
 	{0xfef27dc1,&WrapU_CU<sceKernelLoadModuleDNAS> , "sceKernelLoadModuleDNAS"},
 };
 
diff --git a/Core/HLE/sceKernelThread.cpp b/Core/HLE/sceKernelThread.cpp
index d2fb9ec04e..c31eab4350 100644
--- a/Core/HLE/sceKernelThread.cpp
+++ b/Core/HLE/sceKernelThread.cpp
@@ -2074,6 +2074,12 @@ void sceKernelGetCallbackCount()
 	}
 }
 
+u32 sceKernelExtendThreadStack(u32 cpu, u32 size, u32 entryAddr, u32 entryParameter)
+{
+	ERROR_LOG(HLE,"UNIMPL sceKernelExtendThreadStack(%08x, %08x, %08x, %08x)", cpu, size, entryAddr, entryParameter);
+	return 0;
+}
+
 void sceKernelReferCallbackStatus()
 {
 	SceUID cbId = PARAM(0);
diff --git a/Core/HLE/sceKernelThread.h b/Core/HLE/sceKernelThread.h
index 74bb71d828..86a158b5a4 100644
--- a/Core/HLE/sceKernelThread.h
+++ b/Core/HLE/sceKernelThread.h
@@ -58,6 +58,7 @@ int sceKernelWaitThreadEndCB(SceUID threadID, u32 timeoutPtr);
 void sceKernelGetThreadExitStatus();
 u32 sceKernelGetThreadmanIdType(u32);
 u32 sceKernelGetThreadmanIdList(u32 type, u32 readBufPtr, u32 readBufSize, u32 idCountPtr);
+u32 sceKernelExtendThreadStack(u32 cpu, u32 size, u32 entryAddr, u32 entryParameter);
 
 struct SceKernelSysClock {
 	u32 lo;