diff --git a/oscar64/InterCode.cpp b/oscar64/InterCode.cpp
index 81da526..9ca1c44 100644
--- a/oscar64/InterCode.cpp
+++ b/oscar64/InterCode.cpp
@@ -2397,7 +2397,10 @@ bool InterInstruction::RemoveUnusedResultInstructions(InterInstruction* pre, Num
 	{
 		if (!requiredTemps[mDst.mTemp] && mDst.mTemp >= 0)
 		{
-			if (!HasSideEffect(mCode))
+			if (mCode == IC_LOAD && mVolatile)
+			{
+			}
+			else if (!HasSideEffect(mCode))
 			{
 				mCode = IC_NONE;
 				mDst.mTemp = -1;
diff --git a/oscar64/NativeCodeGenerator.cpp b/oscar64/NativeCodeGenerator.cpp
index c9c9654..43110af 100644
--- a/oscar64/NativeCodeGenerator.cpp
+++ b/oscar64/NativeCodeGenerator.cpp
@@ -11996,6 +11996,9 @@ bool NativeCodeBasicBlock::MoveAbsoluteLoadStoreUp(int at)
 		if (mIns[at + 1].mMode == ASMIM_ABSOLUTE_Y && mIns[j].ChangesYReg())
 			return false;
 
+		if (mIns[j].mType == ASMIT_JSR)
+			return false;
+
 		j--;
 	}