diff --git a/src/info.cpp b/src/info.cpp
index 4d56875e38..0edcfea5e5 100644
--- a/src/info.cpp
+++ b/src/info.cpp
@@ -94,9 +94,9 @@ void FState::SetAction(PSymbolActionFunction *func, bool setdefaultparams)
 
 		// Create a function for this state.
 		VMScriptFunction *vmfunc = new VMScriptFunction;
-		VMOP *code = vmfunc->AllocCode(sizeof(codetemplate)/sizeof(VMOP));
-		memcpy(code, codetemplate, sizeof(codetemplate));
-		FVoidObj *konsta = vmfunc->AllocKonstA(2);
+		vmfunc->Alloc(sizeof(codetemplate)/sizeof(VMOP), 0, 0, 0, 2);
+		memcpy(vmfunc->Code, codetemplate, sizeof(codetemplate));
+		FVoidObj *konsta = vmfunc->KonstA;
 		VM_ATAG *atag = vmfunc->KonstATags();
 		konsta[0].v = (void *)func->Function;
 		konsta[1].o = callfunc;
diff --git a/src/thingdef/thingdef_exp.h b/src/thingdef/thingdef_exp.h
index bcf08f1750..99245d7609 100644
--- a/src/thingdef/thingdef_exp.h
+++ b/src/thingdef/thingdef_exp.h
@@ -342,10 +342,10 @@ public:
 		isresolved = true;
 	}
 
-	FxConstant(const char *str, const FScriptPosition &pos) : FxExpression(pos)
+	FxConstant(const FString &str, const FScriptPosition &pos) : FxExpression(pos)
 	{
 		ValueType = VAL_String;
-		value = ExpVal(FString(str));
+		value = ExpVal(str);
 		isresolved = true;
 	}
 
diff --git a/src/zscript/vm.h b/src/zscript/vm.h
index 16987ed72a..acb4a06885 100644
--- a/src/zscript/vm.h
+++ b/src/zscript/vm.h
@@ -719,11 +719,7 @@ public:
 	VMScriptFunction();
 	~VMScriptFunction();
 	size_t PropagateMark();
-	VMOP *AllocCode(int numops);
-	int *AllocKonstD(int numkonst);
-	double *AllocKonstF(int numkonst);
-	FString *AllocKonstS(int numkonst);
-	FVoidObj *AllocKonstA(int numkonst);
+	void Alloc(int numops, int numkonstd, int numkonstf, int numkonsts, int numkonsta);
 
 	VM_ATAG *KonstATags() { return (VM_UBYTE *)(KonstA + NumKonstA); }
 	const VM_ATAG *KonstATags() const { return (VM_UBYTE *)(KonstA + NumKonstA); }
diff --git a/src/zscript/vmbuilder.cpp b/src/zscript/vmbuilder.cpp
index b681c3d66b..60fe7817c2 100644
--- a/src/zscript/vmbuilder.cpp
+++ b/src/zscript/vmbuilder.cpp
@@ -38,26 +38,27 @@ VMScriptFunction *VMFunctionBuilder::MakeFunction()
 {
 	VMScriptFunction *func = new VMScriptFunction;
 
+	func->Alloc(Code.Size(), NumIntConstants, NumFloatConstants, NumStringConstants, NumAddressConstants);
+
 	// Copy code block.
-	memcpy(func->AllocCode(Code.Size()), &Code[0], Code.Size() * sizeof(VMOP));
+	memcpy(func->Code, &Code[0], Code.Size() * sizeof(VMOP));
 
 	// Create constant tables.
 	if (NumIntConstants > 0)
 	{
-		FillIntConstants(func->AllocKonstD(NumIntConstants));
+		FillIntConstants(func->KonstD);
 	}
 	if (NumFloatConstants > 0)
 	{
-		FillFloatConstants(func->AllocKonstF(NumFloatConstants));
+		FillFloatConstants(func->KonstF);
 	}
 	if (NumAddressConstants > 0)
 	{
-		func->AllocKonstA(NumAddressConstants);
 		FillAddressConstants(func->KonstA, func->KonstATags());
 	}
 	if (NumStringConstants > 0)
 	{
-		FillStringConstants(func->AllocKonstS(NumStringConstants));
+		FillStringConstants(func->KonstS);
 	}
 
 	// Assign required register space.
diff --git a/src/zscript/vmframe.cpp b/src/zscript/vmframe.cpp
index 0dce412c29..fdf2d42cc1 100644
--- a/src/zscript/vmframe.cpp
+++ b/src/zscript/vmframe.cpp
@@ -30,46 +30,79 @@ VMScriptFunction::VMScriptFunction()
 
 VMScriptFunction::~VMScriptFunction()
 {
-	if (Code != NULL)		M_Free(Code);
-	if (KonstD != NULL)		M_Free(KonstD);
-	if (KonstF != NULL)		M_Free(KonstF);
-	if (KonstS != NULL)		delete[] KonstS;
-	if (KonstA != NULL)		M_Free(KonstA);
+	if (Code != NULL)
+	{
+		if (KonstS != NULL)
+		{
+			for (int i = 0; i < NumKonstS; ++i)
+			{
+				KonstS[i].~FString();
+			}
+		}
+		M_Free(Code);
+	}
 }
 
-VMOP *VMScriptFunction::AllocCode(int numops)
+void VMScriptFunction::Alloc(int numops, int numkonstd, int numkonstf, int numkonsts, int numkonsta)
 {
-	assert(Code == NULL && numops > 0);
+	assert(Code == NULL);
+	assert(numops > 0);
+	assert(numkonstd >= 0 && numkonstd <= 255);
+	assert(numkonstf >= 0 && numkonstf <= 255);
+	assert(numkonsts >= 0 && numkonsts <= 255);
+	assert(numkonsta >= 0 && numkonsta <= 255);
+	void *mem = M_Malloc(numops * sizeof(VMOP) +
+						 numkonstd * sizeof(int) +
+						 numkonstf * sizeof(double) +
+						 numkonsts * sizeof(FString) +
+						 numkonsta * (sizeof(FVoidObj) + 1));
+	Code = (VMOP *)mem;
+	mem = (void *)((VMOP *)mem + numops);
+
+	if (numkonstd > 0)
+	{
+		KonstD = (int *)mem;
+		mem = (void *)((int *)mem + numkonstd);
+	}
+	else
+	{
+		KonstD = NULL;
+	}
+	if (numkonstf > 0)
+	{
+		KonstF = (double *)mem;
+		mem = (void *)((double *)mem + numkonstf);
+	}
+	else
+	{
+		KonstF = NULL;
+	}
+	if (numkonsts > 0)
+	{
+		KonstS = (FString *)mem;
+		for (int i = 0; i < numkonsts; ++i)
+		{
+			::new(&KonstS[i]) FString;
+		}
+		mem = (void *)((FString *)mem + numkonsts);
+	}
+	else
+	{
+		KonstS = NULL;
+	}
+	if (numkonsta > 0)
+	{
+		KonstA = (FVoidObj *)mem;
+	}
+	else
+	{
+		KonstA = NULL;
+	}
 	CodeSize = numops;
-	return Code = (VMOP *)M_Malloc(numops * sizeof(VMOP));
-}
-
-int *VMScriptFunction::AllocKonstD(int numkonst)
-{
-	assert(KonstD == NULL && numkonst > 0);
-	NumKonstD = numkonst;
-	return KonstD = (int *)M_Malloc(numkonst * sizeof(int));
-}
-
-double *VMScriptFunction::AllocKonstF(int numkonst)
-{
-	assert(KonstF == NULL && numkonst > 0);
-	NumKonstF = numkonst;
-	return KonstF = (double *)M_Malloc(numkonst * sizeof(double));
-}
-
-FString *VMScriptFunction::AllocKonstS(int numkonst)
-{
-	assert(KonstS == NULL && numkonst > 0);
-	NumKonstS = numkonst;
-	return KonstS = new FString[numkonst];
-}
-
-FVoidObj *VMScriptFunction::AllocKonstA(int numkonst)
-{
-	assert(KonstA == NULL && numkonst > 0);
-	NumKonstA = numkonst;
-	return KonstA = (FVoidObj *)M_Malloc(numkonst * sizeof(FVoidObj) + numkonst);
+	NumKonstD = numkonstd;
+	NumKonstF = numkonstf;
+	NumKonstS = numkonsts;
+	NumKonstA = numkonsta;
 }
 
 size_t VMScriptFunction::PropagateMark()