diff --git a/src/sourcemap/Wasm.ts b/src/sourcemap/Wasm.ts
index 9ced851..54e185e 100644
--- a/src/sourcemap/Wasm.ts
+++ b/src/sourcemap/Wasm.ts
@@ -34,6 +34,14 @@ export namespace WASM {
         return {value: n, type: Type.f32};
     }
 
+    export function f64(n: number): WASM.Value {
+        return {value: n, type: Type.f64};
+    }
+
+    export function i64(n: number): WASM.Value {
+        return {value: n, type: Type.i64};
+    }
+
     export interface Frame {
         type: number;
         fidx: string;