diff --git a/src/divasm/divasm.h b/src/divasm/divasm.h
new file mode 100644
index 000000000..2846c98f8
--- /dev/null
+++ b/src/divasm/divasm.h
@@ -0,0 +1,30 @@
+struct DivASMResult {
+  int line, err;
+  DivASMResult():
+    line(-1),
+    err(0) {}
+};
+
+struct DivASMFile {
+  String name;
+  SafeReader* data;
+};
+
+enum DivASMTarget {
+  DIV_ASM_TARGET_DUMMY=0,
+  DIV_ASM_TARGET_6502,
+  DIV_ASM_TARGET_SPC700
+};
+
+class DivASM {
+  std::vector<DivASMFile> files;
+  SafeWriter* result;
+
+  public:
+    DivASMResult getError();
+    SafeWriter* assemble(String name);
+    void addFile(String name, SafeReader* data);
+
+    DivASM(DivASMTarget target);
+    ~DivASM();
+};