diff --git a/dka-rules/base_rules b/dka-rules/base_rules
index 0a38afc..ffa6bf4 100644
--- a/dka-rules/base_rules
+++ b/dka-rules/base_rules
@@ -1,3 +1,8 @@
+#---------------------------------------------------------------------------------
+# path to tools - this can be deleted if you set the path in windows
+#---------------------------------------------------------------------------------
+export PATH		:=	$(DEVKITARM)/bin:$(PATH)
+
 #---------------------------------------------------------------------------------
 # the prefix on the compiler executables
 #---------------------------------------------------------------------------------
diff --git a/dka-rules/ds_rules b/dka-rules/ds_rules
index 96e8f00..f6ea414 100644
--- a/dka-rules/ds_rules
+++ b/dka-rules/ds_rules
@@ -2,3 +2,22 @@
 
 LIBNDS	:=	$(DEVKITPRO)/libnds
 
+#---------------------------------------------------------------------------------
+%.ds.gba: %.nds
+	@dsbuild $<
+	@echo built ... $(notdir $@)
+
+#---------------------------------------------------------------------------------
+%.nds: %.bin
+	@ndstool -c $@ -9 $<
+	@echo built ... $(notdir $@)
+
+#---------------------------------------------------------------------------------
+%.bin: %.elf
+	@$(OBJCOPY) -O binary $< $@
+	@echo built ... $(notdir $@)
+ 
+#---------------------------------------------------------------------------------
+%.elf:
+	@echo linking binary
+	@$(LD)  $(LDFLAGS) $(OFILES) $(LIBPATHS) $(LIBS) -o $@