diff --git a/libsrc/runtime/Makefile b/libsrc/runtime/Makefile
index 134928393..d7bbe8a38 100644
--- a/libsrc/runtime/Makefile
+++ b/libsrc/runtime/Makefile
@@ -117,7 +117,8 @@ OBJS = 	add.o		\
        	ldec.o		\
        	ldiv.o		\
        	le.o		\
-       	leaasp.o	\
+       	leaa0sp.o 	\
+        leaaxsp.o       \
        	leave.o		\
        	leq.o		\
        	lge.o		\
diff --git a/libsrc/runtime/leaasp.s b/libsrc/runtime/leaa0sp.s
similarity index 100%
rename from libsrc/runtime/leaasp.s
rename to libsrc/runtime/leaa0sp.s
diff --git a/libsrc/runtime/leaaxsp.s b/libsrc/runtime/leaaxsp.s
new file mode 100644
index 000000000..79e3e1e4f
--- /dev/null
+++ b/libsrc/runtime/leaaxsp.s
@@ -0,0 +1,23 @@
+;
+; Ullrich von Bassewitz, 2009-08-31
+;
+; CC65 runtime: Load effective address with offset in A/X relative to SP
+;
+
+    	.export		leaaxsp
+     	.importzp	sp
+
+.proc	leaaxsp
+             
+        clc
+        adc     sp
+        pha
+        txa
+        adc     sp+1
+        tax
+        pla
+        rts
+
+.endproc
+
+