LOAD/SAVE preparation routines should be OK now

c64/kernal/iostack/f5dd.save_prep.s

@@ -0,0 +1,29 @@
+
+//
+// SAVE preparation routine
+//
+
+//
+// Input (according to http://sta.c64.org/cbm64krnfunc.html)
+// .A        - address of zero page register holding start address of memory area to save
+// .X and .Y - end address of memory area plus 1
+//
+
+//
+// Note: Experimenting can easily confirm that SAVE preparation routine does similar
+// actions as LOAD preparation routine.
+//
+
+SAVE_PREP:
+
+	sty EAL+1
+	stx EAL+0
+
+	tax
+
+	lda $01, x
+	sta STAL+1
+	lda $00, x
+	sta STAL+0
+
+    jmp (ISAVE)