add msbasic

msbasic/loadsave.s

@@ -0,0 +1,17 @@
+.segment "CODE"
+
+.ifdef APPLE
+.include "apple_loadsave.s"
+.endif
+.ifdef KIM
+.include "kim_loadsave.s"
+.endif
+.ifdef MICROTAN
+.include "microtan_loadsave.s"
+.endif
+.ifdef AIM65
+.include "aim65_loadsave.s"
+.endif
+.ifdef SYM1
+.include "sym1_loadsave.s"
+.endif