make atari testcode compile again, added makefile

testcode/lib/atari/Makefile

@@ -0,0 +1,32 @@
+
+all: charmapping.xex defdev.xex displaylist.xex mem.xex multi.xex ostype.xex \
+	scrcode.com sys.xex
+
+charmapping.xex: charmapping.c
+	cl65 -t atari -o charmapping.xex charmapping.c
+defdev.xex: defdev.c
+	cl65 -t atari -o defdev.xex defdev.c
+displaylist.xex: displaylist.c
+	cl65 -t atari -o displaylist.xex displaylist.c
+mem.xex: mem.c ../getsp.s
+	cl65 -t atari -o mem.xex mem.c ../getsp.s
+multi.xex: multi-xex.s multi-xex.cfg
+	cl65 -t atari -C multi-xex.cfg multi-xex.s -o multi.xex
+ostype.xex: ostype.c
+	cl65 -t atari -o ostype.xex ostype.c
+scrcode.com: scrcode.s
+	ca65 -t atari -o scrcode.o scrcode.s
+	ld65 -C atari-asm.cfg -o scrcode.com scrcode.o
+sys.xex: sys.c
+	cl65 -t atari -o sys.xex sys.c
+
+clean:
+	$(RM) charmapping.xex
+	$(RM) defdev.xex
+	$(RM) displaylist.xex
+	$(RM) mem.xex
+	$(RM) multi.xex
+	$(RM) ostype.xex
+	$(RM) scrcode.o
+	$(RM) scrcode.com
+	$(RM) sys.xex