Add initial port of uip TCP/IP stack

uip/Makefile

@@ -0,0 +1,21 @@
+CC = sdcc
+CC_FLAGS = -mmcs51 -I. -I../hello-world
+ASM = sdas8051
+AFLAGS= -plosgff
+
+SRCS = psock.c  timer.c  uip_arp.c  uip.c  uip-fw.c  uiplib.c  uip-neighbor.c  uip-split.c
+OBJS = ${SRCS:.c=.rel}
+
+all: $(OBJS)
+
+%.rel: %.c
+	$(CC) $(CC_FLAGS) -c $<
+
+%.rel: %.asm
+	${ASM} ${AFLAGS} $^
+
+clean:
+	rm *.ihx *.lk *.lst *.map *.mem *.rel *.rst *.sym *.bin
+
+.PHONY: all clean
+