Initial test framework

Clean up makefiles
Everything buildable under docker (or natively)

test/example_1/rom/Makefile

@@ -0,0 +1,13 @@
+TOPDIR=../../../
+PROJECT:=$(shell basename ${PWD})
+SRCS=${PROJECT}.c ${TOPDIR}/apps/crt0.S
+all: all_common
+	# Convert ROM to C file and header
+	xxd -i ${PROJECT}.bin > ${PROJECT}-header.c
+	echo "extern unsigned char ${PROJECT}_bin[]; extern int ${PROJECT}_bin_len;" > ${PROJECT}-header.h
+
+test: test_common
+clean: clean_common
+	rm -f ${PROJECT}-header.h ${PROJECT}-header.c
+
+include ${TOPDIR}/apps/makefile.common

test/example_1/rom/rom.c

@@ -0,0 +1,6 @@
+#include "uvm32_target.h"
+
+void main(void) {
+    println("Hello world");
+}
+