Reworked unit tests for machine and renamed test_programs directory

test/Makefile.tests

@@ -0,0 +1,38 @@
+include $(TOPDIR)/Makefile.config
+USERLIB = $(TOPDIR)/userlib
+INCPATH += -I$(TOPDIR) -I$(USERLIB)
+LDFLAGS = $(RISCV_LDFLAGS) -T $(USERLIB)/ldscript.lds
+ASFLAGS = $(RISCV_ASFLAGS) $(INCPATH)
+CFLAGS  = $(RISCV_CFLAGS) $(INCPATH)
+
+# Rules
+%.o: %.s
+	$(RISCV_AS) $(ASFLAGS) -c $<
+
+%.o: %.c
+	$(RISCV_GCC) $(CFLAGS) -c $<
+
+%.dump: %.o
+	$(RISCV_OBJCOPY) -j .text -O $(DUMP_FORMAT) $< $@
+
+%.guac: %.o
+	$(RISCV_LD) $(LDFLAGS) $+ -o $@
+
+# Dependencies
+.%.d: %.s
+	@echo Generating dependencies for $<
+	@$(SHELL) -ec '$(GCC) -x assembler-with-cpp -M $(ASFLAGS) $< \
+		| sed '\''s/\($*\)\.o[ :]*/\1.o $@ : /g'\'' > $@; \
+		[ -s $@ ] || rm -f $@'
+
+.%.d: %.c
+	@echo Generating dependencies for $<
+	@$(SHELL) -ec '$(GCC) -M $(CFLAGS) $< \
+		| sed '\''s/\($*\)\.o[ :]*/\1.o $@ : /g'\'' > $@; \
+		[ -s $@ ] || rm -f $@'
+
+# Targets
+#clean:
+#	rm -rf *.o 2> /dev/null
+#	rm -rf *.dump 2> /dev/null
+#	rm -rf *.guac 2> /dev/null