Add color output.

Makefile

@@ -1,6 +1,11 @@
 PORT := 1234
 CHECK := diff -q
 MKDIR_P := mkdir -p
+ECHO := echo -e
+NC := \033[0m
+RED := \033[0;31m
+GREEN := \033[0;32m
+YELLOW := \033[1;33m
 
 CC := lcc
 CFLAGS := -nostdlib
@@ -25,30 +30,46 @@ executables := $(addprefix build/,$(tests))
 logs := $(addprefix build/,$(addsuffix .log,$(tests)))
 checks := $(addprefix check-,$(tests))
 
-.PHONY: all logs test mkdirs clean clean-logs $(checks)
+.PHONY: all build logs test gen-test mkdirs clean clean-logs $(checks)
 
 all: logs
 
+build: mkdirs $(executables)
+
 logs: mkdirs $(logs)
 
+gen-test: clean-logs logs test
+
 test: mkdirs $(checks)
 
 mkdirs:
-	$(MKDIR_P) build
+	@$(MKDIR_P) build
 
 clean: clean-logs
-	$(RM) $(executables)
+	@$(RM) $(executables)
 
 clean-logs:
-	$(RM) $(logs)
+	@$(RM) $(logs)
 
 $(executables): build/%: src/%.s
-	$(CC) $(CFLAGS) -o $@ $<
+	@$(ECHO) "  $(GREEN)build $(NC)$*"
+	@$(CC) $(CFLAGS) -o $@ $<
 
 $(logs): build/%.log: build/% src/%.gdb
-	$(GDB_SERVER) $(GDB_SERVER_ARGS) $< &
-	$(GDB) $(GDB_ARGS) -ex 'file $<' $(GDB_BPS) \
+	@$(ECHO) "    $(GREEN)gen $(NC)$*.log"
+	@$(GDB_SERVER) $(GDB_SERVER_ARGS) $< &> /dev/null &
+	@$(GDB) $(GDB_ARGS) -ex 'file $<' $(GDB_BPS) \
 		-ex 'target remote :$(PORT)' -x src/$*.gdb > $@
 
+.ONESHELL:
 $(checks): check-%: build/%.log src/%.log
-	$(CHECK) $^
+	@$(ECHO) -n "  $(GREEN)check $(NC)$*"
+	$(CHECK) $^ &> /dev/null
+	if [ $$? -eq 0 ]
+	then
+		$(ECHO) " $(GREEN)OK!$(NC)"
+		true
+	else
+		$(ECHO) " $(RED)FAIL!$(NC)"
+		false
+	fi