Added some quality of life changes to the Makefile.

Makefile

@@ -17,9 +17,11 @@ run: kernel.iso
 	bochs -f support_files/boch.txt -q
 
 $(OBJ)/%.o: $(SRC)/%.c
+	mkdir -p obj/bin
 	$(CC) $(GCCPARAMS) $(SRC) -c -o $@ $<
 
 $(OBJ)/%.o: $(SRC)/%.s
+	mkdir -p obj/bin
 	nasm $(ASPARAMS) -o $@ $<
 	
 kernel.o: build_numbers.c $(OBJECTS) $(ASMOBJECTS)
@@ -32,10 +34,11 @@ kernel.iso: kernel.o
 qemu: kernel.iso
 	qemu-system-x86_64 -serial stdio -m 256M -cdrom kernel.iso
 
-.PHONY: clean
-clean:
-	rm -rf obj/* kernel.iso
-
 .PHONY: resetbuild
 resetbuild:
 	@sh support_files/handle_build_numbers.sh build_numbers.c reset
+	
+.PHONY: clean
+clean:
+	rm obj/*.o
+	rm obj/bin/*.o