First commit

Makefile

@@ -0,0 +1,42 @@
+AS = sdasz80
+CC = sdcc
+AR = sdar
+
+BUILD = .build
+
+TARGET = crt
+OPT = s
+
+CFLAGS = -mz80 -D__SDCC__ -Iinclude
+ASFLAGS = -plosgff
+
+SRC = \
+src/crt0.s \
+src/bios.s \
+src/random.s \
+src/console.c \
+
+OBJ_1 = $(notdir $(SRC:.c=.rel))
+OBJ_2 = $(notdir $(OBJ_1:.s=.rel))
+OBJ = $(addprefix $(BUILD)/, $(OBJ_2))
+vpath %.c $(sort $(dir $(SRC)))
+vpath %.s $(sort $(dir $(SRC)))
+
+.PHONY: all clean
+
+all: $(BUILD) $(BUILD)/$(TARGET).a
+
+$(BUILD)/%.rel: %.c Makefile | $(BUILD)
+	$(CC) -c $(CFLAGS) $< -o $@
+
+$(BUILD)/%.rel: %.s Makefile | $(BUILD)
+	$(AS) $(ASFLAGS) $@ $<
+
+$(BUILD)/$(TARGET).a: $(OBJ)
+	$(AR) rcs $@ $(OBJ)
+
+$(BUILD):
+	mkdir $@
+
+clean:
+	rm -fr $(BUILD)