AS = sdasz80
CC = sdcc
AR = sdar
LD = sdldz80
OBJCOPY = sdobjcopy

BUILD = .build

TARGET = tetris
OPT = s

CFLAGS = -mz80 -D__SDCC__ -Iinclude -I../crt/include
ASFLAGS = -plosff

SRC = \
src/main.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).com

$(BUILD)/%.rel: %.c Makefile | $(BUILD)
	$(CC) -c $(CFLAGS) $< -o $@

$(BUILD)/%.rel: %.s Makefile | $(BUILD)
	$(AS) $(ASFLAGS) $@ $<

$(BUILD)/$(TARGET).ihx: ../crt/.build/crt.a $(OBJ)
	$(LD) -i $@ ../crt/.build/crt.a $(OBJ)

%.com: %.ihx
	$(OBJCOPY) -I ihex -O binary $< $@

$(BUILD):
	mkdir $@

clean:
	rm -fr $(BUILD)