AS=sdasz80
CC=sdcc
CPP=sdcpp

ASM=crt0.asm
SRC=crc16.c\
	bootloader.c

INCLUDE=../include
BUILD=../build/boot

OBJ=$(ASM:%.asm=$(BUILD)/%.rel)\
	$(SRC:%.c=$(BUILD)/%.rel)

IHX=$(BUILD)/bootloader.ihx
TARGET=$(BUILD)/bootloader.hex

CFLAGS=-mz80 -I$(INCLUDE) --Werror
LDFLAGS=-mz80 --no-std-crt0\
		--code-loc 0x8100\
		--data-loc 0xC000\
		--stack-loc 0x0000\
		-Wl-b_GSINIT=0x8080

all : $(TARGET)

$(OBJ): | $(BUILD)

$(BUILD) :
	@mkdir -p $(BUILD)

$(BUILD)/%.rel : %.asm
	@echo '  (AS)' $<
	@$(CPP) -P -I$(INCLUDE) -DASSEMBLY $< > $(BUILD)/$(notdir $<)
	@$(AS) -g -o $@ $(BUILD)/$(notdir $<)

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

$(IHX) : $(OBJ)
	@echo '  (LD)' $(OBJ)
	@$(CC) $(LDFLAGS) -o $@ $(OBJ)

$(TARGET) : $(IHX)
	@hex2bin.py $< $@

.PHONY : clean
clean :
	@find $(BUILD) -type f -delete