WARNFLAGS = -Wall -Wextra -pedantic -Wshadow -Wlogical-op
OPTFLAGS = -Os
ARCHFLAGS = -m68000
_CFLAGS = $(CFLAGS) $(WARNFLAGS) $(ARCHFLAGS) $(OPTFLAGS) -g3 -ffunction-sections -fdata-sections
LDSCRIPTS = m68k.ld _sram.ld _rom.ld
_LDFLAGS = $(LDFLAGS) $(OPTFLAGS) $(addprefix -T,$(LDSCRIPTS)) --gc-sections

OBJECTS=startup.o main.o

.PHONY: all
all: hellorom.bin

%.bin: %.elf Makefile
	m68k-none-elf-objcopy -O binary $< $@

hellorom.elf: $(OBJECTS) $(LDSCRIPTS) Makefile
	m68k-none-elf-ld -o $@ $(OBJECTS) $(_LDFLAGS)

OBJECTS: Makefile

%.o: %.c Makefile
	m68k-none-elf-gcc -m68000 -c $< -o $@ $(_CFLAGS)

clean:
	rm -rfv hellorom.elf hellorom.bin $(OBJECTS)