#  Edit PROJ and OFILES for your project.
#  Edit BINDIR, LIBDIR, and INCDIR for your environment.

PROJ=main
LINKFILES=main.o gbaio.o gbamath.o
PROJFILES=main.o gbaio.o gbamath.o main.s gbaio.s gbamath.s

BINDIR=devkitARM/bin
LIBDIR=libgba/lib
INCDIR=libgba/include

CC=$(BINDIR)/arm-elf-gcc
OBJCOPY=$(BINDIR)/arm-elf-objcopy
GBAFIX=$(BINDIR)/gbafix

ARCH = -mthumb -mthumb-interwork
CFLAGS = -Wall -O1 -mcpu=arm7tdmi -fomit-frame-pointer -ffast-math $(ARCH) -I$(INCDIR)
LDFLAGS = $(ARCH) -L$(LIBDIR)

default: $(PROJ).gba

clean:
	@rm -fv *.o
	@rm -fv *.gba
	@rm -fv *.elf
    
%.o: %.c
	$(CC) $(CFLAGS) -c $< -o $@

%.s: %.c
	$(CC) $(CFLAGS) -S -c $< -o $@

%.o: %.s
	$(CC) $(CFLAGS) -x assembler-with-cpp -c $< -o $@

$(PROJ).elf: $(PROJFILES)
	$(CC) $(LDFLAGS) -specs=gba.specs $(LINKFILES) -lgba -o $(PROJ).elf

%.gba: %.elf
	$(OBJCOPY) -O binary $< $@
	$(GBAFIX) $@