csrc = $(wildcard src/*.c) $(wildcard src/libc/*.c)
asrc = $(wildcard src/*.s)
aSsrc = $(wildcard src/*.S)
obj = $(asrc:.s=.o) $(aSsrc:.S=.o) $(csrc:.c=.o)
dep = $(csrc:.c=.d)

z80src = $(wildcard src/z80/*.asm)
z80obj = $(z80src:.asm=.z80)
z80bin = z80.bin

name = life
elf = $(name).elf
bin = $(name).bin

warn = -pedantic -Wall
dbg = -g
opt = -O2
def = -D__NO_CTYPE
inc = -I. -Isrc -Isrc/libc

TC = m68k-linux-gnu-

CC = $(TC)gcc
AS = $(TC)as
LD = $(TC)ld
OBJCOPY = $(TC)objcopy

CFLAGS = -m68000 -ffreestanding -fno-builtin -fcommon $(warn) $(dbg) $(opt) $(def) $(inc) -MMD
CPPFLAGS = $(def)
ASFLAGS = -m68000 $(inc)
LDFLAGS = -T megadrive.ld -print-gc-sections \
		  -L/usr/lib/gcc-cross/m68k-linux-gnu/11 -lgcc

Z80AS = vasmz80_oldstyle
Z80ASFLAGS = -Fvobj
Z80LD = vlink
Z80LDFLAGS = -T z80.ld -b rawbin1


$(bin): $(elf)
	$(OBJCOPY) -O binary $< $@

$(elf): $(obj)
	$(LD) -o $@ $(obj) -Map link.map $(LDFLAGS)

$(z80bin): $(z80obj)
	$(Z80LD) -o $@ $(Z80LDFLAGS) $(z80obj)

src/z80prog.o: src/z80prog.s $(z80bin)

-include $(dep)

%.z80: %.asm
	$(Z80AS) -o $@ $(Z80ASFLAGS) $< >/dev/null

.PHONY: clean
clean:
	rm -f $(obj) $(elf) $(bin)
	rm -f $(z80obj) $(z80bin)

.PHONY: cleandep
cleandep:
	rm -f $(dep)

.PHONY: run
run: $(bin)
	mednafen $<

.PHONY: copy
copy: $(bin)
	mount /media/usbmass && cp $(bin) /media/usbmass/$(bin)
	umount /media/usbmass

.PHONY: install
install: $(bin)
	mount /media/usbmass
	[ -f /media/usbmass/MEGA/MEGA.RBF ] || cp $(bin) /media/usbmass/MEGA/MEGA.BIN
	umount /media/usbmass