GCC = nspire-gcc
AS = nspire-as
LD = nspire-ld
GCCFLAGS = -Os -Wall -W -marm
GASFLAGS = -marm -W -Wall
LDFLAGS = 
OBJCOPY := "$(shell which arm-elf-objcopy 2>/dev/null)"
ifeq (${OBJCOPY},"")
	OBJCOPY := arm-none-eabi-objcopy
endif
EXE = pwmtest.tns
OBJS = $(patsubst %.c,%.o,$(wildcard *.c))
ASOBJS = $(patsubst %.S,%.os,$(wildcard *.S))
DISTDIR = .
vpath %.tns $(DISTDIR)

all: $(EXE)

%.o: %.c
	$(GCC) $(GCCFLAGS) -c $<
	
%.os: %.S
	$(AS) $(GASFLAGS) -c $< -o $@

$(EXE): $(OBJS) $(ASOBJS)
	$(LD) $^ -o $(@:.tns=.elf) $(LDFLAGS)
	mkdir -p $(DISTDIR)
	$(OBJCOPY) -O binary $(@:.tns=.elf) $(DISTDIR)/$@

clean:
	rm -f *.o *.elf *.os
	rm -rf *.c~ *.S~ *.h~
	rm -f $(DISTDIR)/$(EXE)