# muchly stolen from m68hc1x's example.tar.gz's Makefile

OBJS = \
	motors.o keypad.o display_basic.o coinmech.o chime.o \
	helpers.o main_basic.o sci.o \
	vectors.o start.o romsrc.o xmodem.o mic.o
INCLUDES = vend.h keypad.h chime.h asm.h display_basic.h ports.h types.h version.h
# debugging doesn't get compiled into the ROM image
CFLAGS = -m68hc11 -mshort -Wall -O1 \
	-msoft-reg-count=0 -ffixed-z -g -fomit-frame-pointer

LDFLAGS = -m68hc11 -mshort -Wl,-m,m68hc11elfb \
	  -nostartfiles \
	  -Wl,-defsym,_nvram=0x0800 \
	  -Wl,-defsym,_io_ports=0x1000 \
	  -Wl,-defsym,_switch_input=0x1800 \
	  -Wl,-defsym,_misc_input=0x2000 \
	  -Wl,-defsym,_home_sensors=0x2800 \
	  -Wl,-defsym,_changer_output=0x3000 \
	  -Wl,-defsym,_misc_output=0x3800 \
	  -Wl,-defsym,_uart_regs=0x4000

OBJCOPY_FLAGS=--only-section=.text \
              --only-section=.rodata \
              --only-section=.vectors \
              --only-section=.data


DEVC_PREFIX = m68hc11-
CC = $(DEVC_PREFIX)gcc
AS = $(DEVC_PREFIX)as
AR = $(DEVC_PREFIX)ar
SIZE = $(DEVC_PREFIX)size
OBJCOPY = $(DEVC_PREFIX)objcopy
OBJDUMP = $(DEVC_PREFIX)objdump
LD = $(DEVC_PREFIX)ld

all: rom2.b rom2.elf rom2.s19 crctest

rom2.elf: $(OBJS) memory.x check-romsrc.pl
	$(CC) $(LDFLAGS) -o $@ $(OBJS) $(LIBADD)
	$(SIZE) $@
	@perl -w check-romsrc.pl

clean:
	rm -f *.o *.elf *.s19 *.b *.a rom.tar.bz2 romsrc.s crctab.h m68hc11-gdb gencrctab crctest

crctest: crctest.c crctab.h
	gcc -o $@ $<

#
# Some useful rules
#
dump:	rom2.elf
	$(OBJDUMP) -d $<

size:   rom2.s19
	$(SIZE) $<

rom.tar.bz2:
	rm -f romsrc.s crctab.h
	tar c README Makefile gdbsimrc *.pl *.c *.h *.s *.x | bzip2 -c -9 > $@

romsrc.s: rom.tar.bz2 src2asm.pl
	perl -w src2asm.pl < $< > $@

xmodem.c: crctab.h

crctab.h: gencrctab
	./gencrctab > $@

gencrctab: gencrctab.c
	gcc -o $@ $<

.SUFFIXES: .elf .s19 .b

.elf.s19:
	$(OBJCOPY) --output-target=srec $(OBJCOPY_FLAGS) $< $*.s19

.elf.b:
	$(OBJCOPY) --output-target=binary --gap-fill=255 \
                   $(OBJCOPY_FLAGS) $< $*.b
	@perl -e '$$sum = 0;while(read STDIN, $$a, 1){$$sum += ord($$a); $$sum = $$sum&0xffff;} printf "Checksum is \%x\n", $$sum' < $@

m68hc11-gdb: /usr/bin/m68hc11-gdb
	sed -e 's|m68hc11eepr/reg 0xb000 512|m68hc11eepr/reg 0x4000 1  |' < $< > $@
	chmod 755 $@
	
sim: m68hc11-gdb rom2.elf
	./m68hc11-gdb -x gdbsimrc rom2.elf