# Build ddt180.com from ddt180.z80

CPM	:= 0

PROG	:= ddt180
OBJ	:= $(PROG).rel

ifneq ($(CPM),0)
  SUFFIX := z80
else
  SUFFIX := 180
endif
CURCPM := $(shell awk -e '/CPM/ {print $$3}' config.inc 2>/dev/null)
ifneq ($(CPM),$(CURCPM))
  $(shell printf "	CPM	equ	$(CPM)\r\n\032" > config.inc)
endif


EXTRA_DIST := autorevision.cache version.inc


DIST_NAME = $(PROG)_$(VERS).zip
PREFIX = $(PROG)_$(VERS)

ASM	:= zxcc slr$(SUFFIX).com
LINK	:= zxcc link80.com
CP	:= cp
RM	:= rm -f
GIT	:= git
ZIP	:= zip

AS_OPT	:= MFSX

.PHONY: all
all: $(PROG).com prl2offz

.INTERMEDIATE: $(PROG).180

$(PROG).180: $(PROG).z80
	cp $< $@

$(PROG).com: $(PROG).prl Makefile prl2offz
	@# Convert relocation bitmap to compressed list of offsets
	./prl2offz $< $@

$(PROG).prl: $(OBJ)
	$(LINK) -'$(PROG)[op]'

$(PROG).rel: config.inc version.inc

prl2offz: prl2offz.c
	gcc -Wall -Wextra -O2 -g -o $@ $<

$(foreach X,$(subst =,:=,$(subst ",,$(filter VCS_%,\
	$(shell autorevision -t sh -o $(CURDIR)/autorevision.cache)))),$(eval $X))

VERS := $(shell echo "$(VCS_TAG)" | sed -e 's/^v//g')

ifneq ($(VCS_TICK),0)
  VERS := $(VERS)-$(VCS_TICK)
endif
ifneq ($(VCS_BRANCH),master)
  VERS := $(VERS)-$(VCS_BRANCH)
endif
ifeq ($(VCS_WC_MODIFIED),1)
  VERS := $(VERS)-dirty
endif

version.inc: autorevision.cache
	@echo update $@ to $(VERS)
	@printf "defvers	macro\r\n\
		db	'$(VERS)'\r\n\
		endm\r\n\032" > $@

.PHONY: dist
dist: $(PROG).com version.inc
	$(GIT) archive --format=zip --prefix=$(PREFIX)/ -9 -o $(DIST_NAME) HEAD^{tree}
	@mkdir -p $(PREFIX)
	@$(CP) -p $(EXTRA_DIST) $(PREFIX)
	$(ZIP) -r -9 $(DIST_NAME) $(PREFIX) $(PROG).com
	@$(RM) -r $(PREFIX)

.PHONY: clean
clean:
	rm -f $(PROG).com $(PROG).180 *.rel *.lst *.prl

.SUFFIXES:
.SUFFIXES: .z80 .180 .rel .prl


define cpm-asm =
COMMAND="$(ASM) -$(basename $<)/$(AS_OPT)"; \
OUTPUT=$$(mktemp); echo $${COMMAND}; \
$${COMMAND} > $${OUTPUT} < $<; \
grep -q '^ 0 Error(s) Detected' $${OUTPUT}; ERROR=$$? ; \
if [ "$${ERROR}" != "0" ]; then cat $${OUTPUT}; rm -f $@; \
else awk -f filter-unref.awk ddt180.lst; fi ; \
exit $${ERROR}
endef

%.rel %lst: %.$(SUFFIX)
	@$(cpm-asm)