CC=cl65
SYS=atari

# the meaning of the -l flag is different between cc65-2.13.3
# and the later github cc65, so it's commented out here.
#COPT=-O -l -T
COPT=-O -T

# for older cc65, we need a custom linker file.
#CFLAGS=-t $(SYS) -C custom.cfg -I. -L. $(COPT)

# for recent git cc65, we can reserve memory on the command line.
# -D__RESERVED_MEMORY__=1056 because cc65's default end of memory
# is $BC20, and we want it to end just below our font, which starts
# at $B800.
# -D__SYSTEM_CHECK__=1 stops cl65 from prepending a bit of code that
# checks to make sure there's enough memory. Older cc65 didn't do this,
# and I never missed it.
CFLAGS=-t $(SYS) -I. -L. -Wl -D__SYSTEM_CHECK__=1 -Wl -D__RESERVED_MEMORY__=1056 $(COPT)
AS=ca65
ASFLAGS=
AR=ar65

VERSION="v0.99alpha-$(shell date +%Y%m%d)-$(shell git rev-parse --short HEAD 2>/dev/null || echo UNKNOWN)"

# A few files have no make rules here. LORCHA.DAT is generated as a
# side-effect of generating taifont.xex. It's a 49-byte (7x7) blob of
# Atari "internal" screen codes.

# TITLE.DAT is generated by Atari BASIC code in TITLE.LST,
# except last time I modified it, I exited the emulator without
# saving the damn BASIC source, so TITLE.LST is outdated. TITLE.DAT
# is a complete 960-byte dump of GR.0 screen memory, which gets
# turned into title.xex and prepended to the main .xex. When
# it loads, it goes straight to screen memory.

# TITLE.DAT, LORCHA.DAT, and PORTSTAT.DAT aren't deleted by a
# 'make clean'.

# romfont is the 1K font extracted from the Atari 800 OS, with a
# command like:
# dd if=atariosb.rom of=1 bs=256 skip=8 count=4
# ...where atariosb.rom comes from e.g. the PC-Xformer 2.5 zip file.

XEX=taipan.xex

all: $(XEX)

ver:
	@echo $(VERSION)

$(XEX): taimain.xex taifont.xex title.xex
	cat taifont.xex title.xex taimain.xex > $(XEX)

title.xex: TITLE.DAT
	perl title.pl TITLE.DAT > title.xex

taimain.xex: taipan.c rand.s draw_lorcha.s taifont.xex
	cl65 -DVERSION=\"$(VERSION)\" --mapfile taipan.map $(CFLAGS) -o taimain.xex taipan.c rand.s draw_lorcha.s timed_getch.s jsleep.s portstat.s

taifont.xex: convfont romfont font
	cat romfont font | ./convfont -x > taifont.xex
	touch draw_lorcha.s

taifont: convfont romfont font
	cat romfont font | ./convfont > taifont

convfont: convfont.c
	gcc -Wall -o convfont convfont.c

test: all
	atari800 -nobasic $(XEX)

.s.o:
	$(AS) $(ASFLAGS) -o $@ $<

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

clean:
	rm -f *.o *.lst convfont *.xex

distclean: clean
	rm -f *~ core .*.swp 1.* 2.* 1 2 3 map map.* *.map a b c foo bar baz

%.xex: %.c
	$(CC) --mapfile map $(CFLAGS) -o $@ $<

lorchatest: lorchatest.c draw_lorcha.s taifont.xex
	cl65 -t atari -O -T -o lorchatest1.xex lorchatest.c draw_lorcha.s
	cat taifont.xex lorchatest1.xex > lorchatest.xex
	atari800 -nobasic lorchatest.xex

PORTSTAT.DAT: mkportstats.xex
	atari800 -nobasic mkportstats.xex