Makefile_cc65

SHELL:=/bin/bash
XEMU=xmega65
TESTS_DIR := tests
TESTS_SRCS := $(wildcard $(TESTS_DIR)/*.c)
TESTS_PRGS := $(TESTS_SRCS:.c=.prg)

ifdef USE_LOCAL_CC65
    # use locally installed binary (requires 'cc65,ld65,etc' to be in the $PATH)
    CC65_PREFIX=
else
    # use the binary built from the submodule
    CC65_PREFIX=$(PWD)/cc65/bin/
endif

CC65=$(CC65_PREFIX)cc65
CL65=$(CC65_PREFIX)cl65
CA65=$(CC65_PREFIX)ca65 --cpu 4510
AR65=$(CC65_PREFIX)ar65

CFLAGS=-O -t c64 -I include/

LIB_OBJECTS = \
	src/cc65/dirent.o \
	src/cc65/fileio.o \
	src/cc65/memory_asm.o \
	src/conio.o \
	src/debug.o \
	src/fat32.o \
	src/fcio.o \
	src/hal.o \
	src/math.o \
	src/memory.o \
	src/mouse.o \
	src/random.o \
	src/sdcard.o \
	src/targets.o \
	src/tests.o \
	src/time.o

.PHONY: all clean cleanall test

all: libmega65.a ${TESTS_PRGS}

libmega65.a: $(LIB_OBJECTS)
	$(AR65) a $@ $^

clean:
	rm -f $(LIB_OBJECTS) $(TESTS_PRGS) tests/*.o
	rm -rf work

cleanall: clean
	rm -f libmega65.a

src/cc65/%.o: src/cc65/%.s
	$(CA65) -o $@ $<

src/%.o: src/%.c
	@if [[ ! -d work ]]; then \
		mkdir work; \
	fi
	$(CC65) $(CFLAGS) -o work/$*.s $<
	$(CA65) -o $@ work/$*.s

# Unit tests using Xemu in "testing" mode
#
# - Xemu `xmega65` must be in your path
# - Xemu's return code is controlled by register 0xD6CF
# - All tests are in the `tests/` directory
tests/%.prg: tests/%.c libmega65.a
	$(CL65) $(CFLAGS) $< -o $@ libmega65.a
test: | $(TESTS_PRGS)
	@if ! command -v $(XEMU) &> /dev/null; then \
	    echo "Cannot run tests as xmega65 (Xemu) is not in your path."; \
	else \
	    for test in $(TESTS_PRGS); do \
	        if $(XEMU) -testing -hyperserialascii -sleepless -headless -model 3 -prg $$test &> /dev/null; then \
                    echo "Test passed: $$test"; \
	        else \
	            echo "Test FAILED: $$test"; \
	        fi; \
	    done; \
        fi