GHDL = ghdl

VIEWER = gtkwave
WAVEFILE = simulation/waves.vcd

#TOP_DESIGN = top.vhd # Not used when not synthesizing..
# Add design files to this row
DESIGN_FILES = generic_counter.vhd

DESIGN_FILES_DIR = hdl_design
DESIGN_FILES_FULL_PATH = $(addprefix $(DESIGN_FILES_DIR)/,$(DESIGN_FILES))

WORK_DIR = simulation
WORK_LIBRARY = work
GHDL_OPTIONS = --work=$(WORK_LIBRARY) --workdir=$(WORK_DIR)

# Name of the testbench entity to simulate
TOP_TESTBENCH = tb

# Add all testbench-related files on this row
TEST_BENCHES = tb.vhd

TEST_BENCHES_DIR = testbench
TEST_BENCHES_FULL_PATH = $(addprefix $(TEST_BENCHES_DIR)/,$(TEST_BENCHES))

.PHONY: all clean analyze elaborate run view debug

all: analyze elaborate run view

analyze: $(DESIGN_FILES_FULL_PATH) $(TEST_BENCHES_FULL_PATH)
	$(GHDL) -a $(GHDL_OPTIONS) $(DESIGN_FILES_FULL_PATH) $(TEST_BENCHES_FULL_PATH)

elaborate: analyze
	$(GHDL) -e $(GHDL_OPTIONS) $(TOP_TESTBENCH)

run: elaborate
	$(GHDL) -r $(GHDL_OPTIONS) $(TOP_TESTBENCH) --vcd=$(WAVEFILE)

view: run
	$(VIEWER) $(WAVEFILE)

clean:
	$(GHDL) --remove $(GHDL_OPTIONS)

debug:
	echo $(DESIGN_FILES_FULL_PATH)