# To build single-core dual-port tb: make
# To build dual-core single-port tb: make DOTF=tb_multicore.f

include ../project_paths.mk

TOP       := example_soc
DOTF      := tb.f
CONFIG    := default
TBEXEC    := $(patsubst %.f,%,$(DOTF))

FILE_LIST := $(shell HDL=$(HDL) $(SCRIPTS)/listfiles $(DOTF))
BUILD_DIR := build-$(patsubst %.f,%,$(DOTF))

# Note: clang++-18 has a >20x compile time regression, even at low
# optimisation levels. I have tried clang++-16 and clang++-17, both fine.
CLANGXX   := clang++-16

.PHONY: clean all lint

all: $(TBEXEC)

SYNTH_CMD += read_verilog -I ../../../hdl -DCONFIG_HEADER="config_$(CONFIG).vh" $(FILE_LIST);
SYNTH_CMD += hierarchy -top $(TOP);
SYNTH_CMD += write_cxxrtl $(BUILD_DIR)/dut.cpp

$(BUILD_DIR)/dut.cpp: $(FILE_LIST) $(wildcard *.vh)
	mkdir -p $(BUILD_DIR)
	yosys -p '$(SYNTH_CMD)' 2>&1 > $(BUILD_DIR)/cxxrtl.log

clean::
	rm -rf $(BUILD_DIR) $(TBEXEC)

sim: $(TBEXEC)
	./$(TBEXEC) --port 9824

openocd:
	openocd -f openocd.cfg

gdb:
	/opt/riscv/bin/riscv32-unknown-elf-gdb -x gdb_init

$(TBEXEC): $(BUILD_DIR)/dut.cpp tb.cpp
	$(CLANGXX) -O3 -std=c++14 $(addprefix -D,$(CDEFINES) $(CDEFINES_$(DOTF))) -I $(shell yosys-config --datdir)/include/backends/cxxrtl/runtime -I $(BUILD_DIR) tb.cpp -o $(TBEXEC)

lint:
	verilator --lint-only --top-module $(TOP) -I$(HDL) $(FILE_LIST)