TOP       := conspiracion
VCD_DIR   := vcd
OBJ_DIR   := obj
RTL_DIR   := rtl
TB_DIR    := tb
VERILATOR := verilator

RTL_FILES  = $(shell find $(RTL_DIR)/ ! -path '$(RTL_DIR)/top/*' -type f -name '*.sv')
RTL_FILES += $(shell find $(TB_DIR)/ ! -path '$(TB_DIR)/top/*' -type f -name '*.sv')
TB_FILES   = $(shell find $(TB_DIR)/ ! -path '$(TB_DIR)/top/*' -type f -name '*.cpp')

all: trace

clean:
	rm -rf $(OBJ_DIR) $(VCD_DIR)

trace: trace/$(TOP)

trace/%: exe/% $(VCD_DIR)/%
	cd $(VCD_DIR)/$* && ../../$(OBJ_DIR)/$*/V$*

$(VCD_DIR)/%:
	mkdir -p $@

exe: exe/$(TOP)

exe/%: $(OBJ_DIR)/%/V%.mk
	$(MAKE) -C $(OBJ_DIR)/$* -f V$*.mk

.SECONDEXPANSION:

$(OBJ_DIR)/%.mk: \
  $(RTL_DIR)/top/$$(word 1,$$(subst /, ,$$*)).sv \
  $$(shell find $(RTL_DIR)/top/$$(dir $$*) -type f -name '*.sv' 2>/dev/null) \
  $$(shell find $(TB_DIR)/top/$$(dir $$*) -type f -name '*.sv' 2>/dev/null) \
  $(RTL_FILES) $(TB_FILES) $(TB_DIR)/top/$$(word 1,$$(subst /, ,$$*)).cpp \
  $$(shell find $(TB_DIR)/top/$$(dir $$*) -type f -name '*.cpp' 2>/dev/null)

	mkdir -p $(dir $@)
	$(VERILATOR) --cc --exe --trace -y $(RTL_DIR) --Mdir $(dir $@) --top $(word 1,$(subst /, ,$*)) $(patsubst tb/%,../tb/%,$^)