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BUILD_DIR ?= build
RTL_SOURCES ?= $(wildcard ../../rtl/src/*.v)
TESTVEC_DIR ?= ../../build
INCLUDE = ../../rtl
TESTVECS ?= $(wildcard $(TESTVEC_DIR)/testvec_*.txt)
# tools
IVERILOG = iverilog
VVP = vvp
GTKWAVE = gtkwave
# dirs and files
SOURCE_DIR = src
SOURCES = $(wildcard $(SOURCE_DIR)/*.v)
WAVEFORMS = $(patsubst testvec_%, $(BUILD_DIR)/waveform_%.vcd, $(basename $(notdir $(TESTVECS))))
# targets
all: $(WAVEFORMS)
# generate testbenches
$(BUILD_DIR)/testbench_%: $(SOURCE_DIR)/testbench_%.v $(RTL_SOURCES) | $(BUILD_DIR) always
$(IVERILOG) -I $(INCLUDE) -o $@ $^
# run testbenches
$(BUILD_DIR)/waveform_%.vcd: $(BUILD_DIR)/testbench_% always
$(VVP) $< +testvec=$(shell realpath $(TESTVEC_DIR)/testvec_$*.txt) +waveform=$@
$(BUILD_DIR):
mkdir -p $(BUILD_DIR)
wave: all
$(GTKWAVE) -a ../../debug/cpu.gtkw $(BUILD_DIR)/waveform_cpu.vcd > /dev/null 2>&1 & disown
# dummy target, s.t. other targets will always be run
always:
clean:
rm -rf $(BUILD_DIR)
.PHONY: all clean always
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