rename testbench to tests

tests/test_basic/Makefile

@@ -0,0 +1,63 @@
+all: verify
+
+TESTBENCH_V = $(wildcard *tb.sv)
+SOURCE_V = $(wildcard ../../src/*.v ../../src/*.sv)
+SOURCE_V += $(wildcard ../common/*.v) $(wildcard ../common/*.sv)
+LOGS = $(TESTBENCH_V:.sv=.log)
+
+SOURCE_C = $(wildcard *.c)
+SOURCE_AS = $(wildcard *.S)
+OBJ = $(notdir $(SOURCE_AS:.S=.o))
+OBJ += $(notdir $(SOURCE_C:.c=.o))
+
+CC = riscv64-linux-gnu-gcc
+CFLAGS = -march=rv32i -mabi=ilp32
+
+CPPFLAGS =
+
+AS = riscv64-linux-gnu-as
+ASFLAGS = -march=rv32i -mabi=ilp32
+
+LD = riscv64-linux-gnu-ld
+LDFLAGS = -melf32lriscv_ilp32
+
+
+# $(info $$TESTBENCH_V is [${TESTBENCH_V}])
+# $(info $$SOURCE_V is [${SOURCE_V}])
+# $(info $$LOGS is [${LOGS}])
+# $(info $$SOURCE_C is [${SOURCE_C}])
+# $(info $$SOURCE_AS is [${SOURCE_AS}])
+# $(info $$OBJ is [${OBJ}])
+
+
+%.o: %.S
+	$(AS) $(ASFLAGS) $^ -o $@
+
+%.o: %.c
+%.s: %.c
+	$(CC) $(CPPFLAGS) $(CFLAGS) -S $^ -o $@
+
+%.elf: %.ld $(OBJ)
+	$(LD) $(LDFLAGS) -T $^ -o $@
+
+%.hex: %.elf
+	riscv64-linux-gnu-objcopy --target=verilog $< $@
+
+%.out: %.sv $(SOURCE_V)
+	iverilog -o $@ $^
+
+%.vcd %.log: %.out %.hex
+	./$< | tee $(patsubst %.out, %.log, $<)
+
+verify: $(LOGS)
+	@echo "Checking log for \"ERROR:\"..."
+	@! grep "ERROR:" $^
+	@echo "Checking log for \"SUCCESS:\"..."
+	@grep "SUCCESS:" $^
+
+clean:
+	rm -rf *.vcd *.log *.out *.hex
+
+.SECONDARY: %.log %.vcd
+.PHONY: all clean verify
+