diff --git a/.gitignore b/.gitignore
index b80458f..e820d88 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,6 +3,7 @@
 /firmware/firmware.bin
 /firmware/firmware.elf
 /firmware/firmware.hex
+/firmware/firmware.dis
 /firmware/firmware.map
 /dhrystone/dhry.bin
 /dhrystone/dhry.elf
diff --git a/Makefile b/Makefile
index 075520f..5a819a2 100644
--- a/Makefile
+++ b/Makefile
@@ -58,6 +58,7 @@ firmware/firmware.elf: $(FIRMWARE_OBJS) $(TEST_OBJS) firmware/sections.lds
 	$(TOOLCHAIN_PREFIX)gcc -Os -mabi=ilp32 -march=rv32im -ffreestanding -nostdlib -o $@ \
 		-Wl,--build-id=none,-Bstatic,-T,firmware/sections.lds,-Map,firmware/firmware.map,--strip-debug \
 		$(FIRMWARE_OBJS) $(TEST_OBJS) -lgcc
+	$(TOOLCHAIN_PREFIX)objdump -S $@ > firmware/firmware.dis
 	chmod -x $@
 
 firmware/start.o: firmware/start.S
@@ -124,7 +125,7 @@ clean:
 	rm -rf riscv-gnu-toolchain-riscv32i riscv-gnu-toolchain-riscv32ic \
 		riscv-gnu-toolchain-riscv32im riscv-gnu-toolchain-riscv32imc
 	rm -vrf $(FIRMWARE_OBJS) $(TEST_OBJS) check.smt2 check.vcd synth.v synth.log \
-		firmware/firmware.elf firmware/firmware.bin firmware/firmware.hex firmware/firmware.map \
+		firmware/firmware.elf firmware/firmware.bin firmware/firmware.dis firmware/firmware.hex firmware/firmware.map \
 		testbench_wb.vvp testbench.vcd testbench.trace \
 		testbench_verilator testbench_verilator_dir