diff --git a/Makefile.32u4 b/Makefile.32u4
new file mode 100644
index 0000000..944e2f2
--- /dev/null
+++ b/Makefile.32u4
@@ -0,0 +1,64 @@
+CC=avr-gcc
+AS=$(CC)
+LD=$(CC)
+
+include Makefile.inc
+
+PROGNAME=gcn64usb
+OBJDIR=objs-$(PROGNAME)
+CPU=atmega32u4
+CFLAGS=-Wall -mmcu=$(CPU) -DF_CPU=16000000L -Os -DUART1_STDOUT -DVERSIONSTR=$(VERSIONSTR) -DVERSIONSTR_SHORT=$(VERSIONSTR_SHORT) -DVERSIONBCD=$(VERSIONBCD) -std=gnu99
+LDFLAGS=-mmcu=$(CPU) -Wl,-Map=$(PROGNAME).map
+HEXFILE=$(PROGNAME).hex
+
+all: $(HEXFILE)
+
+clean:
+	rm -f $(PROGNAME).elf $(PROGNAME).hex $(PROGNAME).map $(OBJS)
+
+gcn64txrx0.o: gcn64txrx.S
+	$(CC) $(CFLAGS) -c $< -o $@ -DSUFFIX=0 -DGCN64_DATA_BIT=0
+
+gcn64txrx1.o: gcn64txrx.S
+	$(CC) $(CFLAGS) -c $< -o $@ -DSUFFIX=1 -DGCN64_DATA_BIT=2
+
+gcn64txrx2.o: gcn64txrx.S
+	$(CC) $(CFLAGS) -c $< -o $@ -DSUFFIX=2 -DGCN64_DATA_BIT=1
+
+gcn64txrx3.o: gcn64txrx.S
+	$(CC) $(CFLAGS) -c $< -o $@ -DSUFFIX=3 -DGCN64_DATA_BIT=3
+
+%.o: %.S
+	$(CC) $(CFLAGS) -c $< -o $@
+
+%.o: %.c
+	$(CC) $(CFLAGS) -c $< -o $@
+
+%.o: %.c %.h
+	$(CC) $(CFLAGS) -c $< -o $@
+
+$(PROGNAME).elf: $(OBJS)
+	$(LD) $(OBJS) $(LDFLAGS) -o $(PROGNAME).elf
+
+$(PROGNAME).hex: $(PROGNAME).elf
+	avr-objcopy -j .data -j .text -O ihex $(PROGNAME).elf $(PROGNAME).hex
+	avr-size $(PROGNAME).elf -C --mcu=$(CPU)
+
+fuse:
+
+flash: $(HEXFILE)
+	- ./scripts/enter_bootloader.sh
+	./scripts/wait_then_flash.sh $(CPU) $(HEXFILE)
+
+justflash: $(HEXFILE)
+	./scripts/wait_then_flash.sh $(CPU) $(HEXFILE)
+
+chip_erase:
+	dfu-programmer $(CPU) erase
+
+reset:
+	dfu-programmer $(CPU) reset
+
+restart:
+	- ./scripts/enter_bootloader.sh
+	./scripts/start.sh $(CPU)