diff --git a/sw/bios/Makefile b/sw/bios/Makefile
index ac2d520..51b5dd4 100644
--- a/sw/bios/Makefile
+++ b/sw/bios/Makefile
@@ -1,13 +1,9 @@
 CC=../cc65/bin/cl65
 CFLAGS=-T -t none -I. --cpu "65C02"
-test: CFLAGS=-T -t sim65c02 -I.
 LDFLAGS=-C link.ld -m $(NAME).map
-SIM=sim65
-SIMARGS=-v -c -x 1000000
 
 NAME=bootloader
 
-TEST_BIN=test.bin
 BIN=$(NAME).bin
 HEX=$(NAME).hex
 
@@ -19,19 +15,8 @@ SRCS+=$(filter-out $(wildcard tests/*), $(wildcard **/*.s)) $(filter-out $(wildc
 OBJS+=$(patsubst %.s,%.o,$(filter %s,$(SRCS)))
 OBJS+=$(patsubst %.c,%.o,$(filter %c,$(SRCS)))
 
-TEST_SRCS=$(wildcard $(TESTS)/*.s) $(wildcard $(TESTS)/*.c)
-TEST_OBJS+=$(patsubst %.s,%.o,$(filter %s,$(TEST_SRCS)))
-TEST_OBJS+=$(patsubst %.c,%.o,$(filter %c,$(TEST_SRCS)))
-TEST_OBJS+=$(filter-out boot.o,$(filter-out main.o,$(filter-out vectors.o,$(OBJS))))
-
 all: $(HEX)
 
-test: $(TEST_BIN)
-	$(SIM) $(SIMARGS) $(TEST_BIN)
-
-$(TEST_BIN): $(OBJS) $(TEST_OBJS)
-	$(CC) $(CFLAGS) $(TEST_OBJS) -o $@	
-
 $(HEX): $(BIN)
 	objcopy --input-target=binary --output-target=verilog $(BIN) $(HEX)
 	
@@ -47,10 +32,8 @@ $(BIN): $(OBJS)
 
 $(LISTS):
 	mkdir -p $(addprefix $(LISTS)/,$(sort $(dir $(SRCS))))
-	mkdir $(LISTS)/$(sort $(dir $(TEST_SRCS)))
 
 .PHONY: clean
 clean:
 	rm -rf $(OBJS) $(BIN) $(HEX) $(LISTS) $(NAME).map
-	rm -rf $(TEST_OBJS) $(TEST_BIN)
 
diff --git a/sw/bootloader/Makefile b/sw/bootloader/Makefile
index 89937af..006cf3a 100644
--- a/sw/bootloader/Makefile
+++ b/sw/bootloader/Makefile
@@ -35,5 +35,4 @@ $(LISTS):
 .PHONY: clean
 clean:
 	rm -rf $(OBJS) $(BIN) $(HEX) $(LISTS) $(NAME).map
-	rm -rf $(TEST_OBJS) $(TEST_BIN)