diff --git a/ip.mk b/ip.mk
index 5a4d802..d6d3e64 100644
--- a/ip.mk
+++ b/ip.mk
@@ -1,16 +1,15 @@
 IP_OBJ = \
-	systemid.o \
-	toc.o \
-	sg/sg_sec.o \
-	sg_arejp.o \
-	sg_areus.o \
-	sg_areec.o \
-	sg_are00.o \
-	sg_are01.o \
-	sg_are02.o \
-	sg_are03.o \
-	sg_are04.o \
-	$(START_OBJ)
+	$(LIB)/systemid.o \
+	$(LIB)/toc.o \
+	$(LIB)/sg/sg_sec.o \
+	$(LIB)/sg_arejp.o \
+	$(LIB)/sg_areus.o \
+	$(LIB)/sg_areec.o \
+	$(LIB)/sg_are00.o \
+	$(LIB)/sg_are01.o \
+	$(LIB)/sg_are02.o \
+	$(LIB)/sg_are03.o \
+	$(LIB)/sg_are04.o
 
 SERIAL_LOAD_OBJ = \
 	example/serial_transfer.o \
@@ -20,21 +19,10 @@ SERIAL_LOAD_OBJ = \
 	font/portfolio_6x8/portfolio_6x8.data.o \
 	crc32.o
 
-GDROM_JVM_BOOT_OBJ = \
-	example/gdrom_jvm_boot.o \
-	sh7091/serial.o \
-	crc32.o
-
 %.o: %.obj
 	$(OBJCOPY) -g \
 		--rename-section IP=.text.$* \
 		$< $@
 
-serial_load_ip.elf: $(IP_OBJ) $(SERIAL_LOAD_OBJ)
+serial_load_ip.elf: $(IP_OBJ) $(START_OBJ) $(SERIAL_LOAD_OBJ)
 	$(LD) --orphan-handling=error --print-memory-usage -T $(LIB)/ip.lds $^ -o $@
-
-gdrom_jvm_boot_ip.elf: $(IP_OBJ) $(GDROM_JVM_BOOT_OBJ)
-	$(LD) --orphan-handling=error --print-memory-usage -T $(LIB)/ip.lds $^ -o $@
-
-gdrom-jvm-boot-ip-bin: gdrom_jvm_boot_ip.bin
-	cp $< ip.bin