diff --git a/Makefile b/Makefile
index 3ca31a1..b1b0499 100644
--- a/Makefile
+++ b/Makefile
@@ -5,7 +5,7 @@ LD=$(PREFIX)-ld
 OBJCOPY=$(PREFIX)-objcopy
 OBJDUMP=$(PREFIX)-objdump
 
-all: bin/IIxIIcxSE30/IIxIIcxSE30_8M.bin bin/IIci/IIci_8M.bin bin/IIfx/IIfx_8M.bin bin/IIsi/IIsi_8M.bin bin/GWSys71_8M.bin bin/GWSys6_8M.bin bin/GWSys7Diagnostics_8M.bin obj/rdisk.s obj/driver.s obj/driver_abs.sym
+all: bin/IIxIIcxSE30/IIxIIcxSE30_8M.bin bin/IIci/IIci_8M.bin bin/IIfx/IIfx_8M.bin bin/IIsi/IIsi_8M.bin bin/GWSys71_8M.bin bin/GWSys6_8M.bin bin/GWSys7Diagnostics_8M.bin bin/GWSys6IIxIIsi.bin obj/rdisk.s obj/driver.s obj/driver_abs.sym
 
 obj:
 	mkdir -p $@
@@ -169,6 +169,10 @@ bin/IIsi/IIsi_4M.bin: bin/IIsi bin/IIsi/IIsi_2M.bin
 bin/IIsi/IIsi_8M.bin: bin/IIsi bin/IIsi/IIsi_4M.bin
 	cat bin/IIsi/IIsi_4M.bin > $@; cat bin/IIsi/IIsi_4M.bin >> $@
 
+bin/GWSys6IIxIIsi.bin: bin/GWSys6_4M.bin bin/IIsi/IIsi_2M.bin bin/IIxIIcxSE30/IIxIIcxSE30_2M.bin
+	cat bin/GWSys6_4M.bin > $@;
+	cat bin/IIxIIcxSE30/IIxIIcxSE30_2M.bin >> $@;
+	cat bin/IIsi/IIsi_2M.bin >> $@;
 
 .PHONY: clean
 clean:
diff --git a/bin/GWSys6IIxIIsi.bin b/bin/GWSys6IIxIIsi.bin
new file mode 100644
index 0000000..5841f73
Binary files /dev/null and b/bin/GWSys6IIxIIsi.bin differ