diff --git a/build/components/jackal.TWL/Makefile b/build/components/jackal.TWL/Makefile
index 5921c0b7..fd18e91e 100644
--- a/build/components/jackal.TWL/Makefile
+++ b/build/components/jackal.TWL/Makefile
@@ -42,7 +42,7 @@ SRCS			=	$(HYENA_SRCDIR)/crt0.LTD.c \
 TARGET_NAME		=	jackal
 
 TARGET_NEF		=	$(TARGET_NAME).tef
-LCFILE_SPEC		=	$(TARGET_NAME).lsf
+LCFILE_SPEC		=	$(TARGET_NAME)$(CODEGEN_ARCH).lsf
 LCFILE_TEMPLATE	=	$(TARGET_NAME).lcf.template
 LDRES_TEMPLATE	=	$(ROOT)/build/components/armadillo.TWL/armadillo.response.template
 
diff --git a/build/components/jackal.TWL/jackal.thumb.lsf b/build/components/jackal.TWL/jackal.thumb.lsf
new file mode 100644
index 00000000..ba9cde6e
--- /dev/null
+++ b/build/components/jackal.TWL/jackal.thumb.lsf
@@ -0,0 +1,107 @@
+#----------------------------------------------------------------------------
+# Project:  TwlSDK - components - armadillo.TWL
+# File:     armadillo.lsf
+#
+# Copyright 2008 Nintendo.  All rights reserved.
+#
+# These coded insructions, statements, and computer programs contain
+# proprietary information of Nintendo of America Inc. and/or Nintendo
+# Company Ltd., and are protected by Federal copyright law.  They may
+# not be disclosed to third parties or copied or duplicated in any form,
+# in whole or in part, without the prior written consent of Nintendo.
+#
+# $Date:: 2008-07-24#$
+# $Rev: 1974 $
+# $Author: yosiokat $
+#----------------------------------------------------------------------------
+#
+#  Nitro LCF SPEC FILE
+#
+#--------
+Static $(TARGET_NAME)
+{
+	Address		$(ADDRESS_FLXMAIN)
+	StackSize	1024 1024
+
+	Library		$(CRT0_O)
+	Object		$(OBJDIR)/initScfg.o
+}
+
+#--------
+Ltdautoload SCRWRAM
+{
+	Address		0x03758000
+
+	Library		libsubpsyscall.a
+	Library		libsyscall_sp.twl.a
+	Library		$(CW_LIBS)
+	Library		$(ISDBG_LIBS_TWL)
+	Library		$(ISDBG_LIBS_NITRO)
+
+	Object		* (.etable)
+	Object		$(OBJDIR)/main.o
+
+	Library		libsea_sp$(LIBSUFFIX).a
+	Library		libcrypto_sp$(LIBSUFFIX).a
+
+	Library		libos_sp$(LIBSUFFIX).a
+	Library		libmi_sp$(LIBSUFFIX).a
+	Library		libstd_sp$(LIBSUFFIX).a
+	Library		libmath_sp$(LIBSUFFIX).a
+	Library		libpxi_sp$(LIBSUFFIX).a
+	Library		libexi_sp$(LIBSUFFIX).a
+	Library		libi2c_sp$(LIBSUFFIX).a
+	Library		libsdio_sp$(LIBSUFFIX).a
+	Library		libpad_sp$(LIBSUFFIX).a
+	Library		libscfg_sp$(LIBSUFFIX).a
+	Library		libmcu_sp$(LIBSUFFIX).a
+	Library		libcdc_sp$(LIBSUFFIX).a
+	Library		libsnd_sp$(LIBSUFFIX).a
+	Library		libsndex_sp$(LIBSUFFIX).a
+	Library		libspi_sp$(LIBSUFFIX).a
+	Library		libpm_sp.SYSMENU$(LIBSUFFIX).a
+	Library		libtp_sp$(LIBSUFFIX).a
+	Library		libtpex_sp$(LIBSUFFIX).a
+	Library		libnvram_sp$(LIBSUFFIX).a
+	Library		librtc_sp$(LIBSUFFIX).a
+	Library		libfatfs_sp$(LIBSUFFIX).a
+	Library		libwl_sp$(LIBSUFFIX).a
+	Library		libathdrv_sp$(LIBSUFFIX).a
+	Library		libfs_sp$(LIBSUFFIX).a
+	Library		libcard_sp$(LIBSUFFIX).a
+	Library		libcamera_sp$(LIBSUFFIX).a
+	Library		libnwm_sp.SYSMENU$(LIBSUFFIX).a
+	Library		libwvr_sp$(LIBSUFFIX).a
+	Library		libwm_sp$(LIBSUFFIX).a (.bss)
+	Library		libmic_sp$(LIBSUFFIX).a (.bss)
+	Library		libmicex_sp$(LIBSUFFIX).a (.bss)
+
+	Library		libboot_sp$(LIBSUFFIX).a
+	Library		libreboot_sp$(LIBSUFFIX).a
+	Library		libhotsw_sp$(LIBSUFFIX).a
+	Library		libreloc_info_sp$(LIBSUFFIX).a
+	Library		libsysmenu_sp$(LIBSUFFIX).a
+	Library		libsysmmcu_sp$(LIBSUFFIX).a
+	Library		libds_sp$(LIBSUFFIX).a
+	Library		libaes_sp$(FIRM_LIBSUFFIX).a
+	Library		libdht_sp$(LIBSUFFIX).a
+
+#	Library		libwpa_sp$(LIBSUFFIX).a
+	Library		libwm_sp$(LIBSUFFIX).a (.text)
+	Library		libwm_sp$(LIBSUFFIX).a (.rodata)
+	Library		libwm_sp$(LIBSUFFIX).a (.data)
+	Library		libmic_sp$(LIBSUFFIX).a (.text)
+	Library		libmic_sp$(LIBSUFFIX).a (.rodata)
+	Library		libmic_sp$(LIBSUFFIX).a (.data)
+	Library		libmicex_sp$(LIBSUFFIX).a (.text)
+	Library		libmicex_sp$(LIBSUFFIX).a (.rodata)
+	Library		libmicex_sp$(LIBSUFFIX).a (.data)
+
+	Object		* (.wram)
+	Object		* (.ltdwram)
+	Object		* (.rsvwram)
+	Object		* (.main)
+	Object		* (.ltdmain)
+}
+
+# BootROMの鍵データが0x0380c400〜にあるので、jackalのWRAM配置の上限はその値になることに注意。