diff --git a/lib/make/mb_msxrom.mk b/lib/make/mb_msxrom.mk
index 1b25fcd..3846fc5 100644
--- a/lib/make/mb_msxrom.mk
+++ b/lib/make/mb_msxrom.mk
@@ -112,9 +112,26 @@ define mb_msxrom_machine_Yamaha_YIS-503IIIR
 	$(call mb_msxrom_file,$(1)-omsx/share/systemroms/machines,machines/yamaha/yis503iii_net_2.rom)
 endef
 
+define mb_msxrom_machine_Panasonic_FS-A1WSX
+	$(call mb_msxrom_file,$(1)-omsx/share/systemroms/machines,machines/panasonic/fs-a1wsx_basic-bios2p.rom)
+	$(call mb_msxrom_file,$(1)-omsx/share/systemroms/machines,machines/panasonic/fs-a1wsx_disk.rom)
+	$(call mb_msxrom_file,$(1)-omsx/share/systemroms/machines,machines/panasonic/fs-a1wsx_firmware.rom)
+	$(call mb_msxrom_file,$(1)-omsx/share/systemroms/machines,machines/panasonic/fs-a1wsx_fmbasic.rom)
+	$(call mb_msxrom_file,$(1)-omsx/share/systemroms/machines,machines/panasonic/fs-a1wsx_kanjibasic.rom)
+	$(call mb_msxrom_file,$(1)-omsx/share/systemroms/machines,machines/panasonic/fs-a1wsx_kanjifont.rom)
+	$(call mb_msxrom_file,$(1)-omsx/share/systemroms/machines,machines/panasonic/fs-a1wsx_msx2psub.rom)
+endef
+
 define mb_msxrom_machine_Boosted_MSX2_EN
 	$(call mb_msxrom_machine_Philips_NMS_8250,$(1))
 	$(call mb_msxrom_extension_fmpac,$(1))
 	$(call mb_msxrom_extension_moonsound,$(1))
 	$(call mb_msxrom_extension_basickun,$(1))
 endef
+
+define mb_msxrom_machine_Boosted_MSX2+_JP
+	$(call mb_msxrom_machine_Panasonic_FS-A1WSX,$(1))
+	$(call mb_msxrom_extension_moonsound,$(1))
+	$(call mb_msxrom_extension_basickun,$(1))
+endef
+